as required , detailed embodiments of the present invention are disclosed herein . however , it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms . the figures are not necessarily to scale ; some features may be exaggerated or minimized to show details of particular components . therefore , specific structural and functional details disclosed herein are not to be interpreted as limiting , but merely as a representative basis for the claims and / or as a representative basis for teaching one skilled in the art to variously employ the present invention . moreover , except where otherwise expressly indicated , all numerical quantities in this description and in the claims are to be understood as modified by the word “ about ” in describing the broader scope of this invention . practice within the numerical limits stated is generally preferred . also , unless expressly stated to the contrary , the description of a group or class of materials as suitable or preferred for a given purpose in connection with the invention implies that mixtures or combinations of any two or more members of the group or class may be equally suitable or preferred . referring to the figures , an interactive robotic apparatus of the present invention is generally indicated by reference numeral 20 . the interactive robotic apparatus 20 generally includes a head assembly 22 , a body assembly 24 , left 26 and right 28 front legs , left 27 and right 29 back legs , and a plush covering 30 such as fur . the head assembly 22 includes a face plate 32 with eye sockets 34 and 36 , a nose 38 and mouth 40 . the eye sockets 34 and 36 receive eyes 42 and 44 , respectively , which are covered by lenses 46 and 48 , respectively , and held in place with retaining rings 50 and 52 , respectively . each eye 42 and 44 includes eyelids 54 and 56 , respectively . a microphone 55 is mounted to the face 32 to pick - up sounds and voice signals to interactively respond . a photo transistor 57 is also mounted to the nose 38 to detect movement . an eye actuating mechanism 58 includes left 60 and right 62 eyelid actuators , each mounted to an eye carriage 64 and 66 , respectively . each eyelid actuator 60 and 62 includes a rubber cylinder 68 and 70 , which impinges upon the back of the eyelids 54 and 56 , to actuate the eyelids . as the eyelid actuators rotate in one direction or the other , the rubber cylinders 68 and 70 cause the eyelids 54 and 56 to rotate about an axis of rotation of the eyes 42 and 44 . the eye actuating mechanism 58 also includes an eye actuator 72 , which drives an eye movement gear 74 coupled to the left eye carriage 64 . the left eye carriage 64 is pivotably coupled to the right eye carriage 66 via arcuate gears 76 and 78 , respectively . rotation of the eye actuator 72 in a first direction then in the opposite direction causes the eyes 42 and 44 to move back and forth . the eye actuating mechanism 58 as well as the face 32 is fastened to a face plate 80 . an rfid sensor 81 is secured to the face plate 80 in the area near the mouth 40 . an ear actuating mechanism 82 is also fastened to the face plate 80 and includes left 84 and right 86 ears , and a servo actuator 88 coupled to the left 84 and right 86 ears to move the ears up and down or back and forth , for example . a nose actuating mechanism 90 includes a nose servo actuator 92 coupled to a rod 94 , which extends through articulated nose disks 96 and is capped by the nose 38 . activation of the nose servo actuator 92 moves the nose 38 up and down or side to side , for example . the back of the head plate 98 is coupled to the face plate 80 to enclose the components of the head assembly 22 . the body assembly 24 includes a neck actuating mechanism 100 , which includes a head rotation servo actuator 102 to rotate the head assembly 22 to the left and right , and a head nod actuator 104 to move the head 22 up and down . the head assembly 22 is pivotally attached to the body assembly 24 at a neck 106 . the body assembly 24 includes a belly actuating mechanism 110 , which includes a belly actuator 112 coupled to a lobed cam 114 rotated by the belly actuator 112 . the lobed cam 114 impinges upon a breast plate 116 , which is hingedly secured to a front body plate 118 . as the lobed cam 114 is rotated by the belly actuator 112 , the breast plate 116 moves in and out simulating a breathing motion . a battery pack 120 is mounted in the body 24 to power the actuators and control circuit 150 , discussed herein below . a speaker 122 is mounted to the front body plate 118 behind a speaker grill 124 . a heartbeat simulator 126 is mounted within the body assembly 24 to simulate a heartbeat . the front body plate 118 is fastened to a back body plate 128 enclosing the body 24 . referring to fig1 , a control circuit is generally indicated by reference numeral 150 . the control circuit includes a microprocessor control unit (“ mcu ”) 152 and an internal memory 154 . the mcu 152 receives power from the battery pack 120 and inputs from the microphone 55 , and photo transistor 57 , as well as one or more capacitive touch sensors 156 mounted to the external surfaces of the interactive robotic apparatus 20 below the covering 30 . the mcu 152 also receives input from the rfid coil 81 , as well as a g / position sensor 158 . the mcu 152 controls the rotation of the eyes 42 and 44 and blinking of the eyelids 54 and 56 . in response to sounds received via microphone 55 and inputs from touch sensors 156 , the mcu 152 may actuate the nose actuator 92 to move the nose 38 up and down , and actuate the ears actuator 88 to move the ears 84 and 86 . the mcu 152 also controls rotation of the head assembly 22 and associated servo actuators . the mcu 152 sends a signal to the heartbeat actuator 126 and breathing actuator 112 to simulate a heartbeat and breathing , respectively . operationally , the mcu 152 produces various moods such as happy , unhappy , and sleepy , for example . a happy expression may include moving the head 22 and nose 38 up , while blinking the eyes 42 and 44 by actuating the eyelids 54 and 56 , and outputting a happy sound via speaker 122 . when unhappy , the mcu 152 may move the head 22 down , and outputting an unhappy sound , for example . a sleepy expression may include moving the head 22 down , closing the eyes 42 and 44 by actuating the eyelids 54 and 56 , and outputting a snoring sound via the speaker 122 . when touched or petted , detected by the mcu 152 via input from the touch sensors 156 , the mcu 152 may output a happy expression . if a food accessory such as a dog bone or treat containing an rfid is placed near the mouth 40 , the rfid coil 81 will sense the presence of the food accessory , which will be detected by the mcu 152 . the mcu 152 may generate a happy response such as moving the head 22 and nose 38 up , while blinking the eyes 42 and 44 by actuating the eyelids 54 and 56 , and outputting a happy sound via speaker 122 , for example . other rfid accessories may be used to elicit other responses . if the g / position sensor 158 or contact switches 156 detect a sudden movement such as a strike or drop , the mcu 152 may move the head 22 down and output an unhappy sound via speaker 122 . if the g / position sensor 158 detects that the apparatus 20 is being held upside - down , the mcu 152 may move the head 22 side to side quickly and output an angry or unhappy sound via speaker 122 , for example . it is to be understood that while certain forms of this invention have been illustrated and described , it is not limited thereto , except in so far as such limitations are included in the following claims and allowable equivalents thereof .
an interactive robotic apparatus that interacts with a user , especially an elderly individual to provide companionship and comfort . the interactive apparatus receives inputs from the user and reacts and interacts . the interactive robotic apparatus includes microphones and a phototransistor to detect sounds and movement . the interactive robotic apparatus also includes a speaker to generate sounds responsive to the interaction with the user and exhibits a breathing animation and heartbeat .