Invention Grant
- Patent Title: Analog-digital conversion cell and analog-digital converter
- Patent Title (中): 模拟数字转换单元和模拟数字转换器
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Application No.: US12698853Application Date: 2010-02-02
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Publication No.: US07986258B2Publication Date: 2011-07-26
- Inventor: Kunihiko Gotoh , Takeshi Takayama
- Applicant: Kunihiko Gotoh , Takeshi Takayama
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Arent Fox LLP
- Priority: JPPCT/JP2007/065240 20070803
- Main IPC: H03M1/12
- IPC: H03M1/12

Abstract:
There is provided an analog-digital conversion cell being an analog-digital conversion cell that performs an N-bit analog-digital conversion (where N is a natural number) and including: a comparison circuit (202) comparing an analog input signal VI based on a plurality of reference voltages and outputting a first digital code DA selected from Q digital codes (where Q is a natural number equal to or more than 2N+1 and equal to or less than 2N+1−1) in accordance with a size of the analog input signal VI; a first logic operation circuit (203) outputting a second digital code DB selected from Q digital codes, which is expressed by DB=DA×KA+DB0 where a constant KA is a decimal number satisfying a condition of 1
Public/Granted literature
- US20100134337A1 ANALOG-DIGITAL CONVERSION CELL AND ANALOG-DIGITAL CONVERTER Public/Granted day:2010-06-03
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