JPS4991401A - - Google Patents

Info

Publication number
JPS4991401A
JPS4991401A JP48002774A JP277473A JPS4991401A JP S4991401 A JPS4991401 A JP S4991401A JP 48002774 A JP48002774 A JP 48002774A JP 277473 A JP277473 A JP 277473A JP S4991401 A JPS4991401 A JP S4991401A
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.)
Granted
Application number
JP48002774A
Other languages
Japanese (ja)
Other versions
JPS5246681B2 (enrdf_load_stackoverflow
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 JP732774A priority Critical patent/JPS5246681B2/ja
Priority to GB5164073A priority patent/GB1422832A/en
Priority to DE2355888A priority patent/DE2355888C3/de
Priority to US00414512A priority patent/US3845245A/en
Publication of JPS4991401A publication Critical patent/JPS4991401A/ja
Publication of JPS5246681B2 publication Critical patent/JPS5246681B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
    • 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)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Algebra (AREA)
  • Multimedia (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
JP732774A 1972-12-29 1972-12-29 Expired JPS5246681B2 (enrdf_load_stackoverflow)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP732774A JPS5246681B2 (enrdf_load_stackoverflow) 1972-12-29 1972-12-29
GB5164073A GB1422832A (en) 1972-12-29 1973-11-07 Encoding system for forming 2-channel signals from a plurality of sound signals
DE2355888A DE2355888C3 (de) 1972-12-29 1973-11-08 Codiersystem zur Erzeugung zweikanaliger Signale aus mehreren Tonsignalen
US00414512A US3845245A (en) 1972-12-29 1973-11-09 Encoding system for forming two-channel signals from a plurality of sound signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP732774A JPS5246681B2 (enrdf_load_stackoverflow) 1972-12-29 1972-12-29

Publications (2)

Publication Number Publication Date
JPS4991401A true JPS4991401A (enrdf_load_stackoverflow) 1974-08-31
JPS5246681B2 JPS5246681B2 (enrdf_load_stackoverflow) 1977-11-26

Family

ID=11538671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP732774A Expired JPS5246681B2 (enrdf_load_stackoverflow) 1972-12-29 1972-12-29

Country Status (4)

Country Link
US (1) US3845245A (enrdf_load_stackoverflow)
JP (1) JPS5246681B2 (enrdf_load_stackoverflow)
DE (1) DE2355888C3 (enrdf_load_stackoverflow)
GB (1) GB1422832A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56143131U (enrdf_load_stackoverflow) * 1980-03-28 1981-10-28
US4577305A (en) * 1983-03-14 1986-03-18 Dolby Laboratories Licensing Corporation Stereophonic motion picture photographic sound-tracks compatible with different sound projection formats and record and playback apparatus therefore
JP2580117B2 (ja) * 1985-12-18 1997-02-12 ソニー株式会社 再生装置における音場拡大装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS4944884B1 (enrdf_load_stackoverflow) * 1971-07-02 1974-11-30

Also Published As

Publication number Publication date
US3845245A (en) 1974-10-29
DE2355888C3 (de) 1975-10-23
DE2355888A1 (de) 1974-07-11
JPS5246681B2 (enrdf_load_stackoverflow) 1977-11-26
DE2355888B2 (de) 1975-03-20
GB1422832A (en) 1976-01-28

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