Method and apparatus for video broadcasting and teleconferencing
August 27, 2010. 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 References 3213201 3693090 3733430 Digital transmission system for television video signals Satellite video multiplexing communications system Time compression multiplexing of video signals Wide screen LCD panel with electrical terminal connections Time division multiplexing system Image processing method using a block overlap transformation procedure Television information system InventorApplicationNo. 573539 filed on 08/27/1990US Classes:348/14.08, Conferencing (e.g., loop)348/14.11, Switching370/265, Particular technique for combining diverse information types379/202.01ConferencingExaminersPrimary: Groody, James J.Assistant: Metjahic, Safet Attorney, Agent or FirmInternational ClassesH04N 007/04H04N 007/14 AbstractA video teleconferencing network among several remote sites includes a central switching system for receiving and processing signals from the remote sites. Video cameras are located at each one of the remote sites for generating video signals. Each camera includes an optical system having a plurality of lens systems for processing colors of different frequencies. Each one of the lens systems includes a shutter for generating amplitude vectorial signals proportional to the amplitude of the color signal being processed by the lens system. Each one of the lens systems further includes means responsive to the frequency of the corresponding color being processed by the particular lens system, for generating vectorial signals proportional to the frequency of the color signal being processed by the lens system. A modular monitor has a relatively small size liquid crystal modular screen, for use by an individual user to display texts and graphics. The modular screen includes a plurality of modules selectively engageable to one another, by the individual user, to form a single unitary screen. A user station is adapted to be coupled to the single unitary screen, for controlling the display of information thereon.Other References
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