Resumes
Resumes
Bheem Patel Phones & Addresses
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2020 Parkmeadow Pl, Fremont, CA 94539 (510) 226-1920
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46859 Bradley St, Fremont, CA 94539 (510) 226-1920
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1063 Morse Ave, Sunnyvale, CA 94089 (408) 747-5709
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Tempe, AZ
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10733 Culbertson Dr, Cupertino, CA 95014 (408) 253-2945
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2420 Pacific Dr, Santa Clara, CA 95051 (408) 615-7364
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Alameda, CA
Publications
Us Patents
Variable-Delay Signal Generators And Methods Of Operation Therefor
View pageUS Patent:
20050140417, Jun 30, 2005
Filed:
Dec 30, 2003
Appl. No.:
10/751135
Inventors:
Bheem Patel - Sunnyvale CA, US
Ming Zeng - Arcadia CA, US
Ming Zeng - Arcadia CA, US
International Classification:
H03H011/26
US Classification:
327277000
Abstract:
A variable-delay signal generator circuit includes a delay chain and an interpolator circuit. The delay chain produces multiple multi-phase signals, where each of the multi-phase signals represents a delayed version of an input event signal. Each of the multi-phase signals is separated from consecutive signals by a first phase increment. The interpolator circuit includes multiple interpolator blocks, where each block receives a multi-phase signal. The interpolator circuit interpolates between consecutive interpolator blocks, to produce an output signal that represents a modified-delay version of the input event signal. The output signal is delayed to one of multiple phase delays that exist between consecutive multi-phase signals, inclusive. To produce the output signal, a variable current source within each interpolator block is adjusted, based on a current source select signal. The current source select signal is produced by a bias circuit, which includes a split current source.