Surveillance system
Patent 5202759 Issued on April 13, 1993. Estimated Expiration Date: 
January 24, 2012. 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.
January 24, 2012. 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 ReferencesElectronic security and surveillance system Video observation systems Digital image acquisition system Patent #: 4951147 InventorAssigneeApplicationNo. 825531 filed on 01/24/1992US Classes:348/152, Intrusion detection348/14.01TWO-WAY VIDEO AND VOICE COMMUNICATION (E.G., VIDEOPHONE)ExaminersPrimary: Britton, Howard W.Attorney, Agent or FirmInternational ClassH04N 007/18Foreign Application Priority Data1991-01-24 GBAbstractA remote surveillance system includes one or more surveyed stations and a common control station. Each surveyed station includes structure for communication with the control station via telephone line. Each surveyed station further includes video equipment and a data compressor whereby video signals may be converted to a form suitable for transmission to the control station over the telephone line. The control station has a data expander for receiving the video signals. | |
