GB1455786A - Decoder apparatus for a 4-channel matrix system - Google Patents

Decoder apparatus for a 4-channel matrix system

Info

Publication number
GB1455786A
GB1455786A GB667974A GB667974A GB1455786A GB 1455786 A GB1455786 A GB 1455786A GB 667974 A GB667974 A GB 667974A GB 667974 A GB667974 A GB 667974A GB 1455786 A GB1455786 A GB 1455786A
Authority
GB
United Kingdom
Prior art keywords
control
input
difference
variable
coefficient
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
GB667974A
Other languages
English (en)
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.)
Sansui Electric Co Ltd
Original Assignee
Sansui Electric 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
Application filed by Sansui Electric Co Ltd filed Critical Sansui Electric Co Ltd
Publication of GB1455786A publication Critical patent/GB1455786A/en
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)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Multimedia (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
GB667974A 1973-02-21 1974-02-14 Decoder apparatus for a 4-channel matrix system Expired GB1455786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48020803A JPS5246682B2 (enrdf_load_stackoverflow) 1973-02-21 1973-02-21

Publications (1)

Publication Number Publication Date
GB1455786A true GB1455786A (en) 1976-11-17

Family

ID=12037194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB667974A Expired GB1455786A (en) 1973-02-21 1974-02-14 Decoder apparatus for a 4-channel matrix system

Country Status (3)

Country Link
JP (1) JPS5246682B2 (enrdf_load_stackoverflow)
DE (1) DE2408141A1 (enrdf_load_stackoverflow)
GB (1) GB1455786A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52119631U (enrdf_load_stackoverflow) * 1976-03-08 1977-09-10
US4479235A (en) * 1981-05-08 1984-10-23 Rca Corporation Switching arrangement for a stereophonic sound synthesizer
IT1209458B (it) * 1981-05-08 1989-08-30 Rca Corp Complesso di commutazione per un sintetizzatore audio stereofonico.

Also Published As

Publication number Publication date
DE2408141A1 (de) 1974-09-05
JPS49111603A (enrdf_load_stackoverflow) 1974-10-24
JPS5246682B2 (enrdf_load_stackoverflow) 1977-11-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee