[특허]Speaker system with image projection screen

[미국특허] Speaker system with image projection screen 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04R-001/02
출원번호	US-0249954 (1988-09-27)
우선권정보	JP-0245101 (1987-09-29); JP-0294418 (1987-11-20); JP-0305016 (1987-12-01)
발명자 / 주소	Tanaka Tsuneo (Nishinomiya JPX) Sato Kazue (Neyagawa JPX) Takewa Hiroyuki (Kaizuka JPX) Kurozuka Akira (Neyagawa JPX) Tamura Tadashi (Kadoma JPX) Hattori Katsuji (Takarazuka JPX) Takayama Satoshi (Hi
출원인 / 주소	Matsushita Electric Industrial Co., Ltd. (Osaka JPX 03)
인용정보	피인용 횟수 : 39 인용 특허 : 5

초록 ▼

A speaker system has an acoustic diaphragm and an image projection screen provided on a surface of the diaphragm integrally therewith so as to enable the user to enjoy both realistic image on the screen and powerful sound reproduced through the diaphragm. The rear surface of the diaphragm is closed at a peripheral portion thereof while the central portion of the rear surface of the diaphragm is opened to the exterior, so that the speaker system can provide a high level of reproduced sound pressure in low-pitched region, while the thickness of the speaker is reduced remarkably. The diaphgram can be driven by a plurality of driving units so that the speaker system can operate only with an ordinary stereophonic amplifier. The diaphragm can be composed of a pair of diaphragm elements capable of vibrating independently of each other and the screen may be integrally and commonly attached to the surfaces of these diaphragm elements in such a manner as to allow the diaphragm elements to vibrate independently of each other, whereby the speaker system can operate in stereophonic mode. Any variation in the acoustic characteristic attributable to variation in the condition of installation is compensated for by a change in the ratio of the opened area of the rear surface of the diaphragm to the whole effective vibration area or by a selective provision of a sound absorbing member on the rear side of the cabinet.

대표청구항 ▼

A speaker system comprising: an acoustic diaphragm having a front surface and a rear surface, said front surface carrying an image projection screen thereon; a driving unit provided on said rear surface of said diaphragm, for driving said diaphragm; and a cabinet provided on said rear surface of said diaphragm and defining an open space and a closed space therein so as to expose a part of said rear surface of said diaphragm to said open space and to enclose the other part of said rear surface of said diaphragm within said closed space.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Watkins William H. (1244 Caribbean Dr. Kingsport TN 37660) Watkins William D. (1244 Caribbean Dr. Kingsport TN 37660), Acoustic rear radiation absorption for loudspeaker systems.
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Marquiss, Stanley L., Electro-acoustic planar transducer.
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Matsuda Atsushi (Tokyo JPX) Kishigami Jun (Urawa JPX), Loudspeaker.
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Meyerle George M. (Lakeview Dr. Candlewood Orchards Brookfield CT 06804), Method and apparatus for reducing undesired transmission of acoustic energy from a loudspeaker cabinet and for acoustica.
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Takewa Hiroyuki (Kaizuka JPX) Serikawa Mitsuhiko (Hirakata JPX) Ishikawa Seiichi (Hirakata JPX) Usuki Sawako (Kobe JPX) Kimura Yoichi (Ashiya JPX) Obata Shuichi (Kyoto JPX), Thin speaker having an enclosure within an open portion and a closed portion.
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이 특허를 인용한 특허 (39) 인용/피인용 타임라인 분석

Azima Henry Firouz,GBX ; Colloms Martin,GBX ; Harris Neil John,GBX, Acoustic device.
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Azima, Henry Firouz; Colloms, Martin; Harris, Neil, Acoustic device.
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Azima,Henry; Colloms,Martin; Harris,Neil, Acoustic device.
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Azima,Henry; Colloms,Martin; Harris,Neil, Acoustic device.
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Henry Azima GB; Martin Colloms GB; Neil Harris GB, Acoustic display screen.
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Thomas R. Howarth, Acoustic transducer panel.
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Azima,Henry; Colloms,Martin; Bank,Graham; Bream,Charles; Fordham,Julian, Bending wave acoustic radiator.
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Azima Henry,GBX ; Colloms Martin,GBX ; Harris Neil John,GBX, Ceiling tile loudspeaker.
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Choi, YeongRak; Lee, Sungtae, Display device for generating sound by vibrating panel.
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Roy, Kenneth P.; Oleske, Peter, Facing system for a flat panel radiator.
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Lee,Noel, Flat panel monitor frame with integral speakers.
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Faerstain, Norbert; Kern, Michael; Hurrell, James, Integrated audio-visual systems.
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Schlenker, Berthold; Sporer, Thomas; Brandenburg, Karlheinz, Integrated loudspeaker system.
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Azima Henry,GBX ; Colloms Martin,GBX ; Harris Neil,GBX, Laptop computer with loudspeaker(s).
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Christopher Colin Lock NZ; John Frederick Corey NZ; Graeme Oliver Jones NZ; Kelly Charles Waterman NZ, Loudspeakers.
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Whitwell, Timothy Christopher; Hill, Nicholas Patrick Roland; Boyd, Geoffrey Arthur Coleridge, Loudspeakers.
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Azima Henry,GBX ; Colloms Martin,GBX ; Harris Neil,GBX, Loudspeakers comprising panel-form acoustic radiating elements.
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Azima Henry,GBX ; Colloms Martin,GBX ; Harris Neil,GBX, Noticeboards incorporating loudspeakers.
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Choi, YeongRak; Oh, ChangHo; Park, KwanHo; Lee, Sungtae, Organic light emitting display device including a sound generating apparatus.
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Komura, Tatsumi, Panel speaker with wide free space.
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Choi, YeongRak; Park, KwanHo; Lee, Sungtae; Kim, Kwangho, Panel vibration type display device for generating sound.
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Choi, YeongRak; Oh, ChangHo; Park, KwanHo; Lee, Sungtae, Panel vibration type sound generating display device.
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Choi, YeongRak; Park, KwanHo; Lee, Sungtae, Panel vibration type sound generating display device.
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Choi, YeongRak; Park, KwanHo; Lee, Sungtae, Panel vibration type sound generating display device.
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Lee, Sungtae; Choi, YeongRak, Panel vibration type sound generating display device.
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Choi, YeongRak; Lee, Sungtae, Panel vibration type sound-generating display device.
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Azima Henry,GBX ; Colloms Martin,GBX ; Harris Neil John,GBX, Panel-form loudspeakers.
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Azima Henry,GBX ; Colloms Martin,GBX ; Harris Neil John,GBX, Panel-form loudspeakers.
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Wolfgang Bachmann DE; Gerhard Krump DE; Hans-Jurgen Regl DE, Projection screen.
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Arai, Jun; Yamada, Haruyoshi, Rear projector and producing method thereof.
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Sugawara, Yutaka; Kikuchi, Hiroki, Screen and image projection apparatus.
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Louh, Sei-Ping, Speaker and display having same.
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Suprapmo,Susimin; Shee,Choon Yen Frankie; Chang,Thean Kule Christopher; Chong,Kin Fui, Speaker with externally mounted acoustic extension.
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McKnight, Douglas J.; Curtis, Kevin, System and method for vibrating screens to reduce speckle.
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McKnight, Douglas J.; Curtis, Kevin, System and method for vibrating screens to reduce speckle.
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Vincent, Pierre, System for the projection of cinematographic works and digital works with sound.
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Jiang, Chao; Yang, Jianbin; Li, Zhi; Jiao, Qijin, Tablet woofer and electronic device using same.
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Azima Henry,GBX ; Colloms Martin,GBX ; Harris Neil John,GBX, Visual display means incorporating loudspeakers.
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Azima Henry,GBX ; Colloms Martin,GBX ; Harris Neil,GBX, Visual display means incorporating loudspeakers.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Speaker system with image projection screen 원문보기