A-D converter

Details A-D converter A-D converter

2009-07-30

2011-10-04

Lauture, Joseph (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

08031102

ABSTRACT:
Provided is an AD converter that converts an input analog signal into a digital signal, comprising an integrator that sequentially integrates signal levels of the analog signal to obtain an integrated waveform, and outputs the integrated waveform; a digital converting section that detects, with prescribed units of temporal resolution, a transition timing, which is a timing at which a magnitude relationship between a signal level of the integrated waveform and a prescribed reference value transitions to a predetermined state; a feedback section that controls the signal level of the integrated waveform with a control period longer than a unit of temporal resolution, according to a result of the detection by the digital converting section; and a signal processing section that generates the digital signal based on the detection result by the digital converting section.

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Written Opinion (PCT/ISA/237) of PCT/JP2008/057014.
Taiwanese Office Action in a counterpart application No. 097113219, dated Jun. 22, 2011.
Japanese Office Action dated Jul. 19, 2011, in a counterpart Japanese patent application No. 2009-510826, citing Foreign Patent document Nos. 1-4.

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