FR2301971A1 - DIGITAL-ANALOGUE CONVERTER FOR MIC SYSTEM - Google Patents

DIGITAL-ANALOGUE CONVERTER FOR MIC SYSTEM

Info

Publication number
FR2301971A1
FR2301971A1 FR7604733A FR7604733A FR2301971A1 FR 2301971 A1 FR2301971 A1 FR 2301971A1 FR 7604733 A FR7604733 A FR 7604733A FR 7604733 A FR7604733 A FR 7604733A FR 2301971 A1 FR2301971 A1 FR 2301971A1
Authority
FR
France
Prior art keywords
digital
analogue converter
mic system
mic
analogue
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.)
Granted
Application number
FR7604733A
Other languages
French (fr)
Other versions
FR2301971B1 (en
Inventor
Michael John Gingell
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2301971A1 publication Critical patent/FR2301971A1/en
Application granted granted Critical
Publication of FR2301971B1 publication Critical patent/FR2301971B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/68—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using pulse rate multipliers or dividers pulse rate multipliers or dividers per se
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step
    • H03M3/502—Details of the final digital/analogue conversion following the digital delta-sigma modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
    • H03M7/3042—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator being of the error feedback type, i.e. having loop filter stages in the feedback path only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/302—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M7/3024—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M7/3026—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a multiple bit one

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Networks Using Active Elements (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
FR7604733A 1975-02-20 1976-02-20 DIGITAL-ANALOGUE CONVERTER FOR MIC SYSTEM Granted FR2301971A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB715775A GB1444216A (en) 1975-02-20 1975-02-20 D/a converter for pcm

Publications (2)

Publication Number Publication Date
FR2301971A1 true FR2301971A1 (en) 1976-09-17
FR2301971B1 FR2301971B1 (en) 1982-07-23

Family

ID=9827708

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7604733A Granted FR2301971A1 (en) 1975-02-20 1976-02-20 DIGITAL-ANALOGUE CONVERTER FOR MIC SYSTEM

Country Status (19)

Country Link
JP (1) JPS51135354A (en)
AR (1) AR212019A1 (en)
AT (1) AT377397B (en)
AU (1) AU497002B2 (en)
BE (1) BE838666A (en)
BR (1) BR7601013A (en)
CA (1) CA1093697A (en)
CH (1) CH607456A5 (en)
DE (1) DE2605724C2 (en)
DK (1) DK148866C (en)
ES (1) ES445387A1 (en)
FR (1) FR2301971A1 (en)
GB (1) GB1444216A (en)
IN (1) IN143625B (en)
IT (1) IT1054867B (en)
NL (1) NL7601414A (en)
NO (1) NO143776C (en)
SE (1) SE410929B (en)
SU (1) SU1132805A3 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228205A (en) * 1975-08-28 1977-03-03 Sony Corp Station selector unit
GB1580447A (en) * 1976-12-01 1980-12-03 Post Office Code converters
NL7801909A (en) * 1978-02-21 1979-08-23 Philips Nv DEVICE FOR DECODING A SIGNAL CODED WITH ADAPTIVE DELTA MODULATION.
DE3021012C2 (en) * 1980-06-03 1985-08-22 ANT Nachrichtentechnik GmbH, 7150 Backnang Generalized interpolative method for the digital-analog conversion of PCM signals
US4313173A (en) * 1980-06-10 1982-01-26 Bell Telephone Laboratories, Incorporated Linear interpolator
GB2107949B (en) * 1981-10-15 1985-04-11 Standard Telephones Cables Ltd Digital decoder
DE3203012A1 (en) * 1982-01-29 1983-08-04 Siemens AG, 1000 Berlin und 8000 München Method and circuit arrangement for generating interpolation values between stored samples
US4786923A (en) * 1982-09-07 1988-11-22 Canon Kabushiki Kaisha Image recording system for image recording in response to signals entered from a recording information generating unit
USRE34660E (en) * 1983-07-29 1994-07-12 Burr-Brown Corporation Apparatus and methods for digital-to-analog conversion using modified LSB switching
EP0437301A3 (en) * 1983-07-29 1991-09-25 Burr-Brown Corporation Apparatus and methods for digital-to-analogue conversion
JPS60106229A (en) * 1983-11-14 1985-06-11 Rohm Co Ltd D/a converting circuit of digital pwm circuit
DE3535021A1 (en) * 1984-10-02 1986-04-17 Canon K.K., Tokio/Tokyo DIGITAL / ANALOG CONVERSION DEVICE
JPH0824267B2 (en) * 1984-10-02 1996-03-06 キヤノン株式会社 Data processing device
JPS6184117A (en) * 1984-10-02 1986-04-28 Canon Inc Digital-analog converter
JPS6184120A (en) * 1984-10-02 1986-04-28 Canon Inc Digital-analog converter
JPS6184119A (en) * 1984-10-02 1986-04-28 Canon Inc Digital-analog converter
JPS6184118A (en) * 1984-10-02 1986-04-28 Canon Inc Digital-analog converter
GB2183115A (en) * 1985-11-15 1987-05-28 Philips Electronic Associated Digital to analogue converter
DE3709207A1 (en) * 1987-02-28 1988-09-08 Standard Elektrik Lorenz Ag CIRCUIT ARRANGEMENT FOR CONVERTING DIGITAL TONE SIGNAL VALUES TO ANALOG TONE
GB9103777D0 (en) * 1991-02-22 1991-04-10 B & W Loudspeakers Analogue and digital convertors
GB2319411B (en) * 1996-11-18 2000-11-15 Fujitsu Ltd Modem signal transmission and/or reception apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532864A (en) * 1967-08-08 1970-10-06 United Aircraft Corp Linear interpolation function generation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110894A (en) * 1959-04-09 1963-11-12 Itt Digital-to-analog converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532864A (en) * 1967-08-08 1970-10-06 United Aircraft Corp Linear interpolation function generation

Also Published As

Publication number Publication date
CH607456A5 (en) 1978-12-29
NO760428L (en) 1976-08-23
AR212019A1 (en) 1978-04-28
AU497002B2 (en) 1978-11-16
BE838666A (en) 1976-08-18
ATA121476A (en) 1984-07-15
DK64976A (en) 1976-08-21
NL7601414A (en) 1976-08-24
CA1093697A (en) 1981-01-13
DK148866C (en) 1986-04-21
BR7601013A (en) 1976-09-14
FR2301971B1 (en) 1982-07-23
SE410929B (en) 1979-11-12
AU1110076A (en) 1977-08-18
JPS5542774B2 (en) 1980-11-01
IN143625B (en) 1978-01-07
ES445387A1 (en) 1977-06-16
DE2605724A1 (en) 1976-09-02
GB1444216A (en) 1976-07-28
JPS51135354A (en) 1976-11-24
NO143776B (en) 1980-12-29
IT1054867B (en) 1981-11-30
AT377397B (en) 1985-03-11
DE2605724C2 (en) 1986-01-23
DK148866B (en) 1985-10-28
NO143776C (en) 1981-04-08
SE7601666L (en) 1976-08-23
SU1132805A3 (en) 1984-12-30

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
TP Transmission of property
CA Change of address
ST Notification of lapse