JPS4889702A - - Google Patents

Info

Publication number
JPS4889702A
JPS4889702A JP47018949A JP1894972A JPS4889702A JP S4889702 A JPS4889702 A JP S4889702A JP 47018949 A JP47018949 A JP 47018949A JP 1894972 A JP1894972 A JP 1894972A JP S4889702 A JPS4889702 A JP S4889702A
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.)
Pending
Application number
JP47018949A
Other languages
Japanese (ja)
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 JP47018949A priority Critical patent/JPS4889702A/ja
Priority to DE19732309591 priority patent/DE2309591C3/de
Priority to US335741A priority patent/US3925615A/en
Publication of JPS4889702A publication Critical patent/JPS4889702A/ja
Pending 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
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
JP47018949A 1972-02-25 1972-02-25 Pending JPS4889702A (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP47018949A JPS4889702A (it) 1972-02-25 1972-02-25
DE19732309591 DE2309591C3 (de) 1972-02-25 1973-02-26 Schaltung zur kodierung und dekodierung mehrkanaliger tonsignale
US335741A US3925615A (en) 1972-02-25 1973-02-26 Multi-channel sound signal generating and reproducing circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47018949A JPS4889702A (it) 1972-02-25 1972-02-25

Publications (1)

Publication Number Publication Date
JPS4889702A true JPS4889702A (it) 1973-11-22

Family

ID=11985886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47018949A Pending JPS4889702A (it) 1972-02-25 1972-02-25

Country Status (3)

Country Link
US (1) US3925615A (it)
JP (1) JPS4889702A (it)
DE (1) DE2309591C3 (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159397A (en) * 1977-05-08 1979-06-26 Victor Company Of Japan, Limited Acoustic translation of quadraphonic signals for two- and four-speaker sound reproduction
US4567607A (en) * 1983-05-03 1986-01-28 Stereo Concepts, Inc. Stereo image recovery
US4748669A (en) * 1986-03-27 1988-05-31 Hughes Aircraft Company Stereo enhancement 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
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
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system
WO2012094338A1 (en) 2011-01-04 2012-07-12 Srs Labs, Inc. Immersive audio rendering system
US9258664B2 (en) 2013-05-23 2016-02-09 Comhear, Inc. Headphone audio enhancement system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746792A (en) * 1968-01-11 1973-07-17 P Scheiber Multidirectional sound system
US3632886A (en) * 1969-12-29 1972-01-04 Peter Scheiber Quadrasonic sound system
GB1359509A (en) * 1970-06-15 1974-07-10 Scheiber P Decoder apparatus for use in a multidirectional sound system
US3745252A (en) * 1971-02-03 1973-07-10 Columbia Broadcasting Syst Inc Matrixes and decoders for quadruphonic records

Also Published As

Publication number Publication date
US3925615A (en) 1975-12-09
DE2309591A1 (de) 1973-09-13
DE2309591B2 (de) 1976-11-11
USB335741I5 (it) 1975-01-28
DE2309591C3 (de) 1977-06-16

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