Method and apparatus for detecting stability of a digital compon

Details Method and apparatus for detecting stability of a digital compon Method and apparatus for detecting stability of a digital compon

1992-11-05

1995-09-19

Groody, James J.

Television

Monitoring, testing, or measuring

348194, H04N 1700

Patent

active

054519993

ABSTRACT:
The presence and stability of the input digital video signal of a digital video device, such as a digital video tape recorder system, is determined by a system control microprocessor running a program for periodically reading signals from an input data clock presence detector circuit, a circuit detecting presence of timing reference code words in the input digital video signal, and circuits measuring rates of single-bit and multiple-bit errors in the detected timing reference code words. The input signal is determined present and stable if the input data clock is present, timing reference code words are present, and if measured sync data error rates do not exceed some experimentally determined threshold values.

REFERENCES:
patent: 4215367 (1980-07-01), Schaffer
patent: 4303939 (1981-12-01), Stephens
patent: 4315331 (1982-02-01), Lemoine et al.
patent: 4321619 (1982-03-01), Kamath
patent: 4525840 (1985-06-01), Heinz et al.
patent: 4591925 (1986-05-01), Trytko
patent: 4607360 (1986-08-01), Fukui
patent: 4616259 (1986-10-01), Moran et al.
patent: 4626912 (1986-12-01), Wilkinson
patent: 4800571 (1989-01-01), Konishi
patent: 4805040 (1989-02-01), Oku et al.
patent: 4814872 (1989-03-01), Ivie
patent: 4843469 (1989-06-01), Boyce
patent: 4887279 (1989-12-01), Odenheimer
patent: 4945413 (1990-07-01), Merval et al.
patent: 4951282 (1990-08-01), Mester
patent: 5019906 (1991-05-01), Wesolowski
patent: 5229893 (1993-07-01), Dworatzek et al.

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