EP1003282A3 - Integrated circuit for processing audio signal - Google Patents

Integrated circuit for processing audio signal Download PDF

Info

Publication number
EP1003282A3
EP1003282A3 EP99122312A EP99122312A EP1003282A3 EP 1003282 A3 EP1003282 A3 EP 1003282A3 EP 99122312 A EP99122312 A EP 99122312A EP 99122312 A EP99122312 A EP 99122312A EP 1003282 A3 EP1003282 A3 EP 1003282A3
Authority
EP
European Patent Office
Prior art keywords
audio signal
integrated circuit
sub
woofer
output signal
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.)
Withdrawn
Application number
EP99122312A
Other languages
German (de)
French (fr)
Other versions
EP1003282A2 (en
Inventor
Toru Pioneer Corporation Kageyama
Yusuke c/o Pioneer Corporation Takami
Tatsuzo c/o Pioneer Corporation Hasegawa
Kazuyuki c/o Pioneer Corporation Kudo
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
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 Pioneer Corp filed Critical Pioneer Corp
Publication of EP1003282A2 publication Critical patent/EP1003282A2/en
Publication of EP1003282A3 publication Critical patent/EP1003282A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • 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
    • H04R2420/03—Connection circuits to selectively connect 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
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Abstract

An integrated circuit for processing an audio signal includes a circuit for processing an input audio signal to create a front output signal, rear output signal and a sub-woofer output signal which are to be outputted to a front speaker, a rear speaker and a sub-woofer; and a switch for selecting the rear output signal or the sub-woofer output signal. The output from said switch is connected to a common output to the front speaker and the sub-woofer. In this configuration, the number of input/output terminals can be reduced.
EP99122312A 1998-11-17 1999-11-09 Integrated circuit for processing audio signal Withdrawn EP1003282A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP32652798A JP3573981B2 (en) 1998-11-17 1998-11-17 Integrated circuit for audio signal processing
JP32652798 1998-11-17

Publications (2)

Publication Number Publication Date
EP1003282A2 EP1003282A2 (en) 2000-05-24
EP1003282A3 true EP1003282A3 (en) 2006-05-17

Family

ID=18188836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122312A Withdrawn EP1003282A3 (en) 1998-11-17 1999-11-09 Integrated circuit for processing audio signal

Country Status (2)

Country Link
EP (1) EP1003282A3 (en)
JP (1) JP3573981B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4739666B2 (en) * 2003-12-24 2011-08-03 株式会社平和 Game control device
JP5244065B2 (en) * 2009-10-13 2013-07-24 株式会社三共 Game machine
JP5244066B2 (en) * 2009-10-13 2013-07-24 株式会社三共 Game machine
JP5362880B2 (en) * 2012-05-25 2013-12-11 株式会社三共 Game machine
JP5362881B2 (en) * 2012-05-25 2013-12-11 株式会社三共 Game machine
JP5485445B2 (en) * 2013-04-04 2014-05-07 株式会社三共 Game machine
JP5723038B2 (en) * 2014-02-18 2015-05-27 株式会社三共 Game machine
EP3422738A1 (en) * 2017-06-29 2019-01-02 Nxp B.V. Audio processor for vehicle comprising two modes of operation depending on rear seat occupation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249640A1 (en) * 1985-11-22 1987-12-23 Sony Corporation Multi-channel stereo reproducing apparatus
US4953213A (en) * 1989-01-24 1990-08-28 Pioneer Electronic Corporation Surround mode stereophonic reproducing equipment
US5581626A (en) * 1995-07-31 1996-12-03 Harman International Industries, Inc. Automatically switched equalization circuit
EP0866638A2 (en) * 1997-03-10 1998-09-23 Matsushita Electric Industrial Co., Ltd. Audiovisual amplifier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249640A1 (en) * 1985-11-22 1987-12-23 Sony Corporation Multi-channel stereo reproducing apparatus
US4953213A (en) * 1989-01-24 1990-08-28 Pioneer Electronic Corporation Surround mode stereophonic reproducing equipment
US5581626A (en) * 1995-07-31 1996-12-03 Harman International Industries, Inc. Automatically switched equalization circuit
EP0866638A2 (en) * 1997-03-10 1998-09-23 Matsushita Electric Industrial Co., Ltd. Audiovisual amplifier

Also Published As

Publication number Publication date
JP2000152369A (en) 2000-05-30
JP3573981B2 (en) 2004-10-06
EP1003282A2 (en) 2000-05-24

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