JPS5694834A - A/d converter - Google Patents

A/d converter

Info

Publication number
JPS5694834A
JPS5694834A JP17188879A JP17188879A JPS5694834A JP S5694834 A JPS5694834 A JP S5694834A JP 17188879 A JP17188879 A JP 17188879A JP 17188879 A JP17188879 A JP 17188879A JP S5694834 A JPS5694834 A JP S5694834A
Authority
JP
Japan
Prior art keywords
terminal
voltage
ccds2
end part
delay time
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
Application number
JP17188879A
Other languages
Japanese (ja)
Inventor
Yuichiro Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP17188879A priority Critical patent/JPS5694834A/en
Publication of JPS5694834A publication Critical patent/JPS5694834A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/502—Analogue/digital converters with intermediate conversion to time interval using tapped delay lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To obtain a high-accuracy A/D converter with an easy production, by making use of the signal delay effect caused by a CCD shift register. CONSTITUTION:The pulse delaying device 1 contains the 1st and 2nd CCDs2 and 3 which carry out a transfer in the opposite direction to each other plus the resistive insulator gate 5 provided between the CCDs2 and 3. The voltage Vb(t) obtained by sampling the analog voltage Va(t) is applied to the terminal P2, and thus a channel extending from the end part of the side of the terminal P2 up to the position corresponding to the sample voltage Vb(t) is caused right under the gate 5. As a result, each transfer path of the 1st and 2nd CCD is short-circuited at the end part S1 of the channel, and thus the control pulse VM given from the control pulse generator MGP and put into the terminal Q1 is delayed by the delay time tauD1 in accordance with the length of the integrated transfer path and then detected at the terminal Q2. This delay time is counted by the counter CNT to deliver the digital quantity to the parallel output terminal OUT.
JP17188879A 1979-12-28 1979-12-28 A/d converter Pending JPS5694834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17188879A JPS5694834A (en) 1979-12-28 1979-12-28 A/d converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17188879A JPS5694834A (en) 1979-12-28 1979-12-28 A/d converter

Publications (1)

Publication Number Publication Date
JPS5694834A true JPS5694834A (en) 1981-07-31

Family

ID=15931652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17188879A Pending JPS5694834A (en) 1979-12-28 1979-12-28 A/d converter

Country Status (1)

Country Link
JP (1) JPS5694834A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6512900B2 (en) * 1999-12-06 2003-01-28 Fuji Xerox Co., Ltd. Image forming apparatus having alarm which indicates carrier solvent filter replacement or lack of solvent supply

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6512900B2 (en) * 1999-12-06 2003-01-28 Fuji Xerox Co., Ltd. Image forming apparatus having alarm which indicates carrier solvent filter replacement or lack of solvent supply

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