Digital video switch for video teleconferencing
December 20, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMultibeam, digitally modulated, time division, switched satellite communications system Audio teleconferencing Successive frame digital multiplexer with increased channel capacity Teleconferencing method and system Videophone network system Switching system with video switching matrix Video conferencing network Voice, data or both over one telephone line in a T-1 carrier system Multi-point conference system Telecommunications system and method Patent #: 5062136 InventorAssigneeApplicationNo. 811131 filed on 12/20/1991US Classes:348/14.11, Switching348/14.09, Conferencing with multipoint control unit379/202.01ConferencingExaminersPrimary: Kuntz, CurtisAssistant: Chan, Jason Attorney, Agent or FirmInternational ClassesH04N 001/42H04N 007/14 H04M 003/42 AbstractA digital video switch system comprising a smart control terminal is coupled to a digital access controller and to a multipoint control unit. The smart control terminal is provided with a plurality of function keys, each of which is designed to provide automatic interconnection of input and output ports of the digital access controller and the multipoint control unit so that a predetermined interconnection of video and audio signals from remote conferencing sites are interconnected via input/output ports of the digital access controller with each other in a desired format to provide central teleconferencing control of a plurality of sites from a central control site. | |
