Digital television receiver with memory refreshing circuitry

Details Digital television receiver with memory refreshing circuitry Digital television receiver with memory refreshing circuitry

1985-10-04

1988-02-23

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

3581911, 455186, H04N 544

Patent

active

047274263

ABSTRACT:
Method and apparatus for use with a television receiver wherein a television signal is processed in a digital form and which includes a memory for storing data to control such processing, in which a circuit is provided for refreshing the data in the memory at successive vertical blanking periods and a circuit is also provided for writing input data into the memory at the appropriate location at any time new data is desired to be input by the user. An operating method is also provided to accomplish the functional tasks of the refreshing circuit and interrupt circuit.

REFERENCES:
patent: 4220967 (1980-09-01), Ichida
patent: 4310924 (1982-01-01), Miyasaka
patent: 4545068 (1985-10-01), Tabata

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