Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1994-11-10
1996-09-10
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359142, 359148, 378115, H04B 1010
Patent
active
055551203
ABSTRACT:
A cordless control system for actuating selected functions of a mobile X-ray unit. This cordless control system comprises a transmitter and a receiver. The portable transmitter is hand held and includes a first control switch, a second control switch, and an infrared emitting circuit. The infrared emitting circuit includes a plurality programmable encoding switches. Each of the programmable encoding switches are user switchable for emitting at least one binary coded infrared signal. The receiver includes a plurality of infrared sensors and a receiving circuit. The receiving circuit includes a plurality of programmable decoding switches. Each of the infrared sensors is arrayed for receiving each binary coded signal being sent by the transmitter. The receiving circuit in cooperation with the decoding switches providing actuation of the selected functions only when the plurality of encoding switches and the decoding switches are programmed exactly alike and only when either of the first control switch or the second control switch is manually actuated. The transmitter also includes a distinguishing means to provide sensory indication to the user of an intermediate position of the first control switch.
REFERENCES:
patent: 4074234 (1978-02-01), Fox
patent: 4170735 (1979-10-01), Codina
patent: 4225787 (1980-09-01), Shapiro
patent: 4355276 (1982-10-01), Vittay
patent: 4544923 (1985-10-01), Blatter
patent: 4641374 (1987-02-01), Oyama
patent: 5081543 (1992-01-01), Romandi
patent: 5191324 (1993-03-01), Rydel
patent: 5206894 (1993-04-01), Makrinos
Trepak, "IR Remote Conrol", Practical Electronics, vol. 18 #2 pp. 32-34, Feb. 1982.
Telymonde Andrew
Telymonde Timothy D.
Pascal Leslie
Pinto Patrick J.
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