# US 12,112,619 B2 · Control device, system, and pedestrian support method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,112,619 B2 - Document ID: US12112619B2 - Status: Granted - Kind: B2 - Application number: 18/232,878 - Filed: 2023-08-11 - Published: 2023-11-30 - Granted: 2024-10-08 - Earliest claimed: 2021-07-13 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Shin Sakurada; Kazuya Nishimura; Soutaro Kaneko - Web page: https://patentgrep.com/patent/US12112619B2 ## CPC - G08G 1/005: including pedestrian guidance indicator - E01F 9/582: illuminated - G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93}) - E01F: ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE ## Abstract A control device includes a control unit configured to execute controls of displaying, on a roadway, a first crosswalk toward a first side of a roadway and displaying, on the roadway, a second crosswalk toward a second side of the roadway, and concealing the first crosswalk from the first side toward the second side while a pedestrian is crossing the roadway from the first side to the second side through the first crosswalk and the second crosswalk and concealing the second crosswalk after the pedestrian has crossed the roadway. The second side is opposite to the first side. ## Claims ### Claim 1 A pedestrian support method comprising: capturing, with a camera, an image of a range in which a plurality of first light sources and a plurality of second light sources are installed, wherein the plurality of first light sources are installed on a roadway and configured to display a first crosswalk by emitting light toward a first side and the plurality of second light sources are installed on the roadway and configured to display a second crosswalk by emitting light toward a second side, the second side being opposite to the first side; acquiring and analyzing the image captured by the camera; concealing the first crosswalk from the first side toward the second side while a pedestrian is crossing the roadway from the first side to the second side through the first crosswalk and the second crosswalk; and concealing the second crosswalk after the pedestrian has crossed the roadway. ### Claim 2 (depends on 1) The pedestrian support method according to claim 1, wherein the concealing of the first crosswalk includes expanding a concealed range of the first crosswalk as the pedestrian advances on the roadway. ### Claim 3 (depends on 1) The pedestrian support method according to claim 1, wherein the concealing of the first crosswalk includes concealing an area of the first crosswalk through which the pedestrian has passed while the pedestrian is crossing. ### Claim 4 (depends on 1) The pedestrian support method according to claim 1, further comprising: adjusting a time when the first crosswalk begins to be concealed according to an expected arrival time when another pedestrian following the pedestrian arrives at an end of the first crosswalk on the first side. ### Claim 5 (depends on 4) The pedestrian support method according to claim 4, wherein the adjusting includes setting, in a case where a time period from a time when the pedestrian starts crossing the roadway to the expected arrival time is less than a threshold, the time when the first crosswalk begins to be concealed to be later than the expected arrival time. ### Claim 6 (depends on 1) The pedestrian support method according to claim 1, further comprising: concealing, in a case where the pedestrian is considered as a first pedestrian, and there is a second pedestrian crossing the roadway from the second side to the first side through the first crosswalk and the second crosswalk while the first pedestrian is crossing, the second crosswalk from the second side toward the first side while the second pedestrian is crossing. ### Claim 7 (depends on 6) The pedestrian support method according to claim 6, wherein the concealing of the second crosswalk includes expanding a concealed range of the second crosswalk as the second pedestrian advances on the roadway. ### Claim 8 (depends on 6) The pedestrian support method according to claim 6, wherein the concealing of the second crosswalk includes concealing an area of the second crosswalk through which the second pedestrian has passed while the second pedestrian is crossing. ### Claim 9 (depends on 6) The pedestrian support method according to claim 6, further comprising: continuing, in a case where there is no second pedestrian while the first pedestrian is crossing, displaying all of the second crosswalk until the first pedestrian finishes crossing the roadway.