US-6,144,862 Pulse-shaping look-up table with transient suppression
The pulse-shaping look-up table with transient suppression (530) avoids hard turn-on and turn-off transients by modifying word segments of initial and final...
US-6,144,846 Frequency translation circuit and method of translating
A frequency translation circuit (10) translates an incoming reference signal (RF.sub.IN) to a lower frequency using a compound mixer circuit (42). The compound...
US-6,144,845 Method and circuit for image rejection
An image rejection circuit (10) receives an incoming signal (RF.sub.IN) and an oscillator signal (V.sub.OSC) generated by a local oscillator (26). Output signals...
US-6,144,739 Computer network protection using cryptographic sealing software agents and objects
A method and apparatus for protecting software objects from external modification is described. A cryptographic seal protects the object at the object level and...
US-6,144,704 Phase domain multiplexed communications system
A phase domain multiplexed communication system generates N carrier frequencies each with a unique phase according to a selected orthogonal vector containing N...
US-6,144,673 Method and apparatus for providing broadcast group data
A method and apparatus for providing broadcast group data within a communication system begins when a subscriber unit (28-32, 38-42) provides a data service...
US-6,144,654 Method of combining and separating groups of multiple CDMA-encoded data signals and apparatus therefor
A method and apparatus for combining and separating groups of signals starts by a transmitter (500) receiving a number of CDMA-encoded signals from data sources...
US-6,144,651 Data transmission within a wireless communication system
In order to reduce messaging within a wireless communication system an emulator (137) is provided that receives multicast packet data from a router (138). The...
US-6,144,649 Method and apparatus for acquiring a pilot signal in a CDMA receiver
A searcher receiver (114) includes a sample buffer (202) which stores signal samples loaded using a real time clock. A real time linear sequence generator (RT...
US-6,144,646 Method and apparatus for allocating channel element resources in communication systems
A communication system (200) includes a plurality of channel elements (201-05). A mobile station (101) communicates with a base station (114), both included in...
US-6,144,611 Method for clearing memory contents and memory array capable of performing the same
The present invention provides a means for clearing or wiping the contents of a RAM array without the need for overly large transistors and without experiencing...
US-6,144,569 System and method for recovering from a power supply interruption
A power cut detection and recovery system (36) provides for the recovery of an electronic apparatus (20) in response to a momentary interruption in the voltage...
US-6,144,276 Planar transformer having integrated cooling features
A planar electromagnetic device, such as a planar transformer or planar inductor, is provided with features for cooling that are formed integrally with the...
US-6,144,186 Low power enable circuit
This invention is a system and method for causing a rechargeable battery pack to enter a low power mode. The system includes a resistive divider, a switch, a...
US-6,144,157 Organic EL device with fluorocarbon liquid and UV epoxy layers and method
Electroluminescent apparatus comprising an organic electroluminescent device having an active organic region, an inert fluorocarbon liquid layer covering...
US-6,143,648 Method for forming an integrated circuit
A method for forming void free tungsten plug contacts (56a-56c) begins by etching a contact opening (55a-55c) using a C.sub.2 F.sub.6 and CHF.sub.3 chemistry....
US-6,143,646 Dual in-laid integrated circuit structure with selectively positioned low-K dielectric isolation and method of...
A method for forming a dual inlaid contact structure (damascene) begins by etching dual inlaid contact structures (32, 34, and 36). Masking layers (28) are (228)...
US-6,142,021 Selectable pressure sensor
A sensor (10) includes a plurality of sensing elements (14-20) deposed on a sensor substrate (12) and an electronic switching circuit (22) electrically connected...
US-6,141,757 Secure computer with bus monitoring system and methods
A secure computer system (100) includes a host processor (105) for communicating a datum to a trusted bus (101). A bridge (125) connects the trusted bus (101) to...
US-6,141,756 Apparatus and method of reading a program into a processor
The following describes an apparatus for and method of providing a secure method of downloading a program into a processor (101) from a device (103) external to...
US-6,141,638 Method and apparatus for coding an information signal
A speech coder (400) for coding an information signal varies the codebook configuration based on parameters inherent in the information signal. The speech coder...
US-6,141,569 Portable electronic device and method of coupling power thereto
A novel portable electronic device including a first housing portion (106) having a first battery (135) integrally associated with the first housing portion and...
US-6,141,564 Method of sharing a SIM card between two masters
Method and apparatus for sharing a SIM card between two masters. The invention may be embodied in so-called multi-mode radiotelephones that use SIM cards to...
US-6,141,563 SIM card secured subscriber unit
A subscriber unit (101) includes a SIM card reader (107) for receiving a SIM card (105). The subscriber unit (101) is serialized and has stored therein an...
US-6,141,560 Communication device providing dual mode operation
A cellular cordless telephone (10) operates with both a cordless base station (180) and a cellular base station (190) and cellular control terminal (196). In one...
US-6,141,559 Method and apparatus for performing selection and distribution in a communication system
A communication system (100) that includes base stations (103-109) comprising selection circuitry (207) is provided herein. The determination of a call anchoring...
US-6,141,558 Method and apparatus for locating a subscriber unit in a communication system
After determining a distressed mobile subscriber communication unit 100 is within a communication coverage area (60) of a base transceiver station (BTS) (22), a...
US-6,141,548 Method and apparatus for location based intercept in a communications system
A method and apparatus for providing location-based intercept in a system includes an intercept monitoring unit (210) for dynamically modifying an intercept...
US-6,141,546 Mobile telephone systems
In a mobile cellular communication system, adjacent basestations BS1-BS4 are assigned different selections of different frequency channels to communicate with...
US-6,141,543 Method and apparatus for simulcast space diversity transmission of a message in a radio messaging system
At least two subsets (204, 208) of simulcast transmitters are defined (802) that produce differing simulcast distortion characteristics at a receiver (210), and...
US-6,141,542 Method and apparatus for controlling transmit diversity in a communication system
Different orthogonal codes (W.sub.x, W.sub.y) are used to spread common pilot channels (Pilot.sub.A) intended for transmission to a particular mobile station...
US-6,141,541 Method, device, phone and base station for providing envelope-following for variable envelope radio frequency...
A method (200) and device (100) provide an efficient linear power amplifier that generates a variable-envelope radio frequency RF signal. The method includes the...
US-6,141,540 Dual mode communication device
A communication device (100) operates in first and second modes of operation including a dispatch mode of operation and a telephone mode of operation. The device...
US-6,141,535 Communication systems for controlling registration of selective call devices
A method in a communication system (100) having at least a first and a second base stations (104, 108) for communicating with selective call devices (102)...
US-6,141,533 Method and apparatus for a mobile repeater
A mobile repeater (300) is improved to include a database (303) that allows the mobile repeater to store registrations received from subscriber units. ...
US-6,141,454 Methods for data compression and decompression using digitized topology data
A digitized topology data compression and decompression method provides the digitized topology data of a collection of segments connected to each other via...
US-6,141,453 Method, device and digital camera for error control and region of interest localization of a wavelet based...
The present invention provides a method (200, 400, 500, 600), device (300, 400, 500, 600, 700) and digital camera (800) for error control of a wavelet-based...
US-6,141,436 Portable communication device having a fingerprint identification system
A portable communication device (100, 300, 400, 500) comprises a fingerprint identification system (709) including a scanner (115) for scanning a fingerprint...
US-6,141,393 Method and device for channel estimation, equalization, and interference suppression
A method and device in a communication system including a receiver having a plurality of receiving antennas for receiving a plurality of information bursts...
US-6,141,387 Digital QAM modulator using post filtering carrier recombination
The efficient quadrature amplitude modulator of the present invention allows from 6 to 8 independent compressed channels to occupy a 6 MHz bandwidth while...
US-6,141,347 Wireless communication system incorporating multicast addressing and method for use
A wireless communication system 200 comprises a connectionless packet network 201 coupled to a plurality of sites 203-208 that are in wireless communication with...
US-6,141,341 Voice over internet protocol telephone system and method
An Internet Protocol telephone system and method uses a telephone (26) to place and receive voice over Internet Protocol (VoIP)-based telephone calls and public...
US-6,141,331 Selective call receiver with automatic re-registration capability
An SCR (Selective Call Receiver) (16) that operates in a satellite communication system automatically initiates a re-registration procedure when it roams from...
US-6,141,200 Stacked PFET off-chip driver with a latch bias generator for overvoltage protection
Series-connected stacked PFETS are employed in an off-chip driver output stage. When the output driver is enabled, the gate of the PFET transistor directly...
US-6,140,976 Method and apparatus for mitigating array antenna performance degradation caused by element failure
An array antenna (10) having a plurality of antenna elements (12) keeps only a subset of elements active during normal antenna operation. When a failure of one...
US-6,140,854 System with DLL
A system (50) has a shifting delay circuit (60) which provides a variable delay for delaying a source clock and a delay locked loop (DLL) (70) which includes a...
US-6,140,807 Electronic device and associated method for charging an energy storage circuit with a DC-DC converter
An electronic device includes an electrical circuitry interface (112) adapted for coupling with an energy source (106), a comparator (138), and a DC-DC converter...
US-6,140,764 Organic electroluminescent apparatus with mircrocavity
Organic electroluminescent apparatus including an organic electroluminescent device (11) for emitting blue to blue-green light. A microcavity structure (12)...
US-6,140,703 Semiconductor metallization structure
A high temperature metallization system for use with a semiconductor device (23). The semiconductor device (23) has a multi-layer metallization system (36). An...
US-6,140,576 Protective shield tent and method of using same
Protective shield tent (100, 300, 400) provides a portable and repeatable method for protecting assemblies during various stages of a manufacturing process....