Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2008-02-29
2011-11-08
Tran, My-Chau T (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S102000
Reexamination Certificate
active
08054307
ABSTRACT:
A device for driving a light source in an image display device includes input terminals to receive a horizontal synchronization signal and a control signal, an oscillator to generate a reference signal having a frequency, a controller to modulate the reference signal in response to the control signal and output a modulated signal, and a phase difference detecting unit to receive the horizontal synchronization signal and the modulated signal and detect a phase difference between the horizontal synchronization signal and the modulated signal to generate an output signal indicating the phase difference. The oscillator adjusts the frequency of the reference signal in response to the output signal of the phase difference detecting unit so that the horizontal synchronization signal and the reference signal are synchronized with each other.
REFERENCES:
patent: 4365204 (1982-12-01), Haque
patent: 5331253 (1994-07-01), Counts
patent: 5844540 (1998-12-01), Terasaki
patent: 5854543 (1998-12-01), Satoh et al.
patent: 5912713 (1999-06-01), Tsunoda et al.
patent: 6011534 (2000-01-01), Tanaka et al.
patent: 6127865 (2000-10-01), Jefferson
patent: 6246183 (2001-06-01), Buonavita
patent: 6483253 (2002-11-01), Okamoto et al.
patent: 6944252 (2005-09-01), Okamoto
patent: 6961044 (2005-11-01), Woo
patent: 7138974 (2006-11-01), Hirakata et al.
patent: 7145546 (2006-12-01), Kang et al.
patent: 7362303 (2008-04-01), Jang
patent: 2002/0050973 (2002-05-01), Takaoka et al.
patent: 2004/0004596 (2004-01-01), Kang et al.
patent: 1119223 (2001-07-01), None
patent: 2378062 (2003-01-01), None
patent: 09237684 (1997-09-01), None
patent: 10247593 (1998-09-01), None
patent: 2000-323292 (2000-11-01), None
patent: 2002-132228 (2002-05-01), None
patent: 100292551 (2001-03-01), None
Daniel Abramovitch; “Phase-Locked Loops: A Control Centric Tutorial”; Proceedings of the American Control Conference, vol. 1, 2002, pp. 1-12.
European Search Report for application No. 04005862.0-2205 dated Mar. 21, 2006.
Cantor & Colburn LLP
Samsung Electronics Co,. Ltd.
Tran My-Chau T
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