FR2378401A1 - Procede et dispositif pour adapter un signal analogique en vue de son codage numerique dans un codeur ayant une plage de codage donnee - Google Patents

Procede et dispositif pour adapter un signal analogique en vue de son codage numerique dans un codeur ayant une plage de codage donnee

Info

Publication number
FR2378401A1
FR2378401A1 FR7701529A FR7701529A FR2378401A1 FR 2378401 A1 FR2378401 A1 FR 2378401A1 FR 7701529 A FR7701529 A FR 7701529A FR 7701529 A FR7701529 A FR 7701529A FR 2378401 A1 FR2378401 A1 FR 2378401A1
Authority
FR
France
Prior art keywords
encoder
signal
phase shift
amplifier circuit
gain amplifier
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
FR7701529A
Other languages
English (en)
French (fr)
Other versions
FR2378401B1 (enrdf_load_stackoverflow
Inventor
Henri Berard
Christian Gaubert
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.)
Nokia Inc
Original Assignee
Nokia 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 Nokia Inc filed Critical Nokia Inc
Priority to FR7701529A priority Critical patent/FR2378401A1/fr
Publication of FR2378401A1 publication Critical patent/FR2378401A1/fr
Application granted granted Critical
Publication of FR2378401B1 publication Critical patent/FR2378401B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
FR7701529A 1977-01-20 1977-01-20 Procede et dispositif pour adapter un signal analogique en vue de son codage numerique dans un codeur ayant une plage de codage donnee Granted FR2378401A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7701529A FR2378401A1 (fr) 1977-01-20 1977-01-20 Procede et dispositif pour adapter un signal analogique en vue de son codage numerique dans un codeur ayant une plage de codage donnee

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7701529A FR2378401A1 (fr) 1977-01-20 1977-01-20 Procede et dispositif pour adapter un signal analogique en vue de son codage numerique dans un codeur ayant une plage de codage donnee

Publications (2)

Publication Number Publication Date
FR2378401A1 true FR2378401A1 (fr) 1978-08-18
FR2378401B1 FR2378401B1 (enrdf_load_stackoverflow) 1980-02-15

Family

ID=9185700

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7701529A Granted FR2378401A1 (fr) 1977-01-20 1977-01-20 Procede et dispositif pour adapter un signal analogique en vue de son codage numerique dans un codeur ayant une plage de codage donnee

Country Status (1)

Country Link
FR (1) FR2378401A1 (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536620A1 (fr) * 1982-11-23 1984-05-25 Rca Corp Televiseur numerique avec convertisseur analogique-numerique ayant un gain multiplexe dans le temps
FR2544933A1 (fr) * 1983-04-22 1984-10-26 Philips Nv Procede et dispositif de reglage du coefficient d'amplification d'un amplificateur
EP0072144A3 (en) * 1981-07-31 1985-07-03 Shimadzu Corporation A-d converter for use in an electronic balance
US4540974A (en) * 1981-10-30 1985-09-10 Rca Corporation Adaptive analog-to-digital converter
FR2581492A1 (fr) * 1985-05-06 1986-11-07 Inovelf Sa Convertisseurs logarithmiques et leur application a la mesure de lumiere transmise
FR2606956A1 (fr) * 1986-11-14 1988-05-20 Radiotechnique Compelec Dispositif de conversion analogique-numerique comportant un dispositif de controle automatique de gain
FR2648262A1 (fr) * 1989-05-22 1990-12-14 Seikosha Kk Procedes et appareils d'enregistrement et de reproduction de signal sonore
EP0604746A3 (en) * 1992-11-23 1996-05-08 Nokia Technology Gmbh Circuit arrangement for expanding the virtual dynamic range of digital audio signal processor.
RU2144256C1 (ru) * 1992-03-13 2000-01-10 Моторола, Инк. Усилитель мощности с двойным режимом работы

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072144A3 (en) * 1981-07-31 1985-07-03 Shimadzu Corporation A-d converter for use in an electronic balance
US4540974A (en) * 1981-10-30 1985-09-10 Rca Corporation Adaptive analog-to-digital converter
FR2536620A1 (fr) * 1982-11-23 1984-05-25 Rca Corp Televiseur numerique avec convertisseur analogique-numerique ayant un gain multiplexe dans le temps
FR2544933A1 (fr) * 1983-04-22 1984-10-26 Philips Nv Procede et dispositif de reglage du coefficient d'amplification d'un amplificateur
FR2581492A1 (fr) * 1985-05-06 1986-11-07 Inovelf Sa Convertisseurs logarithmiques et leur application a la mesure de lumiere transmise
EP0201415A1 (fr) * 1985-05-06 1986-11-12 INOVELF, Société anonyme dite: Convertisseurs logarithmiques et leur application à la mesure de lumière transmise
FR2606956A1 (fr) * 1986-11-14 1988-05-20 Radiotechnique Compelec Dispositif de conversion analogique-numerique comportant un dispositif de controle automatique de gain
EP0271936A1 (fr) * 1986-11-14 1988-06-22 Philips Composants Dispositif de conversion analogique-numérique comportant un dispositif de contrôle automatique de gain
FR2648262A1 (fr) * 1989-05-22 1990-12-14 Seikosha Kk Procedes et appareils d'enregistrement et de reproduction de signal sonore
RU2144256C1 (ru) * 1992-03-13 2000-01-10 Моторола, Инк. Усилитель мощности с двойным режимом работы
EP0604746A3 (en) * 1992-11-23 1996-05-08 Nokia Technology Gmbh Circuit arrangement for expanding the virtual dynamic range of digital audio signal processor.

Also Published As

Publication number Publication date
FR2378401B1 (enrdf_load_stackoverflow) 1980-02-15

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Legal Events

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ST Notification of lapse