# US 12,217,666 B1 · Methods and systems for managing lighting on a transportation vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,217,666 B1 - Document ID: US12217666B1 - Status: Granted - Kind: B1 - Application number: 18/228,375 - Filed: 2023-07-31 - Published: 2025-02-06 - Granted: 2025-02-04 - Earliest claimed: 2023-07-31 - Assignees: Panasonic Avionics Corporation - Applicants: Panasonic Avionics Corporation - Inventors: Jeff Santiago; Gerald Espeleta - Web page: https://patentgrep.com/patent/US12217666B1 ## CPC - G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED] - B64D 11/00: Passenger or crew accommodation; Flight-deck installations not otherwise provided for - B64D 11/0015: {Arrangements for entertainment or communications, e.g. radio, television} - B64D 2011/0038: {Illumination systems for cabins as a whole} - G09G 2320/043: Preventing or counteracting the effects of ageing - G09G 2320/0626: for control of overall brightness - G09G 2320/0686: with two or more screen areas displaying information with different brightness or colours - G09G 2360/144: the light being ambient light - 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) - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT ## Abstract Methods and systems are provided for a transportation vehicle. One method includes determining ambient light baseline for the flight by measuring a first light intensity by a plurality of light sensors located within a plurality of physical zones of an aircraft cabin, before a flight and transforming the measured first light intensity based on sensor locations within each physical zone of the aircraft cabin; adjusting brightness level of seat display device at passenger seats located in the aircraft cabin based on the ambient light baseline; continuing to measure in-flight light intensity by the plurality of sensors; and automatically adjusting the brightness level of one or more seat display devices in response to the in-flight light intensity varying from the ambient light baseline by a first threshold value. ## Claims ### Claim 1 A method executed by one or more processors, comprising: before a flight, determining ambient light baseline for the flight by measuring a first light intensity based on a plurality of first light sensor data measured respectively by a plurality of light sensors located within a plurality of physical zones of an aircraft cabin, and transforming the measured first light intensity into the ambient light baseline based on sensor locations within each physical zone of the aircraft cabin; adjusting brightness level of seat display device at passenger seats located in the aircraft cabin based on the ambient light baseline; continuing to measure in-flight light intensity by the plurality of sensors; and automatically adjusting the brightness level of one or more seat display devices in response to the in-flight light intensity varying from the ambient light baseline by a first threshold value. ### Claim 2 (depends on 1) The method of claim 1, wherein the first light intensity is measured before the flight is boarded. ### Claim 3 (depends on 2) The method of claim 2, further comprising measuring a second light intensity based on a plurality of second light sensor data measured respectively by the plurality of sensors, after the flight is boarded and before take-off, and updating the measured second light intensity based on the sensor locations. ### Claim 4 (depends on 3) The method of claim 3, further comprising: updating the ambient light baseline, in response to the updated second light intensity varying from the ambient light baseline by a second threshold value. ### Claim 5 (depends on 1) The method of claim 1, further comprising: for transforming the first light intensity, using a first weighting factor for a first set of light sensors located near a foot area of each seat, a second weighting factor for a set of light sensors installed at wall locations within the aircraft cabin, and a third weighting factor for a set of light sensors located at seat back head area of the passenger seats within the aircraft cabin. ### Claim 6 (depends on 5) The method of claim 5, wherein the first weighting factor is smaller than the second and the third weighting factor. ### Claim 7 (depends on 1) The method of claim 1, wherein the physical zones of the aircraft cabin are configured such that each passenger seat is assigned at least two light sensors. ### Claim 8 A non-transitory machine-readable storage medium having stored thereon instructions for performing a method, comprising machine executable code which when executed by at least one machine, causes the machine to: before a flight, determine ambient light baseline for the flight by measuring a first light intensity based on a plurality of first light sensor data measured respectively by a plurality of light sensors located within a plurality of physical zones of an aircraft cabin, and transform the measured first light intensity into the ambient light baseline based on sensor locations within each physical zone of the aircraft cabin; adjust brightness level of seat display device at passenger seats located in the aircraft cabin based on the ambient light baseline; continue to measure in-flight light intensity by the plurality of sensors; and automatically adjust the brightness level of one or more seat display devices in response to the in-flight light intensity varying from the ambient light baseline by a first threshold value. ### Claim 9 (depends on 8) The non-transitory machine-readable storage medium of claim 8, wherein the first light intensity is measured before the flight is boarded. ### Claim 10 (depends on 9) The non-transitory machine-readable storage medium of claim 9, wherein a second light intensity is measured based on a plurality of second light sensor data measured respectively by the plurality of sensors, after the flight is boarded and before take-off, and the measured second light intensity is updated based on the sensor locations. ### Claim 11 (depends on 10) The non-transitory machine-readable storage medium of claim 10, wherein the ambient light baseline is updated, in response to the updated second light intensity varying from the ambient light baseline by a second threshold value. ### Claim 12 (depends on 8) The non-transitory machine-readable storage medium of claim 8, wherein for transforming the first light intensity, use a first weighting factor for a first set of light sensors located near a foot area of each seat, a second weighting factor for a set of light sensors installed at wall locations within the aircraft cabin, and a third weighting factor for a set of light sensors located at seat back head area of the passenger seats within the aircraft cabin. ### Claim 13 (depends on 12) The non-transitory machine-readable storage medium of claim 12, wherein the first weighting factor is smaller than the second and the third weighting factor. ### Claim 14 (depends on 8) The non-transitory machine-readable storage medium of claim 8, wherein the physical zones of the aircraft cabin are configured such that each passenger seat is assigned at least two light sensors. ### Claim 15 A system, comprising: a memory containing machine readable medium comprising machine executable code having stored thereon instructions; and a processor coupled to the memory to execute the machine executable code to: before a flight, determine ambient light baseline for the flight by measuring a first light intensity based on a plurality of first light sensor data measured respectively by a plurality of light sensors located within a plurality of physical zones of an aircraft cabin, and transform the measured first light intensity into the ambient light baseline based on sensor locations within each physical zone of the aircraft cabin; adjust brightness level of seat display device at passenger seats located in the aircraft cabin based on the ambient light baseline; continue to measure in-flight light intensity by the plurality of sensors; and automatically adjust the brightness level of one or more seat display devices in response to the in-flight light intensity varying from the ambient light baseline by a first threshold value. ### Claim 16 (depends on 15) The system of claim 15, wherein the first light intensity is measured before the flight is boarded. ### Claim 17 (depends on 16) The system of claim 16, wherein a second light intensity is measured based on a plurality of second light sensor data measured respectively by the plurality of sensors, after the flight is boarded and before take-off, and the measured second light intensity is updated based on the sensor locations. ### Claim 18 (depends on 15) The system of claim 15, wherein the ambient light baseline is updated, in response to the updated second light intensity varying from the ambient light baseline by a second threshold value. ### Claim 19 (depends on 15) The system of claim 15, wherein for transforming the first flight light intensity, use a first weighting factor for a first set of light sensors located near a foot area of each seat, a second weighting factor for a set of light sensors installed at wall locations within the aircraft cabin, and a third weighting factor for a set of light sensors located at seat back head area of the passenger seats within the aircraft cabin. ### Claim 20 (depends on 19) The system of claim 19, wherein the first weighting factor is smaller than the second and the third weighting factor.