EP2061277A2 - Hearing aid with controlled programming connector - Google Patents
Hearing aid with controlled programming connector Download PDFInfo
- Publication number
- EP2061277A2 EP2061277A2 EP08165919A EP08165919A EP2061277A2 EP 2061277 A2 EP2061277 A2 EP 2061277A2 EP 08165919 A EP08165919 A EP 08165919A EP 08165919 A EP08165919 A EP 08165919A EP 2061277 A2 EP2061277 A2 EP 2061277A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- terminal
- programming
- hearing
- potential
- signal processing
- 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.)
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Classifications
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- 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
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/556—External connectors, e.g. plugs or modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
-
- 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
- H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
- H04R25/603—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of mechanical or electronic switches or control elements
Definitions
- Hearing aids are portable hearing aids that are used to care for the hearing impaired.
- different types of hearing aids such as behind-the-ear hearing aids (BTE), hearing aid with external receiver (RIC: receiver in the canal) and in-the-ear hearing aids (IDO), e.g. Concha hearing aids or canal hearing aids (ITE, CIC).
- BTE behind-the-ear hearing aids
- RIC hearing aid with external receiver
- IDO in-the-ear hearing aids
- ITE canal hearing aids
- the hearing aids listed by way of example are worn on the outer ear or in the ear canal.
- bone conduction hearing aids, implantable or vibrotactile hearing aids are also available on the market. The stimulation of the damaged hearing takes place either mechanically or electrically.
- Hearing aids have in principle as essential components an input transducer, an amplifier and an output transducer.
- the input transducer is usually a sound receiver, z. As a microphone, and / or an electromagnetic receiver, for. B. an induction coil.
- the output transducer is usually used as an electroacoustic transducer, z. As miniature speaker, or as an electromechanical transducer, z. B. bone conduction, realized.
- the amplifier is usually integrated in a signal processing unit. This basic structure is in FIG. 1 shown using the example of a behind-the-ear hearing aid. In a hearing aid housing 1 for carrying behind the ear are one or more microphones 2 to Built-in sound recording from the environment.
- a signal processing unit 3 which is also integrated in the hearing aid housing 1, processes the microphone signals and amplifies them.
- the output signal of the signal processing unit 3 is transmitted to a loudspeaker or earpiece 4, which outputs an acoustic signal.
- the sound is optionally transmitted via a sound tube, which is fixed with an earmold in the ear canal, to the eardrum of the device carrier.
- the power supply of the hearing device and in particular the signal processing unit 3 is effected by a likewise integrated into the hearing aid housing 1 battery. 5
- the object of the present invention is to make the best possible use of the space available in a hearing device or to correspondingly reduce the hearing device.
- this object is achieved by a hearing device with a programming socket which has at least one first connection and one second connection, a signal processing device which is connected to the second connection, and a control device, wherein the control device taps off the potential of the first connection and the control device the signal processing means switches to a first function when the first terminal is at the predetermined potential and switches to a second function when the potential of the first terminal deviates from the predetermined potential.
- the programming socket has a third terminal which is connected to a fixed internal potential of the hearing device, wherein a coupling element is releasably connected on the one hand to the third terminal and on the other hand to the first terminal, whereby the predetermined potential is formed by the fixed internal potential.
- a coupling element is releasably connected on the one hand to the third terminal and on the other hand to the first terminal, whereby the predetermined potential is formed by the fixed internal potential.
- the fixed internal potential can be, for example, ground or a supply voltage. Both potentials are typically applied to each terminal of the programming socket, so that one of them can be transmitted to the third terminal as a coupling element, for example with the aid of a simple electrical conductor.
- the third connection can also be coupled, for example, by means of an ohmic resistance as a coupling element to ground or the supply voltage in the programming socket.
- a characteristic voltage can be applied to the third terminal which unequivocally indicates a specific function of the second port.
- a push-button is connected to the second connection.
- the programming input can also be used for a so-called user interface.
- a stylus device can be plugged onto the programming socket, which include the stylus and the coupling element, with which the first terminal is set to a specific potential. The stylus does not require a special place on the surface of the hearing and serves as a protection of the programming socket.
- the first connection for synchronization and the second connection for data input can serve in programming the hearing device.
- the synchronization terminal is used for terminal coding and the data input terminal is used for analog signal input, for example.
- FIG. 2 a programming jack shown in plan view. It usually has four contacts 11 to 14. In the plan view, the corresponding Lötfahen can be seen. In the example chosen, the first contact 11 serves as a VCC terminal, the second contact 12 as a ground terminal, the third contact 13 for data transfer (NData) and the fourth contact 14 for synchronization (NClock).
- NData data transfer
- NClock synchronization
- connection NData In order to be able to use the contacts or connections of a programming socket several times, one of the connections, in this case the connection NData or the contact 13 of the programming socket, is coded with a signal which is characteristic for the respective use (function). The further signal processing then takes place according to the characteristic signal.
- FIG. 3 For this purpose, an exemplary circuit diagram for the wiring of the programming socket is shown. Due to the multiple use of an analog / digital converter 15 samples the NData input of the programming socket cyclically. This is done symbolically by means of a switch 16. At certain time intervals, the digital / analog converter 15 thus detects the voltage applied to the input NData. The voltage value is digitally converted and supplied to a controller 17. This decides which function the inputs NClock and NData or their downstream signal processing should have.
- controller 17 controls a second switch 19 in the case of programming so that the synchronization input NClock is switched through to the programming interface 18. This results in the customary use of the programming inputs NClock and NData for programming the hearing device or the hearing device.
- a typical signal processing chip 21 is shown schematically. It has four signal inputs or outputs TR1 to TR4, four user interface inputs USI1 to USI4 and two voltage inputs VC1 and VC2.
- a programming interface PI is integrated in it, which has the inputs VCC, NData, NClock and GND.
- a programming plug 22 on the programming socket 10 not shown (see. FIG. 2 ) and thus uses the inputs of the programming interface PI for programming.
- the inputs of the signal processing chip are now also used to receive user signals.
- a probe device 23 (not shown) plugged into the programming socket 10 and connected to the programming interface PI.
- the feeler device 23 includes a coupling element 24, with which the two inputs VCC and NData are short-circuited.
- the input NData (first connection) is at the potential of the input VCC (third connection).
- the further input NClock (second connection) acquires a new function, namely that of the signal input from the feeler device 23.
- the feeler device 23 has a pushbutton 25 which is here between the connections or inputs NClock and GND is switched. Upon actuation of the button 25 so the input NClock is at ground potential. With this button 25 can thus be realized, for example, a program switching function on a hearing aid.
- the input NClock of the programming interface PI thus serves as user signal input.
- the coupling element 24 may be provided, for example, with an ohmic resistance, which optionally forms a voltage divider with a further resistor in the signal processing chip 21 '.
- an ohmic resistance which optionally forms a voltage divider with a further resistor in the signal processing chip 21 '.
- the input NData can thus be set to different potentials.
- a corresponding number of different functions in the signal processing can then be provided.
- the programming jack for a variety of Use user interfaces or user interfaces that independently recognizes the hearing device or the hearing device.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Hörvorrichtung mit einer Programmierbuchse, die mindestens einen ersten Anschluss und einen zweiten Anschluss aufweist, einer Signalverarbeitungseinrichtung, die an den zweiten Anschluss angeschlossen ist, sowie einer Steuereinrichtung. Unter dem Begriff "Hörvorrichtung" wird hier jedes am oder im Ohr tragbare, schallausgebende Gerät, insbesondere ein Hörgerät ein Headset, Kopfhörer und dergleichen, verstanden.The present invention relates to a hearing device with a programming socket having at least a first terminal and a second terminal, a signal processing device which is connected to the second terminal, and a control device. The term "hearing device" is understood to mean here any sound-emitting device which can be worn on or in the ear, in particular a hearing device, a headset, headphones and the like.
Hörgeräte sind tragbare Hörvorrichtungen, die zur Versorgung von Schwerhörenden dienen. Um den zahlreichen individuellen Bedürfnissen entgegenzukommen, werden unterschiedliche Bauformen von Hörgeräten wie Hinter-dem-Ohr-Hörgeräte (HdO), Hörgerät mit externem Hörer (RIC: receiver in the canal) und In-dem-Ohr-Hörgeräte (IdO), z.B. auch Concha-Hörgeräte oder Kanal-Hörgeräte (ITE, CIC), bereitgestellt. Die beispielhaft aufgeführten Hörgeräte werden am Außenohr oder im Gehörgang getragen. Darüber hinaus stehen auf dem Markt aber auch Knochenleitungshörhilfen, implantierbare oder vibrotaktile Hörhilfen zur Verfügung. Dabei erfolgt die Stimulation des geschädigten Gehörs entweder mechanisch oder elektrisch.Hearing aids are portable hearing aids that are used to care for the hearing impaired. In order to meet the numerous individual needs, different types of hearing aids such as behind-the-ear hearing aids (BTE), hearing aid with external receiver (RIC: receiver in the canal) and in-the-ear hearing aids (IDO), e.g. Concha hearing aids or canal hearing aids (ITE, CIC). The hearing aids listed by way of example are worn on the outer ear or in the ear canal. In addition, bone conduction hearing aids, implantable or vibrotactile hearing aids are also available on the market. The stimulation of the damaged hearing takes place either mechanically or electrically.
Hörgeräte besitzen prinzipiell als wesentliche Komponenten einen Eingangswandler, einen Verstärker und einen Ausgangswandler. Der Eingangswandler ist in der Regel ein Schallempfänger, z. B. ein Mikrofon, und/oder ein elektromagnetischer Empfänger, z. B. eine Induktionsspule. Der Ausgangswandler ist meist als elektroakustischer Wandler, z. B. Miniaturlautsprecher, oder als elektromechanischer Wandler, z. B. Knochenleitungshörer, realisiert. Der Verstärker ist üblicherweise in eine Signalverarbeitungseinheit integriert. Dieser prinzipielle Aufbau ist in
Hörgeräte sind vielfach mit einer Programmierbuchse ausgestattet, die es erlaubt, das Hörgerät individuell zu programmieren. Dazu sind typischerweise auf dem Signalverarbeitungschip des Hörgeräts, der das Programmierinterface beinhaltet, zwei Anschlüsse vorgesehen. Der Signalverarbeitungschip hat darüber hinaus zahlreiche andere Eingangssignale zu verarbeiten, weshalb entsprechend viele Eingänge bzw. Anschlüsse vorgesehen sind. Je mehr Funktionen in einem Hörgerät implementiert werden, desto mehr Anschlüsse sind vorzusehen, was jedoch letztlich auch zu Platzproblemen führt.Hearing aids are often equipped with a programming socket, which allows to program the hearing aid individually. For this purpose, two connections are typically provided on the signal processing chip of the hearing aid, which contains the programming interface. The signal processing chip also has to process numerous other input signals, which is why correspondingly many inputs or connections are provided. The more functions are implemented in a hearing aid, the more connections are to be provided, but ultimately also leads to space problems.
Das Programmieren eines Hörgeräts findet am Beginn seines Einsatzes und gegebenenfalls nochmals in einer Nachanpasssitzung oder bei einem Software-Update statt. Dies sind jedoch verhältnismäßig wenige Ereignisse im Verlauf des gesamten Einsatzes des Hörgeräts. Dennoch werden für das Programmieren sowohl eine Programmierbuchse als auch in der Regel zwei Chip-Anschlüsse bereit gehalten.The programming of a hearing aid takes place at the beginning of its use and, if necessary, again in a post-fitting session or during a software update. However, these are relatively few events throughout the use of the hearing aid. Nevertheless, both a programming jack and usually two chip connectors are kept ready for programming.
Die Aufgabe der vorliegenden Erfindung besteht darin, den in einer Hörvorrichtung zur Verfügung stehenden Platz möglichst gut auszunutzen bzw. die Hörvorrichtung entsprechend zu verkleinern.The object of the present invention is to make the best possible use of the space available in a hearing device or to correspondingly reduce the hearing device.
Erfindungsgemäß wird diese Aufgabe gelöst durch eine Hörvorrichtung mit einer Programmierbuchse, die mindestens einen ersten Anschluss und einen zweiten Anschluss aufweist, einer Signalverarbeitungseinrichtung, die an den zweiten Anschluss angeschlossen ist, sowie einer Steuereinrichtung, wobei die Steuereinrichtung das Potential des ersten Anschlusses abgreift und die Steuereinrichtung die Signalverarbeitungseinrichtung in eine erste Funktion schaltet, wenn der erste Anschluss auf dem vorgegebenen Potential liegt, und in eine zweite Funktion schaltet, wenn das Potential des ersten Anschlusses von dem vorgegebenen Potential abweicht.According to the invention, this object is achieved by a hearing device with a programming socket which has at least one first connection and one second connection, a signal processing device which is connected to the second connection, and a control device, wherein the control device taps off the potential of the first connection and the control device the signal processing means switches to a first function when the first terminal is at the predetermined potential and switches to a second function when the potential of the first terminal deviates from the predetermined potential.
Durch die erfindungsgemäße Mehrfachnutzung eines Anschlusses einer Programmierbuchse bzw. des damit verbundenen Chipanschlusses ist es möglich, Platz für zusätzliche funktionelle Einheiten einzusparen.The multiple use according to the invention of a connection of a programming socket or of the chip connection connected thereto makes it possible to save space for additional functional units.
Vorzugsweise besitzt die Programmierbuchse einen dritten Anschluss, der an ein festes internes Potential der Hörvorrichtung gelegt ist, wobei ein Koppelelement einerseits an den dritten Anschluss und andererseits an den ersten Anschluss lösbar gesteckt ist, wodurch das vorgegebene Potential durch das feste interne Potential gebildet ist. Auf diese Weise ist es leicht möglich, einen Anschluss der Programmierbuchse mit einem Signal zu kodieren, wodurch die Steuereinrichtung darauf schließen kann, dass der zweite Anschluss für eine andere Funktion als üblich eingesetzt wird.Preferably, the programming socket has a third terminal which is connected to a fixed internal potential of the hearing device, wherein a coupling element is releasably connected on the one hand to the third terminal and on the other hand to the first terminal, whereby the predetermined potential is formed by the fixed internal potential. In this way, it is easily possible to encode a port of the programming socket with a signal, which allows the controller to conclude that the second port is being used for a different function than usual.
Das feste interne Potential kann beispielsweise Masse oder eine Versorgungsspannung sein. Beide Potentiale liegen typischerweise jeweils an einem Anschluss der Programmierbuchse an, so dass eines davon beispielsweise mit Hilfe eines einfachen elektrischen Leiters als Koppelelement auf den dritten Anschluss übertragen werden kann. Alternativ kann der dritte Anschluss auch beispielsweise mit Hilfe eines ohmschen Widerstands als Koppelelement an Masse oder die Versorgungsspannung in der Programmierbuchse gekoppelt werden. Somit lässt sich an dem dritten Anschluss eine charakteristische Spannung einstellen, die unzweideutig auf eine spezielle Funktion des zweiten Anschlusses hindeutet.The fixed internal potential can be, for example, ground or a supply voltage. Both potentials are typically applied to each terminal of the programming socket, so that one of them can be transmitted to the third terminal as a coupling element, for example with the aid of a simple electrical conductor. Alternatively, the third connection can also be coupled, for example, by means of an ohmic resistance as a coupling element to ground or the supply voltage in the programming socket. Thus, a characteristic voltage can be applied to the third terminal which unequivocally indicates a specific function of the second port.
Entsprechend einer besonders bevorzugten Ausführungsform ist an den zweiten Anschluss ein Taster angesteckt. Hierdurch lässt sich der Programmiereingang auch für ein sogenanntes User-Interface nutzen. Speziell kann eine Tastereinrichtung auf die Programmierbuchse aufgesteckt sein, die den Taster sowie das Koppelelement, mit dem der erste Anschluss auf ein spezifisches Potential gelegt wird, beinhalten. Die Tastereinrichtung benötigt dabei keinen speziellen Platz an der Oberfläche der Hörvorrichtung und dient gleichzeitig als Schutz der Programmierbuchse.According to a particularly preferred embodiment, a push-button is connected to the second connection. As a result, the programming input can also be used for a so-called user interface. Specifically, a stylus device can be plugged onto the programming socket, which include the stylus and the coupling element, with which the first terminal is set to a specific potential. The stylus does not require a special place on the surface of the hearing and serves as a protection of the programming socket.
Insbesondere kann der erste Anschluss zur Synchronisation und der zweite Anschluss zum Dateneingang beim Programmieren der Hörvorrichtung dienen. Es wird dann also der Synchronisationsanschluss zur Anschlusskodierung und der Dateneingangsanschluss beispielsweise zur analogen Signaleingabe verwendet.In particular, the first connection for synchronization and the second connection for data input can serve in programming the hearing device. In that case, the synchronization terminal is used for terminal coding and the data input terminal is used for analog signal input, for example.
Die vorliegende Erfindung wird anhand der beigefügten Zeichnungen näher erläutert, in denen zeigen:
- FIG 1
- den prinzipiellen Aufbau eines Hörgeräts gemäß dem Stand der Technik;
- FIG 2
- eine Draufsicht auf eine Programmierbuchse gemäß dem Stand der Technik;
- FIG 3
- einen Schaltplan zum erfindungsgemäßen Beschalten einer Programmierbuchse;
- FIG 4
- einen Signalverarbeitungschip mit angestecktem Pro- grammierkabel und
- FIG 5
- einen Signalverarbeitungschip, bei dem der Program- miereingang für ein User-Interface genutzt ist.
- FIG. 1
- the basic structure of a hearing aid according to the prior art;
- FIG. 2
- a plan view of a programming jack according to the prior art;
- FIG. 3
- a circuit diagram for the inventive wiring of a programming socket;
- FIG. 4
- a signal processing chip with attached programming cable and
- FIG. 5
- a signal processing chip in which the programming input is used for a user interface.
Die nachfolgend näher geschilderten Ausführungsbeispiele stellen bevorzugte Ausführungsformen der vorliegenden Erfindung dar.The embodiments described in more detail below represent preferred embodiments of the present invention.
Zur näheren Erläuterung der Erfindung ist in
Um nun die Kontakte bzw. Anschlüsse einer Programmierbuchse mehrfach nutzen zu können, wird einer der Anschlüsse, hier der Anschluss NData bzw. der Kontakt 13 der Programmierbuchse mit einem für die jeweilige Nutzung (Funktion) charakteristischen Signal kodiert. Die weitere Signalverarbeitung erfolgt dann gemäß dem charakteristischen Signal. In
Weiterhin steuert der Controller 17 einen zweiten Schalter 19 im Falle des Programmierens so, dass der Synchronisationseingang NClock an das Programmierinterface 18 durchgeschaltet wird. Hierdurch ergibt sich die übliche Nutzung der Programmiereingänge NClock und NData für das Programmieren des Hörgeräts bzw. der Hörvorrichtung.Furthermore, the
Andernfalls, wenn an dem Eingang NData eine vorgegebene Spannung z.B. VCC oder GND, anliegt, wird dies ebenfalls nach einer bestimmten Zeit von dem Digital/Analog-Wandler 15 registriert und dem Controller 17 gemeldet. Dieser schaltet dann die dem Eingang NClock nachgeschaltete Signalverarbeitungseinrichtung in eine andere Funktion. Speziell wird in dem vorliegenden Beispiel von
In
Entsprechend der vorliegenden Erfindung werden nun die Eingänge des Signalverarbeitungschips, die ursprünglich nur für das Programmieren vorgesehen waren, auch für das Aufnehmen von Benutzersignalen benutzt. Hierzu wird gemäß
Im konkreten Beispiel von
Entsprechend einer weiteren Alternative kann das Koppelelement 24 beispielsweise mit einem ohmschen Widerstand versehen sein, der gegebenenfalls mit einem weiteren Widerstand in dem Signalverarbeitungschip 21' einen Spannungsteiler bildet. Dadurch liegt an dem Eingang NData eine charakteristische Spannung, z.B. VCC/2. Diese kann als eindeutiges Zeichen für eine spezifische Funktion der Signalverarbeitungseinrichtung erkannt werden. Je nach Ausgestaltung des Koppelelements 24 kann der Eingang NData somit auf unterschiedliche Potentiale gelegt werden. Abhängig von den verschiedenen Potentialen können dann auch entsprechend viele unterschiedliche Funktionen in der Signalverarbeitung bereitgestellt werden. Auf diese Weise lässt sich die Programmierbuchse für unterschiedlichste Userinterfaces bzw. Benutzerschnittstellen nutzen, die die Hörvorrichtung bzw. das Hörgerät selbständig erkennt.According to a further alternative, the
Claims (8)
dadurch gekennzeichnet, dass
characterized in that
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102007054603.5A DE102007054603B4 (en) | 2007-11-15 | 2007-11-15 | Hearing device with controlled programming socket |
Publications (2)
Publication Number | Publication Date |
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EP2061277A2 true EP2061277A2 (en) | 2009-05-20 |
EP2061277A3 EP2061277A3 (en) | 2013-06-05 |
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Application Number | Title | Priority Date | Filing Date |
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EP08165919.5A Withdrawn EP2061277A3 (en) | 2007-11-15 | 2008-10-06 | Hearing aid with controlled programming connector |
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US (1) | US8259971B2 (en) |
EP (1) | EP2061277A3 (en) |
DE (1) | DE102007054603B4 (en) |
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US9497554B2 (en) * | 2014-05-07 | 2016-11-15 | Starkey Laboratories, Inc. | Flex-based connector for hearing aid |
EP3139634B1 (en) * | 2015-08-24 | 2019-10-23 | Oticon A/s | Hearing device interface |
US10485706B2 (en) * | 2016-08-29 | 2019-11-26 | 3M Innovative Properties Company | Electronic hearing protector with switchable electrical contacts |
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- 2008-11-12 US US12/291,686 patent/US8259971B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
DE102007054603B4 (en) | 2018-10-18 |
US20090129614A1 (en) | 2009-05-21 |
US8259971B2 (en) | 2012-09-04 |
EP2061277A3 (en) | 2013-06-05 |
DE102007054603A1 (en) | 2009-05-28 |
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