Electronic device, vehicle, display control method, and storage medium

Patent metadata

Field	Value
Publication number	US-12420824-B2
Application number	US-202318468767-A
Country	US
Kind code	B2
Filing date	Sep 18, 2023
Priority date	Sep 26, 2022
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

An electronic device includes a storage that stores map information, an acquisition part that acquires a speed limit indicated by a sign included in a captured image generated by a camera included in a vehicle and a position of the vehicle, and a display control part that causes a display part to display the speed limit indicated by the sign included in the captured image, wherein the display control part does not cause the display part to display a speed limit which is acquired by the acquisition part while a distance between the vehicle and a branch point is less than a threshold value.

First claim

What is claimed is:

1. An electronic device comprising:
a storage that stores map information;
an acquisition part that acquires a speed limit indicated by a sign included in a captured image generated by a camera included in a vehicle and a position of the vehicle; and
a display control part that causes a display part to display the speed limit indicated by the sign included in the captured image,
wherein the display control part does not cause the display part to display a speed limit which is acquired by the acquisition part while a distance between the vehicle and a branch point is less than a threshold value, and
wherein the display control part causes the display part to display the speed limit which is acquired by the acquisition part while the distance between the vehicle and the branch point is less than the threshold value, when it is determined that the vehicle enters a branch road.

2. A vehicle comprising:
the electronic device according to claim 1 ; and
the camera that generates the captured image.

3. An electronic device comprising:
a storage that stores map information;
an acquisition part that acquires a speed limit indicated by a sign included in a captured image generated by a camera included in a vehicle and a position of the vehicle; and
a display control part that causes a display part to display the speed limit indicated by the sign included in the captured image,
wherein the map information includes a plurality of lane positions and a type of lane corresponding to each of the plurality of lane positions,
wherein the display control part does not cause the display part to display a speed limit which is acquired by the acquisition part while a distance between the vehicle and a branch point is less than a threshold value, and
wherein the display control part causes the display part to display the speed limit which is acquired by the acquisition part while the vehicle is traveling at a position at which the distance is less than the threshold value, on condition that a type of lane in which the vehicle travels before passing through the branch point is different from a type of lane in which the vehicle travels after passing through the branch point.

4. The electronic device according to claim 3 , wherein
the display control part causes the display part to display the speed limit which is acquired by the acquisition part while the vehicle is traveling at the position at which the distance is less than the threshold value, and the type of lane in which the vehicle travels after passing through the branch point.

5. A vehicle comprising:
the electronic device according to claim 3 ; and
the camera that generates the captured image.

6. An electronic device comprising:
a storage that stores map information;
an acquisition part that acquires a speed limit indicated by a sign included in a captured image generated by a camera included in a vehicle and a position of the vehicle; and
a display control part that causes a display part to display the speed limit indicated by the sign included in the captured image,
wherein the display control part does not cause the display part to display a speed limit which is acquired by the acquisition part while a distance between the vehicle and a branch point is less than a threshold value,
wherein the threshold value is a distance at which a sign indicating a speed limit of the branch road can be extracted from a captured image generated by the camera of the vehicle, or a distance at which the speed limit of the branch road can be identified from the sign included in the captured image, and
wherein the display control part determines that the vehicle has entered the branch road when identifying that a type of lane in which the vehicle travels before passing through the branch point and a type of lane in which the vehicle travels after passing through the branch point are different, by referencing a plurality of lane positions included in the map information stored in the storage and a type of lane corresponding to each of the plurality of lane positions, and causes the display part to display the speed limit which is acquired by the acquisition part while the vehicle is traveling at a position at which the distance is less than the threshold value.

7. A vehicle comprising:
the electronic device according to claim 6 ; and
the camera that generates the captured image.

8. An electronic device comprising:
a storage that stores map information;
an acquisition part that acquires a speed limit indicated by a sign included in a captured image generated by a camera included in a vehicle and a position of the vehicle; and
a display control part that causes a display part to display the speed limit indicated by the sign included in the captured image,
wherein the display control part does not cause the display part to display a speed limit which is acquired by the acquisition part while a distance between the vehicle and a branch point is less than a threshold value, and
wherein the display control part causes the display part to display the speed limit which is acquired by the acquisition part while the vehicle is traveling at a position at which the distance is less than the threshold value, on condition that a turn signal of the vehicle is operating when the vehicle is traveling at the position at which the distance is less than the threshold value.

9. The electronic device according to claim 8 , wherein
the display control part causes the display part to display the speed limit which is acquired by the acquisition part while the vehicle is traveling at the position at which the distance is less than the threshold value since a timing at which the vehicle is traveling at a position before the branch point in the traveling direction of the vehicle in a case where the turn signal is operating when the vehicle is traveling at the position at which the distance is less than the threshold value.

10. A vehicle comprising:
the electronic device according to claim 8 ; and
the camera that generates the captured image.

11. A display control method executed by a processor and comprising:
storing map information in a storage;
acquiring a speed limit indicated by a sign included in a captured image generated by a camera included in a vehicle and a position of the vehicle; and
causing a display part to display the speed limit indicated by the sign included in the captured image,
wherein the map information includes a plurality of lane positions and a type of lane corresponding to each of the plurality of lane positions,
wherein the causing to display includes not causing the display part to display a speed limit which is acquired while a distance between the vehicle and a branch point is less than a threshold value, and
wherein the causing to display includes causing the display part to display the speed limit which is acquired while the vehicle is traveling at a position at which the distance is less than the threshold value, on condition that a type of lane in which the vehicle travels before passing through the branch point is different from a type of lane in which the vehicle travels after passing through the branch point.

12. A storage medium that stores a program for causing a processor to execute:
storing map information in a storage;
acquiring a speed limit indicated by a sign included in a captured image generated by a camera included in a vehicle and a position of the vehicle; and
causing a display part to display the speed limit indicated by the sign included in the captured image,
wherein the map information includes a plurality of lane positions and a type of lane corresponding

Assignees

• Isuzu Motors Ltd

Inventors

• Kawano Takashi

Classifications

• B60W2420/403

  Image sensing, e.g. optical camera · CPC title

• B60W2552/53

  Road markings, e.g. lane marker or crosswalk · CPC title

• B60W2555/60

  Traffic rules, e.g. speed limits or right of way · CPC title

• B60W2554/802

  Longitudinal distance · CPC title

• B60W2554/20

  Static objects · CPC title