Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Rectangular or pulse waveform width control
Reexamination Certificate
2006-09-05
2006-09-05
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Rectangular or pulse waveform width control
C327S423000, C327S494000
Reexamination Certificate
active
07102405
ABSTRACT:
A pulse-width modulation circuit converts an input signal into a pulse signal to be supplied to a switch amplifying circuit. The modulation circuit includes a comparison signal generator, an amplitude controller for modulating a comparison signal from the signal generator, and a comparator for comparing the modulated comparison signal and the input signal. The comparator outputs a signal whose level is inverted in accordance with the level of the input signal. The signal outputted from the comparator is supplied to the switch amplifying circuit.
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Hisamoto Sadatoshi
Takatori Koji
Callahan Timothy P.
Hamre Schumann Mueller & Larson P.C.
Nguyen Hai L.
Onkyo Corporation
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