JPS5481826A - Directional sound collector - Google Patents

Directional sound collector

Info

Publication number
JPS5481826A
JPS5481826A JP14872777A JP14872777A JPS5481826A JP S5481826 A JPS5481826 A JP S5481826A JP 14872777 A JP14872777 A JP 14872777A JP 14872777 A JP14872777 A JP 14872777A JP S5481826 A JPS5481826 A JP S5481826A
Authority
JP
Japan
Prior art keywords
sound collector
directional sound
directional
collector
sound
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
JP14872777A
Other languages
Japanese (ja)
Other versions
JPS5731353B2 (en
Inventor
Masaaki Arai
Sadaya Chino
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.)
Japan National Railways
Original Assignee
Japan National Railways
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 Japan National Railways filed Critical Japan National Railways
Priority to JP14872777A priority Critical patent/JPS5481826A/en
Publication of JPS5481826A publication Critical patent/JPS5481826A/en
Publication of JPS5731353B2 publication Critical patent/JPS5731353B2/ja
Granted legal-status Critical Current

Links

JP14872777A 1977-12-13 1977-12-13 Directional sound collector Granted JPS5481826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14872777A JPS5481826A (en) 1977-12-13 1977-12-13 Directional sound collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14872777A JPS5481826A (en) 1977-12-13 1977-12-13 Directional sound collector

Publications (2)

Publication Number Publication Date
JPS5481826A true JPS5481826A (en) 1979-06-29
JPS5731353B2 JPS5731353B2 (en) 1982-07-03

Family

ID=15459252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14872777A Granted JPS5481826A (en) 1977-12-13 1977-12-13 Directional sound collector

Country Status (1)

Country Link
JP (1) JPS5481826A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8174935B2 (en) 2006-04-20 2012-05-08 Nec Corporation Adaptive array control device, method and program, and adaptive array processing device, method and program using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8174935B2 (en) 2006-04-20 2012-05-08 Nec Corporation Adaptive array control device, method and program, and adaptive array processing device, method and program using the same
JP5315991B2 (en) * 2006-04-20 2013-10-16 日本電気株式会社 Array control device, array control method and array control program, array processing device, array processing method and array processing program

Also Published As

Publication number Publication date
JPS5731353B2 (en) 1982-07-03

Similar Documents

Publication Publication Date Title
JPS543521A (en) Loudspeaker
JPS549618A (en) Speaker system
JPS53129022A (en) Headset
JPS5448228A (en) Headphone
JPS55109100A (en) Directional microphone
JPS5397402A (en) Headset
GB2010636B (en) Loudspeaker
GB2022362B (en) Speaker
GB2002991B (en) Speaker system
GB2001225B (en) Loudspeaker combination
GB2009496B (en) Thomson-csf
HK21285A (en) Pole
JPS53112724A (en) Loudspeaker
JPS53138724A (en) Loudspeaker
GB2012520B (en) Speaker
JPS5446031A (en) Speaker system
JPS5481826A (en) Directional sound collector
JPS54107726A (en) Speaker
JPS5429626A (en) Speaker
GB2008359B (en) Audio teleconferecing
JPS53113501A (en) Sound collector for ear
JPS53113524A (en) Loudspeaker
JPS5421323A (en) Speaker system
JPS5419733A (en) Speaker
JPS5414223A (en) Piezooelectric speaker