Interactive television terminal responsive to user commands which combines static service data and recurrently broadcast dynamic service data to produce composite service display signals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 16, 1997
Grant Date -
N/A
app pub date -
Apr 6, 1994
filing date -
Apr 6, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an interactive TV system, information which can be left relatively unchanged for substantial periods of time is stored in CD-ROM at each subscriber site. Information which changes between CD-ROM replacements is transmitted from the head end to the subscriber sites in a recurring, or recycling data stream. Individual subscriber sites select the information they desire from the data stream and reproduce it, together with any related information stored in CD-ROM. Transactions based on the so-reproduced information are activated by telephone line transmissions from the subscriber sites.
First Claim
Family
International Classification(s)
Cited Art Landscape
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