CH532876A - Hearing aid - Google Patents

Hearing aid

Info

Publication number
CH532876A
CH532876A CH1016470A CH1016470A CH532876A CH 532876 A CH532876 A CH 532876A CH 1016470 A CH1016470 A CH 1016470A CH 1016470 A CH1016470 A CH 1016470A CH 532876 A CH532876 A CH 532876A
Authority
CH
Switzerland
Prior art keywords
hearing aid
hearing
aid
Prior art date
Application number
CH1016470A
Other languages
German (de)
Inventor
Schoeps Karl Ing Dr
Original Assignee
Schoeps Karl Ing Dr
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 Schoeps Karl Ing Dr filed Critical Schoeps Karl Ing Dr
Publication of CH532876A publication Critical patent/CH532876A/en

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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/402—Arrangements for obtaining a desired directivity characteristic using contructional means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • 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
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/456—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback mechanically

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
CH1016470A 1969-07-29 1970-07-06 Hearing aid CH532876A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691938435 DE1938435B2 (en) 1969-07-29 1969-07-29 Hearing aid

Publications (1)

Publication Number Publication Date
CH532876A true CH532876A (en) 1973-01-15

Family

ID=5741216

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1016470A CH532876A (en) 1969-07-29 1970-07-06 Hearing aid

Country Status (6)

Country Link
CH (1) CH532876A (en)
DE (1) DE1938435B2 (en)
FR (1) FR2053232B1 (en)
GB (1) GB1296137A (en)
NL (1) NL7004267A (en)
SE (1) SE370484B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407815B (en) * 1990-07-13 2001-06-25 Viennatone Gmbh HEARING AID
CH681411A5 (en) * 1991-02-20 1993-03-15 Phonak Ag
US5524056A (en) 1993-04-13 1996-06-04 Etymotic Research, Inc. Hearing aid having plural microphones and a microphone switching system

Also Published As

Publication number Publication date
GB1296137A (en) 1972-11-15
DE1938435A1 (en) 1971-02-11
FR2053232A1 (en) 1971-04-16
DE1938435B2 (en) 1974-05-02
NL7004267A (en) 1971-02-02
SE370484B (en) 1974-10-14
FR2053232B1 (en) 1976-09-24

Similar Documents

Publication Publication Date Title
BE745669A (en) PULSEREND VERBRANDINGSSYSTEEM
BE744024A (en) MANIPULATOR-SYNTHETIZER
BE749371A (en) SPECTROFOTOMETER
BE751497A (en) REJETEAUX
AT306980B (en) Aeroionizer
BE748247A (en) ELECTROCARDIOMETER
BE748852A (en) AUDIO-MONITOR
BE750639A (en) TETRAHYDROPYRANOLS
FI54445B (en) FOERFARANDE FOER ATT FOERBINDA FOLIESKIKT
BE750203A (en) ROTEREND PERFOREERAPPARAAT
BE747871A (en) WEEFMACHINE
BE750202A (en) ZELFKLEVEND SLUITETIKET
BE747783R (en) ELEKTROFOTOGRAFISCH
BE747903A (en) SPECTRAAL GESENSIBILISEERD LICHTGEVOELIG MATERIAAL
BE750756A (en) PHOTOCOMPOSER
BE747731A (en) AFHANKELIJK STROOM-TIJDRELAIS
FI54575C (en) SAETT ATT TEMPORAERT FAESTA PRESSPLAOTAR
BE747782A (en) FOTOGRAFISCH VEELLAGENKLEURENMATERIAAL
BE749943A (en) ZUURKAST
BE749878A (en) VOLUMEMETERS
CH532876A (en) Hearing aid
BE746342A (en) MEROCYANINE-KLEURSTOFFEN
AT324166B (en) SPORTSHOE
BE747776A (en) BIGOUDI
BE745468A (en) S-ALCOYL- (METHYL-HEXAHYDRO-1H-AZEPINE) -1-CARBOTHIOLATES

Legal Events

Date Code Title Description
PL Patent ceased