To notify multiple pedestrians in different positions of a sound.SOLUTION: The speaker device includes: a panel; a vibration element; and a control unit. The panel is provided on a surface of a mobile body. The vibration element vibrates the panel. The control unit vibrates the vibration element with a signal obtained by modulating an audible sound with a carrier wave in an ultrasonic band to generate a standing wave on the panel and output an audible sound in at least two directions from a surface of the panel.SELECTED DRAWING: Figure 2

    【課題】異なる位置に存在する複数の歩行者へ音声を通知すること。【解決手段】実施形態に係るスピーカ装置は、パネルと、振動素子と、制御部とを備える。パネルは、移動体の表面に設けられる。振動素子は、パネルを振動させる。制御部は、振動素子を超音波帯域の搬送波で可聴音を変調した信号で振動させてパネルに定在波を発生させることで、パネルの表面から少なくとも2方向へ可聴音を出力させる。【選択図】図2


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    Title :

    SPEAKER DEVICE


    Additional title:

    スピーカ装置


    Contributors:

    Publication date :

    2020-06-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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