GB1395477A - Sound signal-converting apparatus for use in a four-channel stereophonic reproduction system - Google Patents

Sound signal-converting apparatus for use in a four-channel stereophonic reproduction system

Info

Publication number
GB1395477A
GB1395477A GB2053473A GB2053473A GB1395477A GB 1395477 A GB1395477 A GB 1395477A GB 2053473 A GB2053473 A GB 2053473A GB 2053473 A GB2053473 A GB 2053473A GB 1395477 A GB1395477 A GB 1395477A
Authority
GB
United Kingdom
Prior art keywords
signals
resistors
impedance
circuit
capacitor
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
GB2053473A
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 GB1395477A publication Critical patent/GB1395477A/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 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
    • 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)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
GB2053473A 1972-05-02 1973-04-30 Sound signal-converting apparatus for use in a four-channel stereophonic reproduction system Expired GB1395477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47043991A JPS5210364B2 (enrdf_load_stackoverflow) 1972-05-02 1972-05-02

Publications (1)

Publication Number Publication Date
GB1395477A true GB1395477A (en) 1975-05-29

Family

ID=12679170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2053473A Expired GB1395477A (en) 1972-05-02 1973-04-30 Sound signal-converting apparatus for use in a four-channel stereophonic reproduction system

Country Status (4)

Country Link
US (1) US3892918A (enrdf_load_stackoverflow)
JP (1) JPS5210364B2 (enrdf_load_stackoverflow)
DE (1) DE2322145C2 (enrdf_load_stackoverflow)
GB (1) GB1395477A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2127135A1 (es) * 1997-04-23 1999-04-01 Lera Jose Maria Lopez Sistema de audicion.

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4915401A (enrdf_load_stackoverflow) * 1972-05-19 1974-02-09
GB1494751A (en) * 1974-03-26 1977-12-14 Nat Res Dev Sound reproduction systems
US3971890A (en) * 1975-02-10 1976-07-27 Cbs Inc. Method and apparatus for quadraphonic enhancement of stereophonic signals
GB1550627A (en) * 1975-11-13 1979-08-15 Nat Res Dev Sound reproduction systems
JPS61235498A (ja) * 1981-01-26 1986-10-20 エチル・ペトロレウム・アデイテイブス・インコーポレーテッド 燃料および潤滑油用添加剤
US5046098A (en) * 1985-03-07 1991-09-03 Dolby Laboratories Licensing Corporation Variable matrix decoder with three output channels
US4799260A (en) * 1985-03-07 1989-01-17 Dolby Laboratories Licensing Corporation Variable matrix decoder
KR100909971B1 (ko) 2000-12-22 2009-07-29 코닌클리케 필립스 일렉트로닉스 엔.브이. 다중-채널 오디오 변환기
US20050152556A1 (en) * 2004-01-09 2005-07-14 Masonware Partners Llc Passive surround sound adapter
US20060150047A1 (en) * 2004-12-30 2006-07-06 Wolfgang Nikutta Apparatus and method for generating a high-frequency signal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813494A (en) * 1970-06-08 1974-05-28 Columbia Broadcasting Syst Inc Quadraphonic reproducing system
US3745252A (en) * 1971-02-03 1973-07-10 Columbia Broadcasting Syst Inc Matrixes and decoders for quadruphonic records
NL172815B (nl) * 1971-04-13 Sony Corp Meervoudige geluidweergeefinrichting.
JPS5213082B1 (enrdf_load_stackoverflow) * 1971-07-19 1977-04-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2127135A1 (es) * 1997-04-23 1999-04-01 Lera Jose Maria Lopez Sistema de audicion.

Also Published As

Publication number Publication date
JPS495601A (enrdf_load_stackoverflow) 1974-01-18
JPS5210364B2 (enrdf_load_stackoverflow) 1977-03-23
DE2322145C2 (de) 1986-03-27
DE2322145A1 (de) 1973-11-08
US3892918A (en) 1975-07-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee