Microcomputer processing approach for a non-volatile TV station

Details Microcomputer processing approach for a non-volatile TV station Microcomputer processing approach for a non-volatile TV station

1977-03-17

1978-06-06

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

325464, 325468, 358191, H04B 126

Patent

active

040939227

ABSTRACT:
A television tuning system having a non-volatile memory for storing digital tune words is electrically updated by a microcomputer type architecture control circuitry. A ROM memory matrix is provided for the storage of VHF minimum and maximum binary tune words corresponding to each of twelve VHF channels in addition to a UHF minimum and maximum binary tune word encompassing all possible 72 UHF channels. Tuning of individual VHf and UHF channels is accomplished by incrementing or decrementing a given tune word within the minimum and maximum limits established in the ROM memory matrix by means of a microcomputer processing approach.

REFERENCES:
patent: 3845394 (1974-10-01), Hamada
patent: 3962644 (1976-06-01), Baker
patent: 3968440 (1976-07-01), Ehni
patent: 3979680 (1976-09-01), Sakamoto
patent: 3983492 (1976-09-01), Fisher
patent: 4058772 (1977-11-01), Mogi

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