To make it easy for multiple users to listen to audio with a simple configuration.SOLUTION: A speaker device according to an embodiment includes a vibration element, a drive unit, and a panel. The drive unit applies a drive signal obtained by modulating a carrier wave in an ultrasonic band with an audio signal in an audible wave band to the vibration element. The panel is provided with a vibration element, is formed with a vibration region by applying a drive signal to the vibration element by the drive unit, and is disposed such that first and second ultrasonic waves generated from the vibration region and traveling in different directions travel toward different users.SELECTED DRAWING: Figure 1C
【課題】複数のユーザそれぞれに対し、シンプルな構成で音声を聴取しやすくさせること。【解決手段】実施形態に係るスピーカ装置は、振動素子と、駆動部と、パネルとを備える。駆動部は、超音波帯域の搬送波を可聴波帯域の音声信号で変調した駆動信号を振動素子へ印加する。パネルは、振動素子が設けられ、かかる振動素子へ駆動部により駆動信号が印加されることによって振動領域が形成されるとともに、かかる振動領域から発生する互いに異なる方向へ進行する第1および第2の超音波がそれぞれ異なるユーザへ向けて進行するように配置される。【選択図】図1C
SPEAKER DEVICE AND AUDIO OUTPUT METHOD
スピーカ装置および音声出力方法
2019-08-29
Patent
Electronic Resource
Japanese
IPC: | H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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