System of switching video of two different standards

Details System of switching video of two different standards System of switching video of two different standards

1997-10-15

1999-05-18

Peng, John K.

Television

Basic receiver with additional function

Multimode

348705, 348558, 348584, 348553, H04N5/46

Patent

active

059055383

ABSTRACT:
A system for switching video of two different standards that uses a single crosspoint matrix and a single local controller coupled to two memory blocks for storage of crosspoint selection data. The crosspoint selection data is written to the crosspoint matrix according to the video reference signals that correspond to the crosspoint selection data to be written. Switching of the crosspoints then occurs according to the video reference signal corresponding to the crosspoints to be switched.

REFERENCES:
patent: 4743970 (1988-05-01), Barnett
patent: 5420856 (1995-05-01), Kerns
patent: 5515110 (1996-05-01), Alig
patent: 5751374 (1998-05-01), Ninomya

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