JPS5775100A - Heaing aid - Google Patents

Heaing aid

Info

Publication number
JPS5775100A
JPS5775100A JP15113480A JP15113480A JPS5775100A JP S5775100 A JPS5775100 A JP S5775100A JP 15113480 A JP15113480 A JP 15113480A JP 15113480 A JP15113480 A JP 15113480A JP S5775100 A JPS5775100 A JP S5775100A
Authority
JP
Japan
Prior art keywords
mike
earphone
amplifier
prescribed frequency
sound band
Prior art date
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.)
Pending
Application number
JP15113480A
Other languages
Japanese (ja)
Inventor
Yasuo Sato
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15113480A priority Critical patent/JPS5775100A/en
Publication of JPS5775100A publication Critical patent/JPS5775100A/en
Pending 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
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics

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)

Abstract

PURPOSE:To eliminate harmful acoustic waves to resolve displeasure and pain of the user, by providing a means, which attenuates rapidly or cuts a sound band higher than a prescribed frequency, in or among respective main bodies of a mike, an amplifier, and an earphone. CONSTITUTION:A means which attenuates rapidly or cuts a high sound band part higher than several 100-several 1,000Hz out of sounds reaching earholes in accordance with a desire of the user is provided in or among respective main bodies of a mike 1, an amplfier 3, and an earphone 8 which constitute a hearing aid. That is, a felt or cloth is arranged on the outside of the mike 1, and a channel driver 4, a trap 5, etc. are inserted to the intermediate stage of the amplifier 3, thereby attenuating a prescribed frequency region. Further, a network 7 is connected to the output stage of the amplifier 3 to attenuate rapidly frequencies higher than a prescribed frequency, and the diaphragm of the earphone 8 is made from paper or the like to make the tone quality soft. Thus, harmful ultrasonic waves and the high sound band which is unnecessary practically are eliminated to resolve displeasure and pain such as earache and headache.
JP15113480A 1980-10-28 1980-10-28 Heaing aid Pending JPS5775100A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15113480A JPS5775100A (en) 1980-10-28 1980-10-28 Heaing aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15113480A JPS5775100A (en) 1980-10-28 1980-10-28 Heaing aid

Publications (1)

Publication Number Publication Date
JPS5775100A true JPS5775100A (en) 1982-05-11

Family

ID=15512105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15113480A Pending JPS5775100A (en) 1980-10-28 1980-10-28 Heaing aid

Country Status (1)

Country Link
JP (1) JPS5775100A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258999A (en) * 1988-08-24 1990-02-28 Rion Co Ltd Hearing aid
JPH08228400A (en) * 1995-11-21 1996-09-03 Rion Co Ltd Hearing aid
WO2004098232A1 (en) * 2003-04-28 2004-11-11 Oticon A/S Microphone, hearing aid with a microphone and inlet structure for a microphone
EP1657960A1 (en) * 2004-11-16 2006-05-17 Oticon A/S Method for detection of ultrasound in a listening device with two or more microphones, and listening device with two or more microphones
US7596230B2 (en) * 2004-11-17 2009-09-29 Oticon A/S Method for detection of ultrasound in a listening device with two or more microphones, and listening device with two or more microphones

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135503A (en) * 1973-04-28 1974-12-27
JPS5250646A (en) * 1975-10-22 1977-04-22 Fujitsu Ltd Interference evasion system of control memory

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135503A (en) * 1973-04-28 1974-12-27
JPS5250646A (en) * 1975-10-22 1977-04-22 Fujitsu Ltd Interference evasion system of control memory

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258999A (en) * 1988-08-24 1990-02-28 Rion Co Ltd Hearing aid
JPH0549160B2 (en) * 1988-08-24 1993-07-23 Rion Co
JPH08228400A (en) * 1995-11-21 1996-09-03 Rion Co Ltd Hearing aid
WO2004098232A1 (en) * 2003-04-28 2004-11-11 Oticon A/S Microphone, hearing aid with a microphone and inlet structure for a microphone
EP1657960A1 (en) * 2004-11-16 2006-05-17 Oticon A/S Method for detection of ultrasound in a listening device with two or more microphones, and listening device with two or more microphones
US7596230B2 (en) * 2004-11-17 2009-09-29 Oticon A/S Method for detection of ultrasound in a listening device with two or more microphones, and listening device with two or more microphones

Similar Documents

Publication Publication Date Title
US5117461A (en) Electroacoustic device for hearing needs including noise cancellation
US5001763A (en) Electroacoustic device for hearing needs including noise cancellation
CA1336295C (en) Sound reproducing apparatus
US5208867A (en) Voice transmission system and method for high ambient noise conditions
US5276740A (en) Earphone device
KR0158884B1 (en) Electro-acoustic transducer and sound reproducing system
CA1098450A (en) Small dimension low frequency folded exponential horn loudspeaker with unitary sound path and loudspeaker system including same
EP0333461A3 (en) Active acoustic attenuation system for higher order mode non-uniform sound field in a duct
TW376674B (en) Earphone
ATE63396T1 (en) METHODS AND DEVICES FOR REDUCING EXTERNAL NOISE GETTING TO THE EAR DRUM AND IMPROVING THE INtelligibility of ELECTROACOUSTIC MESSAGES.
US5164984A (en) Hands-free telephone assembly
WO2003030147A1 (en) Noise reduction apparatus
JPS5775100A (en) Heaing aid
JP2873088B2 (en) Apparatus for implementing language teaching methods
US2374090A (en) Apparatus for intensifying speech in the human vocal cavities
EP0040462A1 (en) Electroacoustical audible noise reducing apparatus
SU836652A1 (en) Noise suppressing device
JPH067397A (en) Soundproof ear cover
JPS57131195A (en) Noise preventing microphone device of band limiting type
US6246763B1 (en) Mobile telephone casing
TW202015037A (en) Filter structure for use in hearing aid and hearing aid having filter structure comprising a housing having an active filtering section in which a filter structure is arranged and a passive filtering section in which an audio signal processing module is disposed
KR850001816B1 (en) High frequency sound damper filter
US3796832A (en) Sound enhancing system
KR200329947Y1 (en) digital hearing aid shaped cap
JPS5755700A (en) Frequency-compression hearing aid