JPS6468099A - Speaker system - Google Patents

Speaker system

Info

Publication number
JPS6468099A
JPS6468099A JP22431487A JP22431487A JPS6468099A JP S6468099 A JPS6468099 A JP S6468099A JP 22431487 A JP22431487 A JP 22431487A JP 22431487 A JP22431487 A JP 22431487A JP S6468099 A JPS6468099 A JP S6468099A
Authority
JP
Japan
Prior art keywords
acoustic tube
frequency range
sectional area
cross
hollow space
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
JP22431487A
Other languages
Japanese (ja)
Other versions
JP2707553B2 (en
Inventor
Kazuki Honda
Shuji Saeki
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 JP62224314A priority Critical patent/JP2707553B2/en
Publication of JPS6468099A publication Critical patent/JPS6468099A/en
Application granted granted Critical
Publication of JP2707553B2 publication Critical patent/JP2707553B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To improve radiation efficiency at low frequency range and to flatten the sound pressure characteristic of middle and high frequency range by composing an acoustic tube on the back face of a speaker unit and providing in the acoustic tube at least one hollow space having a cross-sectional area larger than the cross-sectional area of the acoustic tube. CONSTITUTION:A cabinet 5 to constitute the acoustic tube which is extended continuously from the speaker unit back surface and whose opening 8 is opened to a sound field and at least one hollow space 6 having the cross-sectional area larger than the cross-sectional area of the acoustic tube 5 are provided in the acoustic tube 5. That is to say, the sounds of the middle and high frequency range from the speaker unit back face to pass through the acoustic tube and to be radiated to the sound field is acoustically interrupted by a reactance component presented by acoustic compliance in the hollow space 6 and the hollow space 6 operates as an acoustic filter to interrupt the high frequency range. Thus, the sound pressure level of only the middle and high frequency range is widely decreased, interference between them and middle and high tones to be radiated from a speaker unit front face is eliminated and a speaker system without the nonuniformity of the sound pressure characteristic of the middle and high tones and without sound degradation can be obtained.
JP62224314A 1987-09-08 1987-09-08 Speaker system Expired - Lifetime JP2707553B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224314A JP2707553B2 (en) 1987-09-08 1987-09-08 Speaker system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224314A JP2707553B2 (en) 1987-09-08 1987-09-08 Speaker system

Publications (2)

Publication Number Publication Date
JPS6468099A true JPS6468099A (en) 1989-03-14
JP2707553B2 JP2707553B2 (en) 1998-01-28

Family

ID=16811811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224314A Expired - Lifetime JP2707553B2 (en) 1987-09-08 1987-09-08 Speaker system

Country Status (1)

Country Link
JP (1) JP2707553B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02246699A (en) * 1989-03-20 1990-10-02 Matsushita Electric Ind Co Ltd Speaker system
US5535284A (en) * 1994-08-03 1996-07-09 Thornhill; James A. Woofer speaker and acoustically coupled sub-woofer speaker system
US6002781A (en) * 1993-02-24 1999-12-14 Matsushita Electric Industrial Co., Ltd. Speaker system
WO2010074337A1 (en) * 2008-12-24 2010-07-01 中道仁 Speaker
JP2011512108A (en) * 2008-02-21 2011-04-14 ボーズ・コーポレーション Waveguide electroacoustic conversion
WO2012090433A1 (en) * 2010-12-28 2012-07-05 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 Electroacoustic transducer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5587084U (en) * 1978-12-08 1980-06-16
JPS5587083U (en) * 1978-12-08 1980-06-16
JPS6036953U (en) * 1983-08-19 1985-03-14 株式会社　クボタ Control equipment for tent hoisting machines, etc.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5587084U (en) * 1978-12-08 1980-06-16
JPS5587083U (en) * 1978-12-08 1980-06-16
JPS6036953U (en) * 1983-08-19 1985-03-14 株式会社　クボタ Control equipment for tent hoisting machines, etc.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02246699A (en) * 1989-03-20 1990-10-02 Matsushita Electric Ind Co Ltd Speaker system
US6002781A (en) * 1993-02-24 1999-12-14 Matsushita Electric Industrial Co., Ltd. Speaker system
US5535284A (en) * 1994-08-03 1996-07-09 Thornhill; James A. Woofer speaker and acoustically coupled sub-woofer speaker system
JP2011512108A (en) * 2008-02-21 2011-04-14 ボーズ・コーポレーション Waveguide electroacoustic conversion
WO2010074337A1 (en) * 2008-12-24 2010-07-01 中道仁 Speaker
WO2012090433A1 (en) * 2010-12-28 2012-07-05 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 Electroacoustic transducer
US9247338B2 (en) 2010-12-28 2016-01-26 Nec Corporation Electroacoustic transducer
JP5910507B2 (en) * 2010-12-28 2016-04-27 日本電気株式会社 Electroacoustic transducer

Also Published As

Publication number Publication date
JP2707553B2 (en) 1998-01-28

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term