CN1458809B - 具有音调补偿的扩展立体声电路 - Google Patents

具有音调补偿的扩展立体声电路 Download PDF

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Publication number
CN1458809B
CN1458809B CN03131289.6A CN200310312896A CN1458809B CN 1458809 B CN1458809 B CN 1458809B CN 200310312896 A CN200310312896 A CN 200310312896A CN 1458809 B CN1458809 B CN 1458809B
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CN
China
Prior art keywords
signal
circuit
input
output
pass filter
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
CN03131289.6A
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English (en)
Chinese (zh)
Inventor
A·A·霍维尔
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.)
Thomson Licensing SAS
International Digital Madison Patent Holding SAS
Original Assignee
RCA Licensing 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 RCA Licensing Corp filed Critical RCA Licensing Corp
Application granted granted Critical
Publication of CN1458809B publication Critical patent/CN1458809B/zh
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
CN03131289.6A 2002-05-13 2003-05-13 具有音调补偿的扩展立体声电路 Expired - Fee Related CN1458809B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/144,495 US6735314B2 (en) 2002-05-13 2002-05-13 Expanded stereophonic circuit with tonal compensation
US10/144495 2002-05-13

Publications (1)

Publication Number Publication Date
CN1458809B true CN1458809B (zh) 2014-08-20

Family

ID=29400344

Family Applications (2)

Application Number Title Priority Date Filing Date
CN03131289.6A Expired - Fee Related CN1458809B (zh) 2002-05-13 2003-05-13 具有音调补偿的扩展立体声电路
CN03131289A Granted CN1458809A (zh) 2002-05-13 2003-05-13 具有音调补偿的扩展立体声电路

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN03131289A Granted CN1458809A (zh) 2002-05-13 2003-05-13 具有音调补偿的扩展立体声电路

Country Status (6)

Country Link
US (1) US6735314B2 (https=)
EP (1) EP1365625A3 (https=)
JP (1) JP4758058B2 (https=)
KR (1) KR100955296B1 (https=)
CN (2) CN1458809B (https=)
MX (1) MXPA03004131A (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7903823B2 (en) * 2005-04-28 2011-03-08 Texas Instruments Incorporated Apparatus and method for effecting sound stage expansion
US20150036826A1 (en) * 2013-05-08 2015-02-05 Max Sound Corporation Stereo expander method
US20150036828A1 (en) * 2013-05-08 2015-02-05 Max Sound Corporation Internet audio software method
US20140362996A1 (en) * 2013-05-08 2014-12-11 Max Sound Corporation Stereo soundfield expander
US11716062B2 (en) * 2020-08-13 2023-08-01 Owlet Baby Care, Inc. Multi-channel common-mode coupled AC gain amplifier
CN114449416A (zh) * 2021-12-03 2022-05-06 东莞凯韵科技有限公司 一种用于音响的3d音效电路

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208493A (en) * 1991-04-30 1993-05-04 Thomson Consumer Electronics, Inc. Stereo expansion selection switch
CN1140294A (zh) * 1995-07-10 1997-01-15 三星电子株式会社 声音混合电路

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1578854A (en) * 1976-02-27 1980-11-12 Victor Company Of Japan Stereophonic sound reproduction system
JPS5937800A (ja) * 1982-07-23 1984-03-01 ステレオ・コンセプツ・インク 心理的音響効果を向上するための装置と方法
US4567607A (en) 1983-05-03 1986-01-28 Stereo Concepts, Inc. Stereo image recovery
US4700389A (en) 1985-02-15 1987-10-13 Pioneer Electronic Corporation Stereo sound field enlarging circuit
JPS6316796U (https=) * 1986-07-18 1988-02-03
US4831652A (en) * 1988-05-05 1989-05-16 Thomson Consumer Electronics, Inc. Stereo expansion circuit selection switch
US4866774A (en) * 1988-11-02 1989-09-12 Hughes Aircraft Company Stero enhancement and directivity servo
US5400405A (en) * 1993-07-02 1995-03-21 Harman Electronics, Inc. Audio image enhancement system
JPH0865068A (ja) * 1994-08-18 1996-03-08 Rohm Co Ltd 低電圧駆動のオーディオ信号増幅装置
US5692050A (en) * 1995-06-15 1997-11-25 Binaura Corporation Method and apparatus for spatially enhancing stereo and monophonic signals
JP3226870B2 (ja) 1998-04-15 2001-11-05 株式会社東芝 低域補正回路、ステレオパワーアンプの低域補正方法、及びデジタルオーディオ機器
WO2000042818A1 (en) * 1999-01-11 2000-07-20 Thomson Licensing S.A. A stereophonic spatial expansion circuit with tonal compensation and active matrixing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208493A (en) * 1991-04-30 1993-05-04 Thomson Consumer Electronics, Inc. Stereo expansion selection switch
CN1140294A (zh) * 1995-07-10 1997-01-15 三星电子株式会社 声音混合电路

Also Published As

Publication number Publication date
EP1365625A3 (en) 2008-11-26
US6735314B2 (en) 2004-05-11
KR20030088859A (ko) 2003-11-20
JP4758058B2 (ja) 2011-08-24
JP2003333696A (ja) 2003-11-21
CN1458809A (zh) 2003-11-26
EP1365625A2 (en) 2003-11-26
MXPA03004131A (es) 2004-10-15
KR100955296B1 (ko) 2010-04-30
US20030210792A1 (en) 2003-11-13

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Legal Events

Date Code Title Description
PB01 Publication
SE01 Entry into force of request for substantive examination
GR01 Patent grant
CP02 Change in the address of a patent holder

Address after: I Si Eli Murli Nor, France

Patentee after: THOMSON LICENSING S.A.

Address before: French Boulogne

Patentee before: THOMSON LICENSING S.A.

TR01 Transfer of patent right

Effective date of registration: 20190225

Address after: Paris France

Patentee after: International Digital Madison Patent Holding Co.

Address before: I Si Eli Murli Nor, France

Patentee before: THOMSON LICENSING

Effective date of registration: 20190225

Address after: I Si Eli Murli Nor, France

Patentee after: THOMSON LICENSING

Address before: I Si Eli Murli Nor, France

Patentee before: THOMSON LICENSING S.A.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140820

Termination date: 20200513