# US 2023/0054544 A1 · Chair equipped with multi-channel sound system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0054544 A1 - Document ID: US20230054544A1 - Status: Published application - Kind: A1 - Application number: 17/820,776 - Filed: 2022-08-18 - Published: 2023-02-23 - Earliest claimed: 2021-08-19 - Assignees: Tround Inc. - Applicants: Tround Inc. - Inventors: Jea Bum PARK - Web page: https://patentgrep.com/patent/US20230054544A1 ## CPC - A47C 7/727: {with speakers} - H04R 5/023: {in a chair, pillow} - A47C 7/72: Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like - B60N 2/879: with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers - H04S 3/00: Systems employing more than two channels, e.g. quadraphonic (H04S5/00, H04S7/00 take precedence) - A47C: CHAIRS; SOFAS; BEDS - 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) - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR - H04S: STEREOPHONIC SYSTEMS ## Abstract The present invention relates to a chair equipped with a multi-channel sound system, and more particularly, to a chair equipped with a multi-channel sound system, which is capable of providing a sense of space and a three-dimensional effect for a user who sits in the chair through sounds output from a plurality of channels and allows the user to adjust orientation directions and orientation angles of speakers by himself or herself and realize a sound environment optimized for the user. ## Claims ### Claim 1 A chair including at least 1) a headrest portion configured to support a head part of a user, 2) a backrest portion configured to support a back and waist part of the user, 3) a seat portion configured to support a buttocks part and parts of legs of the user, and 4) a side support configured to support a side part of the user, the chair comprising: at least one installation frame which is installed in the headrest portion or the backrest portion, and has a shape which extends from the headrest portion or the backrest portion in a direction toward the front of the user seated on the chair; and at least one first speaker frame which is installed on the installation frame and in which a first speaker installation region in which at least one speaker is installed is defined, wherein the first speaker frame has a shape extending in one direction, and the first speaker installation region is defined in a direction in which the first speaker frame extends. ### Claim 2 (depends on 1) The chair of claim 1, wherein the first speaker frame is installed on the installation frame in a region adjacent to the side of the user who sits in the chair. ### Claim 3 (depends on 1) The chair of claim 1, wherein: the installation frame has a shape which extends from the headrest portion or the backrest portion in a direction toward the front of the user past both sides of the user seated on the chair; and the first speaker frame is installed on each installation frame in a region adjacent to the left side of the user who sits in the chair and in a region adjacent to the right side of the user. ### Claim 4 (depends on 1) The chair of claim 1, wherein a second speaker installation region in which at least one speaker is installed in the direction in which the installation frame extends is defined. ### Claim 5 (depends on 1) The chair of claim 1, wherein: the first speaker frame is connected to the installation frame through a first rotation shaft; and the first speaker frame is provided to be rotatable within a predetermined angular range about an axial direction of the first rotation shaft. ### Claim 6 (depends on 5) The chair of claim 5, wherein the first speaker frame is installed to be rotatable, through the first rotation shaft, between a direction parallel to the direction in which the installation frame extends and a direction perpendicular to the direction in which the installation frame extends. ### Claim 7 (depends on 1) The chair of claim 1, wherein: at least one head frame is installed in the installation frame, the headrest portion or the backrest portion, and has a shape which extends from the installation frame, the headrest portion or the backrest portion in a direction toward the front of the user seated on the chair; and a third speaker installation region in which at least one speaker is installed in the direction in which the head frame extends is defined. ### Claim 8 (depends on 7) The chair of claim 7, wherein: at least one second speaker frame is disposed in the direction in which the head frame extends; the second speaker frame has a shape extending to a predetermined length in a direction crossing the direction in which the head frame extends; and the third speaker installation region is defined in at least one frame selected from the head frame and the second speaker frame. ### Claim 9 (depends on 8) The chair of claim 8, wherein the second speaker frame is connected to the head frame through a second rotation shaft and provided to be rotatable within a predetermined angular range about an axial direction of the second rotation shaft. ### Claim 10 (depends on 1) The chair of claim 1, wherein: a support frame having a shape which extends in a vertical direction is provided inside the backrest portion or on a rear surface of the backrest portion; and the installation frame is connected to the support frame and provided to be movable up and down in the direction in which the support frame extends. ### Claim 11 (depends on 10) The chair of claim 10, wherein: at least one head frame is installed on the support frame, and has a shape which extends from the support frame in a direction toward the front of the user seated on the chair; and a third speaker installation region in which at least one speaker is installed in the direction in which the head frame extends is defined. ### Claim 12 A chair including at least 1) a headrest portion configured to support a head part of a user, 2) a backrest portion configured to support a back and waist part of the user, 3) a seat portion configured to support a buttocks part and parts of legs of the user, and 4) a side support configured to support a side part of the user, the chair comprising: an installation frame which is installed in the seat portion or the side support and has a shape extending in a vertical direction; and a first speaker frame which is installed on the installation frame and in which a first speaker installation region in which at least one speaker is installed is defined, wherein the first speaker frame has a shape extending in one direction, and the first speaker installation region is defined in a direction in which the first speaker frame extends. ### Claim 13 (depends on 12) The chair of claim 12, wherein: the first speaker frame is connected to the installation frame through a first rotation shaft; and the first speaker frame is provided to be rotatable within a predetermined angular range about an axial direction of the first rotation shaft. ### Claim 14 (depends on 13) The chair of claim 13, wherein the first speaker frame is installed to be rotatable, through the first rotation shaft, between a direction parallel to the direction in which the installation frame extends and a direction perpendicular to the direction in which the installation frame extends. ### Claim 15 (depends on 12) The chair of claim 12, wherein a second speaker installation region in which at least one speaker is installed in the direction in which the installation frame extends is defined. ### Claim 16 (depends on 12) The chair of claim 12, wherein: at least one head frame is installed on the backrest portion or the headrest portion, and has a shape which extends from the backrest portion or the headrest portion in a direction toward the front of the user seated on the chair; and a third speaker installation region in which at least one speaker is installed in the direction in which the head frame extends is defined. ### Claim 17 (depends on 16) The chair of claim 16, wherein: at least one second speaker frame is disposed in the direction in which the head frame extends; the second speaker frame has a shape extending to a predetermined length in a direction crossing the direction in which the head frame extends; and the third speaker installation region is defined in at least one frame selected from the head frame and the second speaker frame. ### Claim 18 (depends on 17) The chair of claim 17, wherein the second speaker frame is connected to the head frame through a second rotation shaft and is provided to be rotatable within a predetermined angular range about an axial direction of the second rotation shaft. ### Claim 19 (depends on 12) The chair of claim 12, wherein: at least one head frame is installed on the seat portion or the side support, and has a shape which extends from the seat portion or the side support in a direction upward to the user seated on the chair; and a third speaker installation region in which at least one speaker is installed in the direction in which the head frame extends is defined.