US3862379A - Headphone construction for interpreter translator arrangements - Google Patents

Headphone construction for interpreter translator arrangements Download PDF

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Publication number
US3862379A
US3862379A US37789773A US3862379A US 3862379 A US3862379 A US 3862379A US 37789773 A US37789773 A US 37789773A US 3862379 A US3862379 A US 3862379A
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Grant
Patent type
Prior art keywords
transducer
switch
housing
headphone
spring
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 - Lifetime
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Inventor
Ernst Pless
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AKG Acoustics GmbH
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AKG Acoustics GmbH
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041Mechanical or electronic switches, or control elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008Earpieces of the supra-aural or circum-aural type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/033Headphones for stereophonic communication
    • H04R5/0335Earpiece support, e.g. headbands or neckrests

Abstract

A headphone which is usable particularly along with a plurality of other headphones includes a transducer which is connected through a switch to the source of current. The switch provides a means for automatically turning the transducer either on or off. In one embodiment the switch includes a mercury switch which when oriented in an inactive or nonoperative position, ensures that the transducer is turned off and in another position in which operation normally takes place, will ensure that the transducer is turned on. Another embodiment includes a spring operated switch control which is operated when the earphone, for example attached to a headband, is positioned on the head of a user. Such a switch may be spring actuated or may include a member which is displaceable when the resilient cushion for the earpiece of the earphone is compressed.

Description

Unite States atent Pless 1 Jan. 21, 1975 I HEADPHONE CONSTRUCTION FOR Primary Examiner-William C. Cooper INTERPRETER TRANSLATOR Attorney, Agent, or FirmMcGlew and Tuttle ARRANGEMENTS [75] Inventor: Ernst Pless, Vienna, Austria ABSTRACT [73] Assi nee: AKG Akustische u. Kino-Gerate g Gesellschafl mbflfl Vienna Austria A headphone which is usable particularly along with a plurality of other headphones includes a transducer [22] Filed: July 10, 1973 which is connected through a switch to the source of [211 App] NO 377 897 current. The switch provides a means for automatically turning the transducer either on or off. In one embodiment the switch includes a mercury switch Foreign Application Priority Data which when oriented in an inactive or nonoperative July 11, 1972 Austria A 5948/72 position, ensures tha th transdu r is turned off and in another position in which operation normally takes U-S- Cl- R place ensure that the transducer is turned n An- [51] Int. Cl. H04m 1/02, H04m l/05 other embodiment includes a Spring Operated Switch Fleld of Search 2 B, W ontrol is operated when the earphone for example attached to a headband, is positioned on the References Cited head of a user. Such a switch may be spring actuated UNITED STATES PATENTS or may include a member which is displaceable when 1,386,744 8/1921 van Lynden 179/1 7 the resilient Cushion for the earpiece of earphone 2,899,499 8/1959 Eichwald 179/156 is presse FOREIGN PATENTS OR APPLICATIONS 1,062,672 3/1967 Great Britain 179/2 B 602,063 7/1960 Canada 179/167 3 Claims, 4 Drawing Figures l2 l0 v o l8 J 3 Patented Jan. 21, 1975 FIG.3

HEADPHONE CONSTRUCTION. FOR INTERPRETER TRANSLATOR ARRANGEMENTS BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates in general to a construction of earphones and, in particular to a new and useful earphone having switch means for turning the transducer to an off position whenever the earphone is not in use and which is particularly applicable for multi-earphone installations such as interpreter translator arrangements.

2. Description of the Prior Art The present invention is particularly applicable to the construction of a headphone which is adapted to use either for interpreters or translators in a multiheadphone installation such as would be the case in language schools and in speech clinics where there are a plurality of headphones arranged for operation in a relatively confined space. In such arrangements headphones are employed in great numbers and in many installations a large number of them which are connected to the amplifier output are not employed at any given time but are simply lying idle on a table or a desk. The ones that are not used are in a situation such that they radiate freely the sound they produce. They thus produce a proper sound that can be dis ignated as twitter. Such a twitter appears due to the fact that the headphones which are not used do not have a close coupling connection between the transducer diaphragm and the operators ear and therefore the diaphragm is not loaded by the ear impedance and it is in a position to vibrate in its resonance frequencies undamped so as to produce non-linear distortions and to radiate high tones. This phenomena is particularly present when a great number of headphones are not employed and the noise they produce creates a considerable disturbance.

SUMMARY OF THE INVENTION The invention provides a headphone which will remain mute when it is not employed. For this purpose the headphone includes a selfoperating switching device which depends upon the position of the headphone at any particular time and which will act to switch the headphone off whenever the headphone is not in an operative position.

In one embodiment of the invention the switching device comprises a mercury switch which when oriented in an operative position, will be connected to the electrical connection and to the transducer in which in a non-operative position will disconnect the transducer from the current supply.

In accordance with another embodiment of the invention, the switch includes a spring loaded switch member which when the earphone is in a position of operation, will cause the connection of the transducer but will disconnect the transducer when it is not. This function can be attained most simply by arranging the transducer housing so that it is axially shiftable so that by applying pressure of the springy headband of a headset, the switch will operate to connect the transducer member to the current supply. The axial shiftability of the transducer can be attained, in the best manner, by locating it in an elastic, springy earpiece in such a manner that when the headphone isput on, a pressure is exerted on the transducer to cause it to shift. This shifting movement of the transducer causes actuation of the switch. The changover position of the switch can be made very small so that a slight shifting movement of the transducer is sufficient to actuate the switch device. A simple on-off switch arranged in series electrically and connected to the electro-acoustic transducer will suffice. If the impedance for the amplifier output has to remain at least constant, then it is advisable to provide a changover switch in the housing which switches an ohmic equivalent resistor into the circuit when the headphone is not utilized.

Accordingly, it is an object of the invention to provide a headphone which includes a switch connected to an electroacoustic transducer and which operates to turn the transducer off whenever the headphone is not utilized.

A further object of the invention is to provide a headphone which includes a switch such as a mercury switch or a spring actuated switch which is effective to turn off the transducer whenever the headphone is not operated and which, for example, may be turned on when the headphone is positioned over the head of the wearer, such as by the compression of the headpiece over a persons ear. I

A further object of the invention, is to provide a headphone construction which is simple in design, rugged in construction and economical to manufacture.

For an understanding of the principles of the invention, reference is made to the following description of typical embodiments thereof as illustrated in the accompanying drawing.

BRIEF DESCRIPTION OF THE DRAWINGS In the Drawings:

FIG. 1 is a transverse sectional view of a headphone constructed in accordance with the invention;

FIG. 2 is a partial transverse sectional view and partial elevational view of a headset having an earphone similar to that shown in FIG. 1;

FIG. 3 is a transverse sectional view of another embodiment of the invention; and

FIG. 4 is a transverse sectional view of still another embodiment of the invention.

GENERAL DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings in particular, the invention embodied therein comprises in FIG. 1, a headphone in the form of a single earphone which is designed so that it can be suspended on the persons ear by means of an annular ear clip 1. In this embodiment the transducer 3 is arranged within a housing 2 and it is operated when it is connected electrically to a current supply through a mercury switch 5 having switch contacts 6. In this embodiment, a mercury switch dependent upon the position of the headphone is indicated since the applying pressure is too small to actuate a springloaded contact for switching the transducer either on or off. In the operated position, shown in FIG. 1, the mercury switch is operated to connect the transducer 3 for use. The transducer 3 is an electro-acoustic transducer which is contained in the headphone housing 2 at a location in which it protrudes lightly toward the band clip 1. It is surrounded by a soft foam rubber ring 4 which is in a location which will be pressed against the ear when the band is positioned therearound. When the headphone is not in use, the metallic mercury within the mercury switch will not produce an electrical current between the contacts 6 so that the transducer 3 will be turned off. In the embodiment shown the switch is a simple on-off switch, but further contacts may be provided in order to carry out other distinctive functions.

In the double headphone set shown in FIG. 2, the mercury switch 5 is provided which is accomodated within a housing 7, and which is connected to the acoustic transducer 3. In such an arrangement it is not necessary to mount the switch 5 into both headphone housings 7, because even in the case of stereo operation a single switch is sufficient in the common return circuit for putting the transducer out of operation.

In the embodiment shown in FIG. 3, there is a switching arrangement which responds to pressure. The necessary pressure is created when putting on the headphone by the spring headband 8 which strives to press the earpieces against the wearers ears. In the inside of the headphone housing 7 are provided electrical contact springs 9 that are designed similar to relay contacts. One of the two contact springs 9 is fixed while the other is movable and is connected through an actuating member 18 with the transducer 3. The transducer 3 is fixed with its ear-side end in a disk 11 which is made, for example, of soft plastic or rubber material or which may comprise a metal diaphragm which is covered with an ear cushion 12. For supporting the elastic force of the disk 11, a spring arrangement can also be provided at the rear end of the transducer. It is easy to see that when the headphone is put on, contact springs 9 will touch each other and switch the transducer into the current circuit. Only a simple on-off switch is necessary, but the switch arrangement can be provided with more contact springs which enable the switch to have several functions if desired.

In the embodiment shown in FIG. 4, a transducer 3 is connected through a rigid contacting member 18 to a microswitch 13 which is fixed to the inner side of a rear wall of a housing 14. The transducer is arranged so that it can be axially shifted. A foam material cushion 15 is put over the housing 14 and the transducer 3. A headband 16 is hinged to the housing 14 and it may be pivoted on a continuation 17 of the microswitch 13. When the headphone is put on, the elastic force of the band 16 presses against the foam material cushion between the ear and the headphone phone 14, causing the shifting of the transducer 3 by a short distance within the inner portion of the housing 14. This results in actuation of the switch 13 and thus a connection between the transducer and the amplifier output is established. When the headphone is taken off, the foam material of the cushion l5 expands and the transducer 3 returns to its resting position. Due to the rigid connection with the switch 13 through the actuating member 18, the current to the transducer is interrupted by the opening of the switch 13.

The invention is not limited to the use of a mercury type switch or any particular spring actuated switch. Other type switches such as gravity switches, ball switches and the like may be provided.

While specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied otherwise without departing from such principles.

What is claimed is:

l. A headphone construction particularly for language school and interpreter installations, comprising an earphone housing having an open ear facing end, a cushion affixed to said housing and extending outwardly around the open end, an electroacoustic transducer in said housing, an electrical current supply connected to said transducer and having an interrupter switch, said switch having means for disconnecting electrical current supply to said electroacoustic transducer and having first and second contact which are normally opened but which are engageable to actuate said circuit, a spring between said transducer and one of said contacts holding said transducer against said cushion and being displaceable by compression of said cushion when it is engaged with a users ear to urge said transducer against said spring and to cause said spring to move one of said contacts to engage the other of said contacts, and a head band on said housing for biasing said housing against a persons ear.

2. A headphone according to claim 1, wherein said switch comprises a microswitch, said microswitch containing said spring.

3. A headphone according to claim 1, including a diaphragm secured to the inside of said cushion around said opening of said housing and carrying said transducer.

Claims (3)

1. A headphone construction particularly for language school and interpreter installations, comprising an earphone housing having an open ear facing end, a cushion affixed to said housing and extending outwardly around the open end, an electroacoustic transducer in said housing, an electrical current supply connected to said transducer and having an interrupter switch, said switch having means for disconnecting electrical current supply to said electroacoustic transducer and having first and second contact which are normally opened but which are engageable to actuate said circuit, a spring between said transducer and one of said contacts holding said transducer against said cushion and being displaceable by compression Of said cushion when it is engaged with a user''s ear to urge said transducer against said spring and to cause said spring to move one of said contacts to engage the other of said contacts, and a head band on said housing for biasing said housing against a person''s ear.
2. A headphone according to claim 1, wherein said switch comprises a microswitch, said microswitch containing said spring.
3. A headphone according to claim 1, including a diaphragm secured to the inside of said cushion around said opening of said housing and carrying said transducer.
US3862379A 1972-07-11 1973-07-10 Headphone construction for interpreter translator arrangements Expired - Lifetime US3862379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT594872 1972-07-11

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JP (1) JPS4945715A (en)
DE (1) DE2333689A1 (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017797A (en) * 1975-02-05 1977-04-12 Columbia Research Laboratories, Inc. Headset for receiving and transmitting signals
FR2423206A1 (en) * 1978-04-17 1979-11-16 Philips Nv Earpiece chin
US4229829A (en) * 1978-03-16 1980-10-21 Grunwald Peter H Apparatus for wireless transmission of a teaching program in a classroom
US4829571A (en) * 1980-06-20 1989-05-09 Sony Corporation Headphone
US4924502A (en) * 1987-05-08 1990-05-08 Allen Clayton H Means for stabilizing sound pressure produced at the eardrum under an earpad
US5117464A (en) * 1991-03-08 1992-05-26 Jones Edward I Adjustable clip-on headphones
US5144678A (en) * 1991-02-04 1992-09-01 Golden West Communications Inc. Automatically switched headset
WO1999014982A1 (en) * 1997-09-18 1999-03-25 Akg Acoustics Gmbh Headphone with a switching-off device
US6002777A (en) * 1995-07-21 1999-12-14 Stethtech Corporation Electronic stethoscope
WO2000008894A1 (en) * 1998-08-03 2000-02-17 Adec & Partner Ag Infrared helmet
US20030086573A1 (en) * 2001-10-03 2003-05-08 Schobben Daniel Willem Elisabeth Method for reproducing sound signals and sound reproducing system
US20040086138A1 (en) * 2001-03-14 2004-05-06 Rainer Kuth Ear protection and method for operating a noise-emitting device
US20080192942A1 (en) * 2007-02-12 2008-08-14 Yamkovoy Paul G Method and apparatus for conserving battery power
US20080232604A1 (en) * 2007-03-23 2008-09-25 3M Innovative Properties Company Power management for medical sensing devices employing multiple sensor signal feature detection
US20090061905A1 (en) * 2007-08-31 2009-03-05 At&T Bls Intellectual Property, Inc. Determining Geographic Zone
WO2009030231A1 (en) * 2007-09-07 2009-03-12 Gn Netcom A/S A headphone comprising an ear cushion, an ear cushion mount comprising a flexible part and a speaker housing as well as a set of headphones and a headset
US20090149924A1 (en) * 2007-12-06 2009-06-11 Susan Lemons White Treatment of ear infection using hands-free blue/violet light device
US20090220118A1 (en) * 2006-03-08 2009-09-03 Logitech Europe S.A. Behind-the-head mounted personal audio set with adjustable earphone position
US20100056956A1 (en) * 2007-03-23 2010-03-04 Dufresne Joel R Modular electronic biosensor with interface for receiving disparate modules
US20100189276A1 (en) * 2007-07-25 2010-07-29 Andersen Bjoern Knud Monitoring of use status and automatic power management in medical devices
US20110164775A1 (en) * 2010-01-06 2011-07-07 Sennheiser Electronic Gmbh & Co. Kg Headphones and headset
US20110280412A1 (en) * 2010-05-17 2011-11-17 Hon Hai Precision Industry Co., Ltd. Earphone
US20120308067A1 (en) * 2011-06-01 2012-12-06 Wai Hung Ip Headphone 3D Hearing technology
US8761428B2 (en) 2005-02-16 2014-06-24 Logitech Europe S.A. Reversible behind-the-head mounted personal audio set with pivoting earphone
USRE44980E1 (en) * 2004-08-06 2014-07-01 Sony Computer Entertainment Inc. System and method for controlling states of a device
US8788274B1 (en) 2003-07-03 2014-07-22 Jose Estevan Guzman Language converter and transmitting system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1386744A (en) * 1917-07-16 1921-08-09 American Thermophone Company Telephone and microtelephone
US2899499A (en) * 1959-08-11 Eichwald

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899499A (en) * 1959-08-11 Eichwald
US1386744A (en) * 1917-07-16 1921-08-09 American Thermophone Company Telephone and microtelephone

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017797A (en) * 1975-02-05 1977-04-12 Columbia Research Laboratories, Inc. Headset for receiving and transmitting signals
US4229829A (en) * 1978-03-16 1980-10-21 Grunwald Peter H Apparatus for wireless transmission of a teaching program in a classroom
FR2423206A1 (en) * 1978-04-17 1979-11-16 Philips Nv Earpiece chin
US4829571A (en) * 1980-06-20 1989-05-09 Sony Corporation Headphone
US4924502A (en) * 1987-05-08 1990-05-08 Allen Clayton H Means for stabilizing sound pressure produced at the eardrum under an earpad
US5144678A (en) * 1991-02-04 1992-09-01 Golden West Communications Inc. Automatically switched headset
US5117464A (en) * 1991-03-08 1992-05-26 Jones Edward I Adjustable clip-on headphones
US6002777A (en) * 1995-07-21 1999-12-14 Stethtech Corporation Electronic stethoscope
WO1999014982A1 (en) * 1997-09-18 1999-03-25 Akg Acoustics Gmbh Headphone with a switching-off device
WO2000008894A1 (en) * 1998-08-03 2000-02-17 Adec & Partner Ag Infrared helmet
US6735306B1 (en) * 1998-08-03 2004-05-11 Heinz Rueegg Infrared helmet
US20040086138A1 (en) * 2001-03-14 2004-05-06 Rainer Kuth Ear protection and method for operating a noise-emitting device
US20030086573A1 (en) * 2001-10-03 2003-05-08 Schobben Daniel Willem Elisabeth Method for reproducing sound signals and sound reproducing system
US8788274B1 (en) 2003-07-03 2014-07-22 Jose Estevan Guzman Language converter and transmitting system
USRE44980E1 (en) * 2004-08-06 2014-07-01 Sony Computer Entertainment Inc. System and method for controlling states of a device
US8761428B2 (en) 2005-02-16 2014-06-24 Logitech Europe S.A. Reversible behind-the-head mounted personal audio set with pivoting earphone
US20090220118A1 (en) * 2006-03-08 2009-09-03 Logitech Europe S.A. Behind-the-head mounted personal audio set with adjustable earphone position
US20080192942A1 (en) * 2007-02-12 2008-08-14 Yamkovoy Paul G Method and apparatus for conserving battery power
US7983427B2 (en) 2007-02-12 2011-07-19 Bose Corporation Method and apparatus for conserving battery power
US8548174B2 (en) 2007-03-23 2013-10-01 3M Innovative Properties Company Modular electronic biosensor with interface for receiving disparate modules
US20100056956A1 (en) * 2007-03-23 2010-03-04 Dufresne Joel R Modular electronic biosensor with interface for receiving disparate modules
US20080232604A1 (en) * 2007-03-23 2008-09-25 3M Innovative Properties Company Power management for medical sensing devices employing multiple sensor signal feature detection
US8594339B2 (en) 2007-03-23 2013-11-26 3M Innovative Properties Company Power management for medical sensing devices employing multiple sensor signal feature detection
US20100189276A1 (en) * 2007-07-25 2010-07-29 Andersen Bjoern Knud Monitoring of use status and automatic power management in medical devices
US20090061905A1 (en) * 2007-08-31 2009-03-05 At&T Bls Intellectual Property, Inc. Determining Geographic Zone
WO2009030231A1 (en) * 2007-09-07 2009-03-12 Gn Netcom A/S A headphone comprising an ear cushion, an ear cushion mount comprising a flexible part and a speaker housing as well as a set of headphones and a headset
US20090149924A1 (en) * 2007-12-06 2009-06-11 Susan Lemons White Treatment of ear infection using hands-free blue/violet light device
US8295530B2 (en) * 2010-01-06 2012-10-23 Sennheiser Electronic Gmbh & Co. Kg Headphones and headset
US20110164775A1 (en) * 2010-01-06 2011-07-07 Sennheiser Electronic Gmbh & Co. Kg Headphones and headset
US8254593B2 (en) * 2010-05-17 2012-08-28 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Earphone
US20110280412A1 (en) * 2010-05-17 2011-11-17 Hon Hai Precision Industry Co., Ltd. Earphone
US20120308067A1 (en) * 2011-06-01 2012-12-06 Wai Hung Ip Headphone 3D Hearing technology

Also Published As

Publication number Publication date Type
JPS4945715A (en) 1974-05-01 application
DE2333689A1 (en) 1974-01-31 application

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