FR2285755A1 - Codeur-decodeur pour signaux numeriques - Google Patents

Codeur-decodeur pour signaux numeriques

Info

Publication number
FR2285755A1
FR2285755A1 FR7528340A FR7528340A FR2285755A1 FR 2285755 A1 FR2285755 A1 FR 2285755A1 FR 7528340 A FR7528340 A FR 7528340A FR 7528340 A FR7528340 A FR 7528340A FR 2285755 A1 FR2285755 A1 FR 2285755A1
Authority
FR
France
Prior art keywords
digital
expansion
analogue
signal
circuit
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
FR7528340A
Other languages
English (en)
Other versions
FR2285755B3 (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.)
Ericsson Australia Pty Ltd
Original Assignee
LM Ericsson Pty Ltd
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
Priority claimed from US05/506,777 external-priority patent/US4042921A/en
Application filed by LM Ericsson Pty Ltd filed Critical LM Ericsson Pty Ltd
Publication of FR2285755A1 publication Critical patent/FR2285755A1/fr
Application granted granted Critical
Publication of FR2285755B3 publication Critical patent/FR2285755B3/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
    • 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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Analogue/Digital Conversion (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
FR7528340A 1974-09-17 1975-09-16 Codeur-decodeur pour signaux numeriques Granted FR2285755A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/506,777 US4042921A (en) 1973-12-11 1974-09-17 Digital encoder/decoder

Publications (2)

Publication Number Publication Date
FR2285755A1 true FR2285755A1 (fr) 1976-04-16
FR2285755B3 FR2285755B3 (fr) 1979-06-29

Family

ID=24015973

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7528340A Granted FR2285755A1 (fr) 1974-09-17 1975-09-16 Codeur-decodeur pour signaux numeriques

Country Status (11)

Country Link
JP (1) JPS5156167A (fr)
BE (1) BE833490A (fr)
CA (1) CA1072684A (fr)
DE (1) DE2541476A1 (fr)
DK (1) DK414275A (fr)
FI (1) FI752580A (fr)
FR (1) FR2285755A1 (fr)
IT (1) IT1042619B (fr)
NL (1) NL7510928A (fr)
NO (1) NO753151L (fr)
SE (1) SE7510188L (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01157028U (fr) * 1988-04-21 1989-10-30

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098466A5 (fr) * 1969-10-16 1972-03-10 Ibm France
US3806806A (en) * 1972-11-20 1974-04-23 Bell Telephone Labor Inc Adaptive data modulator

Also Published As

Publication number Publication date
FI752580A (fr) 1976-03-18
BE833490A (fr) 1976-01-16
SE7510188L (sv) 1976-03-18
JPS5732527B2 (fr) 1982-07-12
DE2541476A1 (de) 1976-03-25
DK414275A (da) 1976-03-18
NL7510928A (nl) 1976-03-19
FR2285755B3 (fr) 1979-06-29
JPS5156167A (en) 1976-05-17
NO753151L (fr) 1976-03-18
CA1072684A (fr) 1980-02-26
IT1042619B (it) 1980-01-30

Similar Documents

Publication Publication Date Title
GB1504449A (en) Tion
ES8606963A1 (es) Un receptor de radio con demodulacion digital para senales en cuadratura.
IT1091439B (it) Procedimento e sistema di modulazione e demodulazione per trasmissione numerica
EP0143005A3 (en) Digital data converting methods and apparatus
ES425145A1 (es) Un metodo para convertir una senal de datos en codigo bina-rio en otra senal en codigo de dos impulsos con la misma po-laridad y otros dos con polaridad opuesta por cada bit.
FR2285755A1 (fr) Codeur-decodeur pour signaux numeriques
JPS6467764A (en) Waveform equalizing system and its device
ES8101827A1 (es) Conexion para la transmision de una serie binaria para transferir datos
DE3481963D1 (de) Schaltung zur regeneration von periodischen signalen.
ES549337A0 (es) Modem de interfase de lineas de abonados,para ser utilizado en un modulo de interfase de lineas de un sistema de teleco-municaciones
JPS5451343A (en) Code converter
GB1530632A (en) Digital voice signal transmission system
JPS6457825A (en) 4/5 code conversion system
GB1519058A (en) Signal wave transmission
JPS5413708A (en) Code conversion system
JPS57136845A (en) Coding and transfer system of information data
IT1206376B (it) Procedimento di codificazione mediante transizioni di informazioni binarie e dispositivi di codificazione e decodificazione corrispondente.
FR2400807A2 (fr) Procede de codage par transitions d'informations binaires et dispositifs de codage et de decodage correspondants
GB1250494A (fr)
GB1519779A (en) Apparatus for control of equipment via a single transmissions path
JPS54130111A (en) Coding system
JPS56160164A (en) Modulating method of digital signal
FR2281018A1 (fr) Modem en bande de base comportant en ligne un canal de transmission numerique a grande vitesse et un canal de transmission numerique a faible vitesse
JPS52152106A (en) Zero insersion bit reduction
GB996444A (en) Improvements in or relating to coding systems