Title:
【発明の名称】フイールドメモリ装置
Document Type and Number:
Japanese Patent JP2645860
Kind Code:
B2
Abstract:
A field memory device includes: a terminal 1 for supplying a color TV signal of the PAL system, an A/D converter 3 for A/D conversion of the color TV signal, a memory 5 for storing the color TV signal obtained by the A/D conversion for substantially one field, a D/A converter 4 for D/A conversion of the color TV signal read from the memory, to output a signal obtained by the D/A conversion, and a circuit 10 for controlling writing and reading into and from the memory. The control circuit 10 defines a period 2nH's obtained by multiplication of a horizontal period H by a number 2n (n being a positive integer) approximate to the number of scanning lines for one field of the color TV signal, so that reading operation of the memory is reset based on the period thus defined.
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Inventors:
IDE KOICHI
SUNAKAWA OSAMI
SUNAKAWA OSAMI
Application Number:
JP16741088A
Publication Date:
August 25, 1997
Filing Date:
July 05, 1988
Export Citation:
Assignee:
SANYO DENKI KK
International Classes:
H04N9/87; H04N5/907; H04N9/877; (IPC1-7): H04N9/87
Domestic Patent References:
JP1228391A | ||||
JP1138880A | ||||
JP5750117B2 |
Attorney, Agent or Firm:
Koji Yasutomi (1 person outside)