Patent ID: 11902761
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A method for driving a sound producing device, comprising:
acquiring, by a recognition element, information relating to a person in a preset range and transmitting the information relating to the person to a control element; and
acquiring, by the control element, a corresponding audio signal according to the information relating to the person and controlling a directional sound production element to send out a sound wave according to the audio signal,
wherein the information relating to the person comprises a total number of persons and positions of the persons with respect to the sound producing device,
the acquiring, by the control element, a corresponding audio signal according to the information relating to the person comprises:
calculating, by the control element, the corresponding audio signal according to the number of the persons and the positions of the persons with respect to the sound producing device, with the audio signal comprising frequencies and delays of sound waves transmitted from sound production sensors in the directional sound production element,
wherein the frequencies of the sound waves transmitted from the sound production sensors in the directional sound production element are controlled by the control element based on an acoustic parametric array method, so that the directivity of the sound wave sent out from the directional sound production element is adjusted, and the delays of the sound waves transmitted from the sound production sensors in the directional sound production element are controlled by the control element based on an acoustic phased array method, so that a propagation direction and a coverage area of the sound wave sent out from the directional sound production element are adjusted, with the sound wave sent out from the directional sound production element covering all the persons in the preset range.