H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/109
H04N 3/19 (2006.01) H04N 3/20 (2006.01)
Patent
CA 1259129
ABSTRACT A phase-lock-loop circuit of a deflection apparatus generates a first signal at the horizontal frequency during normal operation. The first signal is coupled to a phase-control-loop circuit that maintains the timing of the deflection current in phase with the first signal. A fault protection circuit disables the generation of signal transitions in the first signal when a fault condition occurs. A circuit that detects the presence of transition edges in the first signal prevents the operation of the deflection output stage when the transition edges in the first signal are missing.
570825
Doty James H. II
Lendaro Jeffery B.
Eckersley Raymond A.
Rca Licensing Corporation
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