NL7406743A - - Google Patents

Info

Publication number
NL7406743A
NL7406743A NL7406743A NL7406743A NL7406743A NL 7406743 A NL7406743 A NL 7406743A NL 7406743 A NL7406743 A NL 7406743A NL 7406743 A NL7406743 A NL 7406743A NL 7406743 A NL7406743 A NL 7406743A
Authority
NL
Netherlands
Application number
NL7406743A
Other versions
NL165027B (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 JP6193773U external-priority patent/JPS5123285Y2/ja
Priority claimed from JP6193673U external-priority patent/JPS5136481Y2/ja
Application filed filed Critical
Publication of NL7406743A publication Critical patent/NL7406743A/xx
Publication of NL165027B publication Critical patent/NL165027B/xx

Links

Classifications

    • 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)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Stereophonic System (AREA)
NL7406743.A 1973-05-25 1974-05-20 Vierkanalig stereofonisch weergeefstelsel. NL165027B (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6193773U JPS5123285Y2 (enrdf_load_stackoverflow) 1973-05-25 1973-05-25
JP6193673U JPS5136481Y2 (enrdf_load_stackoverflow) 1973-05-25 1973-05-25

Publications (2)

Publication Number Publication Date
NL7406743A true NL7406743A (enrdf_load_stackoverflow) 1974-11-27
NL165027B NL165027B (nl) 1980-09-15

Family

ID=26403026

Family Applications (2)

Application Number Title Priority Date Filing Date
NL7406743.A NL165027C (nl) 1973-05-25 Vierkanalig stereofonisch weergeefstelsel.
NL7406743.A NL165027B (nl) 1973-05-25 1974-05-20 Vierkanalig stereofonisch weergeefstelsel.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL7406743.A NL165027C (nl) 1973-05-25 Vierkanalig stereofonisch weergeefstelsel.

Country Status (6)

Country Link
US (1) US3911231A (enrdf_load_stackoverflow)
AU (1) AU481062B2 (enrdf_load_stackoverflow)
CA (1) CA1005350A (enrdf_load_stackoverflow)
DE (1) DE2425191A1 (enrdf_load_stackoverflow)
FR (1) FR2231065B1 (enrdf_load_stackoverflow)
NL (2) NL165027B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL162812C (nl) * 1974-03-12 1980-06-16 Matsushita Electric Industrial Co Ltd Vierkanalige weergeefinrichting voor het weergeven van grammofoonplaten.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843850A (en) * 1970-06-26 1974-10-22 Victor Co Ltd Four channel record reproducing apparatus with muting of speakers not used for stereo or monaural records
US3711652A (en) * 1971-03-10 1973-01-16 Gen Electric Monolithic stereo decoder with balanced decoder operation
JPS5524320B2 (enrdf_load_stackoverflow) * 1972-05-24 1980-06-27
US3825697A (en) * 1973-07-27 1974-07-23 Gen Motors Corp Phase-lock-loop fm-stereo decoder including stereophonic/monophonic blend system for reducing audio distortion

Also Published As

Publication number Publication date
AU481062B2 (en) 1977-02-17
DE2425191A1 (de) 1974-12-19
FR2231065B1 (enrdf_load_stackoverflow) 1978-06-16
AU6923474A (en) 1975-11-27
US3911231A (en) 1975-10-07
NL165027B (nl) 1980-09-15
NL165027C (nl)
FR2231065A1 (enrdf_load_stackoverflow) 1974-12-20
CA1005350A (en) 1977-02-15

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee