Remote control circuit

Details Remote control circuit Remote control circuit

1986-05-29

1988-08-16

Masinick, Michael A.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455607, H04B 900

Patent

active

047649810

ABSTRACT:
A remote control device comprises a control input unit, a transmission unit, a receiving unit, a reply unit and a command control circuit. The control input unit outputs a control signal. The transmission unit stores the control signal in a first memory circuit and transmits a light signal based on the control signal. A main device controlled by the remote control unit receives in a first receiver circuit and stores in a second memory circuit the signal from the transmission unit. The main device has a reply signal unit for transmitting a return signal based on the signal from the receiving unit to a second receiver circuit of the remote control device. The command control circuit compares the signal received by the second receiver circuit and the signal stored in the first memory circuit. When these compared signals are in agreement, the command control circuit outputs to the transmission unit a signal based on the signal stored in the second memory circuit thereby to cause the operating device to operate. When they are not in agreement, then the circuit outputs a signal to a display unit for an error display.

REFERENCES:
patent: 3453592 (1969-07-01), Ishii et al.
patent: 4322855 (1982-03-01), Mogi et al.
patent: 4395780 (1983-07-01), Gohm et al.
patent: 4526010 (1985-07-01), Sato et al.
Miyamoto et al--Radio Terminal Device--NEC Res. & Develop. (Japan), No. 50, Jul. 1978, pp. 62-78.

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