Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1985-05-06
1988-03-29
George, Keith E.
Facsimile and static presentation processing
Static presentation processing
Attribute control
455 4, H04N 710
Patent
active
047347643
ABSTRACT:
A method of, and a system for, selectively delivering still television video with accompanying audio to home subscribers over a cable television system for advertising, promotional or educational purposes. A maximum number of home subscribers can interactively request presentations of their own choosing to be displayed on their home television sets. Only one standard television channel is required for transmission of still video with accompanying audio to serve 300 concurrent users. No equipment is required in the subscriber's home. The video is presented as still frames from one of a number of videodisc players, transmitted over one television channel during the appropriate time interval of 1/30th (or 1/25th) of a second. Such video frames, which may also contain overlaid graphics information, are uniquely addressed to a remote storage device. Unused bandwidth is used for the transmission of up to 300 discrete audio messages. The remote storage device identifies the appropriate video still frame, stores it, combines it with the corresponding audio message and conveys both to the home subscribers' television on a pre-selected channel. By uniquely addressing video frames to the remote storage device, either 30 (or 25) different video frames per second can be conveyed on one television channel to 30 (or 25) different remote storage devices for retransmission to home subscribers. Thus, if a home subscriber sees a given still video frame for 10 seconds, his remote storage device need not be updated for those 10 seconds, enabling the system to transmit 300 (10 seconds.times.30/second) different video frames to 300 other remote storage devices, thereby serving 300 concurrent users.
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Coumans Peter J. M.
Hart George M.
McNorgan Richard M.
Pocock Terrence H.
Cableshare, Inc.
George Keith E.
LandOfFree
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