CH439399A - Appareil acoustique pour sourd, à réglage automatique de l'amplification - Google Patents

Appareil acoustique pour sourd, à réglage automatique de l'amplification

Info

Publication number
CH439399A
CH439399A CH841166A CH841166A CH439399A CH 439399 A CH439399 A CH 439399A CH 841166 A CH841166 A CH 841166A CH 841166 A CH841166 A CH 841166A CH 439399 A CH439399 A CH 439399A
Authority
CH
Switzerland
Prior art keywords
deaf
acoustic device
amplification adjustment
automatic amplification
automatic
Prior art date
Application number
CH841166A
Other languages
English (en)
Inventor
Guy Dr Perdoncini
Erich Dr Jucker
Lehmann Andre
Original Assignee
Portescap Le Porte
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 Portescap Le Porte filed Critical Portescap Le Porte
Priority to CH841166A priority Critical patent/CH439399A/fr
Priority to DE19671512743 priority patent/DE1512743A1/de
Priority to FR13021844A priority patent/FR1522158A/fr
Priority to NL6706460A priority patent/NL6706460A/xx
Priority to GB2182867A priority patent/GB1164380A/en
Publication of CH439399A publication Critical patent/CH439399A/fr

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
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • 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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/35—Electric hearing aids using translation techniques
    • H04R25/356—Amplitude, e.g. amplitude shift or compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
CH841166A 1966-06-09 1966-06-09 Appareil acoustique pour sourd, à réglage automatique de l'amplification CH439399A (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH841166A CH439399A (fr) 1966-06-09 1966-06-09 Appareil acoustique pour sourd, à réglage automatique de l'amplification
DE19671512743 DE1512743A1 (de) 1966-06-09 1967-04-17 Akustisches Geraet mit automatischer Verstaerkungsregelung
FR13021844A FR1522158A (fr) 1966-06-09 1967-05-03 Appareil acoustique à réglage automatique de l'amplification
NL6706460A NL6706460A (fr) 1966-06-09 1967-05-09
GB2182867A GB1164380A (en) 1966-06-09 1967-05-11 Improvements relating to Hearing Aids for the Hard-of-Hearing.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH841166A CH439399A (fr) 1966-06-09 1966-06-09 Appareil acoustique pour sourd, à réglage automatique de l'amplification

Publications (1)

Publication Number Publication Date
CH439399A true CH439399A (fr) 1967-07-15

Family

ID=4339906

Family Applications (1)

Application Number Title Priority Date Filing Date
CH841166A CH439399A (fr) 1966-06-09 1966-06-09 Appareil acoustique pour sourd, à réglage automatique de l'amplification

Country Status (5)

Country Link
CH (1) CH439399A (fr)
DE (1) DE1512743A1 (fr)
FR (1) FR1522158A (fr)
GB (1) GB1164380A (fr)
NL (1) NL6706460A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995224A (en) * 1975-04-30 1976-11-30 Rca Corporation Fast automatic gain control circuit with adjustable range
FR2522451B1 (fr) * 1982-03-01 1988-10-14 Audibel Perfectionnement au circuit de controle automatique de gain d'un systeme d'amplification a transistors et appareil de correction auditive equipe d'un tel circuit

Also Published As

Publication number Publication date
DE1512743A1 (de) 1969-08-07
NL6706460A (fr) 1967-12-11
GB1164380A (en) 1969-09-17
FR1522158A (fr) 1968-04-19

Similar Documents

Publication Publication Date Title
CH398700A (fr) Dispositif de prothèse auditive
NL151486B (nl) Smoorinrichting.
FR1504375A (fr) Dispositif de ventilation pour moissonneuse-batteuse
FR1435601A (fr) Dispositif de réglage automatique de la lumination pour appareil de prise de vues
CH439399A (fr) Appareil acoustique pour sourd, à réglage automatique de l'amplification
NL154415B (nl) Verstelinrichting voor zit-ligstoelen.
FR1495810A (fr) Dispositif perfectionné pour mesurer le point d'écoulement
FR93504E (fr) Dispositif de réglage de la lumination pour appareil de prise de vues.
FR1541506A (fr) Dispositif de maintien à dépression avec soupape pour prothèses dentaires
NL149353B (nl) Microfooninrichting.
FR1491257A (fr) Dispositif télescopique, notamment pour canne à pêche
FR1340322A (fr) Appareil pour le tirage de cheminées
CH441933A (de) Zusatzapparat an Drehautomat
FR1530687A (fr) Appareil de réglage automatique
NL153757B (nl) Maai-inrichting.
FR1472933A (fr) Dispositif de haut-parleur
FR1425464A (fr) Applique pour cartes postales et similaires
CA722424A (en) Vaccinating device
ES114468Y (es) Dispositivo sonoro.
CA665552A (en) Milk flow measuring device
ES115729Y (es) Dispositivo de articulacion.
FR1472698A (fr) Appareil de réglage automatique
AU447195B2 (en) Vibrating device
ES115337Y (es) Dispositivo aprovechador de paja menuda.
AU292909B2 (en) Improved h. f. coupling device