FIELD

The present disclosure relates to the field of communication technology and in particular relate to a television device and a control method thereof.

BACKGROUND

This section provides background information related to the present disclosure which is not necessarily prior art.

A USB-Type-C interface is for transmitting a USB2.0 signal, a USB3.0 signal and a non-USB signal and is generally applied to a mobile phone terminal or a computer. Generally, the USB-Type-C interface is connected to a mobile phone, the computer or a PAD to perform high-speed data transmission. The USB-Type-C interface in related art may also be applied to a display screen (Monitor) device, but is rarely applied to a television device.

The main reason of limiting the application of the USB-Type-C interface to the television device is that there is a problem that the compatibility between a billboard signal transmission function and a USB2.0 signal transmission function cannot be met when the USB-Type-C interface is applied to the television device.

When a USB2.0 signal is interacted between the television device and an external device of the USB-Type-C interface, the television device may be used as a host of the external device of the USB-Type-C interface, and the external device of the USB-Type-C interface may be used as a peripheral of the television device. When a billboard signal is interacted between the television device and the external device of the USB-Type-C interface, the television device may be used as a peripheral of the external device of the USB-Type-C interface, and the external device of the USB-Type-C interface may be used as a host of the television device. However, the number of USB D+/D− differential terminals of the USB-Type-C interface is fixed, and therefore, the two application demands cannot be simultaneously met.

Based on the above, due to the incompatibility between the billboard signal transmission function and the USB2.0 signal transmission function when the USB-Type-C interface is applied to the television device, the USB-Type-C interface may not be used as a multifunctional interface to be applied to the television device.

SUMMARY

This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

Embodiments of the present disclosure provide a television device and a control method thereof, and the television device may be a television device, so that a USB Type-C interface may be applied to the television device, and the compatibility between a billboard signal transmission function and a USB2.0 signal transmission function may be realized.

According to a first aspect, a television device is provided, which includes:

an SOC chip provided with a DFP interface, the DFP interface being connected to a switch module via a USB D+/D− differential pair, and the USB D+/D− differential pair between the DFP interface and the switch module being a first channel;

a USB Type-C interface master control module provided with a UFP interface, the UFP interface being connected to the switch module via a USB D+/D− differential pair, and the USB D+/D− differential pair between the UFP interface and the switch module being a second channel; and

the USB Type-C interface connected to the switch module via a USB D+/D− differential pair;

where the USB Type-C interface master control module is connected to the switch module via a control signal line to control the switch module to turn on the first channel and turn off the second channel or turn on the second channel and turn off the first channel.

In some embodiments, the USB Type-C interface master control module is connected to the USB Type-C interface via a control signal line to interact a CC signal with the USB Type-C interface to identify a type of an external device of the USB-Type-C interface and control the switch module to turn on the first channel and turn off the second channel or turn on the second channel and turn off the first channel according to the identified type.

In some embodiments, when the USB Type-C interface master control module is configured to control the switch module to turn on the first channel and turn off the second channel when identifying that the external device of the USB Type-C interface is a USB device and control the switch module to turn on the second channel and turn off the first channel when identifying that the external device of the USB Type-C interface is an ALT MODE device.

In some embodiments, the television device further includes a multiplexing switch; the multiplexing switch is connected to the USB Type-C interface via a USB SSTX/RX differential pair and is connected to the DFP interface via a USB SSTX/RX differential pair, and the USB SSTX/RX differential pair between the multiplexing switch and the DFP interface is a third channel;

the SOC chip further includes an HDMI interface for receiving or transmitting an HDMI signal;

the multiplexing switch is connected to the HDMI interface via an HDMI signal channel, and the HDMI signal channel between the multiplex switch and the HDMI interface is a fourth channel; and

the USB Type-C interface master control module is connected to the multiplexing switch via a control signal line to control the multiplexing switch to turn on the third channel and turn off the fourth channel when identifying that the external device of the USB Type-C interface is the USB device, or control the multiplexing switch to turn on the fourth channel and turn off the third channel when identifying that the external device of the USB Type-C interface is the ALT MODE device.

In some embodiments, the television device further includes a protocol conversion module between the multiplexing switch and the HDMI interface. The protocol conversion module is configured to convert a DP signal into the HDMI signal when the DP signal is transmitted by the ALT MODE device, so that the HDMI signal is transmitted to the HDMI interface of the SOC chip.

In some embodiments, the DFP interface includes a USB2.0 interface and a USB3.0 interface; and when the external device of the USB Type-C interface is the USB device, a USB2.0 signal is interacted between the DFP interface and the external device of the USB Type-C interface via the first channel; or a USB3.0 signal is interacted between the DFP interface and the external device of the USB Type-C interface via the third channel.

In some embodiments, when the external device is a USB DFP device, the USB Type-C interface is adapted to be in a USB UFP mode; and when the external device supports a DP DFP mode, the USB Type-C interface is switched to be in a DP DFP mode to perform DP signal transmission.

In some embodiments, when the external device is a USB UFP device, the USB Type-C interface is adapted to be in a USB DFP mode.

In some embodiments, the UFP interface is a billboard signal output interface for outputting a billboard signal; and when the external device of the USB Type-C interface is the ALT MODE device, the billboard signal output interface may transmit the billboard signal to the ALT MODE device externally connected to the USB Type-C interface via the second channel.

In some embodiments, the switch module is default to turn on the first channel.

In some embodiments, the billboard signal includes transmission mode information supported by the television device; and the USB Type-C interface master control module is configured to: control the switch module to be switched to the second channel when detecting that a computer is plugged into the USB Type-C interface and to control the switch module to be switched to the first channel after the computer acquires the transmission mode information.

According to a second aspect, some embodiments of the present disclosure provide a control method of a television device, including: transmitting, by a USB Type-C interface master control module, a first control signal or a second control signal to a switch module, where the first control signal is configured to control the switch module to turn on a first channel and turn off a second channel, and the second control signal is configured to control the switch module to turn on the second channel and turn off the first channel.

In some embodiments, before the USB Type-C interface master control module transmits the first control signal, the control method further includes: interacting a CC signal between the USB Type-C interface master control module and a USB Type-C interface; and identifying a type of an external device of the USB Type-C interface according to the CC signal.

In some embodiments, transmitting, by the USB Type-C interface master control module, the first control signal or the second control signal to the switch module, includes: transmitting the first control signal to the switch module when identifying that the external device of the USB Type-C interface is a USB device; and transmitting the second control signal to the switch module when identifying that the external device of the USB Type-C interface is an ALT MODE device.

In some embodiments, the method further includes: transmitting a third control signal to a multiplexing switch when identifying that the external device of the USB Type-C interface is the USB device, where the third control signal is configured to control the multiplexing switch to turn on a third channel and turn off a fourth channel; and transmitting a fourth control signal to the multiplexing switch when identifying that the external device of the USB Type-C interface is the ALT MODE device, where the fourth control signal is configured to control the multiplexing switch to turn on the fourth channel and turn off the third channel.

According to a third aspect, some embodiments of the present disclosure provide a television device including:

an SOC chip provided with USB D+/D− differential terminals for inputting or outputting a USB D+/D− signal and electrically connected to USB D+/D− differential terminals provided by a switch module to form a selectable first channel;

a C interface master control module provided with USB D+/D− differential terminals for inputting the USB D+/D− signal or outputting a billboard signal and electrically connected to the USB D+/D− differential terminals provided by the switch module to form a selectable second channel; and

a USB Type-C interface provided with USB D+/D− differential terminals for inputting or outputting the USB D+/D− signal and electrically connected to the USB D+/D− differential terminals provided by the switch module;

where the C interface master control module is further provided with a control signal output pin for outputting a first control signal or a second control signal and electrically connected to a control signal input pin of the switch module; and the first control signal is configured to turn on the first channel and turn off the second channel, and the second control signal is configured to turn on the second channel and turn off the first channel.

In some embodiments, the C interface master control module is provided with a CC pin, the CC pin is electrically connected to a CC pin in the USB Type-C interface and is for inputting or outputting a CC signal so as to identify a type of an external device of a C interface.

In some embodiments, the C interface master control module is configured to input the first control signal to the control signal input pin of the switch module when identifying that an external device of the USB Type-C interface is a USB device and to input the second control signal to the control signal input pin of the switch module when identifying that the external device of the USB Type-C interface is an ALT MODE device.

In some embodiments, the television device further includes a multiplexing switch; the SOC chip is further provided with USB SSTX/RX differential terminals for inputting or outputting a USB3.0 signal and electrically connected to USB SSTX/RX differential terminals of the multiplexing switch to form a third channel; the USB Type-C interface is further provided with USB SSTX/RX differential terminals for inputting or outputting the USB3.0 signal and electrically connected to the USB SSTX/RX differential terminals of the multiplexing switch; and the C interface master control module is further provided with a control signal output pin configured to output a third control signal and electrically connected to a control signal input pin of the multiplexing switch; and the third control signal is configured to turn on the third channel and turn off a fourth channel.

In some embodiments, the SOC chip is further provided with an HDMI differential terminal for receiving or transmitting an HDMI signal. The HDMI differential terminal is electrically connected to an HDMI differential terminal of the multiplexing switch to form the selectable fourth channel; and the C interface master control module is further provided with a control signal output pin configured to output a fourth control signal and electrically connected to the other control signal input pin of the multiplexing switch; and the fourth control signal is configured to turn on the fourth channel and turn off the third channel.

In some embodiments, the television device further includes a protocol conversion module, where the protocol conversion module is configured to convert a DP signal into an HDMI signal when the DP signal is transmitted by the ALT MODE device, so that the HDMI signal is transmitted to an HDMI interface of the SOC chip; and the HDMI differential terminal of the SOC chip is electrically connected to an HDMI differential terminal of the protocol conversion module, and DP differential terminals of the protocol conversion module is electrically connected to DP differential terminals of the multiplexing switch. The DP differential terminals are configured for inputting or outputting the DP signal.

In some embodiments, the C interface master control module is further configured to input the third control signal to the control signal input pin of the multiplexing switch when identifying that the external device of the USB Type-C interface is the USB device and input the fourth control signal to the control signal input pin of the multiplexing switch when identifying that the external device of the USB Type-C interface is the ALT MODE device.

According to a fourth aspect, some embodiments of the present disclosure provide a television device with a USB Type-C interface, including the USB Type-C interface, a controller, a selective switch unit and an SoC chip; where the USB Type-C interface is provided with a CC pin and a USB D+/D− signal pin, and the USB Type-C interface is configured to be connected to an external device; the controller is electrically connected to the CC pin and is configured to determine a working mode of the external device according to a CC signal in the CC pin; and the controller is further connected to the selective switch unit and is configured to select the USB D+/D− signal pin to be connected to an interface for transmitting a USB D+/D− signal in the SoC chip or select the USB D+/D− signal pin to be connected to an interface for transmitting billboard information in the controller according to the working mode of the external device.

In some embodiments, the controller is configured to select the USB D+/D− signal pin to be connected to the interface for transmitting the USB D+/D− signal in the SoC chip when determining that the working mode of the external device is a USB mode so as to transmit the USB D+/D− signal to the SoC chip; and the controller is configured to transmit a second control signal to the selective switch unit when determining that the working mode of the external device is an Alt Mode, so that the selective switch unit selects the USB D+/D− signal pin to work to connect to the interface for transmitting the billboard information in the controller according to the second control signal and furthermore, the external device performs operation indicated by the billboard information.

In some embodiments, the television device further includes a multiplexing switch unit; the USB Type-C interface further includes TX1/RX1 and TX2/RX2 pins; the multiplexing switch unit is electrically connected to the TX1/RX1 and TX2/RX2 pins; the multiplexing switch unit is configured to be connected to the SoC chip to transmit a USB SSTX/SS RX signal or an audio/video signal to the SoC chip; and the controller is connected to the multiplexing switch unit and is configured to select the TX1/RX1 and TX2/RX2 pins to be connected to an interface for transmitting the USB SSTX/SS RX signal in the SoC chip or select the TX1/RX1 and TX2/RX2 pins to be connected to an interface for transmitting the audio/video signal in the SoC chip according to the working mode of the external device.

In some embodiments, the controller is configured to transmit a third control signal to the multiplexing switch unit when determining that the working mode of the external device is the USB mode, so that the multiplexing switch unit selects the TX1/RX1 and TX2/RX2 pins to be connected to the interface for transmitting the USB SSTX/SS RX signal in the SoC chip, and furthermore, the USB SSTX/SS RX signal is transmitted to the SoC chip; and the controller is configured to transmit a fourth control signal to the multiplexing switch unit when determining that the working mode of the external device is the Alt Mode, so that the multiplexing switch unit selects the TX1/RX1 and TX2/RX2 pins to be connected to the interface for transmitting the audio/video signal in the SoC chip, and furthermore, the audio/video signal is transmitted to the SoC chip.

In some embodiments, the interface for transmitting the audio/video signal in the SoC chip is an HDMI interface.

In some embodiments, the television device further includes a format conversion unit; where the input end of the format conversion unit is connected to the selective switch unit and is configured to perform format conversion on the audio/video signal transmitted by the selective switch unit to obtain a format-converted audio/video signal; and the output end of the format conversion unit is configured to be connected to the interface for transmitting the audio/video signal in the SoC chip to transmit the format-converted audio/video signal to the SoC chip.

In some embodiments, the working mode of the external device includes any one of USB2.0, USB3.0, USB3.1 and USB PD.

In some embodiments, the controller is further configured to set the CC signal on the CC pin as a power delivery instruction when determining that the working mode of the external device is the USB PD to make the television device deliver power to the external device.

According to a fifth aspect, some embodiments of the present disclosure provide a data communication method applied to a television device with a USB Type-C interface. The television device includes the USB Type-C interface, a controller, a selective switch unit and an SoC chip, where the USB Type-C interface is configured to be connected to an external device, the controller is respectively connected to the USB Type-C interface and the selective switch unit, and the selective switch unit is further connected to the SoC chip; and the method includes:

determining a working mode of the external device;

transmitting a USB D+/D− signal in the external device to the SoC chip according to the working mode of the external device; or

transmitting billboard information to the external device according to the working mode of the external device to make the external device perform the operation indicated by the billboard information.

In some embodiments, transmitting the USB D+/D− signal in the external device to the SoC chip according to the working mode of the external device includes: transmitting the USB D+/D− signal in the external device to the SoC chip when determining that the working mode of the external device is a USB mode; and transmitting the billboard information to the external device according to the working mode of the external device to make the external device perform the operation indicated by the billboard information includes: transmitting the billboard information to the external device when determining that the working mode of the external device is an Alt Mode to make the external device perform the operation indicated by the billboard information.

In some embodiments, the television device further includes a multiplexing switch unit, where the multiplexing switch unit is respectively connected to the USB Type-C interface, the controller and the SoC chip; and the method further includes: transmitting a USB SSTX/SS RX signal in the external device to the SoC chip according to the working mode of the external device; or transmitting an audio/video signal in the external device to the SoC chip according to the working mode of the external device.

In some embodiments, transmitting the USB SSTX/SS RX signal in the external device to the SoC chip according to the working mode of the external device includes: transmitting the USB SSTX/SS RX signal in the external device to the SoC chip when determining that the working mode of the external device is a USB mode; and transmitting the audio/video signal in the external device to the SoC chip according to the working mode of the external device includes: transmitting the audio/video signal in the external device to the SoC chip when determining that the working mode of the external device is an Alt Mode.

In some embodiments, the television device further includes a format conversion unit, where the format conversion unit is respectively connected to the selective switch unit and the SoC chip; and before the audio/video signal in the external device is transmitted to the SoC chip, the method further includes: performing format conversion on an audio/video signal transmitted by the selective switch unit to obtain a format-converted audio/video signal.

According to a sixth aspect, some embodiments of the present disclosure provide a control method for a USB-C interface of a television to be connected to an external device, including the following steps:

monitoring that the external device is plugged into the USB-C interface of the television;

if the external device is a USB disk, connecting a low-speed differential pair pin of the USB-C interface to a master chip of the television; and

if the external device is a computer, connecting the low-speed differential pair pin of the USB-C interface to a module of the television containing Billboard information.

In some embodiments, the low-speed differential pair pin of the USB-C interface is connected to a first terminal of one SWICH switch, second and third terminals of the SWICH switch are respectively connected to the master chip and the module containing Billboard information, and the SWICH switch may be controlled to connect the first terminal and the second terminal or connect the first terminal and the third terminal.

According to a seventh aspect, some embodiments of the present disclosure provide a television adopting the control method as shown in the sixth aspect.

According to an eighth aspect, the embodiment of the present invention provides a television including a master chip;

the master chip is connected to an SWICH switch;

the SWICH switch is respectively connected to a CC+PD chip and a module containing Billboard information;

the television further includes a USB-C interface for connecting with an external device; and

the USB-C interface is respectively connected to the CC+PD chip and the SWICH switch.

In some embodiments, the module containing the Billboard information is integrated in the CC+PD chip.

In some embodiments, the module containing the Billboard information is an independent hardware module.

In some embodiments, the SWICH switch is connected to the CC+PD chip via a control signal line and a data signal line; the data signal line is configured to transmit the Billboard information in a Billboard module built in the CC+PD chip to a USB-C interface via the SWICH switch; and the control signal line is configured to transmit an instruction indicating the SWICH switch to be connected to the master chip or to be connected to the CC+PD chip via the data signal line.

According to a ninth aspect, some embodiments of the present disclosure provide a control method for a USB-C interface of a television to be connected to an external device, including the following steps:

when a CC+PD chip of the television does not detect an external device plugged into the USB-C interface of the television, controlling an SWICH switch to connect a low-speed differential pair pin of the USB-C interface to an SOC chip master chip of the television;

when the CC+PD chip of the television detects that a USB disk is plugged into the USB-C interface of the television, not controlling the action of the SWICH switch; and

when the CC+PD chip of the television detects that a computer is plugged into the USB-C interface of the television, controlling the low-speed differential pair pin of the USB-C interface of the television to be connected to a module containing Billboard information of the television, and after Billboard information is transmitted to the computer, controlling, by the CC+PD chip, the action of the SWICH switch to connect the low-speed differential pair pin of the USB-C interface of the television to a path connected to the SOC chip master chip of the television.

According to a tenth aspect, some embodiments of the present disclosure provide a television adopting the control method as shown in the ninth aspect.

According to an eleventh aspect, some embodiments of the present disclosure provide an electronic television device for receiving data from an external device via a USB TYPE-C interface, including:

the USB TYPE-C interface provided with a USB D+/D− signal pin;

an SOC chip provided with a pin for inputting a USB D+/D− signal;

a control chip electrically connected to a CC pin in the USB TYPE-C interface and provided with a pin for inputting the USB D+/D− signal; and

a selective switch device, where a control pin of the selective switch device is electrically connected to a control signal output pin in the control chip; an input pin of the selective switch device is electrically connected to the USB D+/D− signal pin in the USB TYPE-C interface; in any two selectable output pins, one is electrically connected to the pin for inputting the USB D+/D− signal in the SOC chip; and the other one is electrically connected to the pin for connecting the USB D+/D− signal in the control chip.

In some embodiments, the electronic television device further includes: the SOC chip including a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; and a multiplexing switch chip provided with two high-speed differential pair signal input pins connected to USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control pin of the multiplexing switch chip is electrically connected to the other control signal output pin in the control chip, in two selectable output pins in the multiplexing switch chip, one is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other is electrically connected to the pin for inputting the HDMI format signal in the SOC chip.

In some embodiments, the electronic television device further includes that: a connecting terminal in the control chip electrically connected to the USB D+/D− signal pin, so that the control chip can transmit billboard information to the external device.

According to a twelfth aspect, some embodiments of the present disclosure provide an electronic television device for receiving data from an external device via a USB TYPE-C interface, including: a control chip configured to control electrical connection between a D+/D− signal input pin in the USB TYPE-C interface and an SOC chip and electrical connection between a D+/D− input terminal in the USB TYPE-C interface and the control chip for interacting billboard information according to a identified type of a device connected to the USB TYPE-C interface, and only one of the two electrical connection is only conducted at the same moment.

In some embodiments, the SOC chip is provided with a pin for inputting a USB D+/D− signal; the control chip is electrically connected to a CC pin in the USB TYPE-C interface and provided with a pin for inputting the USB D+/D− signal; and a selective switch device is provided, where a control pin of the selective switch device is electrically connected to a control signal output pin in the control chip; an input pin of the selective switch device is electrically connected to the USB D+/D− signal pin in the USB TYPE-C interface; in any two selectable output pins, one is electrically connected to the pin for inputting the USB D+/D− signal in the SOC chip; and the other one is electrically connected to the pin for inputting the USB D+/D− signal in the control chip.

In some embodiments, the SOC chip includes a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; a multiplexing switch chip is provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control pin of the multiplexing switch chip is electrically connected to the other control signal output pin in the control chip, in any two selectable output pins in the multiplexing switch chip, a selectable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other selectable output pin is electrically connected to the pin for inputting the HDMI format signal in the SOC chip.

According to a thirteenth aspect, some embodiments of the present disclosure provide an electronic television device for receiving data from an external device via a USB TYPE-C interface, including:

the USB TYPE-C interface provided with a USB D+/D− signal pin;

an SOC chip provided with a pin for inputting a USB D+/D− signal;

a CC module electrically connected to a CC pin in the USB TYPE-C interface;

a PD module provided with a pin for inputting the USB D+/D− signal; and

a selective switch device, where a control pin of the selective switch device is electrically connected to a control signal output pin in the CC module; an input pin of the selective switch device is electrically connected to the USB D+/D− signal pin in the USB TYPE-C interface; in two gateable output pins, one gateable output pin is electrically connected to the pin for inputting the USB D+/D− signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for connecting the USB D+/D− signal in the PD module.

In some embodiments, the SOC chip includes a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; a multiplexing switch chip is provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control pin of the multiplexing switch chip is electrically connected to the other control signal output pin in the CC module, in two gateable output pins in the multiplexing switch chip, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format signal in the SOC chip.

In some embodiments, the PD module is provided with a billboard function, a connecting terminal of the PD module is electrically connected to the USB D+/D− signal pin to allow the PD module feed billboard information back to the external device.

According to a fourteenth aspect, some embodiments of the present disclosure provide an electronic television device for receiving data from an external device via a USB TYPE-C interface, including:

the USB TYPE-C interface provided with a USB D+/D− signal pin;

an SOC chip provided with a pin for inputting a USB D+/D− signal; and

a control chip configured to detect a type of a device connected to the USB TYPE-C interface, when the USB TYPE-C interface is detected to be connected to a USB protocol type device, the connection between the USB D+/D− signal pin in the USB TYPE-C interface and the pin for inputting the USB D+/D− signal in the SOC chip is selected to be conducted; and when the USB TYPE-C interface is connected to an ALT MODE protocol type device, the connection between the USB D+/D− signal pin in the USB TYPE-C interface and a signal pin for interacting billboard information in the control chip is selected to be conducted.

In some embodiments, the SOC chip includes a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; a multiplexing switch chip is provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control pin of the multiplexing switch chip is electrically connected to the other control signal output pin in the control chip, in two gateable output pins in the multiplexing switch chip, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format signal in the SOC chip.

According to a fifteenth aspect, some embodiments of the present disclosure provide a television device including a display screen configured to display an image; a power delivery circuit configured to deliver power to a device and a signal input circuit configured to receive data from an external device, where the signal input circuit includes:

a USB TYPE-C interface provided with a USB D+/D− signal pin;

an SOC chip provided with a pin for inputting a USB D+/D− signal;

a control chip electrically connected to a CC pin in the USB TYPE-C interface and provided with a pin for inputting the USB D+/D− signal; and

a selective switch device, where a control pin of the selective switch device is electrically connected to a control signal output pin in the control chip; an input pin of the selective switch device is electrically connected to the USB D+/D− signal pin in the USB TYPE-C interface; in two gateable output pins, one gateable output pin is electrically connected to the pin for inputting the USB D+/D− signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for connecting the USB D+/D− signal in the control chip.

In some embodiments, the signal input circuit further includes: the SOC chip including a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; and a multiplexing switch chip provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control signal input pin of the multiplexing switch chip is electrically connected to the other control signal output pin in the control chip, in two gateable output pins in the multiplexing switch chip, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format in the SOC chip.

In some embodiments, the control chip is provided with a billboard function, and a connecting terminal in the control chip is electrically connected to a USB D+/D− signal pin point so that billboard information may be interacted between the control chip and the external device.

According to a sixteenth aspect, some embodiments of the present disclosure provide a television device including:

a display screen configured to display an image;

a power delivery circuit configured to deliver power to a device;

and a signal input circuit configured to receive data from an external device;

where the signal input circuit includes:

a USB TYPE-C interface provided with a USB D+/D− signal pin;

an SOC chip provided with a pin for inputting a USB D+/D− signal;

a control chip configured to detect a type of a device connected to the USB TYPE-C interface, when the USB TYPE-C interface is detected to be connected to a USB device, the connection between the USB D+/D− signal pin in the USB TYPE-C interface and the pin for inputting the USB D+/D− signal in the SOC chip is selected to be conducted; and when the USB TYPE-C interface is connected to an ALT MODE device, the connection between the USB D+/D− signal pin in the USB TYPE-C interface and a signal pin for interacting billboard information in the control chip is selected to be conducted.

In some embodiments, the SOC chip includes a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; a multiplexing switch chip is provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control pin of the multiplexing switch chip is electrically connected to the other control signal output pin in the control chip, in two gateable output pins in the multiplexing switch chip, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format in the SOC chip.

In some embodiments, an electronic television device further includes a DP-HDMI module, an HPD terminal of the DP-HDMI module is connected to a CC module so as to determine a communication state between the external device and the DP-HDMI module, the other HPD terminal is electrically connected to the input end of the DP-HDMI module, and the output end of the DP-HDMI module is electrically connected to the pin for inputting the HDMI format in the SOC chip.

According to a seventeenth aspect, some embodiments of the present disclosure provide a signal input circuit compatible for inputting data of a USB device and ALT MODE device and realizing interaction of billboard information, including:

a USB TYPE-C interface provided with a USB D+/D− signal pin;

an SOC chip provided with a pin for inputting a USB D+/D− signal;

a control chip electrically connected to a CC pin in the USB TYPE-C interface and provided with a pin for inputting the USB D+/D− signal; and

a selective switch device, where a control pin of the selective switch device is electrically connected to a control signal output pin in the control chip; an input pin of the selective switch device is electrically connected to the USB D+/D− signal pin in the USB TYPE-C interface; in two gateable output pins, one gateable output pin is electrically connected to the pin for inputting the USB D+/D− signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for connecting the USB D+/D− signal in the control chip.

In some embodiments, the signal input circuit further includes: the SOC chip including a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; and a multiplexing switch chip provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control pin of the multiplexing switch chip is electrically connected to the other control signal output pin in the control chip, in two gateable output pins in the multiplexing switch chip, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format in the SOC chip.

In some embodiments, the control chip is provided with a billboard function, and a connecting terminal in the control chip is electrically connected to the USB D+/D− signal pin to allow the control chip feed billboard information back to the external device.

According to an eighteenth aspect, some embodiments of the present disclosure provide a signal input circuit compatible for inputting data of a USB device and ALT MODE device and realizing interaction of billboard information, including:

a control chip configured to control electrical connection between a D+/D− input terminal in a USB TYPE-C interface and a connecting terminal of an SOC chip and electrical connection between the D+/D− input terminal in the USB TYPE-C interface and a connecting terminal for interacting billboard information in the control chip according to a identified type of a device connected to the USB TYPE-C interface, and one of two electrical connections is selected to be conducted at the same moment.

In some embodiments, the USB TYPE-C interface is provided with a USB D+/D− signal pin; the SOC chip is provided with a pin for inputting a USB D+/D− signal; the control chip is electrically connected to a CC pin in the USB TYPE-C interface and provided with a pin for inputting the USB D+/D− signal; and a selective switch device is provided, where a control pin of the selective switch device is electrically connected to a control signal output pin in the control chip; an input pin of the selective switch device is electrically connected to the USB D+/D− signal pin in the USB TYPE-C interface; in two gateable output pins, one gateable output pin is electrically connected to the pin for inputting the USB D+/D− signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the USB D+/D− signal in the control chip.

In some embodiments, the SOC chip includes a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; a multiplexing switch chip is provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control pin of the multiplexing switch chip is electrically connected to the other control signal output pin in the control chip, in two gateable output pins in the multiplexing switch chip, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format in the SOC chip.

According to a nineteenth aspect, some embodiments of the present disclosure provide a signal input method compatible for inputting data of an external USB device and ALT MODE device and realizing interaction of billboard information, including:

detecting a type of a signal connected to a USB TYPE-C interface, controlling electrical connection between a D+/D− input terminal in the USB TYPE-C interface and a connecting terminal of an SOC chip and electrical connection between the D+/D− input terminal in the USB TYPE-C interface and a connecting terminal for interacting billboard information in a control chip, and making one of the two electrical connections be conducted at the same moment.

In some embodiments, a multiplexing switch chip receives a control signal of the control chip, according to the control signal, in two gateable output pins, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format in the SOC chip.

In some embodiments, when a type of a USB protocol signal connected to the USB TYPE-C interface is identified, a connection between a USB D+/D− terminal in the USB TYPE-C interface and the connecting terminal of the SOC chip is selected to be conducted; when a type of an ALT MODE protocol signal connected to the USB TYPE-C interface is identified, a connection between the USB D+/D− terminal in the USB TYPE-C interface and the connecting terminal for interacting billboard information in the control chip is selected to be conducted.

In some embodiments, when the type of the ALT MODE protocol signal connected to the USB TYPE-C interface is identified, whether VDM information of the external device is matched with VDM information prestored in the control chip is judged, if the VDM information of the external device is not matched with the VDM information prestored in the control chip, the connection between the USB D+/D− terminal in the USB TYPE-C interface and the connecting terminal for interacting the billboard information in the control chip is selected to be conducted.

According to a twentieth aspect, some embodiments of the present disclosure provide a signal input method for inputting data of a USB and ALT MODE compatible external device and realizing interaction of billboard information, including:

detecting a type of a signal input to a USB TYPE-C interface;

when a type of a USB protocol signal input to the USB TYPE-C interface is identified, selecting a connection between a USB D+/D− terminal in the USB TYPE-C interface and a connecting terminal of an SOC chip to be conducted so that data is transmitted between a USB external device and the SOC chip via the USB D+/D− terminal; and when a type of an ALT MODE protocol signal input to the USB TYPE-C interface is identified, selecting a connection between the USB D+/D− terminal in the USB TYPE-C interface and the connecting terminal for interacting billboard information in a PD module to be conducted so that the billboard information is interacted between an ALT MODE external device and the PD module via the USB D+/D− terminal.

In some embodiments, when the type of the USB protocol signal connected to the USB TYPE-C interface is identified, a multiplexing switch chip selects the connection between one high-speed differential pair signal pin in the USB TYPE-C interface and a USB signal connecting terminal of an SOC chip to be conducted so that data is transmitted between the USB external device and the SOC chip via a USB SSTX/RX terminal; and when the type of the ALT MODE protocol signal connected to the USB TYPE-C interface is identified, a multiplexing switch chip selects the connection between at least one high-speed differential pair signal pin in the USB TYPE-C interface and an HDMI signal connecting terminal of the SOC chip to be conducted so that the ALT MODE external device and the SOC chip interact audio/video data via a terminal for transmitting an HDMI signal.

According to a twenty-first aspect, some embodiments of the present disclosure provide a signal input method compatible for inputting data of an external USB and ALT MODE device and realizing interaction of billboard information, including:

detecting a type of a signal input to a USB TYPE-C interface;

when a type of an ALT MODE protocol signal input to the USB TYPE-C interface is detected, selecting a connection between a USB D+/D− terminal in the USB TYPE-C interface and a connecting terminal for interacting billboard information in a control chip to be conducted so that the billboard information is interacted between an ALT MODE external device and the control chip via the USB D+/D− terminal;

otherwise, the connection between the USB D+/D− input terminal and a connecting terminal of an SOC chip is conducted as default state.

According to a twenty-second aspect, some embodiments of the present disclosure provide an electronic television device for receiving data from an external device via a USB TYPE-C interface, characterized by including:

the USB TYPE-C interface provided with a USB D+/D− signal pin; and

an SOC chip provided with a pin for inputting a USB D+/D− signal;

where the USB D+/D− signal pin in the USB TYPE-C interface is electrically connected to the pin for inputting the USB D+/D− signal in the SOC chip so that data is transmitted between a USB connected device and the SOC chip via a USB D+/D− channel.

In some embodiments, the SOC chip includes a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; and a multiplexing switch chip is provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control pin of the multiplexing switch chip is electrically connected to the other control signal output pin in a control chip, in any two gateable output pins in the multiplexing switch chip, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format in the SOC chip.

According to a twenty-third aspect, some embodiments of the present disclosure provide a television device including a display screen configured to display an image; a power delivery circuit configured to deliver power to a device and a signal input circuit configured to receive data from an external device, where the signal input circuit includes:

a USB TYPE-C interface provided with a USB D+/D− signal pin; and

an SOC chip provided with a pin for inputting a USB D+/D− signal;

where the USB D+/D− signal pin in the USB TYPE-C interface is electrically connected to the pin for inputting the USB D+/D− signal in the SOC chip so that data are transmitted between a USB connected device and the SOC chip via a USB D+/D− channel.

In some embodiments, the television device further includes: the SOC chip including a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; and a multiplexing switch chip provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control signal input pin of the multiplexing switch chip is electrically connected to the other control signal output pin in a control chip, in any two gateable output pins in the multiplexing switch chip, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format in the SOC chip.

According to a twenty-fourth aspect, some embodiments of the present disclosure provide a signal input circuit compatible for inputting data of an external USB and ALT MODE device, the signal input circuit includes:

a USB TYPE-C interface provided with a USB D+/D− signal pin; and

an SOC chip provided with a pin for inputting a USB D+/D− signal;

where the USB D+/D− signal pin in the USB TYPE-C interface is electrically connected to the pin for inputting the USB D+/D− signal in the SOC chip so that data are transmitted between a USB connected device and the SOC chip via a USB D+/D− channel.

In some embodiments, the SOC chip includes a pin for inputting a USB SSTX/RX signal and a pin for inputting an HDMI format signal; and a multiplexing switch chip is provided with two high-speed differential pair signal input pins connected to the USB TX1/2 and RX1/2 of the USB TYPE-C interface; where a control signal input pin of the multiplexing switch chip is electrically connected to the other control signal output pin in a control chip, in any two gateable output pins in the multiplexing switch chip, one gateable output pin is electrically connected to the pin for inputting the USB SSTX/RX signal in the SOC chip; and the other gateable output pin is electrically connected to the pin for inputting the HDMI format signal in the SOC chip.

According to a twenty-fifth aspect, some embodiments of the present disclosure provide a signal input method compatible for inputting data of an external USB and ALT MODE device, including:

detecting a type of a signal input to a USB TYPE-C interface;

when a type of a USB protocol signal input to the USB TYPE-C interface is identified, selecting, by a multiplexing switch chip, a connection between one high-speed differential pair signal pin in the USB TYPE-C interface and a USB signal connecting terminal of an SOC chip to be conducted so that data is transmitted between a USB external device and the SOC chip via a USB SSTX/RX terminal; and when a type of an ALT MODE protocol signal input to the USB TYPE-C interface is identified, selecting, by the multiplexing switch chip, a connection between at least one high-speed differential pair signal pin in the USB TYPE-C interface and an HDMI signal connecting terminal of the SOC chip to be conducted so that an ALT MODE external device and the SOC chip interact audio/video data via a terminal for transmitting an HDMI signal.

According to a twenty-sixth aspect, some embodiments of the present disclosure provide a television with a USB TYPE-C interface, including:

the USB TYPE-C interface configured for connecting to an external device;

an SOC chip provided with the USB DFP interface and configured to implement a USB2.0/3.0 DFP function;

a microprocessor chip connected to the SOC chip and the USB TYPE-C interface, for supporting a USB Type-C CC communication and PD protocol, provided with a billboard UFP interface and configured to output a billboard signal outwards under an ALT MODE condition; and

a switch device controlled by the microprocessor chip and configured to make a USB D+/D− terminal of the USB TYPE-C interface connect with a USB DFP interface of the SOC chip or the billboard UFP interface of the microprocessor chip.

In some embodiments, the microprocessor chip detects a type of an connected device, and when a USB protocol device is connected, the switch device is in a default state, so that the USB D+/D− terminal of the USB Type-C interface communicates with the USB DFP interface of the SOC chip; and when an ALT MODE device is connected, the switch device is controlled by the microprocessor chip, so that the USB D+/D− terminal of the USB Type-C interface is switched to connect with the billboard UFP interface of the microprocessor chip.

In some embodiments, the television further includes a multiplexing switch chip, when the USB protocol device is connected, the microprocessor chip controls the multiplexing switch chip to be switched, so that TX1/RX1 and TX2/RX2 terminals of the USB Type-C interface connect with the USB DFP interface of the SOC chip.

In some embodiments, the SOC chip further includes an HDMI SINK interface; and the television further includes the multiplexing switch chip and a DP-HDMI module connected between the multiplexing switch chip and the HDMI SINK interface, and the DP-HDMI module is configured to convert a DP signal into an HDMI signal to be displayed by the SOC chip.

In some embodiments, the USB Type-C interface is initially set to be in a double-role USB mode and performs role change when being connected to devices playing different roles to match the device.

In some embodiments, the USB Type-C interface is adapted to be a USB UFP device when being connected to a USB DFP device; and if the connected device supports a DP DFP mode, the device is switched to be in a DO DFP mode to transmit the DP signal.

In some embodiments, the USB Type-C interface is adapted to be the USB DFP device when being connected to the USB UFP device.

In some embodiments, the USB Type-C interface negotiates with the external device and is adapted to be a DP UFP device when being connected to a double-role USB device supporting an ALT MODE.

In some embodiments, the television is used as a POWER SOURCE to deliver power to the outside.

In the above-mentioned embodiments, based on circuit connection relationships among the switch module, the USB Type-C interface master control module and the SOC chip in the television device, switching between gateable links for the USB2.0 signal and the billboard signal is realized, and the compatibility between the USB2.0 signal transmission function and the billboard signal transmission function may be realized. When the USB device is externally connected to the USB Type-C interface, a link between the USB device and the SOC chip is turned on by the USB Type-C interface master control module, so that the transmission function of the USB2.0 signal is realized. When the ALT MODE device is externally connected to the USB Type-C interface, a link between the billboard signal output interface and the ALT MODE device is turned on by the USB Type-C interface master control module220, and thus the Billboard function is realized.

Further aspects and areas of applicability will become apparent from the description provided herein. It should be understood that various aspects of this disclosure may be implemented individually or in combination with one or more other aspects. It should also be understood that the description and specific examples herein are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

