FR2143228B1 - - Google Patents

Info

Publication number
FR2143228B1
FR2143228B1 FR7222428A FR7222428A FR2143228B1 FR 2143228 B1 FR2143228 B1 FR 2143228B1 FR 7222428 A FR7222428 A FR 7222428A FR 7222428 A FR7222428 A FR 7222428A FR 2143228 B1 FR2143228 B1 FR 2143228B1
Authority
FR
France
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
FR7222428A
Other versions
FR2143228A1 (fr
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of FR2143228A1 publication Critical patent/FR2143228A1/fr
Application granted granted Critical
Publication of FR2143228B1 publication Critical patent/FR2143228B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • H03M3/022—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM]
    • H03M3/024—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM] using syllabic companding, e.g. continuously variable slope delta modulation [CVSD]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
FR7222428A 1971-06-22 1972-06-21 Expired FR2143228B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15558271A 1971-06-22 1971-06-22

Publications (2)

Publication Number Publication Date
FR2143228A1 FR2143228A1 (fr) 1973-02-02
FR2143228B1 true FR2143228B1 (fr) 1977-04-01

Family

ID=22555998

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7222428A Expired FR2143228B1 (fr) 1971-06-22 1972-06-21

Country Status (10)

Country Link
US (1) US3784922A (fr)
JP (1) JPS5529621B1 (fr)
BE (1) BE785123A (fr)
CA (1) CA994474A (fr)
DE (1) DE2230153C2 (fr)
FR (1) FR2143228B1 (fr)
GB (1) GB1371170A (fr)
IT (1) IT959180B (fr)
NL (1) NL176512C (fr)
SE (1) SE386334B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010422A (en) * 1970-10-15 1977-03-01 U.S. Philips Corporation Transmitter for forming non-linear pulse code modulated samples of analog signals by timing the integral of signal samples
US3882426A (en) * 1973-05-18 1975-05-06 Gen Electric Increment varying means for incremental encoder and decoder
US3922606A (en) * 1974-04-08 1975-11-25 Dicom Systems Adaptive delta modulation information transmission system
US3913016A (en) * 1974-04-18 1975-10-14 Bell Telephone Labor Inc Circuit for curtailing effects of bit errors in pulse coded transmission
US4123709A (en) * 1977-01-24 1978-10-31 Canadian Patents And Development Limited Adaptive digital delta modulation for voice transmission
US4201958A (en) * 1977-12-27 1980-05-06 Bell Telephone Laboratories, Incorporated Delta modulation which partitions input signal into variable-time segments that are iteratively encoded
US4386237A (en) * 1980-12-22 1983-05-31 Intelsat NIC Processor using variable precision block quantization
US4541103A (en) * 1983-02-22 1985-09-10 American Microsystems, Inc. Digitally controlled syllabic filter for a delta modulator
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
US6118399A (en) * 1998-03-30 2000-09-12 Silicon Laboratories, Inc. Coarse/fine switching on digital-to-analog conversion output
US6064326A (en) * 1998-03-30 2000-05-16 Silicon Laboratories, Inc. Analog-to-digital conversion overload detection and suppression
US6061009A (en) * 1998-03-30 2000-05-09 Silicon Laboratories, Inc. Apparatus and method for resetting delta-sigma modulator state variables using feedback impedance

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497624A (en) * 1966-08-16 1970-02-24 Bell Telephone Labor Inc Continuously compounded delta modulation
US3500441A (en) * 1967-10-12 1970-03-10 Bell Telephone Labor Inc Delta modulation with discrete companding
US3609551A (en) * 1968-06-28 1971-09-28 Bell Telephone Labor Inc Discrete-continuous companding for a digital transmission system
JPS4831139B1 (fr) * 1969-03-11 1973-09-27
US3628148A (en) * 1969-12-23 1971-12-14 Bell Telephone Labor Inc Adaptive delta modulation system

Also Published As

Publication number Publication date
NL176512B (nl) 1984-11-16
NL7208262A (fr) 1972-12-28
DE2230153C2 (de) 1982-03-18
CA994474A (en) 1976-08-03
NL176512C (nl) 1985-04-16
US3784922A (en) 1974-01-08
BE785123A (fr) 1972-10-16
JPS5529621B1 (fr) 1980-08-05
DE2230153A1 (de) 1972-12-28
FR2143228A1 (fr) 1973-02-02
SE386334B (sv) 1976-08-02
GB1371170A (en) 1974-10-23
IT959180B (it) 1973-11-10

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Legal Events

Date Code Title Description
ST Notification of lapse