EP2230729B1 - Identifizierung passiver Bauteile für elektronische Vorrichtungen - Google Patents

Identifizierung passiver Bauteile für elektronische Vorrichtungen Download PDF

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Publication number
EP2230729B1
EP2230729B1 EP09290197A EP09290197A EP2230729B1 EP 2230729 B1 EP2230729 B1 EP 2230729B1 EP 09290197 A EP09290197 A EP 09290197A EP 09290197 A EP09290197 A EP 09290197A EP 2230729 B1 EP2230729 B1 EP 2230729B1
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EP
European Patent Office
Prior art keywords
component
electromagnetic beam
coding
condition
code
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.)
Not-in-force
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EP09290197A
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English (en)
French (fr)
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EP2230729A1 (de
Inventor
Ingo Dr. Karla
Harald Eckhardt
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Alcatel Lucent SAS
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Alcatel Lucent SAS
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Priority to AT09290197T priority Critical patent/ATE540451T1/de
Priority to EP09290197A priority patent/EP2230729B1/de
Publication of EP2230729A1 publication Critical patent/EP2230729A1/de
Application granted granted Critical
Publication of EP2230729B1 publication Critical patent/EP2230729B1/de
Not-in-force legal-status Critical Current
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/465—Identification means, e.g. labels, tags, markings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/717—Structural association with built-in electrical component with built-in light source
    • H01R13/7175—Light emitting diodes (LEDs)

Definitions

  • the present invention relates to an arrangement and a method for identification of components and in particular to an arrangement and a method for identification of components detachably connected to an electronic device.
  • a radio-network basestation has many cables connected to it, including special, typically expensive cables like large antenna cables.
  • eNB evolved Node B
  • eNB evolved Node B
  • the knowledge about which components -including cables- are precisely installed at e.g. an eNB (evolved Node B) site supports self-configuration and optimisation of the system, and facilitates to manage a telecommunication system. For example, it would be very helpful for a technician to know in advance which "field replaceable units" precisely are located at a certain eNB site before he drives into the field for maintenance or repair, so that he knows which spare parts to bring. In particular passive components, like cables, do not yet have such remotely readable identifiers.
  • Some of those basestation cables are very expensive, and for the maintenace aspects it would be useful to know exactly which concrete cable (including length, and additonal information like e.g. protection against animal damage) may need to be replaced.
  • This identification of cable connections also allows to check whether all cable connections are put together correctly during installation of the equipment. Possible human plugging-together-errors are detected immediately.
  • cable connections are subject to failure when they start getting loose - this startened loosening is usually not detected before the connection separates completely and thus could lead to a failure of the complete system. It would be nice to have a means to detect possible problems in time, so that it can be repaired -like fastening the connection- before the equipement fails.
  • US 6,171,718 discloses an electrical receptable which provides provides power only to a properly installed plug and which makes use of one or more sensors which are able to detect blade insertion, ground plug insertion, presence of plug face motion near the receptable face, or a combination thereof.
  • a light emitting diode and a photodetector may be used as a sensor for detecting in the plug face is properly inserted.
  • WO 02/086573 also discloses a device for detecting if a plug is properly inserted.
  • US 5,222,164 discloses a connector/cable identification system which comprises a plug having an extension and a female housing having at least two pairs of optical emitter/sensors. Each emitter/sensor pair detects whether the extension is therebetween. Because different extensions have different lengths or aperture configurations, the type of connector (and thus the associated cable) can be determined.
  • first electromagnetic beam emitting means arranged at or in the device and adapted to emit and direct a first electromagnetic beam from the device to a component to be identified; first electromagnetic beam receiving means arranged at or in the component and adapted to receive the first electromagnetic beam from the device; coding means arranged at or in the component and adapted for coding the received first electromagnetic beam with a code according to component's information, the code being dedicated to the respective component or component's type at or in which the coding means are arranged; second electromagnetic beam emitting means arranged at or in the component and adapted to send a second electromagnetic beam coded according to the coding by the coding means from the component to the device; second electromagnetic beam receiving means arranged at or in the device and adapted to receive the coded second electromagnetic beam sent from the component, and processing means arranged at or in the device and /or a location remote from the device and adapted for processing the code
  • the component is a cable plug or a plug connector.
  • the cable plug or plug connector may well be provided with active circuit elements and a supply voltage by means of supply voltage wiring within the cable plug or plug connector.
  • the electromagnetic beam may preferably comprise an optical beam including infrared and UV beams.
  • the second electromagnetic beam emitting means may be an optical beam reflector arranged in the component, e.g. a plug connector, said optical beam reflector being preferably arranged adjacent to a wall of the device in the plugged-in condition of the plug connector and in parallel or in a predefined angle to said wall.
  • the light reflector may in particular comprise one or a plurality of reflective surfaces arranged in the component.
  • An actual condition of the component may comprise at least one of the following conditions, namely an electrical condition, a mechanical condition (such as an incorrect locking of the cable connector at or in its socket), an environmental condition, a material condition and/or a condition based on a physical effect.
  • an electrical condition such as an incorrect locking of the cable connector at or in its socket
  • an environmental condition such as an incorrect locking of the cable connector at or in its socket
  • a material condition such as an incorrect locking of the cable connector at or in its socket
  • a material condition such as an incorrect locking of the cable connector at or in its socket
  • the present invention for solving the above object provides a method for identification of components detachably connected to an electronic device, said method comprising the steps of: emitting a first electromagnetic beam from the device to a component to be identified; receiving at or in the component the first electromagnetic beam from the device; coding at or in the component the received first electromagnetic beam with a code according to component's information, the code being dedicated to the respective component or component's type at or in which the coding means are arranged; sending a second electromagnetic beam coded according to the coding by the coding means from the component to the device; receiving at or in the device the coded second electromagnetic beam sent from the component, and processing at or in the device and /or a location remote from the device the coded second electromagnetic beam for decoding the information from the code thereof for identifying the component.
  • the code is changed according to an actual condition of the component or of the component in its relation to the device.
  • the arrangement as described above may be part of a base station of a communication network, an O&M center of a communication network, and a communication network.
  • the present invention thus can be used for supporting the operation and maintenance (O&M) of telecommunications helping to make those complex systems more easily manageable with less costs and with less people's work.
  • O&M operation and maintenance
  • those persons skilled in the art and having studied the present specification are recognizing that obviously the present invention applies to many other technical fields beyond telecommunication systems.
  • the cable plug or plug connector needs no extra pins as it is the case in a coaxial connector.
  • the optical detection/ identification approach is also very robust with respect to electromagnetic interference problems especially in antenna cables of an RF transmitter where the close environment of the connector is disturbed by insufficient insulation or insufficient shielding against HF energy.
  • first electromagnetic beam emitting means arranged at or in the device and adapted to emit and direct a first electromagnetic beam from the device to a component to be identified; first electromagnetic beam receiving means arranged at or in the component and adapted to receive the first electromagnetic beam from the device; coding means arranged at or in the component and adapted for coding the received first electromagnetic beam with a code according to component's information the code being dedicated to the respective component or component's type at or in which the coding means are arranged; second electromagnetic beam emitting means arranged at or in the component and adapted to send a second electromagnetic beam coded according to the coding by the coding means from the component to the device; second electromagnetic beam receiving means arranged at or in the device and adapted to receive the coded second electromagnetic beam sent from the component, and processing means arranged at
  • the coding means are adapted to change the code according to an actual condition of the component or of the component in its relation to the device.
  • the component is represented by a cable plug which is connected to a socket on a backplane of an electronic device, like for example an expensive coaxial antenna cable attached to a backplane of an eNB.
  • the electromagnetic beam is implemented as an optical beam including visible light, infrared light or UV light
  • the first and second electromagnetic beam emitting means and the first and second electromagnetic beam receiving means are respectively implemented as first and second light emitting means and first and second light receiving means.
  • the component is represented by a cable plug which is connected to a socket on a backplane of an electronic device.
  • the cable plug according to the fifth example - which is part of an arrangement according to the invention - is implemented as an active component which is arranged to actively change the code of the coding means according to certain conditions of the component, i.e. the cable plug or according to its relation to the device.
  • first light emitting means in the example a plurality of light sources 21, 22 (for simplification, Fig. 1 only shows first and second light sources 21, 22, e.g. a first and second laser diode) is located in an electronic device 1, e.g. behind a back plane of an eNB.
  • the first light emitting means 21 and 22 are configured to emit and direct a plurality of preferably parallel light beams (for simplification, Fig.1 shows only a couple of first light beams I 11 , I 12 ) towards a component, in the example a cable plug 10 to be identified. It should be understood that there is also the possibility to use e.g.
  • First light receiving means in the example a light reflecting surface 11 is arranged in the optical path of the first light beams I 11 , I 12 and configured to receive and reflect the first light beams I 11 , I 12 at the site of the component 10.
  • the component 10 includes coding means 13 configured for coding the received first light beams I 11 , I 12 .
  • the coding means 13 may be implemented as a small transparent and/or reflective object which allows some coding of the light information.
  • this coding means 13 can be a small piece of glass or transparent plastic which is built at the side of the component 10. Depending on the concrete geometrical design, this piece of glass or transparent plastic can transmit the light or reflect the light according to the specific coding thereof.
  • the transmission or reflection can be inhibited by marking the surface of this glass or plastic piece. For example the marking could be achieved by making the surface rough in such a way that the glass or plastic piece is no longer reflective or transparent at a particular location. This marking may most easily be achieved by burning or scratching the former smooth surface of the transparent glass or plastic piece with a laser during production of the small transparent glass or plastic piece or during production of e.g. the cable plug 10.
  • the component 10 includes second light emitting means 12 , implemented as light reflecting means similar to the first light receiving means 11 and configured to send a plurality of second light beams (for simplification, Fig. 1 shows only a couple of second light beams I 21 and I 22 ) coded according to the coding of the coding means from the component 10 towards the device 1.
  • second light emitting means 12 implemented as light reflecting means similar to the first light receiving means 11 and configured to send a plurality of second light beams (for simplification, Fig. 1 shows only a couple of second light beams I 21 and I 22 ) coded according to the coding of the coding means from the component 10 towards the device 1.
  • a second light receiving means 3, e.g. a photo detector is arranged at or in the device 1 and configured to receive the coded second light beams I 21 and I 22 sent from the second light emitting means 12 at the component's 10 site.
  • a processing means 5 is arranged at or in the device 1 and/or at a location remote from the device 1 and configured for processing the coded second light beams I 12 , I 22 to determine information represented by the code.
  • the possibility of arranging the processing means 5 at a remote location is indicated by an interrupted line between the second light receiving means 3 and the processing means 5.
  • the coding exploits spatial and/or spectral diversity of the information:
  • the intended purpose of the coding method is to provide a simple and cheap way for coding, in case it would require much effort to increase e.g. the spatial resolution in one direction but still more coding information is needed, then it could be the simplest way to use a further dimension, like e.g. a second spatial direction, i.e. x+y-coding or a colored glass, or encoding by a hologram.
  • a further dimension like e.g. a second spatial direction, i.e. x+y-coding or a colored glass, or encoding by a hologram.
  • the coding means may be configured to change the code, and the processing means 5 in this case may be configured to detect or identify the change of the code and discriminate therefrom the condition of the component.
  • the second example of the arrangement for identification of components depicted in Fig. 2 has many similarities with the first example depicted in Fig. 1 .
  • the second example differs from the first one described above in that the first light emitting means 2 only comprise a single light source and are configured to emit a single light beam I 1 towards the component 10.
  • the first light receiving means 11 and the second light emitting means 12 on the component's side are combined and implemented as a single reflecting plane.
  • the coding means 13, the second light receiving means 3 and the processing means 5 may be arranged and configured in a similar manner as it is done in the first example according to Fig. 1 .
  • the same principle different ways to achieve a coding as described above may be employed in the second example according to Fig. 2 .
  • the third example of the present arrangement depicted in Fig. 3 uses as the first light receiving means 11 a tilted transparent surface of a prism having a different dielectric constant as compared to the surrounding medium.
  • the first light beam I 1 emitted from the first light emitting means 2 contains several wavelengths and is widened into its spectrum at the tilted transparent surface 11. Different wavelengths are refracted with respectively different angles as simply indicated by the two refracted light beams I 11 and I 12 , the prism thus forming the coding means 13.
  • the refracted light beams I 11 and I 12 having different wavelengths are reflected at different locations of a reflective surface of the prism, serving as the second light emitting means 12, the different colored light forming e.g. a couple of second light beams I 21 , I 22 which are received by the second light receiving means 3 on the device's side and can be processed by the processing means 5.
  • the fourth example of the present arrangement shows that the arrangement can also be used for a plurality of components, e.g. several cable plugs 101, 102, 103 as plugged in on one plane of the device 1.
  • the second light receiving means 3 and the processing means 5 in common for all identification purposes together.
  • all cable plugs 101, 102, 103 are illuminated by different dedicated first light emitting means or light sources 21, 22 and 23 each configured for emitting a first light beam I 11 towards the cable plugs 101, 102, 103, possibly having different wavelengths.
  • These cable plugs have for example similar construction as the cable plugs in the example depicted in Fig. 2 .
  • the different first light emitting means 21, 22 and 23 can be separately switched on and off.
  • Via light guides, e.g. optical fibers 41, 42, 43, the second light beams I 2 emitted from the different cable plugs 101, 102, 103 are guided towards a common second light receiving means 3, e.g. a light detector which is configured to distinguish the wavelengths of the second light beams I 2 .
  • the frequency information can be transmitted to the processing means 5 and there processed to get the component's identification.
  • the cable connector may comprise active circuit elements such as supply voltage wiring as well as transistors or diodes.
  • the component may comprise at least one sensor element, and the coding means may be configured to change the code according to a value sensed by the sensor element.
  • the processing means in this case may be configured to detect or identify the change of the code and discriminate thereof the condition of the component.
  • the sensing effect of the sensor element may be a pure physical effect, like a mechanical deformation of a bi-metal, an alteration of a direction of an optical axis for example by deflecting or scattering an optical beam at an optical element, etc.
  • Examples of possible modification of the code are provided as follows: When the connector plug 10 is loosening, then the distance between the device 1 and the component, i.e. the connector plug 10 and/or the angle of reflection is altered. This modifies the back-reflected light beam which can be detected by the device 1 and/or by the processing means 5. Further, overheating and thus thermal expansion can also alter the back-reflected light. Further, a wrong position of the connector plug 10, attached to the wrong socket or wrong device 1 is immediately detected.
  • the connector plug 10 may easily be provided with its own intelligence to modify the code according to the above conditions.
  • the fifth example of the present arrangement as schematically depicted in Fig. 5 constitutes an embodiment according to the invention and has some similarities with the third example depicted in Fig. 3 , and those parts which are identical in both example are designated by respectively equal reference signs.
  • the fifth example includes an additional sensor means 14 that are configured to modify the code of the coding means 13.
  • Examples for an explicit sensor could be: a) a temperature sensor, e.g. a bi-metal which is configured to mechanically move a part of the light reflecting mirror surface 12; b) a moisture sensor configured to directly affect the reflective properties of the light reflecting mirror surface; c) a mechanical sensor configured to check if the connector plug is locked mechanically (e.g.
  • bajonet lock closed d) a means configured to read out if the connector plug has a blown fuse; e) an electromagnetic field sensing means configured for sensing if an electromagnetic field is present, e.g. by a crystal that modifies its optical properties in the presence of an electric or magnetic field (caused by voltage, current or power).
  • the latter method may also provide means for detecting what's going on inside the cable connected to the connector plug, i.e. to detect if a transmitter is injecting RF power in an antenna cable.
  • the advantage of providing an electromagnetic field sensing element in the connector plug is a cheaper way than adding an extra detection device somewhere else in the device or system and provides a kind of alive check of the cable.
  • the present invention also encompasses a method for identification of components detachably connected to an electronic device, said method comprising the steps of: emitting a first electromagnetic beam from the device to a component to be identified; receiving at or in the component the first electromagnetic beam from the device; coding at or in the component the received first electromagnet beam with a code according to component's information; sending a second electromagnetic beam coded according to the coding by the coding means from the component to the device; receiving at or in the device the coded second electromagnetic beam sent from the component, and processing at or in the device and /or a location remote from the device the coded second electromagnetic beam for decoding the information from the code thereof.
  • the present arrangement for identification of components may be part of a base station for a communication network, or may be part of a communication network comprising the above described arrangement for identification of components, and part of an O&M center for a communication network comprising at least the processing means of the arrangement described above.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Supply And Installment Of Electrical Components (AREA)

Claims (7)

  1. Anordnung zur Identifikation von Bauteilen (10, 101, 102, 103), welche abtrennbar an eine elektronische Vorrichtung (1) angeschlossen ist, wobei die besagte Anordnung umfasst:
    - Ein erstes Mittel für die Emission eines elektromagnetischen Strahls (21 bis 23), welches an oder in der Vorrichtung (1) angeordnet und für die Emission und das Richten eines ersten elektromagnetischen Strahls (I1, I11, I12) von der Vorrichtung (1) an ein zu identifizierendes Bauteil (10, 101, 102, 103) ausgelegt ist;
    - Ein erstes Mittel für den Empfang eines elektromagnetischen Strahls (11), welches an oder in dem Bauteil (10, 101, 102, 103) angeordnet und für den Empfang des ersten elektromagnetischen Strahls (I1, I11, I12) von der Vorrichtung (1) ausgelegt ist;
    - Codiermittel (13), welche an oder in dem Bauteil (10, 101, 102, 103) angeordnet und für das Codieren des empfangenen ersten elektromagnetischen Strahls (I1, I11, I12) mit einem Code gemäß der Information des Bauteils ausgelegt sind, wobei der Code dem jeweiligen Bauteil (10, 101, 102, 103) oder dem Typ des Bauteils, an oder in welchem die Codiermittel (13) angeordnet sind, zugeordnet wird;
    - Ein zweites Mittel für die Emission eines elektromagnetischen Strahls (12), welches an oder in dem Bauteil (10, 101, 102, 103) angeordnet und für das Senden eines gemäß der Codierung durch die Codiermittel (13) codierten zweiten elektromagnetischen Strahls (I2, I21, I22) von dem Bauteil (10, 101, 102, 103) an die Vorrichtung (1) ausgelegt ist;
    - Ein zweites Mittel für den Empfang eines elektromagnetischen Strahls (3), welches an oder in der Vorrichtung (1) angeordnet und für den Empfang des von dem Bauteil (10, 101, 102, 103) gesendeten codierten zweiten elektromagnetischen Strahls (I2, I21, I22) ausgelegt ist, und
    - Ein Verarbeitungsmittel (5), welches an oder in der Vorrichtung (1) und/oder an einem von der Vorrichtung (1) entfernten Ort angeordnet und für die Verarbeitung des codierten zweiten elektromagnetischen Strahls (I2, I21, I22) zum Decodieren der Information dessen Codes für die Identifikation des Bauteils (10, 101, 102, 103) ausgelegt ist,
    dadurch gekennzeichnet, dass
    die Codiermittel (13) dazu ausgelegt sind, den Code gemäß einer momentanen Bedingung des Bauteils (10, 101, 102, 103) oder des Bauteils in seiner Beziehung zu der Vorrichtung zu ändern.
  2. Anordnung nach Anspruch 1, wobei das Bauteil (10, 101, 102, 103) ein Steckverbinder ist.
  3. Anordnung nach Anspruch 2, wobei das zweite Mittel zur Emission eines elektromagnetischen Strahls (12) ein elektromagnetischer Strahlreflektor des Steckverbinders (10, 101, 102, 103) ist, welcher insbesondere an einer Wand neben einer Wand der Vorrichtung (1) in einer Einstecklage des Steckverbinders (10, 101, 102, 103) und parallel oder in einem vorbestimmten Winkel zu der besagten Wand angeordnet ist.
  4. Anordnung nach Anspruch 1, wobei die Bedingung des Bauteils (10, 101, 102, 103) mindestens eine der folgenden Bauteilbedingungen umfasst:
    Eine elektrische Bedingung, eine mechanische Bedingung, eine Umgebungsbedingung, eine Materialbedingung und/oder eine auf einer physikalischen Wirkung basierende Bedingung.
  5. Verfahren zur Identifikation von Bauteilen (10, 101, 102, 103), welche abtrennbar an eine elektronische Vorrichtung (1) angeschlossen sind, wobei das Verfahren die folgenden Schritte umfasst:
    - Emittieren eines ersten elektromagnetischen Strahls (I1, I11, I12) von der Vorrichtung (1) an ein zu identifizierendes Bauteil (10, 101, 102, 103);
    - Empfangen, an oder in dem Bauteil (10, 101, 102, 103), des ersten elektromagnetischen Strahls (I1, I11, I12) von der Vorrichtung (1);
    - Codieren, an oder in dem Bauteil (10, 101, 102, 103), des empfangenen ersten elektromagnetischen Strahls (I1, I11, I12) mit einem Code gemäß der Bauteilinformation, wobei der Code dem jeweiligen Bauteil (10, 101, 102, 103) oder Typ des Bauteils, an oder in welchem der Schritt des Codierens durchgeführt wird, zugeordnet wird;
    - Senden eines zweiten elektromagnetischen Strahls (I2, I21, I22), welcher gemäß der Codierung durch die Codiermittel (13) codiert ist, von dem Bauteil (10, 101, 102, 103) an die Vorrichtung (1);
    - Empfangen, an oder in der Vorrichtung (1), des von dem Bauteil (10, 101, 102, 103) gesendeten codierten zweiten elektromagnetischen Strahls (I2, I21, I22), und
    - Verarbeiten, an oder in der Vorrichtung (1) und/oder an einem von der Vorrichtung (1) entfernten Ort, des codierten zweiten elektromagnetischen Strahls (I2, I21, I22) zum Decodieren der Information dessen Codes für die Identifikation des Bauteils (10, 101, 102, 103), dadurch gekennzeichnet, dass der Code gemäß einer momentanen Bedingung des Bauteils (10, 101, 102, 103) oder des Bauteils in seiner Beziehung zu der Vorrichtung geändert wird.
  6. Verfahren nach Anspruch 5, wobei der zweite elektromagnetische Strahl durch das Reflektieren des ersten elektromagnetischen Strahls (I1, I11, I12) an einem an dem Bauteil (10, 101, 102, 103) angeordneten elektromagnetischen Strahlreflektor gebildet wird.
  7. Verfahren nach Anspruch 5, wobei die momentane Bedingung mindestens eine der folgenden Bauteilbedingungen umfasst:
    Eine elektrische Bedingung, eine mechanische Bedingung, eine Umgebungsbedingung, eine Materialbedingung und/oder eine auf einer physikalischen Wirkung basierende Bedingung.
EP09290197A 2009-03-18 2009-03-18 Identifizierung passiver Bauteile für elektronische Vorrichtungen Not-in-force EP2230729B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT09290197T ATE540451T1 (de) 2009-03-18 2009-03-18 Identifizierung passiver bauteile für elektronische vorrichtungen
EP09290197A EP2230729B1 (de) 2009-03-18 2009-03-18 Identifizierung passiver Bauteile für elektronische Vorrichtungen

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Application Number Priority Date Filing Date Title
EP09290197A EP2230729B1 (de) 2009-03-18 2009-03-18 Identifizierung passiver Bauteile für elektronische Vorrichtungen

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EP2230729A1 EP2230729A1 (de) 2010-09-22
EP2230729B1 true EP2230729B1 (de) 2012-01-04

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AT (1) ATE540451T1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977389B1 (fr) * 2011-06-29 2015-07-17 Legrand France Prise electrique munie de moyens d'identification, fiche electrique et ensemble electrique associes.
EP4060828A1 (de) * 2021-03-19 2022-09-21 Vestel Elektronik Sanayi ve Ticaret A.S. Erster elektrischer verbinder, zweiter elektrischer verbinder und verfahren

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5222164A (en) 1992-08-27 1993-06-22 International Business Machines Corporation Electrically isolated optical connector identification system
US6171718B1 (en) 1998-12-28 2001-01-09 International Fuel Cells, Llc Pressurized water recovery system for a fuel cell power plant
US6176718B1 (en) * 1998-12-31 2001-01-23 Power-Off Products, Llc Adaptive/reactive safety plug receptacle
US6811325B2 (en) 2001-04-18 2004-11-02 Corona Optical Systems, Inc. Communications assembly disabling mechanism
TWI311369B (en) * 2006-03-24 2009-06-21 Advanced Semiconductor Eng Method for fabricating identification code on a substrate

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ATE540451T1 (de) 2012-01-15

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