FR2465369A1 - Circuit melangeur et circuit de commande de volume et de tonalite de signal a frequence sonore utilisant un circuit melangeur - Google Patents

Circuit melangeur et circuit de commande de volume et de tonalite de signal a frequence sonore utilisant un circuit melangeur Download PDF

Info

Publication number
FR2465369A1
FR2465369A1 FR7922885A FR7922885A FR2465369A1 FR 2465369 A1 FR2465369 A1 FR 2465369A1 FR 7922885 A FR7922885 A FR 7922885A FR 7922885 A FR7922885 A FR 7922885A FR 2465369 A1 FR2465369 A1 FR 2465369A1
Authority
FR
France
Prior art keywords
signal
control
input
electronic
signals
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
FR7922885A
Other languages
English (en)
French (fr)
Other versions
FR2465369B1 (enExample
Inventor
Jean-Claude Rufray
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7922885A priority Critical patent/FR2465369A1/fr
Publication of FR2465369A1 publication Critical patent/FR2465369A1/fr
Application granted granted Critical
Publication of FR2465369B1 publication Critical patent/FR2465369B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements in emitter-coupled or cascode amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices

Landscapes

  • Control Of Amplification And Gain Control (AREA)
FR7922885A 1979-09-13 1979-09-13 Circuit melangeur et circuit de commande de volume et de tonalite de signal a frequence sonore utilisant un circuit melangeur Granted FR2465369A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7922885A FR2465369A1 (fr) 1979-09-13 1979-09-13 Circuit melangeur et circuit de commande de volume et de tonalite de signal a frequence sonore utilisant un circuit melangeur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7922885A FR2465369A1 (fr) 1979-09-13 1979-09-13 Circuit melangeur et circuit de commande de volume et de tonalite de signal a frequence sonore utilisant un circuit melangeur

Publications (2)

Publication Number Publication Date
FR2465369A1 true FR2465369A1 (fr) 1981-03-20
FR2465369B1 FR2465369B1 (enExample) 1985-03-15

Family

ID=9229622

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7922885A Granted FR2465369A1 (fr) 1979-09-13 1979-09-13 Circuit melangeur et circuit de commande de volume et de tonalite de signal a frequence sonore utilisant un circuit melangeur

Country Status (1)

Country Link
FR (1) FR2465369A1 (enExample)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260951A (en) * 1964-01-21 1966-07-12 Northern Electric Co Fader amplifier utilizing mechanical gain control means
US4045748A (en) * 1975-12-19 1977-08-30 The Magnavox Company Audio control system
US4070633A (en) * 1977-03-10 1978-01-24 Motorola Inc. Remote controlled amplifier
GB2010616A (en) * 1977-12-15 1979-06-27 Philips Nv Gain controlled amplifier with variable frequency response

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260951A (en) * 1964-01-21 1966-07-12 Northern Electric Co Fader amplifier utilizing mechanical gain control means
US4045748A (en) * 1975-12-19 1977-08-30 The Magnavox Company Audio control system
US4070633A (en) * 1977-03-10 1978-01-24 Motorola Inc. Remote controlled amplifier
GB2010616A (en) * 1977-12-15 1979-06-27 Philips Nv Gain controlled amplifier with variable frequency response

Also Published As

Publication number Publication date
FR2465369B1 (enExample) 1985-03-15

Similar Documents

Publication Publication Date Title
FR2532806A1 (fr) Dispositif servant a convertir un signal electrique en un signal acoustique
FR2485295A1 (fr) Circuit de commande d'impedance par reaction
EP0376866B1 (fr) Dispositif de commande pour poste téléphonique "mains libres" fonctionnant en alternat
FR2719173A1 (fr) Appareil de communication à réglage du bruit.
FR2470482A1 (fr) Circuit multiplicateur reglable comportant un premier et un deuxieme transistors dans un montage differentiel a emetteurs couples
FR2478347A1 (fr) Systemes de commande de gain
FR2529411A1 (fr) Amplificateur de courant a circuit integre avec amelioration de la linearite et la precision du coefficient de multiplication du circuit
FR2621190A1 (fr) Amplificateur d'instrumentation a gain programmable
EP0564341B1 (fr) Circuit amplificateur vidéo à commande de gain et d'alignement
FR2576729A1 (fr) Egaliseur commande par tension
EP0052544A1 (fr) Circuit de commande de tonalité
FR2519174A1 (fr) Circuit de reduction de bruit
FR2622752A1 (fr) Circuit formant un filtre actif r.c. pour application coupe-bande
FR2462058A1 (fr) Amplificateur ayant une zone morte de largeur et position reglables
FR2471100A1 (fr) Circuit d'alimentation de ligne telephonique
FR2538648A1 (fr) Circuit de suppression de signal de microphone pour poste telephonique
FR2756681A1 (fr) Dephaseur commande en tension
EP0305301A1 (fr) Circuit compresseur de signal, en particulier pour appareil téléphonique
FR2479621A1 (fr) Dispositif de regulation automatique du niveau d'ecoute d'un poste telephonique
FR2664452A1 (fr) Dispositif de correction de gamma sur signal video analogique.
FR2560468A1 (fr) Dispositif de polarisation d'etage d'amplification a transistors et son utilisation dans un tel etage
FR2505595A1 (fr) Dispositif pour faire correspondre les caracteristiques de reglage du volume en courant continu de deux canaux audio
EP0782272B1 (fr) Circuit de traitement numérique à contrôle de gain
EP0065335B1 (fr) Dispositif destiné à éviter des oscillations entretenues gênantes dans un système bouclé et poste téléphonique à haut-parleur utilisant ce dispositif
FR2481541A1 (fr) Amplificateur a gain regle et a contre-reaction d'emetteur variable