CH439399A - Appareil acoustique pour sourd, à réglage automatique de l'amplification - Google Patents
Appareil acoustique pour sourd, à réglage automatique de l'amplificationInfo
- 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
Links
- 206010011878 Deafness Diseases 0.000 title 1
- 230000003321 amplification Effects 0.000 title 1
- 238000003199 nucleic acid amplification method Methods 0.000 title 1
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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- 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)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Control Of Amplification And Gain Control (AREA)
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 (xx) | 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 (xx) |
DE (1) | DE1512743A1 (xx) |
FR (1) | FR1522158A (xx) |
GB (1) | GB1164380A (xx) |
NL (1) | NL6706460A (xx) |
Families Citing this family (2)
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 |
-
1966
- 1966-06-09 CH CH841166A patent/CH439399A/fr unknown
-
1967
- 1967-04-17 DE DE19671512743 patent/DE1512743A1/de active Pending
- 1967-05-03 FR FR13021844A patent/FR1522158A/fr not_active Expired
- 1967-05-09 NL NL6706460A patent/NL6706460A/xx unknown
- 1967-05-11 GB GB2182867A patent/GB1164380A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL6706460A (xx) | 1967-12-11 |
FR1522158A (fr) | 1968-04-19 |
GB1164380A (en) | 1969-09-17 |
DE1512743A1 (de) | 1969-08-07 |
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