JPH0562518B2 - - Google Patents

Info

Publication number
JPH0562518B2
JPH0562518B2 JP58240417A JP24041783A JPH0562518B2 JP H0562518 B2 JPH0562518 B2 JP H0562518B2 JP 58240417 A JP58240417 A JP 58240417A JP 24041783 A JP24041783 A JP 24041783A JP H0562518 B2 JPH0562518 B2 JP H0562518B2
Authority
JP
Japan
Prior art keywords
loudspeaker
sound
loudspeakers
attenuation
base
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.)
Expired - Lifetime
Application number
JP58240417A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60130999A (ja
Inventor
Akihisa Kawamura
Kazuhide Sato
Yoko Enokida
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP58240417A priority Critical patent/JPS60130999A/ja
Publication of JPS60130999A publication Critical patent/JPS60130999A/ja
Publication of JPH0562518B2 publication Critical patent/JPH0562518B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
JP58240417A 1983-12-19 1983-12-19 拡声装置 Granted JPS60130999A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58240417A JPS60130999A (ja) 1983-12-19 1983-12-19 拡声装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58240417A JPS60130999A (ja) 1983-12-19 1983-12-19 拡声装置

Publications (2)

Publication Number Publication Date
JPS60130999A JPS60130999A (ja) 1985-07-12
JPH0562518B2 true JPH0562518B2 (enrdf_load_html_response) 1993-09-08

Family

ID=17059161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58240417A Granted JPS60130999A (ja) 1983-12-19 1983-12-19 拡声装置

Country Status (1)

Country Link
JP (1) JPS60130999A (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406634A (en) * 1993-03-16 1995-04-11 Peak Audio, Inc. Intelligent speaker unit for speaker system network
JP2003204596A (ja) 2002-01-04 2003-07-18 Matsushita Electric Ind Co Ltd 拡声放送システムおよび拡声放送装置
KR101697453B1 (ko) * 2016-01-14 2017-01-17 주식회사 제이디솔루션 전달력이 향상된 터널용 스피커를 이용한 터널 정보 방송 시스템

Also Published As

Publication number Publication date
JPS60130999A (ja) 1985-07-12

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