JPS5653457Y2 - - Google Patents

Info

Publication number
JPS5653457Y2
JPS5653457Y2 JP1973003987U JP398773U JPS5653457Y2 JP S5653457 Y2 JPS5653457 Y2 JP S5653457Y2 JP 1973003987 U JP1973003987 U JP 1973003987U JP 398773 U JP398773 U JP 398773U JP S5653457 Y2 JPS5653457 Y2 JP S5653457Y2
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.)
Expired
Application number
JP1973003987U
Other languages
Japanese (ja)
Other versions
JPS49108017U (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 JP1973003987U priority Critical patent/JPS5653457Y2/ja
Priority to US424306A priority patent/US3914790A/en
Priority to GB5782373A priority patent/GB1430210A/en
Priority to NL7317350A priority patent/NL7317350A/xx
Priority to FR7345603A priority patent/FR2221779B1/fr
Priority to DE2364480A priority patent/DE2364480A1/de
Priority to CA189,129A priority patent/CA981590A/en
Publication of JPS49108017U publication Critical patent/JPS49108017U/ja
Application granted granted Critical
Publication of JPS5653457Y2 publication Critical patent/JPS5653457Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00992—Circuits for stereophonic or quadraphonic recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Algebra (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Otolaryngology (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
  • Electric Clocks (AREA)
  • Stereophonic System (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
JP1973003987U 1972-12-29 1972-12-29 Expired JPS5653457Y2 (en])

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP1973003987U JPS5653457Y2 (en]) 1972-12-29 1972-12-29
US424306A US3914790A (en) 1972-12-29 1973-12-13 Four-channel stereo apparatus for switching between two channel and four channel inputs
GB5782373A GB1430210A (en) 1972-12-29 1973-12-13 Sound reproducing apparatus
NL7317350A NL7317350A (en]) 1972-12-29 1973-12-18
FR7345603A FR2221779B1 (en]) 1972-12-29 1973-12-19
DE2364480A DE2364480A1 (de) 1972-12-29 1973-12-24 Vierkanal-magnetaufzeichnungs- und wiedergabegeraet
CA189,129A CA981590A (en) 1972-12-29 1973-12-28 Four-channel stereo apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973003987U JPS5653457Y2 (en]) 1972-12-29 1972-12-29

Publications (2)

Publication Number Publication Date
JPS49108017U JPS49108017U (en]) 1974-09-14
JPS5653457Y2 true JPS5653457Y2 (en]) 1981-12-12

Family

ID=11572361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1973003987U Expired JPS5653457Y2 (en]) 1972-12-29 1972-12-29

Country Status (7)

Country Link
US (1) US3914790A (en])
JP (1) JPS5653457Y2 (en])
CA (1) CA981590A (en])
DE (1) DE2364480A1 (en])
FR (1) FR2221779B1 (en])
GB (1) GB1430210A (en])
NL (1) NL7317350A (en])

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527708A (en) * 1975-07-08 1977-01-21 Sony Corp Tape recorder
US4479235A (en) * 1981-05-08 1984-10-23 Rca Corporation Switching arrangement for a stereophonic sound synthesizer
JPH04265569A (ja) * 1991-02-19 1992-09-21 Canon Inc 音声信号記録装置及び再生装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730532A (en) * 1970-06-09 1973-05-01 Victor Company Of Japan Combination four-channel two-channel stereophonic endless cartridge tape player
US3684835A (en) * 1970-07-29 1972-08-15 Parasound Inc Four channel stereo synthesizer
US3761628A (en) * 1972-04-13 1973-09-25 Columbia Broadcasting Syst Inc Stereo-quadraphonic matrix system with matrix or discrete sound reproduction capability

Also Published As

Publication number Publication date
GB1430210A (en) 1976-03-31
FR2221779A1 (en]) 1974-10-11
CA981590A (en) 1976-01-13
JPS49108017U (en]) 1974-09-14
US3914790A (en) 1975-10-21
DE2364480A1 (de) 1974-07-04
FR2221779B1 (en]) 1977-06-10
NL7317350A (en]) 1974-07-02

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