Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Slope control of leading or trailing edge of rectangular or...
Patent
1996-09-13
2000-03-21
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Slope control of leading or trailing edge of rectangular or...
327134, 327394, 327395, H03K 512
Patent
active
060407247
ABSTRACT:
A bus driver circuit for high speed data transmission includes a plurality of delay blocks connected in series one to another which varies a rise and fall time of an input signal in order to shape an output waveform. Each block includes one or more delay elements for providing a predetermined delay period. A selector input is provided for each delay block such that one or more of the predetermined delay periods can be selected. Hence, the rise and fall time of the input signal can be varied depending upon which block or combination of blocks have been selected to shape the resultant waveform. An output circuit is also included which superimposes the input signal on the resultant output waveform.
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Callahan Timothy P.
Kim Jung Ho
NEC Corporation
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