Analog to digital converter

Details Analog to digital converter Analog to digital converter

2011-05-03

2011-05-03

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S161000, C341S156000

Reexamination Certificate

active

07936297

ABSTRACT:
An analog to digital converter comprising an Nth analog to digital converter and an N+1th analog to digital converter arranged in series such that a residue signal from the Nth analog to digital converter is provided as an input to the N+1th analog to digital converter, characterized in that a bandwidth control means is provided in a signal path for the residue signal and the bandwidth control means is controlled so as to have a first bandwidth during a first period following generation of a conversion result from the Nth analog to digital converter, and a second bandwidth less than the first bandwidth in a second period following the first period.

REFERENCES:
patent: 7030804 (2006-04-01), Yoshioka et al.
patent: 7271750 (2007-09-01), Ali
patent: 7321245 (2008-01-01), Tani et al.
patent: 2004/0077326 (2004-04-01), Shi
patent: 2007/0008282 (2007-01-01), Ogita et al.
patent: 2007/0285296 (2007-12-01), Bilhan
patent: 2009/0128385 (2009-05-01), Joshi et al.
PCT International Search Report and Written Opinion for PCT/US2010/42242 mailed on Sep. 1, 2010.

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