NL7207869A - - Google Patents

Info

Publication number
NL7207869A
NL7207869A NL7207869A NL7207869A NL7207869A NL 7207869 A NL7207869 A NL 7207869A NL 7207869 A NL7207869 A NL 7207869A NL 7207869 A NL7207869 A NL 7207869A NL 7207869 A NL7207869 A NL 7207869A
Authority
NL
Netherlands
Application number
NL7207869A
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 filed Critical
Publication of NL7207869A publication Critical patent/NL7207869A/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)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Automatic Disk Changers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
NL7207869A 1971-06-12 1972-06-09 NL7207869A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46041864A JPS4939007B1 (xx) 1971-06-12 1971-06-12

Publications (1)

Publication Number Publication Date
NL7207869A true NL7207869A (xx) 1972-12-14

Family

ID=12620106

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7207869A NL7207869A (xx) 1971-06-12 1972-06-09

Country Status (5)

Country Link
US (1) US3803367A (xx)
JP (1) JPS4939007B1 (xx)
DE (1) DE2228337C3 (xx)
GB (1) GB1391003A (xx)
NL (1) NL7207869A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045621A (en) * 1972-12-07 1977-08-30 Victor Company Of Japan, Ltd. Recording system for a multichannel record disc
JPS49134302A (xx) * 1973-04-25 1974-12-24
US4002840A (en) * 1974-06-25 1977-01-11 Matsushita Electric Industrial Co., Ltd. Angle-modulated signal transmission system

Also Published As

Publication number Publication date
DE2228337A1 (de) 1973-03-15
DE2228337B2 (de) 1978-01-12
JPS4939007B1 (xx) 1974-10-22
US3803367A (en) 1974-04-09
DE2228337C3 (de) 1978-08-24
GB1391003A (en) 1975-04-16

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Legal Events

Date Code Title Description
BC A request for examination has been filed
BV The patent application has lapsed