Remote control signal transmitter capable of setting custom code

Details Remote control signal transmitter capable of setting custom code Remote control signal transmitter capable of setting custom code

1981-02-17

1983-10-25

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

340365S, 34082583, H04Q 900

Patent

active

044122187

ABSTRACT:
A remote control signal transmitter generates a scan signal. A plurality of scan signal output terminals convey the scan signals to a key matrix circuit having a plurality of column lines and a plurality of row lines connected to the respective scan signal output terminals. Key input terminals are connected to the respective column lines. A custom code selection terminal is selectively connected to the scan signal output terminals in accordance with a custom code corresponding to an instrument to be controlled. The transmitter makes use of scan signals to provide the custom code of the instrument to be controlled. Therefore, only the instrument having this custom code can be activated by the transmitter, and the operating condition of the activated instrument is controlled by the subsequently transmitted key data.

REFERENCES:
patent: 3789364 (1974-01-01), Moses
patent: 4037201 (1977-07-01), Willmott
patent: 4208630 (1980-06-01), Martinez
patent: 4231019 (1980-10-01), Junginger et al.
patent: 4264896 (1981-04-01), Sakarya et al.

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