CA997278A - Discrete 4-channel stereo recording and/or reproducing system - Google Patents

Discrete 4-channel stereo recording and/or reproducing system

Info

Publication number
CA997278A
CA997278A CA172,688A CA172688A CA997278A CA 997278 A CA997278 A CA 997278A CA 172688 A CA172688 A CA 172688A CA 997278 A CA997278 A CA 997278A
Authority
CA
Canada
Prior art keywords
discrete
reproducing system
channel stereo
stereo recording
recording
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
CA172,688A
Other languages
English (en)
Other versions
CA172688S (en
Inventor
Keiichiro Ogura
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.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia Co Ltd
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 JP5362172A external-priority patent/JPS535801B2/ja
Priority claimed from JP47053622A external-priority patent/JPS4911102A/ja
Priority claimed from JP47057230A external-priority patent/JPS5228561B2/ja
Priority claimed from JP5723272A external-priority patent/JPS535802B2/ja
Priority claimed from JP47057231A external-priority patent/JPS5228562B2/ja
Priority claimed from JP47059844A external-priority patent/JPS4921102A/ja
Application filed by Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Application granted granted Critical
Publication of CA997278A publication Critical patent/CA997278A/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/006—Systems employing more than two channels, e.g. quadraphonic in which a plurality of audio signals are transformed in a combination of audio signals and modulated signals, e.g. CD-4 systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Multimedia (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CA172,688A 1972-05-30 1973-05-29 Discrete 4-channel stereo recording and/or reproducing system Expired CA997278A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP5362172A JPS535801B2 (de) 1972-05-30 1972-05-30
JP47053622A JPS4911102A (de) 1972-05-30 1972-05-30
JP47057230A JPS5228561B2 (de) 1972-06-08 1972-06-08
JP5723272A JPS535802B2 (de) 1972-06-08 1972-06-08
JP47057231A JPS5228562B2 (de) 1972-06-08 1972-06-08
JP47059844A JPS4921102A (de) 1972-06-15 1972-06-15

Publications (1)

Publication Number Publication Date
CA997278A true CA997278A (en) 1976-09-21

Family

ID=27550529

Family Applications (1)

Application Number Title Priority Date Filing Date
CA172,688A Expired CA997278A (en) 1972-05-30 1973-05-29 Discrete 4-channel stereo recording and/or reproducing system

Country Status (4)

Country Link
US (1) US4115666A (de)
CA (1) CA997278A (de)
DE (1) DE2327725C2 (de)
GB (1) GB1416631A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2409257C2 (de) * 1974-02-27 1982-06-03 Loewe Opta Gmbh, 8640 Kronach Zusatzgerät für ein Stereo-Steuergerät zur vierkanaligen Wiedergabe von Stereo- und/oder Quadrophoniedarbietungen
US4266093A (en) * 1979-03-09 1981-05-05 Cbs Inc. Compatible four channel radio broadcast and receiving system
US4426728A (en) * 1981-08-31 1984-01-17 Kahn Leonard R Multiple system AM stereo receiver and pilot signal detector
JPH0623119Y2 (ja) * 1989-01-24 1994-06-15 パイオニア株式会社 サラウンド方式ステレオ再生装置
US5463424A (en) * 1993-08-03 1995-10-31 Dolby Laboratories Licensing Corporation Multi-channel transmitter/receiver system providing matrix-decoding compatible signals
EP0866638B1 (de) * 1997-03-10 2011-06-15 Panasonic Corporation Audiovisueller Verstärker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA938560A (en) * 1969-11-28 1973-12-18 Victor Company Of Japan System for recording and/or reproducing four channel signals on a record disc
US3745252A (en) * 1971-02-03 1973-07-10 Columbia Broadcasting Syst Inc Matrixes and decoders for quadruphonic records
US3787622A (en) * 1971-02-05 1974-01-22 Sansui Electric Co Quadrasonic sound system for two channel transmission
JPS5228361B2 (de) * 1972-03-09 1977-07-26
US3761628A (en) * 1972-04-13 1973-09-25 Columbia Broadcasting Syst Inc Stereo-quadraphonic matrix system with matrix or discrete sound reproduction capability
JPS4911303A (de) * 1972-05-31 1974-01-31

Also Published As

Publication number Publication date
US4115666A (en) 1978-09-19
GB1416631A (en) 1975-12-03
DE2327725A1 (de) 1973-12-20
DE2327725C2 (de) 1982-01-28

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