Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Patent
1998-10-08
2000-08-22
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
327156, H03K 406
Patent
active
061078484
ABSTRACT:
Apparatus for producing an oscillating signal in a predetermined phase relationship with an input signal which generates its output signal by mixing in variable proportions two or more reference oscillating signals. Preferably the reference signals should be in quadrature relationship and have approximately the same frequency as the desired output, but this is not essential. The output signal may be desired to be in phase with the input signal or to have a predetermined phase offset. In a further aspect, apparatus is described which generates quadrature related clock signals, which may be used as the reference signals in the phase-lock arrangement.
Joy Andrew Keith
Pickering Andrew James
Simpson Susan Mary
Callahan Timothy P.
Nguyen Linh
Pheonex VLSI Consultants Ltd.
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