JPS51111301A - Noise direction control apparatus - Google Patents

Noise direction control apparatus

Info

Publication number
JPS51111301A
JPS51111301A JP50036304A JP3630475A JPS51111301A JP S51111301 A JPS51111301 A JP S51111301A JP 50036304 A JP50036304 A JP 50036304A JP 3630475 A JP3630475 A JP 3630475A JP S51111301 A JPS51111301 A JP S51111301A
Authority
JP
Japan
Prior art keywords
control apparatus
noise
direction control
noise direction
concentrating
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.)
Granted
Application number
JP50036304A
Other languages
English (en)
Other versions
JPS5323681B2 (ja
Inventor
Keiichiro Mizuno
Kazuyoshi Iida
Kiichi Kondo
Masayasu Matsumoto
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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP50036304A priority Critical patent/JPS51111301A/ja
Publication of JPS51111301A publication Critical patent/JPS51111301A/ja
Publication of JPS5323681B2 publication Critical patent/JPS5323681B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
JP50036304A 1975-03-26 1975-03-26 Noise direction control apparatus Granted JPS51111301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50036304A JPS51111301A (en) 1975-03-26 1975-03-26 Noise direction control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50036304A JPS51111301A (en) 1975-03-26 1975-03-26 Noise direction control apparatus

Publications (2)

Publication Number Publication Date
JPS51111301A true JPS51111301A (en) 1976-10-01
JPS5323681B2 JPS5323681B2 (ja) 1978-07-17

Family

ID=12466075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50036304A Granted JPS51111301A (en) 1975-03-26 1975-03-26 Noise direction control apparatus

Country Status (1)

Country Link
JP (1) JPS51111301A (ja)

Also Published As

Publication number Publication date
JPS5323681B2 (ja) 1978-07-17

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