DE3414331A1 - Circuit arrangement for increasing the volume in the case of dynamic transducers - Google Patents

Circuit arrangement for increasing the volume in the case of dynamic transducers

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Publication number
DE3414331A1
DE3414331A1 DE19843414331 DE3414331A DE3414331A1 DE 3414331 A1 DE3414331 A1 DE 3414331A1 DE 19843414331 DE19843414331 DE 19843414331 DE 3414331 A DE3414331 A DE 3414331A DE 3414331 A1 DE3414331 A1 DE 3414331A1
Authority
DE
Germany
Prior art keywords
circuit arrangement
volume
case
increasing
dynamic
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.)
Granted
Application number
DE19843414331
Other languages
German (de)
Other versions
DE3414331C2 (en
Inventor
Heinrich 8034 Germering Bayer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19843414331 priority Critical patent/DE3414331A1/en
Publication of DE3414331A1 publication Critical patent/DE3414331A1/en
Application granted granted Critical
Publication of DE3414331C2 publication Critical patent/DE3414331C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6016—Substation equipment, e.g. for use by subscribers including speech amplifiers in the receiver circuit
    • 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)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Set Structure (AREA)

Abstract

A circuit arrangement for increasing the volume in the case of dynamic receiver capsules (DW) of telephone sets for hearing-impaired telephone subscribers. It is the object of the present invention to demonstrate an effective hearing aid, particularly in the case of integrated telephones (IF). This object is achieved by a key (T), arranged on the handset body (HA), by means of which at least one passive component (resistor R) arranged between the telephone circuit (IF) and the receiver capsule (DW) is bypassed in order to increase the sensitivity. <IMAGE>

Description

Schaltungsanordnung zur Erhöhung der Lautstärke bei dyna-Circuit arrangement for increasing the volume with dynamic

mischen Wandlern Die Erfindung betrifft eine Schaltungsanordnung zur Erhöhung der Lautstärke bei dynamischen Hörkapseln von Fernsprechgeräten bei hörgeschädigten Fernsprechteilnehmern.mix converters The invention relates to a circuit arrangement for Increasing the volume of dynamic earphones in telephones for the hearing impaired Telephone subscribers.

Bei modernen integrierten Fernsprechern ist es möglich, durch geringfügige Modifikation der Beschaltung der IC's die Verstärkung auf der Hörerseite so zu erhöhen, daß eine dynamische Hörkapsel als Schwerhörigenhilfe verwendet werden kann. Moderne Piezowandler haben jedoch gegenüber dynamischen Wandlern etwa eine dreifach kleinere Empfindlichkeit. Um die Austauschbarkeit der verschiedenen Wandlertypen zu ermöglichen, wird zur Verringerung der Empfindlichkeit der dynamischen Hörkapsel dieser ein Widerstand vorgeschaltet.With modern integrated telephones it is possible through minor Modification of the circuitry of the IC's to increase the amplification on the listener side, that a dynamic earpiece can be used as a hearing aid. Modern Piezo transducers, however, are about three times smaller than dynamic transducers Sensitivity. In order to enable the interchangeability of the different converter types, a resistor is used to reduce the sensitivity of the dynamic earpiece upstream.

Es sind zwei Schwerhörigenhilfen bei Fernsprechern bekannt. Bei einer Ausführung ist ein spezieller Hörverstärker im Handapparatekörper vorgesehen, der vom Mikrofonstrom eines Linearmikrofons gespeist wird. Der Handapparatekörper weist zur Einschaltung der Schwerhörigenhilfe eine Taste auf.Two telephone aids for the hearing impaired are known. At a Execution, a special hearing amplifier is provided in the handset body, the is fed by the microphone stream of a linear microphone. The handset body has Press a button to switch on the hearing aid.

Bei einer anderen Ausführung ist eine Induktionsspule parallel zur Hörkapsel geschaltet. Über die Induktionsspule wird das Hörgerät induktiv über ein Magnetfeld angekoppelt.In another implementation, an induction coil is parallel to the Earpiece switched. The hearing aid is inductively via the induction coil Coupled magnetic field.

Diese bekannten Ausführungen können bei einem integrierten Fernsprecher nicht mehr angeschlossen werden, da keine zur Gleichstromspeisung des Mikrofons elektrische Versorgung vorhanden ist.These known designs can be used in an integrated telephone can no longer be connected as there is no direct current supply for the microphone electrical supply is available.

Aufgabe der Erfindung ist es, insbesondere bei integrierten Fernsprechern eine wirkungsvolle Schwerhörigenhilfe aufzuzeigen.It is the object of the invention, particularly in the case of integrated telephones to show an effective aid for the hearing impaired.

Die Aufgabe wird gemäß der Erfindung dadurch gelöst, daß durch eine am Handapparatekörper angeordnete Taste zumindest ein zwischen Fernsprecherschaltung und Hörkapsel angeordnetes passives Bauelement zur Erhöhung der Empfindlichkeit überbrückbar ist.The object is achieved according to the invention in that by a on the handset body arranged button at least one between the telephone circuit and a passive component arranged in an earpiece to increase the sensitivity can be bridged.

Wie bereits eingangs erwähnt, hat die dynamische Wandlerkapsel eine wesentlich höhere Empfindlichkeit als die piezoelektrische Wandlerkapsel.As already mentioned at the beginning, the dynamic transducer capsule has a significantly higher sensitivity than the piezoelectric transducer capsule.

Das vor der dynamischen Wandlerkapsel vorgeschaltete passive Bauelement, z. B. ein Widerstand beseitigt diesen Unterschied. Durch die Erfindung ist nun in einfacher Weise durch Tastendruck dieser Widerstand überbrückbar, wodurch die Empfindlichkeit der Kapsel um den Faktor 3 angehoben wird. Somit sind keine der eingangs beschriebenen bekannten Maßnahmen zur Schwerhörigenhilfe mehr notwendig. Der Handapparat ist außerdem an eine integrierte Fernsprecherschaltung anschließbar.The passive component upstream of the dynamic converter capsule, z. B. a resistor eliminates this difference. The invention is now in this resistance can be bridged easily by pressing a button, thereby increasing the sensitivity the capsule is raised by a factor of 3. Thus, none of the initially described known measures to help the hard of hearing are more necessary. The handset is also can be connected to an integrated telephone circuit.

Die Erfindung wird nun näher anhand einer Abbildung erläutert. Diese zeigt eine Schaltungsanordnung zur Erhöhung der Lautstärke bei dynamischen Wandlern.The invention will now be explained in more detail with reference to a figure. These shows a circuit arrangement for increasing the volume in dynamic converters.

Die Schaltung besteht aus einer integrierten Fernsprecherschaltung IF sowie mit dieser elektrisch verbundenen dynamischen Hörkapsel DW und einem Mikrofon M. In die Zu- leitung zum dynamischen Wandler ist ein ohmscher Widerstand R eingefügt, der durch die Taste T überbrückbar ist. Die Taste T und die Wandler DW und M sind im Handapparatekörper untergebracht.The circuit consists of an integrated telephone circuit IF as well as with this electrically connected dynamic earpiece DW and a microphone M. In the The line to the dynamic converter is an ohmic resistor R inserted, which can be bridged with the T key. The T key and the transducers DW and M are housed in the handset body.

Die Schwerhörigenhilfe ist durch Überbrücken des Widerstandes R einschaltbar. Außer der Lautstärke und der magnetischen Induktion der Koppel spule der Hörkapsel ändern sich keine Fernsprecherdaten, so daß die induktive Ankopplung eines Hörgerätes möglich ist. Die Rückhörbezugsdämpfung, die zwangsläufig mit der Lautstärke der Hörkapsel steigt, könnte durch einen Parallelwiderstand zum Mikrofon (ebenfalls einschaltbar durch Tastendruck) auf dem bei einem Normalfernsprecher üblichen Wert gehalten werden.The hearing aid can be switched on by bridging the resistor R. Except for the volume and the magnetic induction of the coupling coil of the earpiece do not change telephone data, so that the inductive coupling of a hearing aid is possible. The sideline reference attenuation, which inevitably increases with the volume of the Earpiece increases, could be due to a parallel resistance to the microphone (also can be switched on by pressing a button) to the value usual for a normal telephone being held.

3 Patentansprüche 1 Figur Bezuaszeichenliste IF Fernsprecherschaltung R Widerstand T Taste DW dynamische Hörkapsel M Mikrofon HA Handapparatekörper - Leerseite -3 claims 1 figure Bezuaszeichenliste IF telephone circuit R resistance T button DW dynamic earpiece M microphone HA handset body - Blank page -

Claims (3)

Patentansprüche Öl Schaltungsanordnung zur Erhöhung der Lautstärke bei dynamischen Hörkapseln (DW) von Fernsprechgeräten bei hörgeschädigten Fernsprechteilnehmern, d a d u r c h g e k e n n z e i c h n e t , daß durch eine am Handapparatekörper (HA) angeordnete Taste (T) zumindest ein zwischen Fernsprecherschaltung (IF) und Hörkapsel (DW) angeordnetes passives Bauelement (R) zur Erhöhung der Empfindlichkeit überbrückbar ist.Claims Oil circuit arrangement for increasing the volume in the case of dynamic earphones (DW) of telephones for hearing-impaired telephone subscribers, d u r c h e k e n n n z e i c h n e t that by one on the handset body (HA) arranged key (T) at least one between the telephone circuit (IF) and Passive component (R) arranged in an earpiece (DW) to increase sensitivity can be bridged. 2. Schaltungsanordnung nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß das passive Bauelement aus einem ohmschen Widerstand (R) besteht.2. Circuit arrangement according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the passive component consists of an ohmic resistor (R). 3. Schaltungsanordnung nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß durch Tastendruck zusätzlich zur Überbrückung des Widerstandes (R) ein weiterer Widerstand zum Mikrofon (M) parallel schaltbar ist.3. Circuit arrangement according to claim 1, d a d u r c h g e k e n n z e i c h n e t that by pressing a button in addition to bridging the resistance (R) another resistor can be connected in parallel to the microphone (M).
DE19843414331 1984-04-16 1984-04-16 Circuit arrangement for increasing the volume in the case of dynamic transducers Granted DE3414331A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843414331 DE3414331A1 (en) 1984-04-16 1984-04-16 Circuit arrangement for increasing the volume in the case of dynamic transducers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843414331 DE3414331A1 (en) 1984-04-16 1984-04-16 Circuit arrangement for increasing the volume in the case of dynamic transducers

Publications (2)

Publication Number Publication Date
DE3414331A1 true DE3414331A1 (en) 1985-10-17
DE3414331C2 DE3414331C2 (en) 1987-11-19

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DE19843414331 Granted DE3414331A1 (en) 1984-04-16 1984-04-16 Circuit arrangement for increasing the volume in the case of dynamic transducers

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241307A1 (en) * 1992-08-07 1994-02-10 Siemens Ag Telephone switching arrangement - has volume limiting resistor at output of electro=acoustic transducer to protect users ears.
WO2004077183A1 (en) * 2003-02-28 2004-09-10 Endress+Hauser Gmbh+Co. Kg Device and method for stabilising the voltage of a two-wire field bus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2820955B2 (en) * 1989-04-27 1998-11-05 株式会社リコー Network controller
DE29923019U1 (en) 1999-12-30 2000-04-20 auric Hörsysteme GmbH & Co. KG, 48429 Rheine Arrangement for switching a hearing aid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544027A (en) * 1948-07-16 1951-03-06 Raymond E King Hearing aid attachment for use on french type telephones
DE2259087A1 (en) * 1971-12-09 1973-06-14 Viennatone Hoergeraete TELEPHONE ADAPTER PLUGGED ON A TELEPHONE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544027A (en) * 1948-07-16 1951-03-06 Raymond E King Hearing aid attachment for use on french type telephones
DE2259087A1 (en) * 1971-12-09 1973-06-14 Viennatone Hoergeraete TELEPHONE ADAPTER PLUGGED ON A TELEPHONE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241307A1 (en) * 1992-08-07 1994-02-10 Siemens Ag Telephone switching arrangement - has volume limiting resistor at output of electro=acoustic transducer to protect users ears.
WO2004077183A1 (en) * 2003-02-28 2004-09-10 Endress+Hauser Gmbh+Co. Kg Device and method for stabilising the voltage of a two-wire field bus
DE10309125B4 (en) * 2003-02-28 2014-01-02 Endress + Hauser Gmbh + Co. Kg Device and method for voltage stabilization for a two-wire fieldbus

Also Published As

Publication number Publication date
DE3414331C2 (en) 1987-11-19

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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