# US 11,443,716 B2 · Adjusting signal settings for a display using a light sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,443,716 B2 - Document ID: US11443716B2 - Status: Granted - Kind: B2 - Application number: 17/385,733 - Filed: 2021-07-26 - Published: 2021-12-09 - Granted: 2022-09-13 - Earliest claimed: 2020-06-08 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Marshall W. Huss; Maxim Stepanov; Manik Kalra; Christopher J. Sanders; Vijay Sundaram; Osborn F. de Lima; Shahram Peyvandi; Adria Fores Herranz; Jiaying Wu; Lu Zhang - Web page: https://patentgrep.com/patent/US11443716B2 ## CPC - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G09G 5/10: Intensity circuits - G09G 3/3413: {Details of control of colour illumination sources} - H04M 1/2473: {Telephone terminals interfacing a personal computer, e.g. using an API (Application Programming Interface) (details of API H04M7/0021)} - G09G 2320/0666: for control of colour parameters, e.g. colour temperature - G09G 2320/0693: Calibration of display systems - G09G 2360/145: the light originating from the display screen - H04M 1/72412: using two-way short-range wireless interfaces - H04M 2250/06: including a wireless LAN interface - H04M 2250/12: including a sensor for measuring a physical value, e.g. temperature or motion - H04M 2250/52: including functional features of a camera - H04M 2250/64: file transfer between terminals - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract In some implementations, a mobile computing device may participate in the calibration of an output signal of a media device. This calibration process includes storing device-specific calibration data which is related to properties of a light sensor of the mobile device. The mobile device then detects of properties of light emitted by the display device during a presentation to obtain sensor values related to light emitted by the display device during the presentation. The calibration process may also ensure that the mobile device is proximate to the display device prior to obtaining the sensor values. The collected sensor values are adjusted using device-specific calibration data stored to the mobile device to normalize the sensor values relative to a baseline. These normalized sensor values are sent to the media device for use in adjusting the output signal based on the normalized sensor values. ## Claims ### Claim 1 A method, comprising: initiating calibration of an output signal of a media device, the media device providing the output signal to a display device; sending, by a mobile device, a message to the media device to begin a presentation on the display device; detecting, using a light sensor of the mobile device, properties of light emitted by the display device during the presentation to obtain sensor values related to the light emitted by the display device; and sending, by the mobile device, the sensor values to the media device, wherein the media device adjusts the output signal based on the sensor values. ### Claim 2 (depends on 1) The method as recited in claim 1, further comprising: storing, by the mobile device, device-specific calibration data to the mobile device, the calibration data relating to properties of the light sensor of the mobile device; and adjusting, by the mobile device, the sensor values using the device-specific calibration data to normalize the sensor values relative to a baseline prior to sending the sensor values to the media device. ### Claim 3 (depends on 2) The method as recited in claim 2, further comprising detecting, using the light sensor of the mobile device, properties of light emitted by the display device during one or more additional presentations subsequent to adjusting the sensor values to produce refined sensor values relative to the baseline. ### Claim 4 (depends on 1) The method as recited in claim 1, further comprising: detecting, using a proximity sensor of the mobile device, a proximity of the mobile device relative to a display device, and wherein the message is sent to the media device to begin the presentation in response to the mobile device being proximate to the display device. ### Claim 5 (depends on 4) The method as recited in claim 4, further comprising: in response to detecting that the mobile device is not proximate to the display device: providing, by the mobile device, non-visual positioning instructions to a user of the mobile device, the positioning instructions directing the user to place the mobile device at a preferred distance from the display device, wherein the non-visual positioning instructions are selected from a group consisting of: audio signals and haptic signals. ### Claim 6 (depends on 1) The method as recited in claim 1, wherein the properties of light emitted by the display device comprise a quantity of light and a saturation level of one or more particular colors of light. ### Claim 7 (depends on 1) The method as recited in claim 1, wherein the properties of light emitted by the display device during the presentation are obtained while the mobile device is positioned at a first location relative to the display device, the method further comprising: detecting, using the light sensor of the mobile device while the mobile device is positioned at a second location relative to the display device, second properties of light emitted by the display device during the presentation to obtain second sensor values related to the light emitted by the display device; and sending, by the mobile device, the second sensor values to the media device. ### Claim 8 (depends on 1) The method as recited in claim 1, wherein initiating calibration of the output signal of the media device comprises: receiving, by the mobile device, a message broadcast from the media device; in response to receiving the message: displaying, by the mobile device, a notification on a display of the mobile device, the notification requesting participation in calibration of the media device; and in response to user input accepting participation in the calibration of the media device: displaying, by the mobile device, instructions to position the light sensor of the mobile device near the display device. ### Claim 9 A non-transitory computer-readable medium including one or more sequences of instructions stored thereon that, when executed by one or more processors, cause the one or more processors to perform operations comprising: initiating calibration of an output signal of a media device, the media device providing the output signal to a display device; sending, by a mobile device, a message to the media device to begin a presentation on the display device; detecting, using a light sensor of the mobile device, properties of light emitted by the display device during the presentation to obtain sensor values related to the light emitted by the display device; and sending, by the mobile device, the sensor values to the media device, wherein the media device adjusts the output signal based on the sensor values. ### Claim 10 (depends on 9) The non-transitory computer-readable medium as recited in claim 9, wherein the operations further comprise: storing, by the mobile device, device-specific calibration data to the mobile device, the calibration data relating to properties of the light sensor of the mobile device; and adjusting, by the mobile device, the sensor values using the device-specific calibration data to normalize the sensor values relative to a baseline prior to sending the sensor values to the media device. ### Claim 11 (depends on 10) The non-transitory computer-readable medium as recited in claim 10, wherein the operations further comprise detecting, using the light sensor of the mobile device, properties of light emitted by the display device during one or more additional presentations subsequent to adjusting the sensor values to produce refined sensor values relative to the baseline. ### Claim 12 (depends on 9) The non-transitory computer-readable medium as recited in claim 9, wherein the operations further comprise: detecting, using a proximity sensor of the mobile device, a proximity of the mobile device relative to a display device, and wherein the message is sent to the media device to begin the presentation in response to the mobile device being proximate to the display device. ### Claim 13 (depends on 12) The non-transitory computer-readable medium as recited in claim 12, wherein the operations further comprise: in response to detecting that the mobile device is not proximate to the display device: providing, by the mobile device, non-visual positioning instructions to a user of the mobile device, the positioning instructions directing the user to place the mobile device at a preferred distance from the display device, wherein the non-visual positioning instructions are selected from a group consisting of: audio signals and haptic signals. ### Claim 14 (depends on 9) The non-transitory computer-readable medium as recited in claim 9, wherein the properties of light emitted by the display device comprise a quantity of light and a saturation level of one or more particular colors of light. ### Claim 15 (depends on 9) The non-transitory computer-readable medium as recited in claim 9, wherein the properties of light emitted by the display device during the presentation are obtained while the mobile device is positioned at a first location relative to the display device, and wherein the operations further comprise: detecting, using the light sensor of the mobile device while the mobile device is positioned at a second location relative to the display device, second properties of light emitted by the display device during the presentation to obtain second sensor values related to the light emitted by the display device; and sending, by the mobile device, the second sensor values to the media device. ### Claim 16 (depends on 9) The non-transitory computer-readable medium as recited in claim 9, wherein initiating calibration of the output signal of the media device comprises: receiving, by the mobile device, a message broadcast from the media device; in response to receiving the message: displaying, by the mobile device, a notification on a display of the mobile device, the notification requesting participation in calibration of the media device; and in response to user input accepting participation in the calibration of the media device: displaying, by the mobile device, instructions to position the light sensor of the mobile device near the display device. ### Claim 17 A system, comprising: one or more processors; and a non-transitory computer-readable medium including one or more sequences of instructions stored thereon that, when executed by the one or more processors, cause the one or more processors to perform operations comprising: initiating calibration of an output signal of a media device, the media device providing the output signal to a display device; sending, by a mobile device, a message to the media device to begin a presentation on the display device; detecting, using a light sensor of the mobile device, properties of light emitted by the display device during the presentation to obtain sensor values related to the light emitted by the display device; and sending, by the mobile device, the sensor values to the media device, wherein the media device adjusts the output signal based on the sensor values. ### Claim 18 (depends on 17) The system as recited in claim 17, wherein the properties of light emitted by the display device comprise a quantity of light and a saturation level of one or more particular colors of light. ### Claim 19 (depends on 17) The system as recited in claim 17, wherein the properties of light emitted by the display device during the presentation are obtained while the mobile device is positioned at a first location relative to the display device, and wherein the operations further comprise: detecting, using the light sensor of the mobile device while the mobile device is positioned at a second location relative to the display device, second properties of light emitted by the display device during the presentation to obtain second sensor values related to the light emitted by the display device; and sending, by the mobile device, the second sensor values to the media device. ### Claim 20 (depends on 17) The system as recited in claim 17, wherein initiating calibration of the output signal of the media device comprises: receiving, by the mobile device, a message broadcast from the media device; in response to receiving the message: displaying, by the mobile device, a notification on a display of the mobile device, the notification requesting participation in calibration of the media device; and in response to user input accepting participation in the calibration of the media device: displaying, by the mobile device, instructions to position the light sensor of the mobile device near the display device.