# US 11,906,321 B2 · Map display device and map display method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,321 B2 - Document ID: US11906321B2 - Status: Granted - Kind: B2 - Application number: 17/260,017 - Filed: 2018-10-01 - Published: 2021-10-07 - Granted: 2024-02-20 - Earliest claimed: 2018-10-01 - Assignees: Mitsubishi Electric Corporation - Applicants: Mitsubishi Electric Corporation - Inventors: Satoshi Matsumaru - Web page: https://patentgrep.com/patent/US11906321B2 ## CPC - G01C 21/3694: {Output thereof on a road map} - B60K 35/10: Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor - B60K 35/22: Display screens - B60K 35/265: {Voice} - B60K 35/28: characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver - B60K 35/29: Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions - B60K 35/81: for controlling displays - B60K 35/85: Arrangements for transferring vehicle- or driver-related data - G01C 21/3461: {Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types or segments such as motorways, toll roads or ferries} - G01C 21/3658: {Lane guidance} - G08G 1/096716: {where the received information does not generate an automatic action on the vehicle control} - G08G 1/0969: having a display in the form of a map - B60K 2360/166: Navigation - B60K 2360/167: Vehicle dynamics information - B60K 2360/1868: according to driving situations - B60K 2360/21: using cameras - B60K 2360/347: Optical elements for superposition of display information - B60K 2360/595: Data transfer involving internal databases - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - 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}) ## Abstract An object of the present invention is to display a list of traffic information of a plurality of lanes. A map display device of the present invention includes a traffic information acquisition unit that acquires traffic information for a road including a plurality of lanes for each lane, and a display control unit that creates a road map image that represents a road for each lane using map data having lane link data, and causes a display device mounted on a vehicle to display thereof, in which the display control unit superimposes the traffic information on the corresponding lane in the road map image. ## Claims ### Claim 1 A map display method comprising: acquiring traffic information for each lane of a road including a plurality of lanes, traffic information for a first road intersecting the road at a first intersection and traffic information for a second road intersecting the road at a second intersection ahead of the first intersection; creating a road map image representing the road for each lane, a road map image representing the first road, and a road map image representing the second road using map data having lane link data representing the road by links for each lane, and map data for the first road and the second road; and causing a display device mounted on a vehicle to display the road map image, wherein the traffic information is superimposed on the corresponding lane, the first road, and the second road in the road map image and includes at least any of information on degree of congestion and information on a place where an accident occurs. ### Claim 2 A map display device comprising: a traffic information receiver configured to acquire traffic information for each lane of a road including a plurality of lanes, traffic information for a first road intersecting the road at a first intersection and traffic information for a second road intersecting the road at a second intersection ahead of the first intersection; and a display control circuitry configured to create a road map image representing the road for each lane, a road map image representing the first road, and a road map image representing the second road using map data having lane link data representing the road by links for each lane, and map data for the first road and the second road, and cause a display device mounted on a vehicle to display thereof, wherein the display control circuitry is configured to superimpose the traffic information on the corresponding lane, the first road, and the second road in the road map image, and the traffic information includes at least any of information on degree of congestion and information on a place where an accident occurs. ### Claim 3 (depends on 2) The map display device according to claim 2, further comprising: a current position detection circuitry configured to acquire position information of the vehicle; a route search circuitry configured to search a travel route for the vehicle based on the position information of the vehicle; and a lane route setting circuitry configured to select, based on the traffic information of each lane of the traveling route, at least one lane as a recommended lane for each section of the traveling route, and sets a route in which the recommended lane is connected to a plurality of continuous sections of the traveling route as the recommended traveling lane route, wherein the display control circuitry is configured to set the traveling recommended lane route in a display mode different from other lanes in the road map image.