CA954976A - Delta modulation information transmission system - Google Patents

Delta modulation information transmission system

Info

Publication number
CA954976A
CA954976A CA101,914A CA101914A CA954976A CA 954976 A CA954976 A CA 954976A CA 101914 A CA101914 A CA 101914A CA 954976 A CA954976 A CA 954976A
Authority
CA
Canada
Prior art keywords
transmission system
information transmission
modulation information
delta modulation
delta
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
CA101,914A
Other languages
English (en)
Other versions
CA101914S (en
Inventor
Thomas H. Daugherty
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
Application granted granted Critical
Publication of CA954976A publication Critical patent/CA954976A/en
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)
CA101,914A 1970-05-08 1971-01-04 Delta modulation information transmission system Expired CA954976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3576170A 1970-05-08 1970-05-08

Publications (1)

Publication Number Publication Date
CA954976A true CA954976A (en) 1974-09-17

Family

ID=21884636

Family Applications (1)

Application Number Title Priority Date Filing Date
CA101,914A Expired CA954976A (en) 1970-05-08 1971-01-04 Delta modulation information transmission system

Country Status (8)

Country Link
US (1) US3621396A (enExample)
JP (1) JPS5133712B1 (enExample)
BE (1) BE766698A (enExample)
CA (1) CA954976A (enExample)
DE (1) DE2122194A1 (enExample)
FR (1) FR2088448B1 (enExample)
GB (1) GB1306643A (enExample)
SE (1) SE359708B (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793564A (fr) * 1971-12-30 1973-04-16 Western Electric Co Convertisseur analogique-numerique
US3908181A (en) * 1972-07-17 1975-09-23 Nippon Electric Co Predictive conversion between self-correlated analog signal and corresponding digital signal according to digital companded delta modulation
JPS547525B2 (enExample) * 1973-12-28 1979-04-07
NL167563C (nl) * 1975-07-22 1981-12-16 Philips Nv Overdrachtstelsel voor signaaloverdracht door middel van deltamodulatie, alsmede zender en ontvanger voor een dergelijk stelsel.
US4123709A (en) * 1977-01-24 1978-10-31 Canadian Patents And Development Limited Adaptive digital delta modulation for voice transmission
US4462106A (en) * 1982-01-13 1984-07-24 Deltalab Research, Inc. Digital encoding circuitry
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
CN101499282B (zh) * 2008-02-03 2012-03-07 深圳艾科创新微电子有限公司 一种语音模数转换方法及装置
US9679291B2 (en) 2012-06-05 2017-06-13 Dove Voice Technologies Ltd. System and method of transmitting data over a voice channel
US9614710B2 (en) * 2013-12-05 2017-04-04 Dove Voice Technologies Ltd. Method and system for communication digital data on an analog signal

Family Cites Families (3)

* 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
NL159548B (nl) * 1968-03-21 1979-02-15 Philips Nv Overdrachtsstelsel voor signaaloverdracht door pulscodemodulatie, alsmede zender en ontvanger voor toepassing in een dergelijk stelsel.
US3568061A (en) * 1968-04-29 1971-03-02 Bell Telephone Labor Inc Bilateral digital transmission system with companding having same step size in each direction

Also Published As

Publication number Publication date
DE2122194A1 (de) 1971-11-18
FR2088448B1 (enExample) 1974-03-08
US3621396A (en) 1971-11-16
BE766698A (fr) 1971-10-01
JPS5133712B1 (enExample) 1976-09-21
FR2088448A1 (enExample) 1972-01-07
GB1306643A (en) 1973-02-14
SE359708B (enExample) 1973-09-03

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