Test and monitoring system for a digital video tape recorder/rep

Details Test and monitoring system for a digital video tape recorder/rep Test and monitoring system for a digital video tape recorder/rep

1988-06-08

1990-03-06

Lall, Parshotam S.

Boots, shoes, and leggings

371 501, 360 32, 358327, 358139, 358 10, G06F 1100, G11B 509

Patent

active

049071815

ABSTRACT:
A system for testing and/or monitoring a digital videotape apparatus makes use of the presence several identically equipped recording and reproducing channels to detect or test for errors by comparing the treatment of the same data in two or more channels. Comparisons are made at test nodes between reference "signatures" and actual "signatures" in normal operation or in test operation. Syndrome units are used to test or monitor circuits for protection against errors and for error correction. The monitoring and testing is done in a system which connects a microcomputer to test nodes of the equipment to be tested or monitored over a test bus.

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patent: 4730321 (1988-03-01), Machado
patent: 4742519 (1988-05-01), Abe et al.
patent: 4799113 (1989-01-01), Murakami

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