Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1993-09-03
1996-01-23
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358310, 358330, 358334, 348392, 348393, 348713, H04N 979
Patent
active
054869293
ABSTRACT:
A system and method for recording video signals onto analog magnetic tape, and for the playback of those recorded signals. Such a system includes a digital luminance signal generator, a first digital chrominance signal, and a second digital chrominance signal compatible with a predetermined composite television signal standard. The chrominance signals are sample rate reduced by a sample rate reduction circuit, and then all three signals are multiplexed to generate a digital time division multiplexed video signal. This signal is frequency modulated, and then converted to an analog signal for recording onto an analog magnetic tape. This process is reversed for the playback of prerecorded signals. The signals recorded by and recovered by the present invention should be free of most artifacts related to composite television signal recording, have increased dynamic range, and have noise immunity comparable to other FM recording methods. Performance should also be independent of the type of magnetic tape used.
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Apple Computer Inc.
Chin Tommy P.
Larwood David J.
Truong Khoi
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