Delay circuit and method with delay relatively independent...

Details Delay circuit and method with delay relatively independent... Delay circuit and method with delay relatively independent...

2005-08-16

2005-08-16

Nguyen, Linh My (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

C327S112000

Reexamination Certificate

active

06930528

ABSTRACT:
Methods and systems for controlling delay relatively independent of process, supply-voltage, and/or temperature (“PVT”) variations include sensing an output signal after a number of inverters and activating different numbers of transistors and/or adjusting strength of transistors in a delay path to compensate for PVT variations. In an embodiment, a waveform is received, delayed, and output to an output terminal using at least one relatively low-power device. Supplemental output power is provided by at least one relatively high-power device until the output waveform exceeds a threshold.

REFERENCES:
patent: 5175445 (1992-12-01), Kinugasa et al.
patent: 5559394 (1996-09-01), Wood
patent: 5767728 (1998-06-01), Michail et al.
patent: 6177819 (2001-01-01), Nguyen
patent: 6256235 (2001-07-01), Lee
patent: 6380770 (2002-04-01), Pasqualini
patent: 6518794 (2003-02-01), Coteus et al.

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