Switching reference generation using a scanning sync separator

Details Switching reference generation using a scanning sync separator Switching reference generation using a scanning sync separator

1997-09-05

2000-10-10

Flynn, Nathan

Television

Image signal processing circuitry specific to television

Switching

348706, 348584, 348585, H04N 5268, H04N 974, H04N 711, H04N 1120

Patent

active

061307254

ABSTRACT:
An architecture for switching reference generation uses a scanning sync separator to sample each output from the matrix outputs in turn to determine the format of each output. A controller selects an appropriate switch reference signal from among a plurality of switch reference signals according to the determined format and applies such selected switch reference signal to a crosspoint switch corresponding to the matrix output so that subsequent switches between matrix inputs are synchronous.

REFERENCES:
patent: 4743958 (1988-05-01), Bannister et al.
patent: 5521647 (1996-05-01), Hyakutake
patent: 5781250 (1998-07-01), Jun
patent: 5808693 (1998-09-01), Yamashita et al.
patent: 5808702 (1998-09-01), Yoshinobu et al.
patent: 5896181 (1999-04-01), Takamori

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