BE795901Q - Systeme a modulation de frequence compatible a quatre canaux - Google Patents

Systeme a modulation de frequence compatible a quatre canaux

Info

Publication number
BE795901Q
BE795901Q BE795901DA BE795901Q BE 795901 Q BE795901 Q BE 795901Q BE 795901D A BE795901D A BE 795901DA BE 795901 Q BE795901 Q BE 795901Q
Authority
BE
Belgium
Prior art keywords
frequency modulation
modulation system
compatible frequency
channel compatible
channel
Prior art date
Application number
Other languages
English (en)
Original Assignee
Quadracast Systems
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.)
Publication date
Application granted granted Critical
Publication of BE795901Q publication Critical patent/BE795901Q/fr

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)
BE795901D 1971-11-08 Systeme a modulation de frequence compatible a quatre canaux BE795901Q (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7139957A FR2159664A5 (fr) 1971-11-08 1971-11-08

Publications (1)

Publication Number Publication Date
BE795901Q true BE795901Q (fr) 1973-06-18

Family

ID=9085470

Family Applications (1)

Application Number Title Priority Date Filing Date
BE795901D BE795901Q (fr) 1971-11-08 Systeme a modulation de frequence compatible a quatre canaux

Country Status (2)

Country Link
BE (1) BE795901Q (fr)
FR (1) FR2159664A5 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2310672A1 (fr) * 1975-05-07 1976-12-03 Emv Elektromechanikai Vallalat Dispositif pour la realisation d'une transmission tetraphonique compatible au moyen de sources sonores virtuelles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1021852A (fr) * 1970-02-25 1977-11-29 Louis Dorren Systeme fm gradriphonique compatible

Also Published As

Publication number Publication date
FR2159664A5 (fr) 1973-06-22

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: MATSUSHITA ELECTRIC CORP.OF AMERICA

Effective date: 19880228