ES389354A1 - Perfeccionamientos en la construccion de amplificadores de transistores de varias etapas para audifonos con regulacion de amplificacion automatica. - Google Patents

Perfeccionamientos en la construccion de amplificadores de transistores de varias etapas para audifonos con regulacion de amplificacion automatica.

Info

Publication number
ES389354A1
ES389354A1 ES389354A ES389354A ES389354A1 ES 389354 A1 ES389354 A1 ES 389354A1 ES 389354 A ES389354 A ES 389354A ES 389354 A ES389354 A ES 389354A ES 389354 A1 ES389354 A1 ES 389354A1
Authority
ES
Spain
Prior art keywords
amplifier
hearing aid
voltage controlled
signal voltage
multiple stage
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
ES389354A
Other languages
English (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.)
Robert Bosch Elektronik GmbH
Original Assignee
Robert Bosch Elektronik GmbH
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 Robert Bosch Elektronik GmbH filed Critical Robert Bosch Elektronik GmbH
Publication of ES389354A1 publication Critical patent/ES389354A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/14—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control
    • H03G9/16—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control incorporating negative feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
ES389354A 1970-03-20 1971-03-18 Perfeccionamientos en la construccion de amplificadores de transistores de varias etapas para audifonos con regulacion de amplificacion automatica. Expired ES389354A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702013365 DE2013365B2 (de) 1970-03-20 1970-03-20 Mehrstufiger transistorverstaerker fuer schwerhoerigengeraete

Publications (1)

Publication Number Publication Date
ES389354A1 true ES389354A1 (es) 1973-06-01

Family

ID=5765724

Family Applications (1)

Application Number Title Priority Date Filing Date
ES389354A Expired ES389354A1 (es) 1970-03-20 1971-03-18 Perfeccionamientos en la construccion de amplificadores de transistores de varias etapas para audifonos con regulacion de amplificacion automatica.

Country Status (7)

Country Link
US (1) US3764745A (es)
AT (1) AT304661B (es)
CH (1) CH509719A (es)
DE (1) DE2013365B2 (es)
DK (1) DK139210B (es)
ES (1) ES389354A1 (es)
NL (1) NL7017607A (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250646B2 (es) * 1972-10-16 1977-12-26
DE2316939B2 (de) * 1973-04-04 1978-06-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrische Hörhilfeschaltung
US3818149A (en) * 1973-04-12 1974-06-18 Shalako Int Prosthetic device for providing corrections of auditory deficiencies in aurally handicapped persons
US3920931A (en) * 1974-09-25 1975-11-18 Jr Paul Yanick Hearing aid amplifiers employing selective gain control circuits
DE2456445A1 (de) * 1974-11-29 1976-08-12 Jobst Prof Dr Fricke Schaltungseinrichtung zum verstaerken elektroakustischer signale
DE2707609A1 (de) * 1977-02-22 1978-08-24 Licentia Gmbh In seiner verstaerkung steuerbarer wechselspannungsverstaerker
US4118604A (en) * 1977-09-06 1978-10-03 Paul Yanick Loudness contour compensated hearing aid having ganged volume, bandpass filter, and compressor control
US4220931A (en) * 1978-05-12 1980-09-02 Northern Telecom Systems Corporation Composite video automatic gain control amplifier
US4179669A (en) * 1978-06-05 1979-12-18 Bose Corporation Amplifying and equalizing
JPS5857199U (ja) * 1981-10-13 1983-04-18 リオン株式会社 補聴器
US4689818A (en) * 1983-04-28 1987-08-25 Siemens Hearing Instruments, Inc. Resonant peak control
CA1240028A (en) * 1983-10-25 1988-08-02 Harvey A. Dillon Hearing aid amplification method and apparatus
US4799028A (en) * 1986-07-02 1989-01-17 Hughes Aircraft Company Zero phase shift active microwave oscillators with resistive feedback in field effect transistor amplifiers
US4790018A (en) * 1987-02-11 1988-12-06 Argosy Electronics Frequency selection circuit for hearing aids
US5131046A (en) * 1989-11-03 1992-07-14 Etymotic Research Inc. High fidelity hearing aid amplifier
CH681126A5 (es) * 1990-10-02 1993-01-15 Phonak Ag
US5285502A (en) * 1992-03-31 1994-02-08 Auditory System Technologies, Inc. Aid to hearing speech in a noisy environment
US5406633A (en) * 1992-11-03 1995-04-11 Auditory System Technologies, Inc. Hearing aid with permanently adjusted frequency response
US7181297B1 (en) 1999-09-28 2007-02-20 Sound Id System and method for delivering customized audio data
US6944474B2 (en) * 2001-09-20 2005-09-13 Sound Id Sound enhancement for mobile phones and other products producing personalized audio for users
US20080170731A1 (en) * 2007-01-12 2008-07-17 Siemens Hearing Instruments Inc. Hearing Aid Momentary Switch Or Joystick As A Multifunction Acoustic Control
US10986454B2 (en) 2014-01-06 2021-04-20 Alpine Electronics of Silicon Valley, Inc. Sound normalization and frequency remapping using haptic feedback
US8767996B1 (en) 2014-01-06 2014-07-01 Alpine Electronics of Silicon Valley, Inc. Methods and devices for reproducing audio signals with a haptic apparatus on acoustic headphones
US8977376B1 (en) 2014-01-06 2015-03-10 Alpine Electronics of Silicon Valley, Inc. Reproducing audio signals with a haptic apparatus on acoustic headphones and their calibration and measurement
TWI558098B (zh) * 2014-09-01 2016-11-11 絡達科技股份有限公司 具有抑制射頻訊號干擾功能的音頻放大裝置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2148030A (en) * 1936-07-25 1939-02-21 Rca Corp Automatic tone control system
US2262846A (en) * 1939-09-15 1941-11-18 Rca Corp Automatic audio tone control circuit
US2388590A (en) * 1942-06-29 1945-11-06 Rca Corp Combined volume and selectivity control device
NL234187A (es) * 1958-12-12
US3098199A (en) * 1962-02-01 1963-07-16 Texas Insturments Inc Automatic gain control circuit
US3313885A (en) * 1963-05-21 1967-04-11 William R Aiken Combined tone control and volume expander arrangement
DE1285549B (de) * 1965-02-24 1968-12-19 Sony Corp Automatische Verstaerkungsregelung
US3497621A (en) * 1967-06-19 1970-02-24 Louis W Erath Audio reproduction system with low frequency compensation
US3581223A (en) * 1969-04-30 1971-05-25 Hc Electronics Inc Fast response dynamic gain control circuit

Also Published As

Publication number Publication date
US3764745A (en) 1973-10-09
AT304661B (de) 1973-01-25
NL7017607A (es) 1971-09-22
CH509719A (de) 1971-06-30
DE2013365B2 (de) 1972-08-03
DK139210B (da) 1979-01-08
DE2013365A1 (de) 1971-09-30

Similar Documents

Publication Publication Date Title
ES389354A1 (es) Perfeccionamientos en la construccion de amplificadores de transistores de varias etapas para audifonos con regulacion de amplificacion automatica.
GB1346233A (en) Single volume control for multi-channel audio systems
GB944682A (en) Improvements in or relating to multi-stage variable-gain transistor amplifiers
ES295716A1 (es) Dispositivo amplificador
ES382017A1 (es) Un dispositivo de amplificador diferencial.
GB952904A (en) Improvements in or relating to amplifiers
GB640920A (en) Improvements in or relating to amplifier and repeater arrangements with automatic gain control
GB853672A (en) Improvements in or relating to transistor amplifiers
GB1164380A (en) Improvements relating to Hearing Aids for the Hard-of-Hearing.
GB936629A (en) Improvements in and relating to amplifiers employing transistors
GB1149742A (en) Electric signal amplifiers
GB543414A (en) Improvements in sound recording amplifier circuits
ES347473A1 (es) Un sistema de amplificacion.
GB1044461A (en) Improvements in and relating to transistor amplifiers
GB765398A (en) Improvements in or relating to transistor circuits having variable amplification
GB974065A (en) Improvements in amplifier circuits
US3123778A (en) Wolters
GB923428A (en) Circuit arrangement for controlling the amplification in a transistor amplifier stage
US3242436A (en) Audio volume compressor circuit in an amplifier circuit
GB884459A (en) Improvements in or relating to transistor amplifiers
GB1158846A (en) Improvements in or relating to Hearing Aids
JPS57171811A (en) Variable attenuating circuit
GB329747A (en) Improvements in thermionic or like amplifiers
GB1313919A (en) Image intensifier
GB739342A (en) Circuit arrangement for audio frequency amplifiers with forward-acting gain control