Interactive multimedia communication system
Patent 5325423 Issued on June 28, 1994. Estimated Expiration Date: 
November 13, 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.
November 13, 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 ReferencesMethod and apparatus for providing interactive retrieval of TV still frame images and audio segments Message management system Multimedia bidirectional broadcast system Multipurpose computerized television Patent #: 5192999 InventorAssigneeApplicationNo. 975824 filed on 11/13/1992US Classes:379/93.08, Transmission scheme (e.g., compression/decompression, transmission rate)725/106, Telephony via television distribution network725/111Cable modemExaminersPrimary: Kuntz, CurtisAssistant: Chan, Jason Attorney, Agent or FirmInternational ClassesH04M 011/00H04N 007/00 H04N 007/10 H04N 007/14 AbstractA system and device is provided that enhances the interactivity of multimedia information across a communications network or in combination with other networks including telecommunication and cable broadcasting. The system includes a plurality of multimedia call processing system, an interactive call processing system, and a plurality of interactive multimedia devices (IMDs). This system has the advantage of providing compression and/or transmission algorithms to maximize enhancement of the multimedia information.Other References
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