EP0546619A3 - - Google Patents

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Publication number
EP0546619A3
EP0546619A3 EP19920203748 EP92203748A EP0546619A3 EP 0546619 A3 EP0546619 A3 EP 0546619A3 EP 19920203748 EP19920203748 EP 19920203748 EP 92203748 A EP92203748 A EP 92203748A EP 0546619 A3 EP0546619 A3 EP 0546619A3
Authority
EP
European Patent Office
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
EP19920203748
Other versions
EP0546619B1 (en
EP0546619A2 (en
Inventor
Wayne Schott
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
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of EP0546619A2 publication Critical patent/EP0546619A2/en
Publication of EP0546619A3 publication Critical patent/EP0546619A3/xx
Application granted granted Critical
Publication of EP0546619B1 publication Critical patent/EP0546619B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)
EP19920203748 1991-12-09 1992-12-03 Low frequency audio doubling and mixing circuit Expired - Lifetime EP0546619B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80535691A 1991-12-09 1991-12-09
US805356 1991-12-09

Publications (3)

Publication Number Publication Date
EP0546619A2 EP0546619A2 (en) 1993-06-16
EP0546619A3 true EP0546619A3 (enExample) 1994-04-20
EP0546619B1 EP0546619B1 (en) 1998-09-23

Family

ID=25191353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920203748 Expired - Lifetime EP0546619B1 (en) 1991-12-09 1992-12-03 Low frequency audio doubling and mixing circuit

Country Status (3)

Country Link
EP (1) EP0546619B1 (enExample)
JP (1) JPH05328481A (enExample)
DE (1) DE69227091T2 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE38822E1 (en) 1996-05-08 2005-10-11 Koninklijke Philips Electronics N.V. Circuit, audio system and method for processing signals, and a harmonics generator
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0746083A (ja) * 1993-07-27 1995-02-14 Toshiba Corp 音声合成兼帯域制限回路及び低音増強回路
JPH08237800A (ja) * 1995-02-27 1996-09-13 Matsushita Electric Ind Co Ltd 低音増強回路
FI105522B (fi) * 1996-08-06 2000-08-31 Sample Rate Systems Oy Järjestely kotiteatteri- tai muussa äänentoistolaitteistossa
US5930373A (en) * 1997-04-04 1999-07-27 K.S. Waves Ltd. Method and system for enhancing quality of sound signal
US6792119B1 (en) 1997-05-05 2004-09-14 Koninklijke Philips Electronics N.V. Audio system
KR20000069914A (ko) 1997-11-07 2000-11-25 요트.게.아. 롤페즈 오디오 신호 처리 회로를 구비하는 오디오 시스템
KR100560319B1 (ko) * 1997-11-07 2006-03-14 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 신호 처리 회로를 포함하는 오디오 시스템
AU1072099A (en) * 1997-11-17 1999-06-07 Srs Labs, Inc Low-frequency audio simulation system
US6285767B1 (en) 1998-09-04 2001-09-04 Srs Labs, Inc. Low-frequency audio enhancement system
JP4248148B2 (ja) * 1998-09-08 2009-04-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ オーディオシステムにおける低音強化手段
CN1296722A (zh) * 1999-03-24 2001-05-23 皇家菲利浦电子有限公司 带阻滤波器
US7031474B1 (en) 1999-10-04 2006-04-18 Srs Labs, Inc. Acoustic correction apparatus
US7277767B2 (en) 1999-12-10 2007-10-02 Srs Labs, Inc. System and method for enhanced streaming audio
EP1168296B1 (en) * 2000-05-30 2004-10-27 Yamaha Corporation Waveform signal generation method with pseudo low tone synthesis
US7574009B2 (en) 2001-09-21 2009-08-11 Roland Aubauer Method and apparatus for controlling the reproduction in audio signals in electroacoustic converters
JP4682137B2 (ja) * 2003-09-16 2011-05-11 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ オーディオ周波数レンジ適応
US9236842B2 (en) 2011-12-27 2016-01-12 Dts Llc Bass enhancement system
WO2014190140A1 (en) 2013-05-23 2014-11-27 Alan Kraemer Headphone audio enhancement system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710146A (en) * 1970-07-09 1973-01-09 Sony Corp Frequency doubler circuit
GB2153187A (en) * 1984-01-20 1985-08-14 Linn Prod Ltd A method of processing audio information
US4607381A (en) * 1984-10-05 1986-08-19 Sony Corporation Signal mixing circuit
US4734591A (en) * 1985-04-26 1988-03-29 Kabushiki Kaisha Toshiba Frequency doubler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710146A (en) * 1970-07-09 1973-01-09 Sony Corp Frequency doubler circuit
GB2153187A (en) * 1984-01-20 1985-08-14 Linn Prod Ltd A method of processing audio information
US4607381A (en) * 1984-10-05 1986-08-19 Sony Corporation Signal mixing circuit
US4734591A (en) * 1985-04-26 1988-03-29 Kabushiki Kaisha Toshiba Frequency doubler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE38822E1 (en) 1996-05-08 2005-10-11 Koninklijke Philips Electronics N.V. Circuit, audio system and method for processing signals, and a harmonics generator
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system
US8509464B1 (en) 2006-12-21 2013-08-13 Dts Llc Multi-channel audio enhancement system
US9232312B2 (en) 2006-12-21 2016-01-05 Dts Llc Multi-channel audio enhancement system

Also Published As

Publication number Publication date
EP0546619B1 (en) 1998-09-23
EP0546619A2 (en) 1993-06-16
DE69227091T2 (de) 1999-05-20
JPH05328481A (ja) 1993-12-10
DE69227091D1 (de) 1998-10-29

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