1
Ralph P Harney, Stanley E Guif: Catv sine wave coding system. Oak, Kinzer Plyer Dorn & McEachran, May 17, 1977: US04024575 (122 worldwide citation)

A means for decoding a generally constant frequency sine wave scrambled television signal uses an automatic gain control circuit in a closed loop. The scrambling, applied at the head end of the television system, applies a greater scrambling level to the audio carrier than it does to the video carri ...


2
Harney Ralph P, Guif Stanley E: Systeme de codage dondes sinusoidales pour stac (systeme de television a antenne collective), Catv sine wave coding system. Oak Industries, GEORGE H RICHES AND ASSOCIATES, November 10, 1981: CA1112353

ABSTRACT OF THE DISCLOSURE This invention relates to a subscription TV systemhaving means for decoding a generally constant frequency sinewave scrambled television signal which uses an automatic gaincontrol circuit in a closed loop. The scrambling, applied atthe head end of the television system, ap ...


3
Harney Ralph P, Guif Stanley E: Systeme de codage de signaux sinusoidaux pour stac, Catv sine wave coding system. Oak Industries, GEORGE H RICHES AND ASSOCIATES, July 7, 1981: CA1104708

ABSTRACT OF THE DISCLOSURE A means for decoding a generally constant frequencysine wave scrambled television signal uses an automatic gain con-trol circuit in a closed loop. The scrambling, applied at thehead end of the television system, applies a greater scramblinglevel to the audio carrier than i ...