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CA989743A - Quadruphonic recording and reproducing system - Google Patents

Quadruphonic recording and reproducing system

Info

Publication number
CA989743A
CA989743A CA111,590A CA111590A CA989743A CA 989743 A CA989743 A CA 989743A CA 111590 A CA111590 A CA 111590A CA 989743 A CA989743 A CA 989743A
Authority
CA
Canada
Prior art keywords
quadruphonic
recording
reproducing system
reproducing
quadruphonic 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
CA111,590A
Inventor
Benjamin B. Bauer
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.)
CBS Broadcasting Inc
Original Assignee
CBS Inc
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 CBS Inc filed Critical CBS Inc
Priority to CA160,468A priority Critical patent/CA944281A/en
Priority to CA180,576A priority patent/CA989744A/en
Application granted granted Critical
Publication of CA989743A publication Critical patent/CA989743A/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)
  • Stereo-Broadcasting Methods (AREA)
CA111,590A 1970-06-08 1971-04-28 Quadruphonic recording and reproducing system Expired CA989743A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA160,468A CA944281A (en) 1970-06-08 1973-01-03 Stereo-quadraphonic disc record
CA180,576A CA989744A (en) 1970-06-08 1973-09-10 Quadraphonic sound reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4422470A 1970-06-08 1970-06-08

Publications (1)

Publication Number Publication Date
CA989743A true CA989743A (en) 1976-05-25

Family

ID=21931168

Family Applications (1)

Application Number Title Priority Date Filing Date
CA111,590A Expired CA989743A (en) 1970-06-08 1971-04-28 Quadruphonic recording and reproducing system

Country Status (6)

Country Link
JP (4) JPS5017844B1 (en)
BE (1) BE768242A (en)
CA (1) CA989743A (en)
FR (1) FR2094123B1 (en)
GB (1) GB1347993A (en)
NL (1) NL161645C (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI3A (en) * 1843-11-08 Press members

Also Published As

Publication number Publication date
FR2094123B1 (en) 1976-05-28
JPS5135841B2 (en) 1976-10-05
GB1347993A (en) 1974-02-27
JPS5017844B1 (en) 1975-06-24
NL161645B (en) 1979-09-17
JPS5111481B2 (en) 1976-04-12
BE768242A (en) 1971-12-08
NL7106548A (en) 1971-12-10
JPS50132902A (en) 1975-10-21
DE2126432A1 (en) 1972-03-02
FR2094123A1 (en) 1972-02-04
JPS50132903A (en) 1975-10-21
DE2126432B2 (en) 1976-02-19
NL161645C (en) 1980-02-15
JPS50132904A (en) 1975-10-21

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