Circuit for storing an image signal in an image memory and for r

Details Circuit for storing an image signal in an image memory and for r Circuit for storing an image signal in an image memory and for r

1984-12-28

1988-04-19

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358140, 382 47, H04N 514

Patent

active

047394056

ABSTRACT:
Predetermined ones of picture elements read from a frame memory at a first clock rate, are stored in an image memory and are read therefrom at a second clock rate for display on a display unit with the first and the second clock rates selected independently of each other. Preferably, a serial signal of the predetermined elements is converted for storage in the image memory into a parallel signal of a predetermined number of bits. The predetermined elements stored in the image memory, are read therefrom as a parallel signal of the predetermined number of bits, the read-out parallel signal being converted to a serial signal for the display.

REFERENCES:
patent: 3617626 (1971-11-01), Bluth et al.
patent: 4153896 (1979-05-01), White
patent: 4275450 (1981-06-01), Potter
patent: 4302776 (1981-11-01), Taylor et al.
patent: 4476493 (1984-10-01), Poetsch et al.
patent: 4496974 (1985-01-01), Heitmann
patent: 4561024 (1985-12-01), Tamura
patent: 4675908 (1987-06-01), Saito et al.

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