GB1360411A - Sound reproducing systems - Google Patents

Sound reproducing systems

Info

Publication number
GB1360411A
GB1360411A GB4151271A GB4151271A GB1360411A GB 1360411 A GB1360411 A GB 1360411A GB 4151271 A GB4151271 A GB 4151271A GB 4151271 A GB4151271 A GB 4151271A GB 1360411 A GB1360411 A GB 1360411A
Authority
GB
United Kingdom
Prior art keywords
signals
amplifiers
networks
lines
information
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
GB4151271A
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.)
CBS Broadcasting Inc
Original Assignee
Columbia Broadcasting System Inc
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 Columbia Broadcasting System Inc filed Critical Columbia Broadcasting System Inc
Publication of GB1360411A publication Critical patent/GB1360411A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
GB4151271A 1970-10-19 1971-09-06 Sound reproducing systems Expired GB1360411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8185870A 1970-10-19 1970-10-19

Publications (1)

Publication Number Publication Date
GB1360411A true GB1360411A (en) 1974-07-17

Family

ID=22166858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4151271A Expired GB1360411A (en) 1970-10-19 1971-09-06 Sound reproducing systems

Country Status (6)

Country Link
BE (1) BE772298A (fr)
CA (1) CA974457A (fr)
FR (1) FR2109754A5 (fr)
GB (1) GB1360411A (fr)
IL (1) IL37872A (fr)
NL (1) NL7108370A (fr)

Also Published As

Publication number Publication date
AU3214771A (en) 1973-02-15
IL37872A (en) 1973-11-28
NL7108370A (fr) 1972-04-21
DE2139098B2 (de) 1976-11-25
CA974457A (en) 1975-09-16
IL37872A0 (en) 1971-12-29
BE772298A (fr) 1972-03-17
FR2109754A5 (fr) 1972-05-26
DE2139098A1 (de) 1972-04-20

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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