# US 2021/0176582 A1 · Information processing apparatus and method, and program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0176582 A1 - Document ID: US20210176582A1 - Status: Published application - Kind: A1 - Application number: 17/045,450 - Filed: 2019-03-29 - Published: 2021-06-10 - Earliest claimed: 2018-04-12 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Mitsuyuki HATANAKA; Toru CHINEN; Minoru TSUJI; Yuki YAMAMOTO - Web page: https://patentgrep.com/patent/US20210176582A1 ## CPC - H04S 7/303: {Tracking of listener position or orientation} - H04L 67/10: in which an application is distributed across nodes in the network (software deployment G06F8/60; multiprogramming arrangements G06F9/46) - G10L 19/008: Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing - G10L 25/51: for comparison or discrimination - H04N 21/234318: {by decomposing into objects, e.g. MPEG-4 objects} - H04N 21/44012: {involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs} - H04N 21/8106: {involving special audio data, e.g. different tracks for different languages} - H04S 2400/11: Positioning of individual sound objects, e.g. moving airplane, within a sound field (H04S2420/13 takes precedence) - H04S 2420/11: Application of ambisonics in stereophonic audio systems - H04S: STEREOPHONIC SYSTEMS - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - G10L: SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract The present technology relates to an information processing apparatus, an information processing method, and a program for achieving reduction of a processing load on a distribution side along with reduction of a transfer volume of information. The information processing apparatus includes an acquisition unit that acquires low accuracy position information having first accuracy and indicating a position of an object within a space where a user is located and acquires additional information for obtaining position information that has second accuracy higher than the first accuracy, indicates the position of the object within the space, and corresponds to a position of the user and a position information calculation unit that obtains the position information on the basis of the low accuracy position information and the additional information. The present technology is applicable to an information processing apparatus. ## Claims ### Claim 1 An information processing apparatus comprising: an acquisition unit that acquires low accuracy position information having first accuracy and indicating a position of an object within a space where a user is located and acquires additional information for obtaining position information that has second accuracy higher than the first accuracy, indicates the position of the object within the space, and corresponds to a position of the user; and a position information calculation unit that obtains the position information on a basis of the low accuracy position information and the additional information. ### Claim 2 (depends on 1) The information processing apparatus according to claim 1, wherein the position information calculation unit specifies the object that requires the additional information, on a basis of user position information indicating the position of the user and the low accuracy position information, and the acquisition unit acquires the additional information associated with the object included in one or a plurality of the objects and specified by the position information calculation unit. ### Claim 3 (depends on 2) The information processing apparatus according to claim 2, wherein the position information calculation unit determines the second accuracy of the position information from plural levels of accuracy on a basis of the user position information and the low accuracy position information, for each of the objects requiring the additional information. ### Claim 4 (depends on 2) The information processing apparatus according to claim 2, wherein each of the low accuracy position information and the position information includes information that indicates an absolute coordinate of the position of the object within the space, and the user position information includes information that indicates an absolute coordinate of the position of the user within the space. ### Claim 5 (depends on 4) The information processing apparatus according to claim 4, further comprising: a transformation unit that transforms the position information into polar coordinate information that indicates a relative position of the object as viewed from the user, on a basis of the position information and the user position information. ### Claim 6 (depends on 1) The information processing apparatus according to claim 1, wherein the additional information includes information that indicates a difference between the position information and the low accuracy position information. ### Claim 7 (depends on 1) The information processing apparatus according to claim 1, wherein the object includes an audio object. ### Claim 8 An information processing method performed by an information processing apparatus, comprising: acquiring low accuracy position information that has first accuracy and indicates a position of an object within a space where a user is located; acquiring additional information for obtaining position information that has second accuracy higher than the first accuracy, indicates the position of the object within the space, and corresponds to a position of the user; and obtaining the position information on a basis of the low accuracy position information and the additional information. ### Claim 9 A program under which a computer executes a process comprising steps of: acquiring low accuracy position information that has first accuracy and indicates a position of an object within a space where a user is located; acquiring additional information for obtaining position information that has second accuracy higher than the first accuracy, indicates the position of the object within the space, and corresponds to a position of the user; and obtaining the position information on a basis of the low accuracy position information and the additional information. ### Claim 10 An information processing apparatus comprising: a communication unit that transmits low accuracy position information having first accuracy and indicating a position of an object within a space where a user is located, and transmits additional information for obtaining position information having second accuracy higher than the first accuracy, indicating the position of the object within the space, and corresponding to a position of the user, in response to a request from a transmission destination of the low accuracy position information. ### Claim 11 (depends on 10) The information processing apparatus according to claim 10, wherein each of the low accuracy position information and the position information includes information that indicates an absolute coordinate of the position of the object within the space. ### Claim 12 (depends on 10) The information processing apparatus according to claim 10, wherein the additional information includes information that indicates a difference between the position information and the low accuracy position information. ### Claim 13 (depends on 12) The information processing apparatus according to claim 12, further comprising: a recording unit that records highest accuracy position information obtained by quantizing information indicating the position of the object with a quantized step width having highest accuracy; and a transmission information generation unit that generates the low accuracy position information or the additional information by extracting a part of the highest accuracy position information. ### Claim 14 (depends on 13) The information processing apparatus according to claim 13, wherein the quantized step width is set to a value obtained by multiplying a value of ½ raised to the power of an exponent by a constant. ### Claim 15 (depends on 10) The information processing apparatus according to claim 10, wherein the object includes an audio object. ### Claim 16 An information processing method performed by an information processing apparatus, comprising: transmitting low accuracy position information that has first accuracy and indicates a position of an object within a space where a user is located; and transmitting additional information for obtaining position information that has second accuracy higher than the first accuracy, indicates the position of the object within the space, and corresponds to a position of the user, in response to a request from a transmission destination of the low accuracy position information. ### Claim 17 A program under which a computer executes a process comprising steps of: transmitting low accuracy position information that has first accuracy and indicates a position of an object within a space where a user is located; and transmitting additional information for obtaining position information that has second accuracy higher than the first accuracy, indicates the position of the object within the space, and corresponds to a position of the user, in response to a request from a transmission destination of the low accuracy position information.