NL7405504A - - Google Patents

Info

Publication number
NL7405504A
NL7405504A NL7405504A NL7405504A NL7405504A NL 7405504 A NL7405504 A NL 7405504A NL 7405504 A NL7405504 A NL 7405504A NL 7405504 A NL7405504 A NL 7405504A NL 7405504 A NL7405504 A NL 7405504A
Authority
NL
Netherlands
Application number
NL7405504A
Other versions
NL167077C (nl
NL167077B (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
Application filed filed Critical
Publication of NL7405504A publication Critical patent/NL7405504A/xx
Publication of NL167077B publication Critical patent/NL167077B/xx
Application granted granted Critical
Publication of NL167077C publication Critical patent/NL167077C/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)
  • Noise Elimination (AREA)
NL7405504.A 1973-04-25 1974-04-24 Vierkanalig stereoweergeefstelsel. NL167077C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4803073A JPS537249B2 (cs) 1973-04-25 1973-04-25

Publications (3)

Publication Number Publication Date
NL7405504A true NL7405504A (cs) 1974-10-29
NL167077B NL167077B (nl) 1981-05-15
NL167077C NL167077C (nl) 1981-10-15

Family

ID=12791900

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7405504.A NL167077C (nl) 1973-04-25 1974-04-24 Vierkanalig stereoweergeefstelsel.

Country Status (7)

Country Link
US (1) US3936619A (cs)
JP (1) JPS537249B2 (cs)
AU (1) AU472338B2 (cs)
CA (1) CA1005349A (cs)
DE (1) DE2419845C2 (cs)
FR (1) FR2227704B1 (cs)
NL (1) NL167077C (cs)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184178A (en) * 1972-11-30 1980-01-15 Basf Aktiengesellschaft Drop-out compensator for sound reproducing apparatus during tape reversal
US4075425A (en) * 1974-09-24 1978-02-21 Nippon Columbia Kabushikikaisha Multi-directional sound signal reproducing system
GB1523284A (en) * 1974-11-18 1978-08-31 Rca Corp End of play circuit
US4204091A (en) * 1977-03-21 1980-05-20 Victor Company Of Japan, Limited Cancellation of interference distortions caused by intermodulation between FM signals on adjacent channels
US4119812A (en) * 1977-04-20 1978-10-10 Rca Corporation Signal defect detection and compensation with signal de-emphasis
US4692914A (en) * 1983-05-31 1987-09-08 Canon Kabushiki Kaisha Reproducing device for frequency modulated signals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA938560A (en) * 1969-11-28 1973-12-18 Victor Company Of Japan System for recording and/or reproducing four channel signals on a record disc
US3711652A (en) * 1971-03-10 1973-01-16 Gen Electric Monolithic stereo decoder with balanced decoder operation
JPS515763B1 (cs) * 1971-05-24 1976-02-23

Also Published As

Publication number Publication date
JPS49134218A (cs) 1974-12-24
AU6821074A (en) 1975-10-23
DE2419845A1 (de) 1974-11-21
AU472338B2 (en) 1976-05-20
JPS537249B2 (cs) 1978-03-16
NL167077C (nl) 1981-10-15
CA1005349A (en) 1977-02-15
NL167077B (nl) 1981-05-15
FR2227704B1 (cs) 1980-01-18
DE2419845C2 (de) 1982-11-18
FR2227704A1 (cs) 1974-11-22
US3936619A (en) 1976-02-03

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Legal Events

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