SE370484B - - Google Patents

Info

Publication number
SE370484B
SE370484B SE458670A SE458670A SE370484B SE 370484 B SE370484 B SE 370484B SE 458670 A SE458670 A SE 458670A SE 458670 A SE458670 A SE 458670A SE 370484 B SE370484 B SE 370484B
Authority
SE
Sweden
Application number
SE458670A
Inventor
K Schoeps
Original Assignee
K Schoeps
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 K Schoeps filed Critical K Schoeps
Publication of SE370484B publication Critical patent/SE370484B/xx

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)
SE458670A 1969-07-29 1970-04-03 SE370484B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691938435 DE1938435B2 (de) 1969-07-29 1969-07-29 Hörgerät

Publications (1)

Publication Number Publication Date
SE370484B true SE370484B (xx) 1974-10-14

Family

ID=5741216

Family Applications (1)

Application Number Title Priority Date Filing Date
SE458670A SE370484B (xx) 1969-07-29 1970-04-03

Country Status (6)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407815B (de) * 1990-07-13 2001-06-25 Viennatone Gmbh Hörgerät
CH681411A5 (xx) * 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
DE1938435B2 (de) 1974-05-02
CH532876A (de) 1973-01-15
GB1296137A (xx) 1972-11-15
NL7004267A (xx) 1971-02-02
FR2053232A1 (xx) 1971-04-16
FR2053232B1 (xx) 1976-09-24
DE1938435A1 (de) 1971-02-11

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