FR2218702A1 - - Google Patents

Info

Publication number
FR2218702A1
FR2218702A1 FR7405946A FR7405946A FR2218702A1 FR 2218702 A1 FR2218702 A1 FR 2218702A1 FR 7405946 A FR7405946 A FR 7405946A FR 7405946 A FR7405946 A FR 7405946A FR 2218702 A1 FR2218702 A1 FR 2218702A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7405946A
Other languages
French (fr)
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.)
Quadracast Systems Inc
Original Assignee
Quadracast Systems 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 Quadracast Systems Inc filed Critical Quadracast Systems Inc
Publication of FR2218702A1 publication Critical patent/FR2218702A1/fr
Withdrawn legal-status Critical Current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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
FR7405946A 1973-02-21 1974-02-21 Withdrawn FR2218702A1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33437073A 1973-02-21 1973-02-21

Publications (1)

Publication Number Publication Date
FR2218702A1 true FR2218702A1 (enrdf_load_stackoverflow) 1974-09-13

Family

ID=23306904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7405946A Withdrawn FR2218702A1 (enrdf_load_stackoverflow) 1973-02-21 1974-02-21

Country Status (7)

Country Link
JP (1) JPS49115601A (enrdf_load_stackoverflow)
BE (1) BE811207A (enrdf_load_stackoverflow)
DE (1) DE2408630A1 (enrdf_load_stackoverflow)
FR (1) FR2218702A1 (enrdf_load_stackoverflow)
GB (1) GB1405870A (enrdf_load_stackoverflow)
IT (1) IT1007426B (enrdf_load_stackoverflow)
NL (1) NL7402371A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798377A (en) * 1972-04-07 1974-03-19 Matsushita Electric Corp Four channel fm decoder utilizing a one-of-four decoder

Also Published As

Publication number Publication date
GB1405870A (en) 1975-09-10
IT1007426B (it) 1976-10-30
NL7402371A (enrdf_load_stackoverflow) 1974-08-23
JPS49115601A (enrdf_load_stackoverflow) 1974-11-05
BE811207A (fr) 1974-06-17
DE2408630A1 (de) 1974-08-22

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Legal Events

Date Code Title Description
ST Notification of lapse