# US 11,998,121 B2 · Member for chair including multi-channel sound system and chair including the member > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,121 B2 - Document ID: US11998121B2 - Status: Granted - Kind: B2 - Application number: 16/984,684 - Filed: 2020-08-04 - Published: 2021-05-06 - Granted: 2024-06-04 - Earliest claimed: 2019-10-30 - Assignees: Tround Inc. - Applicants: Tround Inc. - Inventors: Jea Bum Park - Web page: https://patentgrep.com/patent/US11998121B2 ## CPC - A47C 7/727: {with speakers} - H04R 5/023: {in a chair, pillow} - A47C 7/38: for the head, e.g. detachable - A47C 15/004: {Seating furniture for specified purposes not covered by main groups A47C1/00 or A47C9/00} - H04R 1/025: {Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture} - H04R 1/028: {associated with devices performing functions other than acoustics, e.g. electric candles} - H04R 2201/401: 2D or 3D arrays of transducers - 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) ## Abstract The present invention relates to a member for a chair including a multi-channel sound system and a chair including the member, and more particularly, to a member for a chair including a multi-channel sound system, the member 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 a chair including the member. ## Claims ### Claim 1 A member for a chair, comprising: a fixing portion; a first speaker mounting member extending from the fixing portion through a left side of a user sitting on the chair to a front of the user and having a plurality of first speakers installed on a first surface facing the user; and a second speaker mounting member extending from the fixing portion through a right side of the user sitting on the chair to the front of the user and having a plurality of second speakers installed on a second surface facing the user, wherein the plurality of first speakers are positioned to be spaced at a first predetermined interval from each other, on the first surface facing the user, and the plurality of second speakers are positioned to be spaced at a second predetermined interval from each other, on the second surface facing the user, wherein an end of the first speaker mounting member and an end of the second speaker mounting member are located in front of the user and are spaced apart from each other, wherein at least one of the plurality of first speakers and at least one of the plurality of second speakers are located in front of the user, and output sound toward the user from the front of the user, wherein the plurality of first speakers and the plurality of second speakers are configured to receive a multi-channel sound signal and implement a multi-channel sound system, wherein the first speaker mounting member comprises a first slide space and first slide rails, and each first speaker of the plurality of first speakers are configured to be slidably movable toward a left or right of a first direction in which the first speaker mounting member extends, along the first slide rails, in the first slide space, and wherein the second speaker mounting member comprises a second slide space and second slide rails, and each second speaker of the plurality of second speakers are configured to be slidably movable toward a left or right of a second direction in which the second speaker mounting member extends, along the second slide rails, in the second slide space. ### Claim 2 (depends on 1) The member of claim 1, wherein each first speaker of the plurality of first speakers are configured to be axially rotatable on the basis of an axis of each first speaker, that is perpendicular to the first direction, and wherein each second speaker of the plurality of second speakers are configured to be axially rotatable on the basis of an axis of each second speaker, that is perpendicular to the second direction. ### Claim 3 (depends on 1) The member of claim 1, wherein the first speaker mounting member and the second speaker mounting member are hinge-pivotably installed on the fixing portion. ### Claim 4 (depends on 1) The member of claim 1, further comprising: at least one third speaker mounting member extending from the fixing portion through the top of the user sitting on the chair to the front of the user and having a plurality of third speakers installed on a third surface facing the user. ### Claim 5 (depends on 4) The member of claim 4, wherein the third speaker mounting member is hinge-pivotably installed on the fixing portion. ### Claim 6 (depends on 4) The member of claim 4, wherein at least one third speaker among the plurality of third speakers is installed to be slidably movable along a direction in which the third speaker mounting member extends. ### Claim 7 (depends on 4) The member of claim 4, further comprising at least auxiliary speaker mounting member provided in at least one area selected from a space between the first speaker mounting member and the third speaker mounting member and a space between the second speaker mounting member and the third speaker mounting member. ### Claim 8 (depends on 4) The member of claim 4, further comprising: a plurality of third speakers each of which is positioned on an inner surface of the at least one third speaker mounting member, and the plurality of third speakers are positioned to be spaced at a third predetermined interval from each other, on the inner surface of the at least one third speaker mounting member. ### Claim 9 (depends on 1) The member of claim 1, further comprising a coupling portion configured to couple the fixing portion to the chair. ### Claim 10 A chair comprising 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, and 3) a seat portion configured to support a buttocks part and part of legs of the user, the chair comprising a member for a chair, which is installed in at least one selected from the headrest portion, the backrest portion, and the seat portion, wherein the member comprises: a fixing portion; a first speaker mounting member extending from the fixing portion through a left side of a user sitting on the chair to a front of the user and having a plurality of first speakers installed on a first surface facing the user; and a second speaker mounting member extending from the fixing portion through a right side of the user sitting on the chair to the front of the user and having a plurality of second speakers installed on a second surface facing the user, wherein the plurality of first speakers are positioned to be spaced at a first predetermined interval from each other, on the first surface facing the user, and the plurality of second speakers are positioned to be spaced at a second predetermined interval from each other, on the second surface facing the user, wherein an end of the first speaker mounting member and an end of the second speaker mounting member are located in front of the user and are spaced apart from each other, wherein at least one of the plurality of first speakers and at least one of the plurality of second speakers are located in front of the user, and output sound toward the user from the front of the user, wherein the plurality of first speakers and the plurality of second speakers are configured to receive a multi-channel sound signal and implement a multi-channel sound system, wherein the first speaker mounting member comprises a first slide space and first slide rails, and each first speaker of the plurality of first speakers are configured to be slidably movable toward a left or right of a first direction in which the first speaker mounting member extends, along the first slide rails, in the first slide space, and wherein the second speaker mounting member comprises a second slide space and second slide rails, and each second speaker of the plurality of second speakers are configured to be slidably movable toward a left or right of a second direction in which the second speaker mounting member extends, along the second slide rails, in the second slide space. ### Claim 11 (depends on 10) The chair of claim 10, wherein the member is integrally provided with the headrest portion or the backrest portion. ### Claim 12 (depends on 10) The chair of claim 10, wherein the headrest portion replaces the fixing portion of the member, and wherein the first speaker mounting member and the second speaker mounting member are provided to extend from the headrest portion. ### Claim 13 (depends on 10) The chair of claim 10, wherein the backrest portion replaces the fixing portion of the member, and wherein the first speaker mounting member and the second speaker mounting member are provided to extend from the backrest portion. ### Claim 14 (depends on 10) The chair of claim 10, further comprising at least one third speaker mounting member provided to extend above the fixing portion and in which at least one speaker is installed. ### Claim 15 (depends on 10) The chair of claim 10, further comprising a coupling portion configured to couple the fixing portion to the chair. ### Claim 16 (depends on 10) The chair of claim 10, wherein each first speaker of the plurality of first speakers are configured to be axially rotatable on the basis of an axis of each first speaker, that is perpendicular to the first direction, and wherein each second speaker of the plurality of second speakers are configured to be axially rotatable on the basis of an axis of each second speaker, that is perpendicular to the second direction.