FR2203250A1 - - Google Patents

Info

Publication number
FR2203250A1
FR2203250A1 FR7336722A FR7336722A FR2203250A1 FR 2203250 A1 FR2203250 A1 FR 2203250A1 FR 7336722 A FR7336722 A FR 7336722A FR 7336722 A FR7336722 A FR 7336722A FR 2203250 A1 FR2203250 A1 FR 2203250A1
Authority
FR
France
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
FR7336722A
Other languages
French (fr)
Other versions
FR2203250B1 (cs
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of FR2203250A1 publication Critical patent/FR2203250A1/fr
Application granted granted Critical
Publication of FR2203250B1 publication Critical patent/FR2203250B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
FR7336722A 1972-10-13 1973-10-15 Expired FR2203250B1 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972118493U JPS5251764Y2 (cs) 1972-10-13 1972-10-13

Publications (2)

Publication Number Publication Date
FR2203250A1 true FR2203250A1 (cs) 1974-05-10
FR2203250B1 FR2203250B1 (cs) 1978-01-06

Family

ID=14738024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7336722A Expired FR2203250B1 (cs) 1972-10-13 1973-10-15

Country Status (8)

Country Link
US (1) US3849600A (cs)
JP (1) JPS5251764Y2 (cs)
CA (1) CA982057A (cs)
DE (1) DE2351423C2 (cs)
FR (1) FR2203250B1 (cs)
GB (1) GB1425519A (cs)
IT (1) IT995830B (cs)
NL (1) NL180557C (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987003771A1 (en) * 1985-12-06 1987-06-18 Sparkjaer Ole A method and a circuit for decoding four-channel signals which are coded in a matrix and available in the form of a two-channel signal

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2455336C3 (de) * 1970-09-23 1982-11-11 Siegbert Dipl.-Ing. Dr. 7146 Tamm Hentschke Interferenzlautsprechersystem für stereophone Wiedergabe
US4191852A (en) * 1978-05-16 1980-03-04 Shin-Shirasuna Electric Corporation Stereophonic sense enhancing apparatus
US4355203A (en) * 1980-03-12 1982-10-19 Cohen Joel M Stereo image separation and perimeter enhancement
US4308423A (en) * 1980-03-12 1981-12-29 Cohen Joel M Stereo image separation and perimeter enhancement
DE3127478A1 (de) * 1981-07-11 1983-01-20 Interessengemeinschaft für Rundfunkschutzrechte GmbH, 4000 Düsseldorf Stereophonisches geraet fuer rundfunk- oder fernsehempfang oder zur aufzeichnung und/oder wiedergabe von ton- oder video-aufnahmen
US4489432A (en) * 1982-05-28 1984-12-18 Polk Audio, Inc. Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
US5412731A (en) * 1982-11-08 1995-05-02 Desper Products, Inc. Automatic stereophonic manipulation system and apparatus for image enhancement
US4819269A (en) * 1987-07-21 1989-04-04 Hughes Aircraft Company Extended imaging split mode loudspeaker system
US4975954A (en) * 1987-10-15 1990-12-04 Cooper Duane H Head diffraction compensated stereo system with optimal equalization
US5136651A (en) * 1987-10-15 1992-08-04 Cooper Duane H Head diffraction compensated stereo system
US4910779A (en) * 1987-10-15 1990-03-20 Cooper Duane H Head diffraction compensated stereo system with optimal equalization
US5034983A (en) * 1987-10-15 1991-07-23 Cooper Duane H Head diffraction compensated stereo system
US4910778A (en) * 1987-10-16 1990-03-20 Barton Geoffrey J Signal enhancement processor for stereo system
JP2667228B2 (ja) * 1988-11-07 1997-10-27 株式会社日立製作所 テレビジョン受像機のステレオ再生装置
US4939781A (en) * 1988-11-14 1990-07-03 Lamonica Chuck Device for eliminating absolute polarity inversion in a high-fidelity sound reproduction system
US5841879A (en) * 1996-11-21 1998-11-24 Sonics Associates, Inc. Virtually positioned head mounted surround sound system
US6144747A (en) * 1997-04-02 2000-11-07 Sonics Associates, Inc. Head mounted surround sound system
US5661808A (en) * 1995-04-27 1997-08-26 Srs Labs, Inc. Stereo enhancement system
US5850453A (en) 1995-07-28 1998-12-15 Srs Labs, Inc. Acoustic correction apparatus
US5677957A (en) * 1995-11-13 1997-10-14 Hulsebus; Alan Audio circuit producing enhanced ambience
US5970152A (en) * 1996-04-30 1999-10-19 Srs Labs, Inc. Audio enhancement system for use in a surround sound environment
US5912976A (en) * 1996-11-07 1999-06-15 Srs Labs, Inc. Multi-channel audio enhancement system for use in recording and playback and methods for providing same
US6281749B1 (en) 1997-06-17 2001-08-28 Srs Labs, Inc. Sound enhancement system
US6181796B1 (en) * 1998-02-13 2001-01-30 National Semiconductor Corporation Method and system which drives left, right, and subwoofer transducers with multichannel amplifier having reduced power supply requirements
US6089923A (en) * 1999-08-20 2000-07-18 Adc Telecommunications, Inc. Jack including crosstalk compensation for printed circuit board
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
US7076071B2 (en) * 2000-06-12 2006-07-11 Robert A. Katz Process for enhancing the existing ambience, imaging, depth, clarity and spaciousness of sound recordings
RU2009108329A (ru) * 2006-08-10 2010-09-20 Конинклейке Филипс Электроникс Н.В. (Nl) Устройство и способ обработки аудиосигнала
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system
DE102008035685A1 (de) * 2008-07-30 2010-02-04 Elac Electroacustic Gmbh Verfahren zum Betreiben eines Stereo-Lautsprechersystems
CN103329571B (zh) 2011-01-04 2016-08-10 Dts有限责任公司 沉浸式音频呈现系统
WO2014190140A1 (en) 2013-05-23 2014-11-27 Alan Kraemer Headphone audio enhancement system
FI20165142A (fi) * 2016-02-24 2017-08-25 Panphonics Oy Äänentoistojärjestelmä

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073037B (de) * 1960-01-14 Norddeutsche Mende Rundfunk K.G., Bremen-Hemelingen Anordnung zur Regelung der Lautstärke von elektroakustischen Wiedergabesystemen in Geräten zur stereophonischen Klangwiedergabe
FR1233363A (fr) * 1958-09-09 1960-10-12 Telefunken Gmbh Installation de haut-parleurs pour reproduire à volonté des auditions à deux canaux ou à un seul canal
US3164676A (en) * 1961-03-13 1965-01-05 Philco Corp Stereophonic system employing audio matrixing
DE2046776A1 (de) * 1970-09-23 1972-03-30 Hentschke S Interferenzlautsprechersystem zur stereophonen Wiedergabe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073037B (de) * 1960-01-14 Norddeutsche Mende Rundfunk K.G., Bremen-Hemelingen Anordnung zur Regelung der Lautstärke von elektroakustischen Wiedergabesystemen in Geräten zur stereophonischen Klangwiedergabe
FR1233363A (fr) * 1958-09-09 1960-10-12 Telefunken Gmbh Installation de haut-parleurs pour reproduire à volonté des auditions à deux canaux ou à un seul canal
US3164676A (en) * 1961-03-13 1965-01-05 Philco Corp Stereophonic system employing audio matrixing
DE2046776A1 (de) * 1970-09-23 1972-03-30 Hentschke S Interferenzlautsprechersystem zur stereophonen Wiedergabe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987003771A1 (en) * 1985-12-06 1987-06-18 Sparkjaer Ole A method and a circuit for decoding four-channel signals which are coded in a matrix and available in the form of a two-channel signal
US4850021A (en) * 1985-12-06 1989-07-18 Sparkjaer Ole Method and a circuit for decoding four channel signals which are coded in a matrix and available in the form of a two-channel signal

Also Published As

Publication number Publication date
NL180557C (nl) 1987-03-02
US3849600A (en) 1974-11-19
FR2203250B1 (cs) 1978-01-06
DE2351423A1 (de) 1974-04-25
DE2351423C2 (de) 1985-05-30
IT995830B (it) 1975-11-20
CA982057A (en) 1976-01-20
NL7314187A (cs) 1974-04-16
GB1425519A (en) 1976-02-18
NL180557B (nl) 1986-10-01
JPS4974801U (cs) 1974-06-28
JPS5251764Y2 (cs) 1977-11-25

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Legal Events

Date Code Title Description
ST Notification of lapse