JPS4869501A - - Google Patents

Info

Publication number
JPS4869501A
JPS4869501A JP46103970A JP10397071A JPS4869501A JP S4869501 A JPS4869501 A JP S4869501A JP 46103970 A JP46103970 A JP 46103970A JP 10397071 A JP10397071 A JP 10397071A JP S4869501 A JPS4869501 A JP S4869501A
Authority
JP
Japan
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
JP46103970A
Other languages
Japanese (ja)
Other versions
JPS5313962B2 (en
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 filed Critical
Priority to JP10397071A priority Critical patent/JPS5313962B2/ja
Priority to US315928A priority patent/US3885101A/en
Priority to GB5875772A priority patent/GB1402474A/en
Priority to NL7217342.A priority patent/NL163939C/en
Priority to DE2262761A priority patent/DE2262761C3/en
Publication of JPS4869501A publication Critical patent/JPS4869501A/ja
Priority to US428423A priority patent/US3889061A/en
Publication of JPS5313962B2 publication Critical patent/JPS5313962B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
JP10397071A 1971-12-21 1971-12-21 Expired JPS5313962B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP10397071A JPS5313962B2 (en) 1971-12-21 1971-12-21
US315928A US3885101A (en) 1971-12-21 1972-12-18 Signal converting systems for use in stereo reproducing systems
GB5875772A GB1402474A (en) 1971-12-21 1972-12-20 Sound reproduction systems
NL7217342.A NL163939C (en) 1971-12-21 1972-12-20 SIGNAL CONVERSION SYSTEM.
DE2262761A DE2262761C3 (en) 1971-12-21 1972-12-21 Arrangement for generating four audio signals from two-channel stereo signals
US428423A US3889061A (en) 1971-12-21 1973-12-26 Four-channel reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10397071A JPS5313962B2 (en) 1971-12-21 1971-12-21

Publications (2)

Publication Number Publication Date
JPS4869501A true JPS4869501A (en) 1973-09-21
JPS5313962B2 JPS5313962B2 (en) 1978-05-13

Family

ID=14368190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10397071A Expired JPS5313962B2 (en) 1971-12-21 1971-12-21

Country Status (5)

Country Link
US (1) US3885101A (en)
JP (1) JPS5313962B2 (en)
DE (1) DE2262761C3 (en)
GB (1) GB1402474A (en)
NL (1) NL163939C (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1494751A (en) * 1974-03-26 1977-12-14 Nat Res Dev Sound reproduction systems
US3971890A (en) * 1975-02-10 1976-07-27 Cbs Inc. Method and apparatus for quadraphonic enhancement of stereophonic signals
GB1550627A (en) * 1975-11-13 1979-08-15 Nat Res Dev Sound reproduction systems
JPS56102625A (en) * 1980-01-19 1981-08-17 Matsushita Electric Ind Co Ltd Cooker
US5412731A (en) * 1982-11-08 1995-05-02 Desper Products, Inc. Automatic stereophonic manipulation system and apparatus for image enhancement
US4589129A (en) * 1984-02-21 1986-05-13 Kintek, Inc. Signal decoding system
US4612663A (en) * 1984-03-26 1986-09-16 Holbrook Kyle A Multichannel audio reproduction system
US5046098A (en) * 1985-03-07 1991-09-03 Dolby Laboratories Licensing Corporation Variable matrix decoder with three output channels
US4799260A (en) * 1985-03-07 1989-01-17 Dolby Laboratories Licensing Corporation Variable matrix decoder
US4819269A (en) * 1987-07-21 1989-04-04 Hughes Aircraft Company Extended imaging split mode loudspeaker system
US4910778A (en) * 1987-10-16 1990-03-20 Barton Geoffrey J Signal enhancement processor for stereo 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
US5708719A (en) * 1995-09-07 1998-01-13 Rep Investment Limited Liability Company In-home theater surround sound speaker system
US5930370A (en) * 1995-09-07 1999-07-27 Rep Investment Limited Liability In-home theater surround sound speaker system
US6118876A (en) * 1995-09-07 2000-09-12 Rep Investment Limited Liability Company Surround sound speaker system for improved spatial effects
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
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
JP2007208679A (en) * 2006-02-02 2007-08-16 Matsushita Electric Ind Co Ltd Sound reproduction device
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system
CN103329571B (en) 2011-01-04 2016-08-10 Dts有限责任公司 Immersion audio presentation systems
WO2014190140A1 (en) 2013-05-23 2014-11-27 Alan Kraemer Headphone audio enhancement system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329772A (en) * 1963-10-28 1967-07-04 John H Farrell Binaural simulator
US3170991A (en) * 1963-11-27 1965-02-23 Glasgal Ralph System for stereo separation ratio control, elimination of cross-talk and the like
US3718773A (en) * 1970-05-18 1973-02-27 Barnard R Four channel recording and reproducing system
US3757047A (en) * 1970-05-21 1973-09-04 Sansui Electric Co Four channel sound reproduction system
US3684835A (en) * 1970-07-29 1972-08-15 Parasound Inc Four channel stereo synthesizer
CA942198A (en) * 1970-09-15 1974-02-19 Kazuho Ohta Multidimensional stereophonic reproducing system
NL172815B (en) * 1971-04-13 Sony Corp MULTIPLE SOUND DISPLAY DEVICE.
US3697692A (en) * 1971-06-10 1972-10-10 Dynaco Inc Two-channel,four-component stereophonic system
US3710023A (en) * 1971-09-27 1973-01-09 Int Technical Dev Corp Sound reproducing system for a four speaker stereo utilizing signal expansion and signal delay

Also Published As

Publication number Publication date
DE2262761A1 (en) 1973-07-05
NL163939C (en) 1980-10-15
DE2262761C3 (en) 1981-04-09
DE2262761B2 (en) 1980-08-21
JPS5313962B2 (en) 1978-05-13
GB1402474A (en) 1975-08-06
NL7217342A (en) 1973-06-25
US3885101A (en) 1975-05-20

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