EP2733958A1 - Dispositif électronique conçu pour détecter un système audio de véhicule - Google Patents

Dispositif électronique conçu pour détecter un système audio de véhicule Download PDF

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Publication number
EP2733958A1
EP2733958A1 EP12192956.6A EP12192956A EP2733958A1 EP 2733958 A1 EP2733958 A1 EP 2733958A1 EP 12192956 A EP12192956 A EP 12192956A EP 2733958 A1 EP2733958 A1 EP 2733958A1
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EP
European Patent Office
Prior art keywords
electronic device
pulse
coupled
audio system
audio
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
EP12192956.6A
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German (de)
English (en)
Other versions
EP2733958B1 (fr
Inventor
Jens Kristian Poulsen
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.)
BlackBerry Ltd
Original Assignee
BlackBerry Ltd
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.)
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Publication date
Application filed by BlackBerry Ltd filed Critical BlackBerry Ltd
Priority to EP12192956.6A priority Critical patent/EP2733958B1/fr
Publication of EP2733958A1 publication Critical patent/EP2733958A1/fr
Application granted granted Critical
Publication of EP2733958B1 publication Critical patent/EP2733958B1/fr
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments

Definitions

  • Some portable electronic devices are used to provide audio output to an audio system, such as an audio system in a motor vehicle. For example, audio from music, movies or telephone calls may be routed from the electronic device to an audio system in a motor vehicle by connecting the electronic device to the audio system.
  • the electronic device when it detects that it is being charged, it then generates a subsequent pulse. In some embodiments, before generating the pulse, the electronic device measures an observed impedance at an audio jack of the electronic device, and generates the pulse only if the observed impedance is within a particular impedance range.
  • the magnitude of the current of the jack response I Q will normally be quite small since there is effectively a short to ground.
  • magnitude of the current of the jack response I Q is substantially less the magnitude of the current of the pulse I P , then this may indicate that some of the current of the pulse I P has been siphoned off (e.g., and has gone to the charging accessory 130, for example) and that the electronic device 110 is coupled to an audio system.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
EP12192956.6A 2012-11-16 2012-11-16 Dispositif électronique conçu pour détecter un système audio de véhicule Active EP2733958B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12192956.6A EP2733958B1 (fr) 2012-11-16 2012-11-16 Dispositif électronique conçu pour détecter un système audio de véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12192956.6A EP2733958B1 (fr) 2012-11-16 2012-11-16 Dispositif électronique conçu pour détecter un système audio de véhicule

Publications (2)

Publication Number Publication Date
EP2733958A1 true EP2733958A1 (fr) 2014-05-21
EP2733958B1 EP2733958B1 (fr) 2016-07-13

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ID=47594283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12192956.6A Active EP2733958B1 (fr) 2012-11-16 2012-11-16 Dispositif électronique conçu pour détecter un système audio de véhicule

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EP (1) EP2733958B1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004001552A2 (fr) * 2002-06-24 2003-12-31 Analog Devices, Inc Systeme d'identification et procede permettant de reconnaitre un dispositif comme etant l'un quelconque de differents types de dispositifs
US20110128019A1 (en) * 2009-11-27 2011-06-02 Oki Semiconductor Co., Ltd. Method and circuitry for identifying plug type
EP2487931A2 (fr) * 2011-02-09 2012-08-15 Apple Inc. Détection du type d'accessoire audio et attribution de signal a une broche du connecteur
US20120250894A1 (en) * 2009-12-18 2012-10-04 Gilles Bourgoin Apparatus including means for connecting to one or more outer speakers as well as means for detecting such a connection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004001552A2 (fr) * 2002-06-24 2003-12-31 Analog Devices, Inc Systeme d'identification et procede permettant de reconnaitre un dispositif comme etant l'un quelconque de differents types de dispositifs
US20110128019A1 (en) * 2009-11-27 2011-06-02 Oki Semiconductor Co., Ltd. Method and circuitry for identifying plug type
US20120250894A1 (en) * 2009-12-18 2012-10-04 Gilles Bourgoin Apparatus including means for connecting to one or more outer speakers as well as means for detecting such a connection
EP2487931A2 (fr) * 2011-02-09 2012-08-15 Apple Inc. Détection du type d'accessoire audio et attribution de signal a une broche du connecteur

Also Published As

Publication number Publication date
EP2733958B1 (fr) 2016-07-13

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