Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform
Reexamination Certificate
2007-01-16
2007-01-16
Vu, Bao Q. (Department: 2838)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Having specific delay in producing output waveform
C327S112000, C327S391000
Reexamination Certificate
active
11293062
ABSTRACT:
A duty ratio correction circuit includes: a first switching amplifier circuit into which an input pulse signal is input; a current control device connected with the switching device for controlling a current in accordance with a bias voltage signal; a waveform shaping circuit that correct an output of the first switching amplifier circuit; a first integration circuit that integrates a corrected output; a reference voltage setting unit that sets a reference voltage signal defining a duty ratio; a comparator circuit that compares an output of the first integration circuit with the reference voltage signal; a second switching amplifier circuit that includes a switching device connected in series with a constant current circuit, the switching device using a comparison judgment signal as a gate signal; and a second integration circuit that integrates an output of the second switching amplifier circuit and outputs the bias voltage signal.
REFERENCES:
patent: 5023472 (1991-06-01), Hashimoto et al.
patent: 5198699 (1993-03-01), Hashimoto et al.
patent: 5668488 (1997-09-01), Sharpe-Geisler et al.
patent: 5764091 (1998-06-01), Sumita et al.
patent: 5923192 (1999-07-01), Hasegawa
patent: 6198322 (2001-03-01), Yoshimura
patent: 6198334 (2001-03-01), Tomobe et al.
patent: 6366151 (2002-04-01), Nakamura
patent: 01-70427 (1989-05-01), None
Pillsbury Winthrop Shaw & Pittman LLP
Vu Bao Q.
Yamaha Corporation
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