# US 12,112,618 B2 · Methods and systems for path lighting > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,112,618 B2 - Document ID: US12112618B2 - Status: Granted - Kind: B2 - Application number: 17/237,846 - Filed: 2021-04-22 - Published: 2022-02-10 - Granted: 2024-10-08 - Earliest claimed: 2018-07-20 - Assignees: Comcast Cable Communications, LLC - Applicants: Comcast Cable Communications, LLC - Inventors: Arvind K. Mundra; Andrew Cannone; Nishant Doshi; Pragnesh Rabari; Alexander Cabinian; Krishna Chaitanya Madabooshi; Daniel Hillegass; Dipal Patel - Web page: https://patentgrep.com/patent/US12112618B2 ## CPC - G08B 7/066: {guiding along a path, e.g. evacuation path lighting strip} - G08B 5/36: using visible light sources - H05B 45/20: Controlling the colour of the light - H05B 47/105: in response to determined parameters - H05B 47/19: via wireless transmission - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract Methods and systems for illuminating a path are described. Data indicating a condition can be received by a lighting device. A light for output by the lighting device can be determined based on a location of the lighting device, such as a location of the lighting device relative to the condition and/or an egress. Data indicating the condition and/or data indicating the light for output can be transmitted to one or more other lighting devices, thereby illuminating a path away from the condition to the egress. ## Claims ### Claim 1 A method comprising: determining based on a location of a condition within a structure and a location of a user device within the structure, a path within the structure; causing, based on a location of a first lighting device relative to the condition, the first lighting device to output a first light output indicative of the path; and causing, based on the first light output and based on a location of a second lighting device relative to the condition and relative to the first lighting device, the second lighting device to output a second light output indicative of the path. ### Claim 2 (depends on 1) The method of claim 1, wherein determining the path within the structure comprises receiving, from a sensing device, an indication of the condition. ### Claim 3 (depends on 1) The method of claim 1, wherein the location of the user device within the structure is associated with at least one of: a global positioning system location associated with the user device or a network triangulation location associated with the user device. ### Claim 4 (depends on 1) The method of claim 1, wherein determining the path within the structure comprises determining a signal strength between the user device and at least one of: the first lighting device, at least one computing device, or at least one network device. ### Claim 5 (depends on 1) The method of claim 1, wherein the path is associated with an egress of the structure. ### Claim 6 (depends on 1) The method of claim 1, wherein causing the first lighting device to output the first light output comprises: determining, by the first lighting device, a location of the first lighting device relative to the condition and relative to an egress; and causing, based on the location of the first lighting device relative to the condition and relative to the egress, output of the first light output. ### Claim 7 (depends on 1) The method of claim 1, wherein causing the second lighting device to output the second light output comprises sending, from the first lighting device to the second lighting device, the first light output. ### Claim 8 (depends on 1) The method of claim 1, wherein the path is a path to at least one of: a door, a window, a staircase, or a fire escape. ### Claim 9 A system comprising: a computing device configured to: determine based on a location of a condition within a structure and a location of a user device within the structure, a path within the structure; cause, based on a location of a first lighting device relative to the condition, the first lighting device to output a first light output indicative of the path; cause, based on the first light output and based on a location of a second lighting device relative to the condition and relative to the first lighting device, the second lighting device to output a second light output indicative of the path; and the first lighting device configured to output the first light output; and the second lighting device configured to output the second light output. ### Claim 10 (depends on 9) The system of claim 9, wherein the computing device is configured to determine the path by receiving, from a sensing device, an indication of the condition. ### Claim 11 (depends on 9) The system of claim 9, wherein the location of the user device comprises at least one of: a global positioning system location associated with the user device or a network triangulation location associated with the user device. ### Claim 12 (depends on 9) The system of claim 9, wherein the computing device is configured to determine the path within the structure by determining a signal strength between the user device and at least one of: the first lighting device or at least one network device. ### Claim 13 (depends on 9) The system of claim 9, wherein the path is associated with an egress of the structure. ### Claim 14 (depends on 9) The system of claim 9, wherein the computing device is further configured to cause the first lighting device to send, to the second lighting device, the first light output. ### Claim 15 (depends on 9) The system of claim 9, wherein the path is a path to at least one of: a door, a window, a staircase, or a fire escape. ### Claim 16 An apparatus comprising: one or more processors; and memory storing processor executable instructions that, when executed by the one or more processors, cause the apparatus to: determine, based on a location of a condition within a structure and a location of a user device within the structure, a path within the structure; cause, based on a location of a first lighting device relative to the condition, the first lighting device to output a first light output indicative of the path; and cause, based on the first light output and based on a location of a second lighting device relative to the condition and relative to the first lighting device, the second lighting device to, output a second light output indicative of the path. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the processor executable instructions that, when executed by the one or more processors, cause the apparatus to determine the path further cause the apparatus to receive, from a sensing device, an indication of the condition. ### Claim 18 (depends on 16) The apparatus of claim 16, wherein the processor executable instructions, when executed by the one or more processors, further cause the apparatus to determine at least one of: determine a global positioning system location associated with the user device or a network triangulation location associated with the user device. ### Claim 19 (depends on 15) The apparatus of claim 15, wherein the processor executable instructions, when executed by the one or more processors, further cause the apparatus to: determine the location of the first lighting device relative to the condition and relative to an egress; and cause, based on the location of the first lighting device relative to the condition and relative to the egress, output of the first light output. ### Claim 20 (depends on 16) The apparatus of claim 16, wherein the processor executable instructions, when executed by the one or more processors, further cause the apparatus to cause the first lighting device, to send to the second lighting device the first light output. ### Claim 21 (depends on 16) The apparatus of claim 16, wherein the processor executable instructions, when executed by the one or more processors, further cause the apparatus to: determine the location of the second lighting device relative to the an egress; and cause, based on the location of the second lighting device relative to the egress, the second lighting device to output the second light output. ### Claim 22 (depends on 16) The apparatus of claim 16, wherein the path is a path to at least one of: a door, a window, a staircase, or a fire escape.