NL7406289A - - Google Patents

Info

Publication number
NL7406289A
NL7406289A NL7406289A NL7406289A NL7406289A NL 7406289 A NL7406289 A NL 7406289A NL 7406289 A NL7406289 A NL 7406289A NL 7406289 A NL7406289 A NL 7406289A NL 7406289 A NL7406289 A NL 7406289A
Authority
NL
Netherlands
Application number
NL7406289A
Other versions
NL185876C (nl
NL185876B (nl
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
Priority claimed from JP48052076A external-priority patent/JPS5247884B2/ja
Priority claimed from JP5207573A external-priority patent/JPS5521519B2/ja
Priority claimed from JP5207773A external-priority patent/JPS5527760B2/ja
Application filed filed Critical
Publication of NL7406289A publication Critical patent/NL7406289A/xx
Publication of NL185876B publication Critical patent/NL185876B/xx
Application granted granted Critical
Publication of NL185876C publication Critical patent/NL185876C/xx

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00992—Circuits for stereophonic or quadraphonic recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/006—Systems employing more than two channels, e.g. quadraphonic in which a plurality of audio signals are transformed in a combination of audio signals and modulated signals, e.g. CD-4 systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Stereophonic System (AREA)
NL7406289A 1973-05-10 1974-05-09 Stelsel voor registratie vanuit een aantal richtingen afkomstige geluidssignalen op een registratiemedium en stelsel voor weergave van dergelijke signalen. NL185876C (nl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP48052076A JPS5247884B2 (enrdf_load_stackoverflow) 1973-05-10 1973-05-10
JP5207573A JPS5521519B2 (enrdf_load_stackoverflow) 1973-05-10 1973-05-10
JP5207773A JPS5527760B2 (enrdf_load_stackoverflow) 1973-05-10 1973-05-10

Publications (3)

Publication Number Publication Date
NL7406289A true NL7406289A (enrdf_load_stackoverflow) 1974-11-12
NL185876B NL185876B (nl) 1990-03-01
NL185876C NL185876C (nl) 1990-08-01

Family

ID=27294535

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7406289A NL185876C (nl) 1973-05-10 1974-05-09 Stelsel voor registratie vanuit een aantal richtingen afkomstige geluidssignalen op een registratiemedium en stelsel voor weergave van dergelijke signalen.

Country Status (3)

Country Link
DE (1) DE2422471C2 (enrdf_load_stackoverflow)
FR (1) FR2229183B1 (enrdf_load_stackoverflow)
NL (1) NL185876C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2528072C3 (de) * 1974-06-25 1982-03-18 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Schaltungsanordnung zur Aufzeichnung von Vierkanalsignalen auf einer Vierkanalschallplatte

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906156A (en) * 1971-10-06 1975-09-16 Duane H Cooper Signal matrixing for directional reproduction of sound

Also Published As

Publication number Publication date
NL185876C (nl) 1990-08-01
FR2229183B1 (enrdf_load_stackoverflow) 1983-08-12
NL185876B (nl) 1990-03-01
DE2422471A1 (de) 1974-11-28
FR2229183A1 (enrdf_load_stackoverflow) 1974-12-06
DE2422471C2 (de) 1982-11-25

Similar Documents

Publication Publication Date Title
AU476761B2 (enrdf_load_stackoverflow)
AU465372B2 (enrdf_load_stackoverflow)
AU474593B2 (enrdf_load_stackoverflow)
AU474511B2 (enrdf_load_stackoverflow)
AU474838B2 (enrdf_load_stackoverflow)
AU471343B2 (enrdf_load_stackoverflow)
AU465453B2 (enrdf_load_stackoverflow)
AU465434B2 (enrdf_load_stackoverflow)
AU476714B2 (enrdf_load_stackoverflow)
AU466283B2 (enrdf_load_stackoverflow)
AR199451A1 (enrdf_load_stackoverflow)
AU472848B2 (enrdf_load_stackoverflow)
AU476696B2 (enrdf_load_stackoverflow)
FR2229183B1 (enrdf_load_stackoverflow)
AU477823B2 (enrdf_load_stackoverflow)
AU476873B1 (enrdf_load_stackoverflow)
AR197627A1 (enrdf_load_stackoverflow)
AU461342B2 (enrdf_load_stackoverflow)
AU477824B2 (enrdf_load_stackoverflow)
AR200256A1 (enrdf_load_stackoverflow)
CH559424A5 (enrdf_load_stackoverflow)
BG18791A1 (enrdf_load_stackoverflow)
AU479521A (enrdf_load_stackoverflow)
AU479504A (enrdf_load_stackoverflow)
AU479496A (enrdf_load_stackoverflow)

Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Lapsed because of reaching the maxim lifetime of a patent