Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform
Reexamination Certificate
2008-10-02
2010-11-02
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Having specific delay in producing output waveform
C327S362000, C327S269000, C327S277000
Reexamination Certificate
active
07825713
ABSTRACT:
An absolute time delay generating device includes a PVT (process-voltage-temperature) detection device and a delay-timing generator. The PVT detection device includes at least a delay module and a signal phase/frequency control module. The delay module includes a control unit and a reference unit. The control unit differs from the reference unit in sensitivity of delay property to PVT. The delay module compares phase or frequency differences generated when origin signals pass through the control unit and reference unit respectively, and produce delay parameters of the delay module. The signal phase/frequency control module receives and compares the delay parameters to determine an ambient PVT condition for the absolute time delay generating device, so as to control and correct the delay-timing generator and thereby generate accurate absolute time delay. Under various PVT influences, the absolute time delay generating device is capable of generating accurate, absolute time signals.
REFERENCES:
patent: 6169436 (2001-01-01), Marbot
patent: 7034597 (2006-04-01), Mo et al.
patent: 2003/0160645 (2003-08-01), Eto et al.
patent: 2006/0097767 (2006-05-01), Lu
Chen Juinn-Ting
Lee Chen-Yi
Yu Chien-Ying
Yu Jui-Yuan
Cole Brandon S
Corless Peter F.
Donovan Lincoln
Edwards Angell Palmer & & Dodge LLP
Jensen Steven M.
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