DE3139088C2 - - Google Patents

Info

Publication number
DE3139088C2
DE3139088C2 DE19813139088 DE3139088A DE3139088C2 DE 3139088 C2 DE3139088 C2 DE 3139088C2 DE 19813139088 DE19813139088 DE 19813139088 DE 3139088 A DE3139088 A DE 3139088A DE 3139088 C2 DE3139088 C2 DE 3139088C2
Authority
DE
Germany
Prior art keywords
hearing aid
aid according
capacitor
collector
transistor
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
DE19813139088
Other languages
German (de)
English (en)
Other versions
DE3139088A1 (de
Inventor
Wolfgang 1000 Berlin De Schmidt
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 GmbH
Original Assignee
Robert Bosch 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 GmbH filed Critical Robert Bosch GmbH
Priority to DE19813139088 priority Critical patent/DE3139088A1/de
Publication of DE3139088A1 publication Critical patent/DE3139088A1/de
Application granted granted Critical
Publication of DE3139088C2 publication Critical patent/DE3139088C2/de
Granted 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
    • H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated

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)
  • Amplifiers (AREA)
DE19813139088 1981-10-01 1981-10-01 "hoergeraet" Granted DE3139088A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813139088 DE3139088A1 (de) 1981-10-01 1981-10-01 "hoergeraet"

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813139088 DE3139088A1 (de) 1981-10-01 1981-10-01 "hoergeraet"

Publications (2)

Publication Number Publication Date
DE3139088A1 DE3139088A1 (de) 1983-04-14
DE3139088C2 true DE3139088C2 (enrdf_load_stackoverflow) 1989-04-27

Family

ID=6143173

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813139088 Granted DE3139088A1 (de) 1981-10-01 1981-10-01 "hoergeraet"

Country Status (1)

Country Link
DE (1) DE3139088A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8424471D0 (en) * 1984-09-27 1984-10-31 Bordewijk L G Remote control system for hearing-aid
US4750207A (en) * 1986-03-31 1988-06-07 Siemens Hearing Instruments, Inc. Hearing aid noise suppression system
DE58906141D1 (de) * 1988-07-04 1993-12-16 Siemens Audiologische Technik Hörgerät.

Also Published As

Publication number Publication date
DE3139088A1 (de) 1983-04-14

Similar Documents

Publication Publication Date Title
DE3853232T2 (de) Antriebsapparat für dynamischen Lautsprecher.
DE3435728C2 (de) Transistorisierte Verstärker- und Mischer-Eingangsstufe
DE2718491C2 (de) Schaltungsanordnung zur Verstärkung der Signale eines elektromagnetischen Wandlers und zur Vorspannungserzeugung für den Wandler
DE2262089A1 (de) Schaltungsanordnung zur elektronischen frequenzgangbeeinflussung, insbesondere elektronischer klangeinsteller
DE3139088C2 (enrdf_load_stackoverflow)
DE69821197T2 (de) Differenzverstärker, integrierte schaltung und telefon
DE2744249C3 (enrdf_load_stackoverflow)
DE2946952C2 (enrdf_load_stackoverflow)
DE2931604C2 (de) Störgeräuschkompensierte Mikrofonschaltung
EP0446195B1 (de) Einkanal-Schaltung für ein Hörgerät
EP0013943A1 (de) Monolithisch integrierbare Tiefpass-Filterschaltung
DE3429508C2 (enrdf_load_stackoverflow)
DE2931482A1 (de) Abstimmbares aktives hochpassfilter fuer hoergeraete
DE2424335A1 (de) Leitungsanpassungsschaltung fuer einen mit einem tongenerator ausgeruesteten tondrucktastenwahlfernsprecher
DE3135249C2 (de) Aktiver Gleichrichter
DE3141420C2 (enrdf_load_stackoverflow)
EP0420343B1 (de) Schaltungsanordnung zur elektronischen Pegelsteuerung eines Tonsignals
DE1188658B (de) Transistorverstaerker mit einem geregelten Transistor und einem Regeltransistor
DE2165735C3 (de) Schaltungsanordnung zum wahlweisen Anheben oder Absenken der Lautstärke eines Frequenzbereiches in einem Niederfrequenzverstärker
DE3730501C2 (enrdf_load_stackoverflow)
EP0012876A1 (de) Aktives NF-Bandpassfilter
DE19524085C2 (de) Anpaßschaltung für eine Signalquelle
DE1274754B (de) Elektrisches Filter
DE3724262A1 (de) Schaltungsanordnung fuer kapazitive spannungsquellen hoher ausgangsimpedanz, insbesondere fuer kondensatormikrophone
DE4029418B4 (de) Schaltungsanordnung mit einem einstellbaren Amplitudenfrequenzgang für ein NF-Signal

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee