Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1982-09-30
1986-07-01
Cardillo, Raymond F.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358342, 358343, 360 191, 360 25, 360 31, 360 722, 369 58, H04N 1706, G11B 2730, G11B 2736
Patent
active
045983240
ABSTRACT:
Method and apparatus for evaluating the audio characteristics of an audio-video program recorded on a storage member in which the video portion of the program contains picture frame code numbers. A predetermined picture frame number at which video evaluation of the audio portion of the program is to commence is initially established. The audio and video portions of the recorded audio-video program are recovered, and the picture frame code numbers are extracted from the video portion thereof. The extracted picture frame numbers from the recovered video portion are then compared with the predetermined picture frame number, and audio evaluation of the audio portion of the program commences upon coincidence of the detected picture frame number and the predetermined picture number. Evaluation is effected by measuring predetermined audio characteristics of the recovered audio portion and comparing the measured characteristics with corresponding audio reference characteristics. In a preferred embodiment, the measured audio characteristics of a first storage member are stored in a memory device and used as a "signature" for comparision with measured audio characteristics of a second storage member.
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Hewlett Packard Spectrum Analyzer, Model 3582A, Dual-Channel, Real-Time Spectrum Analysis and Transfer Function Measurements, Technical Data Apr. 1978.
Efron Edward
Kim Young B.
McPherson James O.
Cardillo Raymond F.
Clark Ronald J.
Discovision Associates
Weinhardt Robert A.
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