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:
Aug. 26, 1997
Filed:
Mar. 29, 1995
Ronald Johannes Mies, Leidschendam, NL;
Dolf Albert Schinkel, Hillegom, NL;
Abstract
A coupling device for coupling a videotelephone with a video generation device. The coupling device includes (i) a first device, for detecting at least one code word contained in a signal originating from the videotelephone, (ii) a second device, coupled with the first device, for generating a control signal in response to the detected code word, and (iii) a change-over device. The change-over device is coupled with the first device and with the second device. The change-over device receives, from the video generating device, both a first video signal, coded in a first manner, and a second video signal, coded in a second manner. The change-over device then feeds, in response to a control signal, coded video signals originating from one of a number of video generating devices to the first device via the change-over device. The coupling device is readily applicable in multicast environments.