Cable tv security means

Details Cable tv security means Cable tv security means

H - Electricity

04

N

350/20

H04N 7/16 (2006.01)

Patent

CA 1149929

ABSTRACT OF THE DISCLOSURE 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 con- verter 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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