Invention Grant
- Patent Title: Analog to digital converter, analog to digital conversion method, and displacement detection apparatus
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Application No.: US16810130Application Date: 2020-03-05
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Publication No.: US11223366B2Publication Date: 2022-01-11
- Inventor: Shun Mugikura
- Applicant: MITUTOYO CORPORATION
- Applicant Address: JP Kanagawa
- Assignee: MITUTOYO CORPORATION
- Current Assignee: MITUTOYO CORPORATION
- Current Assignee Address: JP Kanagawa
- Agency: Oliff PLC
- Priority: JPJP2019-072864 20190405
- Main IPC: G01D5/34
- IPC: G01D5/34 ; H03M1/40 ; H03M1/46

Abstract:
Errors in a cyclic analog to digital converter are reduced. An analog to digital converter is a cyclic analog to digital converter for converting an analog input signal into a digital output signal by performing a plurality of times of cycle processing on the analog input signal. A cycle processing unit performs the cycle processing and outputs a digital signal indicating a value of each bit of the digital output signal. An output circuit receives the digital signal output from the cycle processing unit and outputs, as an output signal, a signal obtained by inverting the digital signal every other cycle. A signal input to the cycle processing unit in second and subsequent cycles is generated in the cycle processing in a previous cycle. In the cycle processing, processing for inverting the signal input to the cycle processing is performed.
Public/Granted literature
- US20200321973A1 ANALOG TO DIGITAL CONVERTER, ANALOG TO DIGITAL CONVERSION METHOD, AND DISPLACEMENT DETECTION APPARATUS Public/Granted day:2020-10-08
Information query
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