JPS55164976A - Processing system for analog digital signal - Google Patents
Processing system for analog digital signalInfo
- Publication number
- JPS55164976A JPS55164976A JP7064879A JP7064879A JPS55164976A JP S55164976 A JPS55164976 A JP S55164976A JP 7064879 A JP7064879 A JP 7064879A JP 7064879 A JP7064879 A JP 7064879A JP S55164976 A JPS55164976 A JP S55164976A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- signal
- vref
- digital signal
- during
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE: To enable to add the correction to the A/D conversion only with a simple circuit, by adding the addition and subtraction for control signal at sampling mode for input analog signal, in charge re-distribution system.
CONSTITUTION: The input analog signal Ain is charged to the capacitor group C1WCn during the time when the sampling switch 11 is ON. During this first sampling period, one switch among the switches 13-1W13-n is connected to the reference voltage source + Vref or - Vref. Further, when the output of the comparator 12 is 1, the logic circuit 15 connects the contact of the switch 14 to - Vref via the switch decoder 17, and when 0, to + Vref. Accordingly, during the sampling period, with the operation of one switch among the switches 13-1W13-n and the switch 14 corresponding to the control digital signal CD, the addition and subtraction of the control analog signal specified with the signal CD to the signal Ain is made and the digital signal Dowt can be obtained with correction added.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7064879A JPS55164976A (en) | 1979-06-07 | 1979-06-07 | Processing system for analog digital signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7064879A JPS55164976A (en) | 1979-06-07 | 1979-06-07 | Processing system for analog digital signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55164976A true JPS55164976A (en) | 1980-12-23 |
Family
ID=13437672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7064879A Pending JPS55164976A (en) | 1979-06-07 | 1979-06-07 | Processing system for analog digital signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55164976A (en) |
-
1979
- 1979-06-07 JP JP7064879A patent/JPS55164976A/en active Pending
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