发明名称 |
Video signal compression apparatus for horizontal compression of a video signal |
摘要 |
A video signal compression apparatus extracts a specific value written in a read only memory at every system clock pulse. The specific value can be varied at every clock pulse. Therefore, for example, only the center part of a picture can be horizontally compressed. A FIFO memory may be used. It is possible to select a mode with a fixed compression ratio or a mode in which a compression ratio varies at every clock pulse. Further, the fixed compression ratio can be set from the outside. Display position of the picture can also be changed.
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申请公布号 |
US5666165(A) |
申请公布日期 |
1997.09.09 |
申请号 |
US19940361634 |
申请日期 |
1994.12.22 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
IZAWA, YOSUKE;TANI, MASAHIRO;OKUMURA, NAOJI;NIO, YUTAKA;SATO, TOSHIOHIKA |
分类号 |
H04N5/14;H04N5/44;(IPC1-7):H04N7/01;H04N5/262 |
主分类号 |
H04N5/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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