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1. (WO2003007651) MOBILE COMMUNICATION TERMINAL AND ELECTRO-ACOUSTIC TRANSDUCER USED FOR THE SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2003/007651    International Application No.:    PCT/JP2002/006988
Publication Date: 23.01.2003 International Filing Date: 10.07.2002
IPC:
H04M 1/02 (2006.01), H04M 1/03 (2006.01)
Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. [JP/JP]; 1006, Oaza Kadoma Kadoma-shi, Osaka 571-8501 (JP) (For All Designated States Except US).
SHIMOKAWATOKO, Takeshi [JP/JP]; (JP) (For US Only).
TOMOEDA, Shigeru [JP/JP]; (JP) (For US Only).
SANO, Koji [JP/JP]; (JP) (For US Only).
MORI, Tetsuya [JP/JP]; (JP) (For US Only).
KUBO, Kazutaka [JP/JP]; (JP) (For US Only)
Inventors: SHIMOKAWATOKO, Takeshi; (JP).
TOMOEDA, Shigeru; (JP).
SANO, Koji; (JP).
MORI, Tetsuya; (JP).
KUBO, Kazutaka; (JP)
Agent: IWAHASHI, Fumio; c/o Matsushita Electric Industrial Co., Ltd. 1006, Oaza Kadoma Kadoma-shi, Osaka 571-8501 (JP)
Priority Data:
2001-210438 11.07.2001 JP
2002-85260 26.03.2002 JP
Title (EN) MOBILE COMMUNICATION TERMINAL AND ELECTRO-ACOUSTIC TRANSDUCER USED FOR THE SAME
(FR) TERMINAL DE COMMUNICATIONS MOBILE ET SON TRANSDUCTEUR ELECTROACOUSTIQUE
Abstract: front page image
(EN)A mobile communication terminal has an electro-acoustic transducer (hereinafter referred to as transducer) having an opening in its casing. The opening of the transducer is coupled to a sound tube integrally provided to the casing of the mobile communication terminal or the casing of the transducer. The opening of the sound tube faces to the opening made in the casing of the mobile communication terminal. A mobile communication terminal of another mode has a transducer having a cover and a frame secured to the periphery of a sound vibrator at the front and back faces of the sound vibrator and further having at least two openings. Such a mobile communication terminal and such an electro-acoustic transducer can radiate a high-sound pressure output even though they consume small power and are small in size. When the terminal is used, natural sound is radiated such that the display part agrees with the direction.
(FR)La présente invention concerne un terminal de communications mobile comportant un transducteur électroacoustique au carter est pourvu d'un orifice. L'orifice du transducteur est couplé à un conduit acoustique tenant entièrement dans le carter du terminal ou le carter du transducteur. Le conduit acoustique débouche dans l'orifice du carter du terminal. Selon un autre mode de réalisation, le terminal de comporte, d'une part un transducteur dont le couvercle et le châssis sont solidaires du tour du vibreur par ses façades antérieures et postérieures, et d'autre part au moins deux orifices. Un tel terminal de communications et un tel transducteur peuvent produire une pression acoustique élevée malgré une faible consommation électrique et de petites dimensions. Lorsqu'on utilise le terminal, on obtient un son naturel respectant l'orientation de l'écran.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)