Cable television-usage system

Details Cable television-usage system Cable television-usage system

1991-09-09

1994-02-22

Eisenzopf, Reinhard J.

Television

Special applications

Manufacturing

455 2, 455 62, H04N 700

Patent

active

052892719

ABSTRACT:
A cable-television usage system that enables subscribers to be charged based upon their actual usage of the cable channels offered. The system is compatible with current cable equipment and methods. It can be installed outside of the subscribers dwelling and it is capable of determining usage for multiple sets and various cable configurations including converter boxes. Channel usage is monitored using the local oscillator tuning circuit that tunes the channel for the subscriber's set. An unique switching design permits the carrier frequency to be acurately measured by briefly disconnecting the cable from the set. An electronic switching arrangement enables the measurement to be made during a random manner corresponding to one pixel's time on the TV screen. The invention also permits polling of subscriber's television preferences without any effort required by the subscribers.

REFERENCES:
patent: 3742463 (1973-06-01), Haselwood et al.
patent: 4577220 (1986-03-01), Laxton et al.
patent: 4723302 (1988-02-01), Fulmer et al.
patent: 4752954 (1988-06-01), Masuko

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