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:
Aug. 10, 1999

Filed:

Mar. 20, 1996
Applicant:
Inventors:

Hyung-Gi Kim, Seoul, KR;

Young-Keun Kim, Bucheon, KR;

Do Wan-Kim, Seoul, KR;

Chang-Jin Jeong, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348 15 ; 348 17 ; 379202 ; 379 9328 ; 379 9321 ;
Abstract

A multipoint video conference control system for controlling a video conference system by simultaneously connecting three or more video terminals using an ISDN includes a main controller having main speaker's channel information and specific channel information received from a chair terminal, a MVIP bus for synchronously transmitting/receiving data and a control signal, an H.221 multiplexer for synchronizing a phase detected to H.221 frame synchronization from the data received through the MVIP bus and separating the data to audio and video signals, a video processor for transmitting the separated video signal to a terminal according to an audio level or processing the separated video signal by a video split screen, and an audio processor for selecting terminals of a prescribed number having the loudest voice to sum corresponding audio data or processing conference data per group.


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