# US 2021/0239488 A1 · Display control device, display control system, and display control method

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- Number: US 2021/0239488 A1
- Document ID: US20210239488A1
- Status: Published application
- Kind: A1
- Application number: 17/052,033
- Filed: 2018-05-24
- Published: 2021-08-05
- Earliest claimed: 2018-05-24
- Assignees: Mitsubishi Electric Corporation
- Applicants: Mitsubishi Electric Corporation
- Inventors: Takeshi YAMAMOTO
- Web page: https://patentgrep.com/patent/US20210239488A1

## CPC

- G01C 21/3641: {Personalized guidance, e.g. limited guidance on previously travelled routes}
- G01C 21/3679: {Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities (G01C21/3611 takes precedence)}
- G01C 21/3697: {Output of additional, non-guidance related information, e.g. low fuel level (G01C21/3679 takes precedence)}
- G06F 21/6245: {Protecting personal data, e.g. for financial or medical purposes}
- G06F 21/84: output devices, e.g. displays or monitors
- G06Q 50/00: Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism (healthcare informatics G16H)
- G08G 1/00: Traffic control systems for road vehicles (arrangement of road signs or traffic signals E01F9/00 {; automatic vehicle control B62D})
- 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)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- 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

It is an object of the present invention to set concealment targets suited to a user, as to a display of a display device mounted on a vehicle, without requiring user's time and effort. A navigation device includes a communication unit for receiving a classification criterion in accordance with an attribute of a user, from a server, a classification unit for classifying the display information into the confidential information and the non-confidential information on the basis of the classification criterion received by the communication unit, and a display control unit for performing a display control of a display device so that the confidential information and the non-confidential information should be displayed in a first display mode and the confidential information should not be displayed and the non-confidential information should be displayed in a second display mode.

## Claims

### Claim 1

A display control device for performing a display control of a display device mounted on a vehicle, comprising:
a processor to execute a program; and
a memory to store the program which, when executed by the processor, performs processes of
receiving a classification criterion used for classifying display information of the display device into confidential information and non-confidential information, in accordance with an attribute of a user, from a server in which the classification criterion is managed for each attribute of the user;
classifying the display information into the confidential information and the non-confidential information on the basis of the received classification criterion; and
performing a display control of the display device so that the confidential information and the non-confidential information are displayed in a first display mode and the confidential information is not displayed and the non-confidential information is displayed in a second display mode.

### Claim 2 (depends on 1)

The display control device according to claim 1, wherein
the program, when executed by the processor, further performs processes of updating classification of the display information in accordance with an operation of the user.

### Claim 3 (depends on 1)

The display control device according to claim 1, wherein
the attribute of the user includes at least age or gender.

### Claim 4

A display control system, comprising:
a plurality of display control devices each for controlling a display of a display device mounted on a vehicle; and
a server for managing a classification criterion used for classifying display information which is information to be displayed on the display device into confidential information and non-confidential information, for each attribute of a user,
wherein each of the plurality of display control devices comprises:
a processor to execute a program; and
a memory to store the program which, when executed by the processor, performs processes of
receiving the classification criterion in accordance with an attribute of a user from the server;
classifying the display information into the confidential information and the non-confidential information on the basis of the received classification criterion;
transmitting a classification status of the display information and attribute information indicating the attribute of the user to the server; and
performing a display control of the display device so that the confidential information and the non-confidential information are displayed in a first display mode and the confidential information is not displayed and the non-confidential information is displayed in a second display mode, and
the server updates the classification criterion for each attribute of the user on the basis of the classification status and the attribute information which are acquired from the plurality of display control devices.

### Claim 5

A display control method of a display device mounted on a vehicle, which is performed by a server and a display control device, comprising:
managing a classification criterion used for classifying display information of the display device into confidential information and non-confidential information, for each attribute of a user, by the server;
receiving the classification criterion in accordance with the attribute of the user from the server, by the display control device;
classifying the display information into the confidential information and the non-confidential information on the basis of the received classification criterion, by the display control device;
performing a display control of the display device so that the confidential information and the non-confidential information are displayed in a first display mode and the confidential information is not displayed and the non-confidential information is displayed in a second display mode, by the display control device;
transmitting a classification status of the display information and attribute information indicating the attribute of the user to the server, by the display control device; and
updating the classification criterion for each attribute of the user on the basis of the classification status and the attribute information, by the server.