JPS51113703A - Noise reduction system - Google Patents

Noise reduction system

Info

Publication number
JPS51113703A
JPS51113703A JP50037794A JP3779475A JPS51113703A JP S51113703 A JPS51113703 A JP S51113703A JP 50037794 A JP50037794 A JP 50037794A JP 3779475 A JP3779475 A JP 3779475A JP S51113703 A JPS51113703 A JP S51113703A
Authority
JP
Japan
Prior art keywords
noise reduction
reduction system
noise
sound wave
opposite phase
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP50037794A
Other languages
Japanese (ja)
Inventor
Yoshiaki Niwa
Fumio Harashima
Hiroshi Inaba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to JP50037794A priority Critical patent/JPS51113703A/en
Publication of JPS51113703A publication Critical patent/JPS51113703A/en
Pending legal-status Critical Current

Links

Landscapes

  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

PURPOSE: To positively eliminate noise by applying opposite phase sound wave to that of the noise source.
COPYRIGHT: (C)1976,JPO&Japio
JP50037794A 1975-03-31 1975-03-31 Noise reduction system Pending JPS51113703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50037794A JPS51113703A (en) 1975-03-31 1975-03-31 Noise reduction system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50037794A JPS51113703A (en) 1975-03-31 1975-03-31 Noise reduction system

Publications (1)

Publication Number Publication Date
JPS51113703A true JPS51113703A (en) 1976-10-07

Family

ID=12507389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50037794A Pending JPS51113703A (en) 1975-03-31 1975-03-31 Noise reduction system

Country Status (1)

Country Link
JP (1) JPS51113703A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827922A (en) * 1971-08-17 1973-04-13
JPS4888901A (en) * 1972-02-22 1973-11-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827922A (en) * 1971-08-17 1973-04-13
JPS4888901A (en) * 1972-02-22 1973-11-21

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