Sound and image transmission system

Details Sound and image transmission system Sound and image transmission system

1988-10-12

1989-12-12

Shepperd, John W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 85, H04N 704

Patent

active

048871583

ABSTRACT:
A sound and image transmission system which is applicable to television-telephony, uses a single transmission line and multiplexes the image signal and the sound signal with an output which is essentially identical to the rhythm of an encoded image and the sound of the latter image. The encoder and decoder for the image processing lines function for only part of the time, but faster than if they functioned continuously.

REFERENCES:
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patent: 4542406 (1985-09-01), Shimoyama et al.
patent: 4544950 (1985-10-01), Tu
Philips Technical Review, vol. 36, No. 8, 1987.
Electrical Communication, vol. 51, No. 2, 1976.
IEEE Global Telecommunications Conference (Dec. 1986).
Philips Technical Review, vol. 36, No. 4, 1976.
Proceedings of National Communications Forum, vol. 39, 1985.
Technische Rundschau, vol. 78, No. 51, Dec., 1986.
Patent Abstracts of Japan, vol. 8, No. 206, Sep. 1984, TN-Nachrichten, No. 89, 1986.
British Telecommunication Engineering; "Audiovisual Telecommunication Services-A Unified Approach" by N. D. Kenyon; vol. 4, Oct. 1985, pp. 169-174.

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