Cable TV security means
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 26, 1982
Grant Date -
N/A
app pub date -
Oct 31, 1979
filing date -
Oct 31, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Security means for cable television operators includes an enabling circuit which is located outside of the subscriber premises and is connected in circuit through the television cable with the power supply of the subscriber's cable television converter located within his premises. There is a sensing circuit between the enabling circuit and the power supply which determines the presence or absence of the enabling circuit and thus controls operation of the converter power supply.
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Family
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