GB1430139A - Decoder apparatus with logic circuit for use with four channel ste reo - Google Patents

Decoder apparatus with logic circuit for use with four channel ste reo

Info

Publication number
GB1430139A
GB1430139A GB2792473A GB2792473A GB1430139A GB 1430139 A GB1430139 A GB 1430139A GB 2792473 A GB2792473 A GB 2792473A GB 2792473 A GB2792473 A GB 2792473A GB 1430139 A GB1430139 A GB 1430139A
Authority
GB
United Kingdom
Prior art keywords
signals
channels
centre
channel
decoder
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
GB2792473A
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of GB1430139A publication Critical patent/GB1430139A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
GB2792473A 1972-06-16 1973-06-12 Decoder apparatus with logic circuit for use with four channel ste reo Expired GB1430139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6010072A JPS55960B2 (https=) 1972-06-16 1972-06-16

Publications (1)

Publication Number Publication Date
GB1430139A true GB1430139A (en) 1976-03-31

Family

ID=13132325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2792473A Expired GB1430139A (en) 1972-06-16 1973-06-12 Decoder apparatus with logic circuit for use with four channel ste reo

Country Status (5)

Country Link
JP (1) JPS55960B2 (https=)
BR (1) BR7304472D0 (https=)
CA (1) CA982056A (https=)
DE (1) DE2330577C2 (https=)
GB (1) GB1430139A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154835A (en) * 1984-02-21 1985-09-11 Kintek Inc Signal decoding system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522599A (en) * 1974-11-16 1978-08-23 Dolby Laboratories Inc Centre channel derivation for stereophonic cinema sound
JPS6031220U (ja) * 1983-08-09 1985-03-02 株式会社クボタ コンバインの刈取部保護装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154835A (en) * 1984-02-21 1985-09-11 Kintek Inc Signal decoding system

Also Published As

Publication number Publication date
DE2330577C2 (de) 1983-01-20
CA982056A (en) 1976-01-20
JPS55960B2 (https=) 1980-01-10
JPS4922101A (https=) 1974-02-27
DE2330577A1 (de) 1974-01-03
BR7304472D0 (pt) 1974-09-05

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Legal Events

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