DK144169C - Tunghoereapparat med en tonefrekvensforstaerker - Google Patents

Tunghoereapparat med en tonefrekvensforstaerker

Info

Publication number
DK144169C
DK144169C DK360276A DK360276A DK144169C DK 144169 C DK144169 C DK 144169C DK 360276 A DK360276 A DK 360276A DK 360276 A DK360276 A DK 360276A DK 144169 C DK144169 C DK 144169C
Authority
DK
Denmark
Prior art keywords
frequency amplifier
hearing device
tone frequency
heavy hearing
heavy
Prior art date
Application number
DK360276A
Other languages
English (en)
Other versions
DK360276A (da
DK144169B (da
Inventor
A Eggert
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of DK360276A publication Critical patent/DK360276A/da
Publication of DK144169B publication Critical patent/DK144169B/da
Application granted granted Critical
Publication of DK144169C publication Critical patent/DK144169C/da

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H03G5/12—Manually-operated control in untuned amplifiers having semiconductor devices 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
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (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)
  • Amplifiers (AREA)
DK360276A 1975-08-13 1976-08-10 Tunghoereapparat med en tonefrekvensforstaerker DK144169C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19752536078 DE2536078B2 (de) 1975-08-13 1975-08-13 Schwerhoerigengeraet mit einem tonfrequenzverstaerker
DE2536078 1975-08-13

Publications (3)

Publication Number Publication Date
DK360276A DK360276A (da) 1977-02-14
DK144169B DK144169B (da) 1981-12-28
DK144169C true DK144169C (da) 1982-06-07

Family

ID=5953895

Family Applications (1)

Application Number Title Priority Date Filing Date
DK360276A DK144169C (da) 1975-08-13 1976-08-10 Tunghoereapparat med en tonefrekvensforstaerker

Country Status (6)

Country Link
AT (1) ATA454576A (da)
CH (1) CH595035A5 (da)
DE (1) DE2536078B2 (da)
DK (1) DK144169C (da)
GB (1) GB1541261A (da)
NL (1) NL7608970A (da)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2186195A (en) * 1937-12-24 1940-01-09 Radio Patents Corp Inverse feedback circuits
FR1225932A (fr) * 1958-10-22 1960-07-06 Procédé et appareillage pour examiner et pour compenser les déficiences auditiveset pour autres buts
NL261164A (nl) * 1960-02-15 1964-05-11 Etudes Et Brevets Mota Toestel voor gehoor-stem-aanpassing
FR1263511A (fr) * 1960-07-04 1961-06-09 Appareil de prothèse binauricualire pour déficients de l'ouïe, à ampli bi-canal
US3784750A (en) * 1972-02-25 1974-01-08 Shalako Resource Systems Apparatus and prosthetic device for providing electronic correction of auditory deficiencies for aurally handicapped persons
DE2231647C3 (de) * 1972-06-23 1981-08-13 Hans-Heinz Dipl.-Ing. 1000 Berlin Dorsch Verstärkerschaltungsanordnung für Tonfrequenzen
JPS5250646B2 (da) * 1972-10-16 1977-12-26
DE2316939B2 (de) * 1973-04-04 1978-06-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrische Hörhilfeschaltung
US3894195A (en) * 1974-06-12 1975-07-08 Karl D Kryter Method of and apparatus for aiding hearing and the like

Also Published As

Publication number Publication date
DK360276A (da) 1977-02-14
DE2536078A1 (de) 1977-02-17
DK144169B (da) 1981-12-28
ATA454576A (de) 1977-11-15
DE2536078B2 (de) 1977-06-08
CH595035A5 (da) 1978-01-31
NL7608970A (nl) 1977-02-15
GB1541261A (en) 1979-02-28

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Legal Events

Date Code Title Description
PBP Patent lapsed