Television – Special applications – Manufacturing
Patent
1993-04-02
1995-04-25
Chan, Wing F.
Television
Special applications
Manufacturing
348 12, 348 14, 379105, 455 42, H04N 714
Patent
active
054103436
ABSTRACT:
A public switched telephone network (PSTN) provides digital video signals from a video information provider or digital service bureau to one or more of a plurality of subscriber premises. Administration of orders from subscribers is carried out by a video gateway and file servers at the central office. Asymmetrical digital subscriber line interface (ADSL) units over a local loop carry the necessary signalling between the subscribers and information providers. The interface units frequency multiplex digital video information with voice information to the subscriber and support transmission of a reverse control channel from the subscriber to the central office for transmission back to the information provider. Several enhancements and special features are disclosed.
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Coddington Carl D.
Craig Bernard J.
Gold Jeffrey B.
Klika, Jr. Donald C.
Konkle Daniel B.
Bell Atlantic Network Services Inc.
Chan Wing F.
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