DE2355888C3 - Codiersystem zur Erzeugung zweikanaliger Signale aus mehreren Tonsignalen - Google Patents

Codiersystem zur Erzeugung zweikanaliger Signale aus mehreren Tonsignalen

Info

Publication number
DE2355888C3
DE2355888C3 DE2355888A DE2355888A DE2355888C3 DE 2355888 C3 DE2355888 C3 DE 2355888C3 DE 2355888 A DE2355888 A DE 2355888A DE 2355888 A DE2355888 A DE 2355888A DE 2355888 C3 DE2355888 C3 DE 2355888C3
Authority
DE
Germany
Prior art keywords
channel
signal
signals
phase shift
phase
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
DE2355888A
Other languages
German (de)
English (en)
Other versions
DE2355888A1 (de
DE2355888B2 (de
Inventor
Susumu Tokio Takahashi
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 DE2355888A1 publication Critical patent/DE2355888A1/de
Publication of DE2355888B2 publication Critical patent/DE2355888B2/de
Application granted granted Critical
Publication of DE2355888C3 publication Critical patent/DE2355888C3/de
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)
DE2355888A 1972-12-29 1973-11-08 Codiersystem zur Erzeugung zweikanaliger Signale aus mehreren Tonsignalen Expired DE2355888C3 (de)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
DE2355888A1 DE2355888A1 (de) 1974-07-11
DE2355888B2 DE2355888B2 (de) 1975-03-20
DE2355888C3 true DE2355888C3 (de) 1975-10-23

Family

ID=11538671

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2355888A Expired DE2355888C3 (de) 1972-12-29 1973-11-08 Codiersystem zur Erzeugung zweikanaliger Signale aus mehreren Tonsignalen

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
DE2355888A1 (de) 1974-07-11
JPS4991401A (enrdf_load_stackoverflow) 1974-08-31
JPS5246681B2 (enrdf_load_stackoverflow) 1977-11-26
DE2355888B2 (de) 1975-03-20
GB1422832A (en) 1976-01-28

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee