FR2276756B1 - - Google Patents

Info

Publication number
FR2276756B1
FR2276756B1 FR7421832A FR7421832A FR2276756B1 FR 2276756 B1 FR2276756 B1 FR 2276756B1 FR 7421832 A FR7421832 A FR 7421832A FR 7421832 A FR7421832 A FR 7421832A FR 2276756 B1 FR2276756 B1 FR 2276756B1
Authority
FR
France
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.)
Expired
Application number
FR7421832A
Other languages
French (fr)
Other versions
FR2276756A1 (en
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.)
AUDIBEL
Original Assignee
AUDIBEL
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 AUDIBEL filed Critical AUDIBEL
Priority to FR7421832A priority Critical patent/FR2276756A1/en
Publication of FR2276756A1 publication Critical patent/FR2276756A1/en
Application granted granted Critical
Publication of FR2276756B1 publication Critical patent/FR2276756B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
FR7421832A 1974-06-24 1974-06-24 Automatic level control for microphone amplifier - uses series transistor with its base polarisation varying with output Granted FR2276756A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7421832A FR2276756A1 (en) 1974-06-24 1974-06-24 Automatic level control for microphone amplifier - uses series transistor with its base polarisation varying with output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421832A FR2276756A1 (en) 1974-06-24 1974-06-24 Automatic level control for microphone amplifier - uses series transistor with its base polarisation varying with output

Publications (2)

Publication Number Publication Date
FR2276756A1 FR2276756A1 (en) 1976-01-23
FR2276756B1 true FR2276756B1 (en) 1980-04-25

Family

ID=9140426

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7421832A Granted FR2276756A1 (en) 1974-06-24 1974-06-24 Automatic level control for microphone amplifier - uses series transistor with its base polarisation varying with output

Country Status (1)

Country Link
FR (1) FR2276756A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522451B1 (en) * 1982-03-01 1988-10-14 Audibel IMPROVEMENT IN THE AUTOMATIC GAIN CONTROL CIRCUIT OF A TRANSISTOR AMPLIFICATION SYSTEM AND HEARING CORRECTION APPARATUS PROVIDED WITH SUCH A CIRCUIT

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1161002A (en) * 1966-02-21 1969-08-13 Royal Industries Improvements in and relating to Hearing Aids
AT324460B (en) * 1973-11-21 1975-09-10 Viennatome Hoergerate Produkti HEARING AID CONTROL

Also Published As

Publication number Publication date
FR2276756A1 (en) 1976-01-23

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Legal Events

Date Code Title Description
ST Notification of lapse