DE69735577T2 - Automatische Erkennung von kurzgeschlossenen Lautsprechern in Kraftfahrzeugaudiosystemen - Google Patents

Automatische Erkennung von kurzgeschlossenen Lautsprechern in Kraftfahrzeugaudiosystemen Download PDF

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Publication number
DE69735577T2
DE69735577T2 DE69735577T DE69735577T DE69735577T2 DE 69735577 T2 DE69735577 T2 DE 69735577T2 DE 69735577 T DE69735577 T DE 69735577T DE 69735577 T DE69735577 T DE 69735577T DE 69735577 T2 DE69735577 T2 DE 69735577T2
Authority
DE
Germany
Prior art keywords
signal
audio
power
amplitude
input
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 - Fee Related
Application number
DE69735577T
Other languages
German (de)
English (en)
Other versions
DE69735577D1 (de
Inventor
John Elliot Plymouth Whitecar
Andrew Cyril Plymouth Krochmal
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Publication of DE69735577D1 publication Critical patent/DE69735577D1/de
Application granted granted Critical
Publication of DE69735577T2 publication Critical patent/DE69735577T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
    • G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
    • G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Amplifiers (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
DE69735577T 1996-11-08 1997-10-31 Automatische Erkennung von kurzgeschlossenen Lautsprechern in Kraftfahrzeugaudiosystemen Expired - Fee Related DE69735577T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/745,768 US5815584A (en) 1996-11-08 1996-11-08 Automatic detection of shorted loudspeakers in automotive audio systems
US745768 1996-11-08

Publications (2)

Publication Number Publication Date
DE69735577D1 DE69735577D1 (de) 2006-05-18
DE69735577T2 true DE69735577T2 (de) 2007-04-26

Family

ID=24998175

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69735577T Expired - Fee Related DE69735577T2 (de) 1996-11-08 1997-10-31 Automatische Erkennung von kurzgeschlossenen Lautsprechern in Kraftfahrzeugaudiosystemen

Country Status (5)

Country Link
US (1) US5815584A (https=)
EP (1) EP0841570B1 (https=)
JP (1) JPH10153636A (https=)
CA (1) CA2220386A1 (https=)
DE (1) DE69735577T2 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013105123B4 (de) 2012-05-24 2022-01-27 Denso Electronics Corporation Fahrzeugannäherungs-Warnvorrichtung

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6577737B1 (en) 2000-02-17 2003-06-10 Visteon Global Technologies, Inc. Method of detecting a DC offset in an automotive audio system
JP3908434B2 (ja) * 2000-03-06 2007-04-25 パイオニア株式会社 スピーカを備えた情報機器
US20010026623A1 (en) * 2000-10-17 2001-10-04 Erwin Duane A. Remote Broadcasting System
TW487904B (en) * 2000-12-20 2002-05-21 Elan Microelectronics Corp Integrated voice synthesizer for automatically detecting speaker's connection status and the detection method therefor
US6870934B2 (en) * 2002-07-15 2005-03-22 Visteon Global Technologies, Inc. Audio loudspeaker detection using back-EMF sensing
US6760452B2 (en) 2002-10-24 2004-07-06 Visteon Global Technologies, Inc. Multi-channel audio signal limiter with shared clip detection
DE10249495B3 (de) * 2002-10-24 2004-05-27 Daimlerchrysler Ag Vorrichtung zum Testen von Lautsprechern auf Funktionsfähigkeit
US20070055462A1 (en) * 2002-11-29 2007-03-08 Daniel Mulligan Circuit for use in a multifunction handheld device with wireless host interface
US20070078548A1 (en) * 2002-11-29 2007-04-05 May Daniel M Circuit for use in multifunction handheld device having a radio receiver
US20070052792A1 (en) * 2002-11-29 2007-03-08 Daniel Mulligan Circuit for use in cellular telephone with video functionality
US7555410B2 (en) * 2002-11-29 2009-06-30 Freescale Semiconductor, Inc. Circuit for use with multifunction handheld device with video functionality
US20040104707A1 (en) * 2002-11-29 2004-06-03 May Marcus W. Method and apparatus for efficient battery use by a handheld multiple function device
US8005230B2 (en) * 2002-12-20 2011-08-23 The AVC Group, LLC Method and system for digitally controlling a multi-channel audio amplifier
US20050036631A1 (en) * 2003-08-11 2005-02-17 Honda Giken Kogyo Kabushiki Kaisha System and method for testing motor vehicle loudspeakers
US20050175195A1 (en) * 2004-02-10 2005-08-11 Cheney Maynard C.Jr. Detecting connectivity of a speaker
US20050249353A1 (en) * 2004-05-05 2005-11-10 Visteon Global Technologies, Inc. System and method for detecting fault conditions on audio output channels
US20050285935A1 (en) * 2004-06-29 2005-12-29 Octiv, Inc. Personal conferencing node
US7636446B1 (en) * 2004-09-22 2009-12-22 Apple Inc. State machine enabling auto-recovery of short-circuited class D audio amplifiers
US20060139030A1 (en) * 2004-12-17 2006-06-29 Hubbard Bradley J System and method for diagnosing manufacturing defects in a hearing instrument
EP1957992B1 (en) * 2005-12-06 2011-05-25 Harman International Industries, Incorporated Diagnostic system for power converter
EP1985014B1 (en) * 2006-02-07 2010-07-28 D2Audio Corporation Pwm feedback/feed-forward protection
DE102006039162A1 (de) * 2006-08-21 2008-02-28 Lear Corp., Southfield Schutzverfahren für Lautsprechersysteme
JP5058623B2 (ja) * 2007-02-16 2012-10-24 キヤノン株式会社 スピーカ装置、スピーカ駆動装置、およびそれらの制御方法
US8063698B2 (en) * 2008-05-02 2011-11-22 Bose Corporation Bypassing amplification
US8325931B2 (en) * 2008-05-02 2012-12-04 Bose Corporation Detecting a loudspeaker configuration
KR20110027023A (ko) * 2009-09-09 2011-03-16 삼성전자주식회사 음성처리장치 및 방법
JP2011182263A (ja) * 2010-03-02 2011-09-15 Panasonic Corp スピーカ駆動集積回路
US9538287B2 (en) * 2011-04-15 2017-01-03 Fairchild Semiconductor Corporation DC voltage error protection circuit
JP5611114B2 (ja) * 2011-05-09 2014-10-22 アルパイン株式会社 パワーアンプのスピーカ接続検査方法及び装置
US8675078B1 (en) 2011-09-30 2014-03-18 Thomson Licensing Test technique for set-top boxes
DE102011087676A1 (de) * 2011-12-02 2013-06-06 Continental Automotive Gmbh Verfahren und Vorrichtung zur Überprüfung einer Lautsprecheranordnung
CN106412761B (zh) 2011-12-30 2020-02-14 意法半导体研发(深圳)有限公司 用于汽车音频功率放大器的嵌入式扬声器保护
US9084059B2 (en) * 2012-06-08 2015-07-14 Apple Inc. Electronic audio device to determine matching and non-matching speakers
CN102998581B (zh) * 2012-11-14 2015-05-06 肇庆理士电源技术有限公司 用于铅酸蓄电池自恢复保险的检测装置
US9118985B2 (en) * 2012-12-04 2015-08-25 Bose Corporation Communication of diagnostic information from satellite to host
WO2016040143A1 (en) * 2014-09-09 2016-03-17 Panasonic Automotive Systems Company Of America, Divison Of Panasonic Corporation Of North America Smart plug and play automatic obd-ii system tester
CN108254651B (zh) * 2016-12-28 2020-09-18 致茂电子(苏州)有限公司 接线检查方法
CN107864443B (zh) * 2017-10-30 2020-05-12 歌尔股份有限公司 耳机电池的断路检测装置及检测方法
KR102459233B1 (ko) * 2017-11-15 2022-10-26 현대자동차주식회사 차량용 앰프, 차량 및 그 제어방법
DE102018125268B4 (de) * 2018-10-12 2021-12-30 Volkswagen Aktiengesellschaft Prüfvorrichtung und Verfahren zur Prüfung wenigstens einer Komponente einer Tür eines Fahrzeuges
US11816936B2 (en) * 2018-12-03 2023-11-14 Bendix Commercial Vehicle Systems, Llc System and method for detecting driver tampering of vehicle information systems

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602819A (en) * 1969-05-07 1971-08-31 Western Electric Co Sensitivity or noise level measurement circuit and method
US3755741A (en) * 1972-02-11 1973-08-28 Collins Radio Co Self-monitoring of radio receivers
US4060767A (en) * 1976-11-10 1977-11-29 The United States Of America As Represented By The Secretary Of The Army Self test circuit for multichannel radio receivers
US4124780A (en) * 1976-11-18 1978-11-07 Nippon Gakki Seizo Kabushiki Kaisha FM stereophonic receiver providing a test signal
US4234964A (en) * 1977-05-11 1980-11-18 Industrial Electronics Service Company Radio receiver monitoring and testing apparatus
DE2755221C2 (de) * 1977-12-10 1985-05-30 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zur selbsttätigen Überwachung der HF-Empfindlichkeit und des NF-Ausgangspegels eines Funkempfängers und Schaltungsanordnung zur Durchführung des Verfahrens
US4245352A (en) * 1979-03-07 1981-01-13 International Jensen Incorporated Automated system for testing radio receivers
FR2468918A1 (fr) * 1979-10-02 1981-05-08 Rondier Jacques Banc de controle et reglages pour auto-radios
JPS5795734A (en) * 1980-12-05 1982-06-14 Mitsubishi Electric Corp Method for automatic inspection of multiple radio loud speaker receiving station
US4346268A (en) * 1981-01-30 1982-08-24 Geerling Leonardus J Automatic audiological analyzer
GB2199466A (en) * 1986-11-08 1988-07-06 G L Communications Limited Monitoring loudspeakers
DE3709556A1 (de) * 1987-03-24 1988-10-13 Paul Dipl Ing Dr Ing Scherer Verfahren und vorrichtung zur bestimmung der linearen verzerrungen einer elektroakustischen uebertragungsstrecke
US4864639A (en) * 1987-09-28 1989-09-05 Cincinnati Electronics Corporation Self-test device and method having an amplifier converted into an oscillator
DD267616A1 (de) * 1987-10-12 1989-05-03 Nordhausen Veb Fernmeldewerk Verfahren zur empfindlichkeitsmessung akustischer und telefonometrischer einrichtungen
JPH03181233A (ja) * 1989-12-11 1991-08-07 Hitachi Denshi Ltd 無線機の電源電圧表示方式
US4978926A (en) * 1989-12-21 1990-12-18 Ford Motor Company Audio limiter using voltage multiplexed feedback
US5187809A (en) * 1990-08-24 1993-02-16 Motorola, Inc. Dual mode automatic gain control
US5042070A (en) * 1990-10-01 1991-08-20 Ford Motor Company Automatically configured audio system
US5255324A (en) * 1990-12-26 1993-10-19 Ford Motor Company Digitally controlled audio amplifier with voltage limiting
US5394476A (en) * 1992-12-17 1995-02-28 Motorola, Inc. Volume control device
US5450624A (en) * 1993-01-07 1995-09-12 Ford Motor Company Method and apparatus for diagnosing amp to speaker connections

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013105123B4 (de) 2012-05-24 2022-01-27 Denso Electronics Corporation Fahrzeugannäherungs-Warnvorrichtung

Also Published As

Publication number Publication date
DE69735577D1 (de) 2006-05-18
CA2220386A1 (en) 1998-05-08
JPH10153636A (ja) 1998-06-09
US5815584A (en) 1998-09-29
EP0841570B1 (en) 2006-03-29
EP0841570A3 (en) 1999-07-07
EP0841570A2 (en) 1998-05-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee