Video signal memories

Details Video signal memories Video signal memories

1985-09-17

1989-03-07

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, H04N 514

Patent

active

048110990

ABSTRACT:
A video signal memory which may form a field memory in a special effects equipment of a high definition video system, provides storage of n.sup.2 m video data words and includes an array of n by n memory modules each capable of storing m video data words corresponding respectively to sample values at respective sample positions of a raster display, a first group of n buses for supplying data and address signals to the n columns respectively of the array, a second group of n buses for supplying data and address signals to the n rows respectively of the array, and means selectively to enable the first or second group of buses in each write cycle of the video signal memory and in the write cycle to supply over the enabled group of buses up to n data and address signals wherein the address designates the address in a memory module in the corresponding column or row of the array and the data is the data to be stored in the memory module.

REFERENCES:
patent: 3996559 (1976-12-01), Morrin et al.
patent: 4183058 (1980-01-01), Taylor
patent: 4437121 (1984-03-01), Taylor et al.

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