FR2294591A1 - Circuit de modulation delta - Google Patents

Circuit de modulation delta

Info

Publication number
FR2294591A1
FR2294591A1 FR7532212A FR7532212A FR2294591A1 FR 2294591 A1 FR2294591 A1 FR 2294591A1 FR 7532212 A FR7532212 A FR 7532212A FR 7532212 A FR7532212 A FR 7532212A FR 2294591 A1 FR2294591 A1 FR 2294591A1
Authority
FR
France
Prior art keywords
modulation circuit
delta modulation
delta
circuit
modulation
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
FR7532212A
Other languages
English (en)
Other versions
FR2294591B1 (fr
Inventor
Michael A Patten
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 Business Machines Corp
Original Assignee
International Business Machines 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 Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2294591A1 publication Critical patent/FR2294591A1/fr
Application granted granted Critical
Publication of FR2294591B1 publication Critical patent/FR2294591B1/fr
Granted 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/341—Muting when no signals or only weak signals are present

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Amplifiers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR7532212A 1974-12-09 1975-10-13 Circuit de modulation delta Granted FR2294591A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US530903A US3911363A (en) 1974-12-09 1974-12-09 Delta modulation circuitry with automatic squelch and gain control

Publications (2)

Publication Number Publication Date
FR2294591A1 true FR2294591A1 (fr) 1976-07-09
FR2294591B1 FR2294591B1 (fr) 1977-12-16

Family

ID=24115458

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7532212A Granted FR2294591A1 (fr) 1974-12-09 1975-10-13 Circuit de modulation delta

Country Status (5)

Country Link
US (1) US3911363A (fr)
JP (1) JPS5175368A (fr)
DE (1) DE2545870A1 (fr)
FR (1) FR2294591A1 (fr)
GB (1) GB1490375A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4532495A (en) * 1978-02-24 1985-07-30 Votrax, Inc. Speech digitization system
FR2423093A1 (fr) * 1978-04-11 1979-11-09 Thomson Csf Systeme de transmission de signaux electriques a liaison optique et dispositif de controle automatique du gain d'une voie de reception connectee a cette liaison optique
FR2479621B1 (fr) * 1980-03-28 1988-03-04 Trt Telecom Radio Electr Dispositif de regulation automatique du niveau d'ecoute d'un poste telephonique
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
US5614904A (en) * 1995-03-09 1997-03-25 Ericsson Inc. Balance companded delta conversion for homodyne receiver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339495A1 (de) * 1972-08-25 1974-03-21 Ind Res Products Inc Deltamodulator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808366A (en) * 1972-12-11 1974-04-30 Gen Signal Corp Binary data transmission system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339495A1 (de) * 1972-08-25 1974-03-21 Ind Res Products Inc Deltamodulator

Also Published As

Publication number Publication date
US3911363A (en) 1975-10-07
FR2294591B1 (fr) 1977-12-16
DE2545870A1 (de) 1976-06-10
GB1490375A (en) 1977-11-02
JPS5175368A (fr) 1976-06-29

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Legal Events

Date Code Title Description
ST Notification of lapse