GB1253978A - Analogue signal processing system - Google Patents

Analogue signal processing system

Info

Publication number
GB1253978A
GB1253978A GB54996/68A GB5499668A GB1253978A GB 1253978 A GB1253978 A GB 1253978A GB 54996/68 A GB54996/68 A GB 54996/68A GB 5499668 A GB5499668 A GB 5499668A GB 1253978 A GB1253978 A GB 1253978A
Authority
GB
United Kingdom
Prior art keywords
current
equal
flow
output
nov
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.)
Expired
Application number
GB54996/68A
Inventor
Peter Colin Michael
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.)
Micro Consultants Ltd
Original Assignee
Micro Consultants 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 Micro Consultants Ltd filed Critical Micro Consultants Ltd
Priority to GB54996/68A priority Critical patent/GB1253978A/en
Publication of GB1253978A publication Critical patent/GB1253978A/en
Expired 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
    • 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
    • H03M1/34—Analogue value compared with reference values

Landscapes

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

Abstract

1,253,978. Analog/digital converter. MICRO CONSULTANTS Ltd. 11 Nov., 1969 [20 Nov., 1968], no. 54996/68. Heading G4H. In an analogue/digital converter of the type in which the unknown analogue input current I 0 is successively modified by subtracting reference currents I 1 , I 3 , I 5 a current detector detects the direction of flow of current after each modification and controls the application of a current I 2 (equal to I 1 ), I 4 (equal to I 3 ) if the flow is negative. Each detector also supplies a digital output bit in accordance with the direction of current flow. In the embodiment of Fig. 1 I 1 = 2I 3 = 4I 5 so that the output is binary coded. A binary coded output may also be obtained by using equal current sources and feeding the current through an amplifier of gain 2 before each modification (Fig. 4, not shown). The currents I 2 , I 4 are fed via transistor or diode switches controlled by the current detectors 1, 2 which are preferably differential amplifiers.
GB54996/68A 1968-11-20 1968-11-20 Analogue signal processing system Expired GB1253978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB54996/68A GB1253978A (en) 1968-11-20 1968-11-20 Analogue signal processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB54996/68A GB1253978A (en) 1968-11-20 1968-11-20 Analogue signal processing system

Publications (1)

Publication Number Publication Date
GB1253978A true GB1253978A (en) 1971-11-17

Family

ID=10472659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54996/68A Expired GB1253978A (en) 1968-11-20 1968-11-20 Analogue signal processing system

Country Status (1)

Country Link
GB (1) GB1253978A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427012A1 (en) * 1978-05-24 1979-12-21 Labo Electronique Physique BINARY ANALOGUE-DIGITAL CONVERTER
GB2145889A (en) * 1983-08-31 1985-04-03 British Aerospace Analog-to-digital conversion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427012A1 (en) * 1978-05-24 1979-12-21 Labo Electronique Physique BINARY ANALOGUE-DIGITAL CONVERTER
GB2145889A (en) * 1983-08-31 1985-04-03 British Aerospace Analog-to-digital conversion

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