BE823938A - Systeme de modulation delta adaptative - Google Patents

Systeme de modulation delta adaptative

Info

Publication number
BE823938A
BE823938A BE152003A BE152003A BE823938A BE 823938 A BE823938 A BE 823938A BE 152003 A BE152003 A BE 152003A BE 152003 A BE152003 A BE 152003A BE 823938 A BE823938 A BE 823938A
Authority
BE
Belgium
Prior art keywords
modulation system
delta modulation
adaptive delta
adaptive
modulation
Prior art date
Application number
BE152003A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE823938A publication Critical patent/BE823938A/xx

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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
BE152003A 1973-12-28 1974-12-27 Systeme de modulation delta adaptative BE823938A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP74312A JPS547525B2 (xx) 1973-12-28 1973-12-28

Publications (1)

Publication Number Publication Date
BE823938A true BE823938A (fr) 1975-04-16

Family

ID=11470384

Family Applications (1)

Application Number Title Priority Date Filing Date
BE152003A BE823938A (fr) 1973-12-28 1974-12-27 Systeme de modulation delta adaptative

Country Status (12)

Country Link
US (1) US3995218A (xx)
JP (1) JPS547525B2 (xx)
BE (1) BE823938A (xx)
CA (1) CA1052006A (xx)
CH (1) CH600688A5 (xx)
DE (1) DE2461581C3 (xx)
FR (1) FR2256591B1 (xx)
GB (1) GB1487410A (xx)
IT (1) IT1027188B (xx)
NL (1) NL163081C (xx)
SE (1) SE401068B (xx)
SU (1) SU620231A3 (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071825A (en) * 1976-05-17 1978-01-31 Rca Corporation Adaptive delta modulation system
US4151517A (en) * 1977-02-14 1979-04-24 Motorola, Inc. Closed loop companding ratio control for continuously variable slope delta modulation
US4110705A (en) * 1977-10-17 1978-08-29 International Business Machines Corporation Noise reduction method and apparatus for companded delta modulators
DE2849001C2 (de) * 1978-11-11 1982-10-07 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Netzwerk für adaptive Deltamodulation
US4264974A (en) * 1979-12-17 1981-04-28 International Business Machines Corporation Optimized digital delta modulation compander having truncation effect error recovery
DE3126380A1 (de) * 1981-07-03 1983-01-20 Texas Instruments Deutschland Gmbh, 8050 Freising "schaltungsanordnung zum umsetzen eines analogen wechselspannungssignals in ein digitales signal"
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
US4959852A (en) * 1987-10-19 1990-09-25 At&T Information Systems Inc. Telephone answering machine having solid state and magnetic tape storage for outgoing announcements
GB8804811D0 (en) * 1988-03-01 1988-03-30 Shaye Communications Ltd Waveform encoder/decoder
US7773358B2 (en) * 2005-05-18 2010-08-10 Texas Instruments Incorporated Output current control and overload protection in digital audio amplifiers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621396A (en) * 1970-05-08 1971-11-16 Bell Telephone Labor Inc Delta modulation information transmission system
JPS5027713B1 (xx) * 1970-06-22 1975-09-09
US3706944A (en) * 1970-12-02 1972-12-19 Bell Telephone Labor Inc Discrete adaptive delta modulator
US3723909A (en) * 1971-06-21 1973-03-27 J Condon Differential pulse code modulation system employing periodic modulator step modification

Also Published As

Publication number Publication date
NL163081B (nl) 1980-02-15
IT1027188B (it) 1978-11-20
NL163081C (nl) 1980-07-15
SE401068B (sv) 1978-04-17
NL7416915A (nl) 1975-07-01
DE2461581C3 (de) 1978-04-13
GB1487410A (en) 1977-09-28
FR2256591B1 (xx) 1979-06-01
SE7415992L (xx) 1975-06-30
JPS547525B2 (xx) 1979-04-07
DE2461581B2 (de) 1977-08-04
FR2256591A1 (xx) 1975-07-25
JPS5099209A (xx) 1975-08-06
SU620231A3 (ru) 1978-08-15
CH600688A5 (xx) 1978-06-30
US3995218A (en) 1976-11-30
DE2461581A1 (de) 1975-07-03
CA1052006A (en) 1979-04-03

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: FUJITSU LTD

Effective date: 19881231