Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1997-10-17
1999-04-13
Westin, Edward P.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
315370, 315384, G09G 518, H04N 322, H01J 2970
Patent
active
058942033
ABSTRACT:
A horizontal retrace time adjustment pulse generating circuit includes a microcomputer for outputting a horizontal flyback signal and an analog voltage based on an input horizontal synchronizing frequency; oscillation duty adjusting circuit for outputting a duty-cycle adjusting signal based on the analog voltage of the microcomputer; a monostable multivibrator for outputting a rectangular wave based on the horizontal flyback signal of the microcomputer and the duty-cycle adjusting signal of the oscillation duty adjusting circuit; feedback signal detecting circuit for detecting a horizontal flyback pulse from a horizontal deflection circuit and outputting the detected signal; and signal coupling circuit for coupling the rectangular wave of the monostable multivibrator and the detected signal from the feedback signal detecting circuit and outputting a result of the coupling as a time control pulse for horizontal retrace.
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patent: 5714849 (1998-02-01), Lee
Bushnell Esq. Robert E.
Gardner Shane R.
Samsung Electronics Co,. Ltd.
Westin Edward P.
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