# US 2018/0020971 A1 · Information processing device, information processing 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 2018/0020971 A1 - Document ID: US20180020971A1 - Status: Published application - Kind: A1 - Application number: 15/552,577 - Filed: 2015-12-16 - Published: 2018-01-25 - Earliest claimed: 2015-03-27 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: YASUSHI TSURUTA - Web page: https://patentgrep.com/patent/US20180020971A1 ## CPC - A61B 5/16: Devices for psychotechnics (using teaching or educational appliances G09B1/00 - G09B7/00); Testing reaction times {; Devices for evaluating the psychological state} - A61B 5/4812: {Detecting sleep stages or cycles} - A61B 5/4815: {Sleep quality} - A61B 5/486: {Biofeedback (using electroencephalography [EEG] A61B5/375)} - A61M 21/00: Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis - G16H 10/20: for electronic clinical trials or questionnaires - G16H 40/67: for remote operation - G16H 50/00: ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics - A61B 5/0205: Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA ## Abstract There is provided an information processing device including: a sleep environment controlling unit configured to, when exerting control of, on the basis of a result of forecast of a transition of a depth of sleep of a user at least in a period from a first time to a second time, a sleeping environment of the user such that the depth of sleep at the second time falls below a first depth-of-sleep threshold value estimated as an upper limit of a first depth-of-sleep region in which the user is likely to awake, decide a temporal pattern of the control in the period from the first time to the second time in accordance with a temporal pattern of the transition. ## Claims ### Claim 1 An information processing device comprising: a sleep environment controlling unit configured to, when exerting control of, on the basis of a result of forecast of a transition of a depth of sleep of a user at least in a period from a first time to a second time, a sleeping environment of the user such that the depth of sleep at the second time falls below a first depth-of-sleep threshold value estimated as an upper limit of a first depth-of-sleep region in which the user is likely to awake, decide a temporal pattern of the control in the period from the first time to the second time in accordance with a temporal pattern of the transition. ### Claim 2 (depends on 1) The information processing device according to claim 1, wherein the temporal pattern of the transition includes a cyclical variation of the depth of sleep across a second depth-of-sleep threshold value estimated as a lower limit of a second depth-of-sleep region in which the user is unlikely to awake, and the temporal pattern of the control includes exerting control of the sleeping environment in a distributed manner among a plurality of times at which the depth of sleep is forecast to exceed the second depth-of-sleep threshold value. ### Claim 3 (depends on 2) The information processing device according to claim 2, wherein the temporal pattern of the control includes equally distributing the control of the sleeping environment among the plurality of times. ### Claim 4 (depends on 2) The information processing device according to claim 2, wherein the temporal pattern of the control includes distributing the control of the sleeping environment in a larger ratio to a time closer to the first time among the plurality of times. ### Claim 5 (depends on 2) The information processing device according to claim 2, wherein the control of the sleeping environment produces a delay in the transition of the depth of sleep. ### Claim 6 (depends on 2) The information processing device according to claim 2, wherein the second depth-of-sleep threshold value is estimated on the basis of whether the user awakes when the control of the sleeping environment is exerted for the user. ### Claim 7 (depends on 2) The information processing device according to claim 2, wherein the second depth-of-sleep threshold value is a value estimated for another user similar to the user. ### Claim 8 (depends on 1) The information processing device according to claim 1, wherein the temporal pattern of the transition includes a cyclical variation of the depth of sleep, the temporal pattern of the control includes controlling the sleeping environment continuously from the first time to the second time, and the control of the sleeping environment produces a change in varying cycle of the depth of sleep. ### Claim 9 (depends on 1) The information processing device according to claim 1, wherein the first depth-of-sleep threshold value is estimated on the basis of feedback from the user acquired after the user awakes. ### Claim 10 (depends on 1) The information processing device according to claim 1, wherein the first depth-of-sleep threshold value is a value estimated for another user similar to the user. ### Claim 11 (depends on 1) The information processing device according to claim 1, wherein the temporal pattern of the transition includes a cyclical variation of the depth of sleep, and the sleep environment controlling unit decides the temporal pattern of the control in accordance with a varying cycle of the depth of sleep estimated on the basis of transition performance of the depth of sleep. ### Claim 12 (depends on 1) The information processing device according to claim 1, wherein the temporal pattern of the transition includes a cyclical variation of the depth of sleep, and the sleep environment controlling unit decides the temporal pattern of the control in accordance with a varying cycle of the depth of sleep estimated for another user similar to the user. ### Claim 13 (depends on 12) The information processing device according to claim 12, wherein the other user similar to the user is extracted on the basis of similarity of characteristics in attribute, activity performance, or depth of sleep between the user and the other user. ### Claim 14 (depends on 13) The information processing device according to claim 13, wherein the characteristic of the depth of sleep includes any of the first depth-of-sleep threshold value, a second depth-of-sleep threshold value estimated as a lower limit of a second depth-of-sleep region in which the user is unlikely to awake, and a varying cycle of the depth of sleep. ### Claim 15 (depends on 1) The information processing device according to claim 1, wherein the sleep environment controlling unit decides a type of the control or the temporal pattern of the control in accordance with a circumstance of the user. ### Claim 16 (depends on 1) The information processing device according to claim 1, wherein the sleep environment controlling unit decides a type of the control in accordance with the temporal pattern of the transition. ### Claim 17 An information processing method comprising: when exerting control of, on the basis of a result of forecast of a transition of a depth of sleep of a user at least in a period from a first time to a second time, a sleeping environment of the user such that the depth of sleep at the second time falls below a first depth-of-sleep threshold value estimated as an upper limit of a first depth-of-sleep region in which the user is likely to awake, causing a processor to decide a temporal pattern of the control in the period from the first time to the second time in accordance with a temporal pattern of the transition. ### Claim 18 A program for causing a computer to achieve a function of, when exerting control of, on the basis of a result of forecast of a transition of a depth of sleep of a user at least in a period from a first time to a second time, a sleeping environment of the user such that the depth of sleep at the second time falls below a first depth-of-sleep threshold value estimated as an upper limit of a first depth-of-sleep region in which the user is likely to awake, deciding a temporal pattern of the control in the period from the first time to the second time in accordance with a temporal pattern of the transition.