# US 11,310,589 B2 · Audiovisual device and control method of audiovisual device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,589 B2 - Document ID: US11310589B2 - Status: Granted - Kind: B2 - Application number: 16/314,999 - Filed: 2018-02-28 - Published: 2021-10-21 - Granted: 2022-04-19 - Earliest claimed: 2017-07-21 - Assignees: Boe Technology Group Co., Ltd. - Applicants: Boe Technology Group Co., Ltd. - Inventors: Wenbo Li; Zhihong Du; Junwei Liu - Web page: https://patentgrep.com/patent/US11310589B2 ## CPC - H04R 1/323: {for loudspeakers (H04R1/34 and H04R1/40 take precedence)} - H04R 1/403: {loud-speakers} - H04R 3/00: Circuits for transducers (arrangements for producing a reverberation or echo sound G10K15/08; amplifiers H03F) - H04R 5/02: Spatial or constructional arrangements of loudspeakers - H04R 27/00: Public address systems (circuits for preventing acoustic reaction H04R3/02; circuits for distributing signals to loudspeakers H04R3/12; {monitoring or testing arrangements for public address systems H04R29/007}; amplifiers H03F) - H04R 2201/025: Transducer mountings or cabinet supports enabling variable orientation of transducer of cabinet - H04R 2499/15: Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops - H04S 7/302: {Electronic adaptation of stereophonic sound system to listener position or orientation (H04S7/301 takes precedence)} - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) - H04S: STEREOPHONIC SYSTEMS ## Abstract An audiovisual device and a control method of the audiovisual device are provided, the audiovisual device includes a backboard, the backboard is provided with a directional speaker, a regulator component and a display component that is configured for providing visual content, the directional speaker is configured for emitting a directional sound to a display side of the display component, and the regulator component is configured for regulating an orientation of the directional speaker on the display side of the display component. ## Claims ### Claim 1 An audiovisual device comprising: a backboard; a directional speaker, a regulator component, and a display component for providing visual content, wherein the directional speaker, the regulator component, and the display component are on the backboard; the directional speaker is configured for emitting a directional sound to a display side of the display component, and the regulator component is configured for regulating an orientation of the directional speaker on the display side of the display component; the regulator component comprises a regulation knob and a rotation rod; the directional speaker is rotatably connected with the backboard through the rotation rod, and the regulation knob is connected with an end of the rotation rod; and the regulator component further comprises a dial that is connected with the backboard and is configured for indicating a rotation angle of the regulation knob. ### Claim 2 (depends on 1) The audiovisual device according to claim 1, wherein the directional speaker is configured for emitting the directional sound to a preset service area, the preset service area is on the display side of the display component; the audiovisual device further comprises a processor component and a sensor component; the sensor component is configured for determining whether a human body exists in the preset service area; the processor component is configured for activating the directional speaker in a situation where the human body exists in the preset service area. ### Claim 3 (depends on 2) The audiovisual device according to claim 2, wherein the sensor component is further configured for obtaining a direction in which the human body is located in the situation where the human body exists in the preset service area; the regulator component is configured for directing the directional speaker toward the direction in which the human body is located. ### Claim 4 (depends on 3) The audiovisual device according to claim 3, wherein the regulator component is configured for directing the directional speaker toward a head of the human body. ### Claim 5 (depends on 1) The audiovisual device according to claim 1, wherein the regulator component comprises a motor, a rotation rod, a first gear and a second gear; the directional speaker is rotatably connected with the backboard through the rotation rod, and the rotation rod is provided with the first gear; a rotation shaft of the motor is provided with the second gear, and the second gear engages with the first gear. ### Claim 6 (depends on 1) The audiovisual device according to claim 1, wherein the display component comprises a rectangular display screen; the directional speaker comprises at least one strip sub-speaker, and a side of the sub-speaker and a side of the display screen are parallel to each other. ### Claim 7 (depends on 1) The audiovisual device according to claim 1, wherein the directional speaker comprises an amplifier and a metal polymer film, and the amplifier is configured for amplifying an audio signal input by the processor component and then transmitting the audio signal to the metal polymer film, so that the metal polymer film vibrates to generate an ultrasonic wave. ### Claim 8 A control method of an audiovisual device, wherein the audiovisual device comprises a backboard which is provided with a directional speaker, a regulator component and a display component that is configured for providing visual content, the directional speaker is configured for emitting a directional sound to a display side of the display component, and the regulator component is configured for regulating an orientation of the directional speaker on the display side of the display component; the method comprises: activating the display component, directing the directional speaker toward a target direction through the regulator component, and activating the directional speaker; the directional speaker is configured for emitting the directional sound to a preset service area, the preset service area is on the display side of the display component; the audiovisual device further comprises a processor component and a sensor component; before the directing the directional speaker toward the target direction through the regulator component, the method further comprises: determining whether a human body exists in the preset service area through the sensor component; and after the activating the directional speaker, the method further comprises: determining, through the sensor component, whether the human body exists in the preset service area after a first preset time period that is after the activating the directional speaker; turning off the directional speaker in a situation where no human body exists in the preset service area. ### Claim 9 (depends on 8) The method according to claim 8, wherein before the directing the directional speaker toward the target direction through the regulator component, the method further comprises: in a situation where the human body exists in the preset service area, obtaining a direction in which the human body is located through the sensor component, and determining the direction in which the human body is located as the target direction. ### Claim 10 (depends on 9) The method according to claim 9, wherein the directing the directional speaker toward the target direction through the regulator component, comprises: directing the directional speaker toward a head of the human body through the regulator component. ### Claim 11 (depends on 8) The method according to claim 8, wherein after turning off the directional speaker, the method further comprises: after a second preset time period that is after the turning off of the directional speaker, determining whether the human body exists in the preset service area through the sensor component. ### Claim 12 (depends on 8) The method according to claim 8, wherein the activating the directional speaker comprises: activating the directional speaker so that the directional speaker emits the directional sound that is associated with the visual content.