CA977688A - Multisound reproducing apparatus - Google Patents

Multisound reproducing apparatus

Info

Publication number
CA977688A
CA977688A CA148,658A CA148658A CA977688A CA 977688 A CA977688 A CA 977688A CA 148658 A CA148658 A CA 148658A CA 977688 A CA977688 A CA 977688A
Authority
CA
Canada
Prior art keywords
multisound
reproducing apparatus
reproducing
multisound reproducing
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
Application number
CA148,658A
Other languages
English (en)
Other versions
CA148658S (en
Inventor
Katsuaki Tsurushima
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
Priority claimed from JP46059483A external-priority patent/JPS5213083B2/ja
Priority claimed from JP46062104A external-priority patent/JPS52685B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA977688A publication Critical patent/CA977688A/en
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
    • 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)
  • Circuit For Audible Band Transducer (AREA)
CA148,658A 1971-08-06 1972-08-03 Multisound reproducing apparatus Expired CA977688A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP46059483A JPS5213083B2 (fr) 1971-08-06 1971-08-06
JP46062104A JPS52685B2 (fr) 1971-08-16 1971-08-16

Publications (1)

Publication Number Publication Date
CA977688A true CA977688A (en) 1975-11-11

Family

ID=26400529

Family Applications (1)

Application Number Title Priority Date Filing Date
CA148,658A Expired CA977688A (en) 1971-08-06 1972-08-03 Multisound reproducing apparatus

Country Status (7)

Country Link
US (1) US3911220A (fr)
CA (1) CA977688A (fr)
DE (1) DE2238346A1 (fr)
FR (1) FR2148524B1 (fr)
GB (1) GB1398786A (fr)
IT (1) IT963789B (fr)
NL (1) NL7210757A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5645358B2 (fr) * 1973-11-29 1981-10-26
JPS5230402A (en) * 1975-09-04 1977-03-08 Victor Co Of Japan Ltd Multichannel stereo system
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
JPH0537478A (ja) * 1991-07-31 1993-02-12 Fujitsu Ten Ltd 音場制御装置
US5661808A (en) 1995-04-27 1997-08-26 Srs Labs, Inc. Stereo 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
WO2014190140A1 (fr) 2013-05-23 2014-11-27 Alan Kraemer Système d'amélioration audio d'écouteur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632886A (en) * 1969-12-29 1972-01-04 Peter Scheiber Quadrasonic sound system
US3708631A (en) * 1970-06-08 1973-01-02 Columbia Broadcasting Syst Inc Quadraphonic reproducing system with gain control
US3798373A (en) * 1971-06-23 1974-03-19 Columbia Broadcasting Syst Inc Apparatus for reproducing quadraphonic sound

Also Published As

Publication number Publication date
NL7210757A (fr) 1973-02-08
US3911220A (en) 1975-10-07
DE2238346A1 (de) 1973-02-22
GB1398786A (en) 1975-06-25
IT963789B (it) 1974-01-21
FR2148524A1 (fr) 1973-03-23
FR2148524B1 (fr) 1977-07-22

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