Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform
Reexamination Certificate
2006-08-08
2006-08-08
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Having specific delay in producing output waveform
C327S277000
Reexamination Certificate
active
07088163
ABSTRACT:
A method and circuit to adjust timing between received differential data and clock signals to compensate for differences between transmission paths of data and clock signals. According to one embodiment, a timing adjustment circuit includes a decoder, a differential delay stage and a converter stage. The decoder is arranged to select one of the differential tri-state buffers, which provides the signal with a selected delay to a differential-to-single-ended converter. The converter provides properly a timing-adjusted signal to other circuits for further processing. Two current sources may be employed instead of resistive loads for the converter stage resulting in increased operating frequency and decreased power dissipation.
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Bell Marshall J.
Kozisek James R.
Branch John W.
Callahan Timothy P.
Cox Cassandra
Darby & Darby PC
National Semiconductor Corporation
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