Error detection/concealment for serial digital video

Details Error detection/concealment for serial digital video Error detection/concealment for serial digital video

1992-09-08

1994-01-25

Powell, Mark R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

371 3, 371 51, 358160, H04N 514

Patent

active

052820327

ABSTRACT:
A method of detecting bit errors in serial digital video uses a digital demodulator to process a parallel video data signal derived from the serial digital video. The output of the demodulator is converted to analog, lowpass filtered, squared and compared with a threshold value. The result of the comparison produces an error signal when bit errors occur. The bit errors may be counted over a predetermined time period, may be used to switch a data filter into the video data output path to conceal the bit errors, and may be used to map the bit errors to a display for visualization of the location of the errors within a video image represented by the serial digital video.

REFERENCES:
patent: 3643027 (1972-02-01), Goldberg
patent: 4566100 (1986-01-01), Mizuno et al.
patent: 5113397 (1992-05-01), Kaaden et al.
patent: 5208666 (1993-05-01), Elkind et al.

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