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.
Patent No.:
Date of Patent:
Oct. 18, 1977
Filed:
May. 24, 1976
Alain M Poirier, Meudon, FR;
Georges Buchner, Paris, FR;
Gilbert Francois Martel, Issy-les-Moulineaux, FR;
Other;
Abstract
Video conference system connecting a plurality of remotely located conference rooms, each containing a group of conferees. It comprises in each room a plurality of videotelephones respectively assigned to the conferees, each including a camera and an image receiver and a plurality of microphones respectively associated with these videotelephones. Means are provided for comparing the levels of the speech signals generated by said microphones in each room and registering an address signal defining the videotelephone associated with the microphone generating the loudest speech signal. Means are further provided for adding all the signals generated by the microphones in each room and thereby obtaining room cumulated microphone signals, the levels of which are compared and an address signal defining the room whose microphones generate the loudest cumulated signal is registered. The rooms are connected through transmitting and receiving video facilities. Switching means selectively connects the cameras of the videotelephones of a room to the image receivers thereof and to said video signal transmitting and receiving video facilities and a switch logic controls said switching means and is itself controlled by the videotelephone address signals and the room address signals.