04008369 is referenced by 316 patents and cites 3 patents.

A PABX telephone interfaced cable television system especially useful in hotels and motels for distributing free and premium program channels via a coaxial cable television signal distribution network to one or more subscriber terminals and associated television sets, includes a remotely tuned R.F. signal converter connected to each subscriber's television set and the coaxial cable network for enabling the set to receive a subscriber selected one of the premium channels not normally receivable by the set. The converter is automatically tuned to the selected premium channel by enabling signals transmitted from a central station to the subscriber's converter via the PABX telephone network and the subscriber's telephone. The request for a premium channel is made from the subscriber's telephone by the dialing of a predetermined sequence of digits peculiar to the requesting subscriber and the desired premium channel selected for viewing. The central station includes a control and monitoring means for receiving, verifying, and processing the subscribers dialed telephone request and for providing the enabling signals for tuning the subscriber's converter to the requested premium channel. The control and monitoring means also includes output signals to a paper tape printer for providing a record of the premium channel use activity of each subscriber terminal in the system.

Title
Telephone interfaced subscription cable television system especially useful in hotels and motels
Application Number
5/554347
Publication Number
4008369
Application Date
February 28, 1975
Publication Date
February 15, 1977
Inventor
Paul M Dormans
Fort Wayne
IN, US
Donald L Theurer
Fort Wayne
IN, US
Agent
George R Pettit
William J Streeter
Thomas A Briody
Assignee
The Magnavox Company
IN, US
IPC
H04N 7/18
H04N 7/16
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