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WO2005079113A3 - Signal phase detection system - Google Patents

Signal phase detection system Download PDF

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Publication number
WO2005079113A3
WO2005079113A3 PCT/IB2005/050423 IB2005050423W WO2005079113A3 WO 2005079113 A3 WO2005079113 A3 WO 2005079113A3 IB 2005050423 W IB2005050423 W IB 2005050423W WO 2005079113 A3 WO2005079113 A3 WO 2005079113A3
Authority
WO
WIPO (PCT)
Prior art keywords
detection
electro
detection system
phase
acoustic transducer
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.)
Ceased
Application number
PCT/IB2005/050423
Other languages
French (fr)
Other versions
WO2005079113A2 (en
Inventor
Chin Y Koo
Hang M Teo
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of WO2005079113A2 publication Critical patent/WO2005079113A2/en
Publication of WO2005079113A3 publication Critical patent/WO2005079113A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/05—Detection of connection of loudspeakers or headphones to amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/008—Visual indication of individual signal levels
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measuring Phase Differences (AREA)

Abstract

The present invention relates to a detection system and method for detecting a phase difference between a first signal supplied to a first electro-acoustic transducer means (32) and a second signal supplied to a second electro-acoustic transducer means (34), wherein first and second detection means are provided for detecting magnetic fields or currents induced by said first and second signals into said first and second electro-acoustic transducer means. A control output is generated based on a comparison of detection outputs of the first and second detection means. This control output can then be used for correcting the phase relationship between the first and second signals or for providing a corresponding audible or visible indication to a user. Thereby, detection and correction of out-of-phase connections of loudspeakers or other electro-acoustic transducers can be provided at moderate system configurations. This automatic detection and correction configuration leads to a user-friendly phase detection system.
PCT/IB2005/050423 2004-02-10 2005-02-01 Signal phase detection system Ceased WO2005079113A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04100483.9 2004-02-10
EP04100483 2004-02-10

Publications (2)

Publication Number Publication Date
WO2005079113A2 WO2005079113A2 (en) 2005-08-25
WO2005079113A3 true WO2005079113A3 (en) 2006-02-23

Family

ID=34854672

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/050423 Ceased WO2005079113A2 (en) 2004-02-10 2005-02-01 Signal phase detection system

Country Status (1)

Country Link
WO (1) WO2005079113A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148287A (en) * 1961-03-09 1964-09-08 Columbia Broadcasting Syst Inc Signal phase sensing and maintaining system
US4555795A (en) * 1982-07-22 1985-11-26 Tvi Systems, Ltd. Monaural to binaural audio processor
FR2839602A1 (en) * 2002-05-13 2003-11-14 Claude Bernard Roch Carpentier Car improved stereophonic sound reproduction having sound correction process allowing inversion electrical phase where opposition phase listening position detected between channels.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148287A (en) * 1961-03-09 1964-09-08 Columbia Broadcasting Syst Inc Signal phase sensing and maintaining system
US4555795A (en) * 1982-07-22 1985-11-26 Tvi Systems, Ltd. Monaural to binaural audio processor
FR2839602A1 (en) * 2002-05-13 2003-11-14 Claude Bernard Roch Carpentier Car improved stereophonic sound reproduction having sound correction process allowing inversion electrical phase where opposition phase listening position detected between channels.

Also Published As

Publication number Publication date
WO2005079113A2 (en) 2005-08-25

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