Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Frequency or repetition rate conversion or control
Patent
1993-06-22
1994-11-15
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Frequency or repetition rate conversion or control
327237, 327291, H03B 1900
Patent
active
053651820
ABSTRACT:
A method and apparatus for low power clock generation for high speed applications includes a divider for receiving a high frequency input signal and producing a low frequency input signal controlled to a high resolution. A numerically controlled oscillator (NCO) is coupled to the divider and receives a frequency word and the input signal and produces a phase advance command. The phase advance command is used to produce an output transition command. The output transition command is executed in a phase shifter in response to a phase advance/retard polarity input and a high frequency clock input signal. The phase shifter produces a low-frequency output clock signal.
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patent: 5179348 (1993-01-01), Thompson
Callahan Timothy P.
Le Dinh
Motorola Inc.
Nehr Jeffrey D.
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