GB1057771A - Improvements in hearing aids - Google Patents

Improvements in hearing aids

Info

Publication number
GB1057771A
GB1057771A GB404664A GB404664A GB1057771A GB 1057771 A GB1057771 A GB 1057771A GB 404664 A GB404664 A GB 404664A GB 404664 A GB404664 A GB 404664A GB 1057771 A GB1057771 A GB 1057771A
Authority
GB
United Kingdom
Prior art keywords
range
signals
mixer
frequencies
filters
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.)
Expired
Application number
GB404664A
Inventor
Jean Claude Lafon
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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 Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Priority to GB404664A priority Critical patent/GB1057771A/en
Publication of GB1057771A publication Critical patent/GB1057771A/en
Expired 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
    • H04R25/353—Frequency, e.g. frequency shift or compression

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)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

1,057,771. Hearing aids. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Jan. 30, 1964 [Feb. 14, 1963], No. 4046/64. Headings H4J and H4R. In a hearing aid device at least one alternating voltage having a constant frequency in the range 350 to 1000 c/s. is amplitude modulated by signals within two frequency bands, one band extending from 1500 to 3500 c/s. and the other band having its lower limit within the range 4500 to 6000 c/s. and its upper limit within the range 7000 to 8000 c/s. One embodiment (Fig. 2) comprises a microphone 1, a preamplifier 2 and two filters 3 1 and 3 2 . Filter 3 1 passes only frequencies of 1500 to 3500 c/s. and filter 32 passes only frequencies of 4500 (or 6000) to 7000 (or 8000) c/s. Device 4 amplifies and ascertains the amplitude of the filtered signals. A source 5 produces a sinusoidal voltage of constant frequency within the range 350 to 1000 c/s. An amplifier 6 is provided for amplitude modulating the sinusoidal voltage in accordance with the curve forming the envelope of the output of filters 3 1 and 3 2 . The modulated voltage, after amplification in an amplifier 7, is applied to an earphone 8. Preferably a low-pass filter 9 having a cut-off frequency of 1000 c/s. is connected to a mixer 10 1 to which the output of amplifier 6 is also connected. In a second embodiment (Fig. 3, not shown) separate devices 4 1 and 4 2 deal with the signals from filters 3 1 and 3 2 respectively. Two amplifiers 6 1 and 6 2 are provided, energized by two distinct sources 5 1 and 5 2 each producing a sinusoidal voltage of constant frequency within the range 350 to 1000 c/s., the frequencies being different from each other. Amplitude modulated signals at the outputs of amplifiers 6 1 and 6 2 are mixed in a mixer 11 before being applied to the mixer 10. Miniaturized circuits including semi-conductors may be used.
GB404664A 1963-02-14 1964-01-30 Improvements in hearing aids Expired GB1057771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB404664A GB1057771A (en) 1963-02-14 1964-01-30 Improvements in hearing aids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR924885 1963-02-14
GB404664A GB1057771A (en) 1963-02-14 1964-01-30 Improvements in hearing aids

Publications (1)

Publication Number Publication Date
GB1057771A true GB1057771A (en) 1967-02-08

Family

ID=8797106

Family Applications (1)

Application Number Title Priority Date Filing Date
GB404664A Expired GB1057771A (en) 1963-02-14 1964-01-30 Improvements in hearing aids

Country Status (7)

Country Link
US (1) US3385937A (en)
BE (1) BE643118A (en)
CH (1) CH398700A (en)
DE (1) DE1261169B (en)
DK (1) DK135140B (en)
GB (1) GB1057771A (en)
NL (1) NL6401211A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1537596B1 (en) * 1967-11-14 1970-09-03 Michel Copel Method and circuit arrangement for improving the intelligibility of frequency-distorted speech

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1205569A (en) * 1966-10-10 1970-09-16 E M I E L E C T R O N I C S Ca Improvements in or relating to stethoscopes
US3531595A (en) * 1966-10-31 1970-09-29 Michael S Demaree Method and apparatus for the testing and treatment of hearing deficiencies
DE1762492C3 (en) * 1967-12-28 1973-11-22 Emanuele Prof. Dr.-Ing. Biondi Process and circuit for making the human voice audible for the severely hard of hearing
GB1340105A (en) * 1971-06-08 1973-12-12 Nat Res Dev Aids for deaf persons
JPS5250646B2 (en) * 1972-10-16 1977-12-26
DE7302446U (en) * 1973-01-23 1973-06-28 Hueber & Co Hearing aid for those who are difficult to hear or have a hearing impairment
DE2316939B2 (en) * 1973-04-04 1978-06-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electric hearing aid circuit
JPS52125251A (en) * 1976-02-23 1977-10-20 Bio Communication Res Electric filter and method of designing same
US4051331A (en) * 1976-03-29 1977-09-27 Brigham Young University Speech coding hearing aid system utilizing formant frequency transformation
US4220160A (en) * 1978-07-05 1980-09-02 Clinical Systems Associates, Inc. Method and apparatus for discrimination and detection of heart sounds
DE2844979C2 (en) * 1978-10-16 1989-08-31 Juval Dr.-Ing. 8000 München Mantel Hearing aid
DE3016128C2 (en) * 1979-03-08 1982-08-12 Siemens AG, 1000 Berlin und 8000 München Process for generating acoustic speech signals that are understandable for the extremely hard of hearing (provide optimal speech intelligibility) and device for carrying out this process
DE2908999C2 (en) * 1979-03-08 1982-06-09 Siemens AG, 1000 Berlin und 8000 München Method for generating acoustic speech signals which are understandable for the extremely hard of hearing and device for carrying out this method
US4403118A (en) * 1980-04-25 1983-09-06 Siemens Aktiengesellschaft Method for generating acoustical speech signals which can be understood by persons extremely hard of hearing and a device for the implementation of said method
US4419544A (en) * 1982-04-26 1983-12-06 Adelman Roger A Signal processing apparatus
US4366349A (en) * 1980-04-28 1982-12-28 Adelman Roger A Generalized signal processing hearing aid
US4611596A (en) * 1980-10-14 1986-09-16 Purdue Research Foundation Sensory prostheses
US4393275A (en) * 1981-09-30 1983-07-12 Beltone Electronics Corporation Hearing aid with controllable wide range of frequency response
DE3333776A1 (en) * 1983-09-19 1985-04-18 Siemens AG, 1000 Berlin und 8000 München METHOD AND DEVICE FOR TRANSMITTING ACOUSTIC INFORMATION AS A FEELABLE VIBRATION
IL70153A0 (en) * 1983-11-07 1984-02-29 Navot Technology Ltd Audiotactile communication system
US4628907A (en) * 1984-03-22 1986-12-16 Epley John M Direct contact hearing aid apparatus
DE3782959T2 (en) * 1986-04-01 1993-06-24 Matsushita Electric Ind Co Ltd LOW FREQUENCY TOEN GENERATOR.
FR2598909B1 (en) * 1986-05-23 1988-08-26 Franche Comte Universite IMPROVEMENTS ON HEARING AID DEVICES
US5303306A (en) * 1989-06-06 1994-04-12 Audioscience, Inc. Hearing aid with programmable remote and method of deriving settings for configuring the hearing aid
US5844984A (en) * 1992-03-19 1998-12-01 Pan Communications, Inc. Two-way communications earset with filter
US6272360B1 (en) 1997-07-03 2001-08-07 Pan Communications, Inc. Remotely installed transmitter and a hands-free two-way voice terminal device using same
US6577739B1 (en) 1997-09-19 2003-06-10 University Of Iowa Research Foundation Apparatus and methods for proportional audio compression and frequency shifting
US7139404B2 (en) 2001-08-10 2006-11-21 Hear-Wear Technologies, Llc BTE/CIC auditory device and modular connector system therefor
US7110562B1 (en) * 2001-08-10 2006-09-19 Hear-Wear Technologies, Llc BTE/CIC auditory device and modular connector system therefor
WO2007000161A1 (en) * 2005-06-27 2007-01-04 Widex A/S Hearing aid with enhanced high frequency reproduction and method for processing an audio signal
US8553897B2 (en) 2009-06-09 2013-10-08 Dean Robert Gary Anderson Method and apparatus for directional acoustic fitting of hearing aids
US9101299B2 (en) 2009-07-23 2015-08-11 Dean Robert Gary Anderson As Trustee Of The D/L Anderson Family Trust Hearing aids configured for directional acoustic fitting
DE102010041643B4 (en) * 2010-09-29 2014-01-30 Siemens Medical Instruments Pte. Ltd. Hearing aid for frequency compression
US8855342B2 (en) 2010-09-29 2014-10-07 Siemens Medical Instruments Pte. Ltd. Hearing aid device for frequency compression
DE102010041640B4 (en) * 2010-09-29 2014-01-30 Siemens Medical Instruments Pte. Ltd. Hearing aid for frequency compression
JP5778778B2 (en) * 2010-12-08 2015-09-16 ヴェーデクス・アクティーセルスカプ Hearing aid and improved sound reproduction method
US8942397B2 (en) * 2011-11-16 2015-01-27 Dean Robert Gary Anderson Method and apparatus for adding audible noise with time varying volume to audio devices
US10142743B2 (en) * 2016-01-01 2018-11-27 Dean Robert Gary Anderson Parametrically formulated noise and audio systems, devices, and methods thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1537596B1 (en) * 1967-11-14 1970-09-03 Michel Copel Method and circuit arrangement for improving the intelligibility of frequency-distorted speech

Also Published As

Publication number Publication date
DE1261169B (en) 1968-02-15
DK135140C (en) 1977-08-08
DK135140B (en) 1977-03-07
US3385937A (en) 1968-05-28
CH398700A (en) 1966-03-15
BE643118A (en) 1964-05-15
NL6401211A (en) 1964-08-17

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