Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1989-06-29
1992-01-07
Ng, Jin F.
Facsimile and static presentation processing
Static presentation processing
Attribute control
379 53, H04N 714, H04N 142
Patent
active
050796275
ABSTRACT:
The present invention, the Videophone, is a compact audio/video device that is capable of both sending and receiving audio and visual signals, and is designed to be compatible with standard telephone equipment. The Videophone includes a modified speakerphone, a camera, a viewing screen, and an imaging system based upon a revolving disk of film having a series of holographic apertures which divide the subject image into elements of light. The disk has two bands which are used to alternately scan and reproduce an image. The visual image is process by unique circuitry that can, for ease of manufacture, be contained on a single customized chip. The videophone has the capability to transmit a full motion picture of reasonably good quality. Moreover, audio transmission is not blocked during transmission of the video signal.
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patent: 4827339 (1989-05-01), Wada et al.
patent: 4849811 (1989-07-01), Kleinerman
Luma.TM. Video Telephone by Mitsubishi, Sharper Image, 7-17-86, 358-85.
Kline Keith
Ng Jin F.
Optum Corporation
Woo Stella L.
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