Television – Two-way video and voice communication – User positioning
Patent
1994-03-25
1996-04-09
Eisenzopf, Reinhard J.
Television
Two-way video and voice communication
User positioning
348 12, 455 1, 455 51, H04N 710
Patent
active
055059015
ABSTRACT:
Off-premises cable television pay per view apparatus is coupled between first and second diplexers of off-premises subscriber service providing equipment. The diplexers separate the transmission path between a headend and a subscriber into downstream or forward and upstream or reverse transmission paths. A radio frequency transmitter is coupled between a controller and the upstream diplexer which may actuate a selected one of a plurality of data channels in the notoriously noisy subsplit 5-30 megahertz transmission spectrum for reporting billable events. On-premises equipment is minimized to comprise only a unidirectional data transmitter. The data transmission is sent repetitively over a predetermined period of time before the data transmitter, comprising a microprocessor, turns itself off to conserve power. Thus, data transmitted from the subscriber in a first format is received at off-premises equipment, service is authorized there if appropriate, and then data is transmitted over a data channel selected so as to avoid noisy portions of the spectrum in a second format to a headend.
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"TGT--The Affordable Solution", AM Cable TV Industries, Inc.
"Addressable Tap IT-1-SM", Control Com Inc.
The "Tier Guard" System, E-Com Corporation.
Farmer James O.
Harney Michael P.
Parikh Himanshu R.
Schutte Mark E.
West, Jr. Lamar E.
Charouel Lisa
Eisenzopf Reinhard J.
Scientific-Atlanta, Inc.
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