JPS5564497A - Speaker unit - Google Patents

Speaker unit

Info

Publication number
JPS5564497A
JPS5564497A JP13861678A JP13861678A JPS5564497A JP S5564497 A JPS5564497 A JP S5564497A JP 13861678 A JP13861678 A JP 13861678A JP 13861678 A JP13861678 A JP 13861678A JP S5564497 A JPS5564497 A JP S5564497A
Authority
JP
Japan
Prior art keywords
diaphragm
frequency range
vibrated
diaphragms
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.)
Granted
Application number
JP13861678A
Other languages
Japanese (ja)
Other versions
JPS6050119B2 (en
Inventor
Kazuhide Sato
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 JP13861678A priority Critical patent/JPS6050119B2/en
Publication of JPS5564497A publication Critical patent/JPS5564497A/en
Publication of JPS6050119B2 publication Critical patent/JPS6050119B2/en
Expired 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges

Abstract

PURPOSE:To obtain a speaker whose directivity is controlled by decreasing a sound- pressure level in a direction, deviated from an axis perpendicular to a diaphragm by a fixed angle, to that on the axis by a fixed value over a broad frequency range. CONSTITUTION:Circular diaphragm 6 and doughnut-shaped diaphragm 7 are arranged concentrically and supported by fixed parts 11 and 12 through free edges 8, 9 and 10. Respective diaphragms are independently driven by voice coils 13 and 14. As for the driving of this unit, both diaphragms 6 and 7 are vibrated differing in phase in a low-frequency range, and only diaphragm 7 is driven in a middle frequency range; and diaphragms 6 and 7 are vibrated in phase in both middle and high-frequency ranges, and only diaphragm 6 is vibrated in a high-frequency range. In this way, a speaker unit can be obtained which fulfills the purpose.
JP13861678A 1978-11-09 1978-11-09 speaker device Expired JPS6050119B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13861678A JPS6050119B2 (en) 1978-11-09 1978-11-09 speaker device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13861678A JPS6050119B2 (en) 1978-11-09 1978-11-09 speaker device

Publications (2)

Publication Number Publication Date
JPS5564497A true JPS5564497A (en) 1980-05-15
JPS6050119B2 JPS6050119B2 (en) 1985-11-06

Family

ID=15226238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13861678A Expired JPS6050119B2 (en) 1978-11-09 1978-11-09 speaker device

Country Status (1)

Country Link
JP (1) JPS6050119B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148500A (en) * 1981-03-10 1982-09-13 Matsushita Electric Ind Co Ltd Electrostatic acoustic converter
US4492826A (en) * 1982-08-10 1985-01-08 R&C Chiu International, Inc. Loudspeaker
US8133008B2 (en) 2006-04-07 2012-03-13 Ihi Corporation Axial flow fluid apparatus and blade
JP2013115607A (en) * 2011-11-29 2013-06-10 Tokai Rubber Ind Ltd Speaker and reproduction band adjustment method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0414346Y2 (en) * 1986-11-28 1992-03-31

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148500A (en) * 1981-03-10 1982-09-13 Matsushita Electric Ind Co Ltd Electrostatic acoustic converter
US4492826A (en) * 1982-08-10 1985-01-08 R&C Chiu International, Inc. Loudspeaker
US8133008B2 (en) 2006-04-07 2012-03-13 Ihi Corporation Axial flow fluid apparatus and blade
JP2013115607A (en) * 2011-11-29 2013-06-10 Tokai Rubber Ind Ltd Speaker and reproduction band adjustment method

Also Published As

Publication number Publication date
JPS6050119B2 (en) 1985-11-06

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