The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 12, 1989

Filed:

Oct. 12, 1988
Applicant:
Inventors:

Jacques Guichard, 75015 Paris, FR;

Gerard Eude, 77200 Torcy, FR;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358143 ; 358 85 ;
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.


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