Method and apparatus for testing the quality of recorded informa

Details Method and apparatus for testing the quality of recorded informa Method and apparatus for testing the quality of recorded informa

1998-06-22

1999-05-11

Chevalier, Robert

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 52, 348705, H04N5/91;5/93

Patent

active

059037016

ABSTRACT:
An ABX testing device for comparing for example two video or audio programs is provided to determine if the two programs can be distinguishable. The device selects randomly one of the programs and the tester can listen or view and compare sequentially the random selection to either of the programs. The tester then can vote by designating one of the programs as being the randomly selected program. The designations are accumulated and statistics are generated regarding the same. Preferably the device includes a control box, a switch mechanism and a PC coupled to both by standard parallel cable.

REFERENCES:
patent: 5625461 (1997-04-01), Okamoto et al.
patent: 5627656 (1997-05-01), Sonohara et al.
patent: 5629980 (1997-05-01), Stefik et al.
patent: 5732183 (1998-03-01), Sugiyama

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