Television – Format conversion – Conversion between standards with different aspect ratios
Patent
1996-10-02
1997-12-30
Lee, Michael H.
Television
Format conversion
Conversion between standards with different aspect ratios
348913, H04N 701
Patent
active
057036535
ABSTRACT:
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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Izawa Yosuke
Nio Yutaka
Okumura Maoji
Sato Toshichika
Tani Masahiro
Lee Michael H.
Matsushita Electric - Industrial Co., Ltd.
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