Delay circuit

Details Delay circuit Delay circuit

2008-03-12

2009-08-18

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

C327S277000, C327S261000, C327S284000

Reexamination Certificate

active

07576585

ABSTRACT:
A delay circuit, including: a plurality of first delay units coupled in series and each configured to generate a delay time that is approximately double a unit delay time; a second delay unit configured to generate the unit delay time and coupled to a last stage of the plurality of first delay units; and a selector configured to select either an output signal of the last stage of the plurality of first delay units or an output signal of the second delay unit, wherein an external input signal is input to the first delay unit and to each second delay unit, and the first delay unit and the second delay unit each include a switch circuit configured to output with a delay either an output signal of a previous stage delay unit or the external input signal.

REFERENCES:
patent: 5977809 (1999-11-01), Wang et al.
patent: 6225843 (2001-05-01), Taniguchi et al.
patent: 7403056 (2008-07-01), Qu et al.
patent: 2004/0051576 (2004-03-01), Zhang et al.
patent: 6-021761 (1994-01-01), None

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