Intra-oral control unit and system

Details Intra-oral control unit and system Intra-oral control unit and system

1983-08-26

1986-08-12

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

340407, 340539, 455100, H04Q 900, H04B 1034, G08B 2100

Patent

active

046059270

ABSTRACT:
A system for quadriplegics and for others having less than full use of their limbs for controlling the environment is disclosed. The system includes an intra-oral lingually operated switch located on a dental appliance. The switch activates an intra-oral power supply and intra-oral FM transmitter which directs control signals from the inside of the oral cavity to an external FM receiver. A controller responsive to the receiver generates output signals for operating call devices, and for controlling various appliances such as televisions, lights, bed position, etc. In one embodiment, a delay circuit is interposed between the intra-oral switch and the power supply such that inadvertent closure of the switch with the tongue does not cause undue power drain. An improved FM transmitter circuit is also disclosed which has low power drain, has low mass and temperature sensitivity and is not directional.

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