Display device with stepwise display scale control, stepwise control method of the display scale on a display device, and computer program for stepwise control of the display scale of a display device

Patent metadata

Field	Value
Publication number	US-8942833-B2
Application number	US-201113292631-A
Country	US
Kind code	B2
Filing date	Nov 9, 2011
Priority date	Nov 23, 2010
Publication date	Jan 27, 2015
Grant date	Jan 27, 2015

Abstract

Control devices, methods, and programs set a final control value by smoothly shifting from the control value to a final control value. The devices, methods, and programs specify an operation amount of a user operation with respect to a prescribed control value, and access a pre-change control value that is a value of the control value before a completed change. Based on the accessed pre-change control value and the specified operation amount of the user operation, devices, methods, and programs set a final control value by changing the control value in a stepwise manner from the pre-change control value to the final control value within a prescribed control value range.

First claim

What is claimed is:

1. A control device, comprising:
a memory that stores:
a pre-change scale; and
a computer-executable scale change program;

a display device that displays a map; and
a processor that, when executing the stored scale change program:
specifies an operation amount of a user operation that changes a scale of the displayed map;
accesses the stored pre-change scale that is a scale of the displayed map before the user operation; and
based on the accessed…

Assignees

• Nagasaka Hidenori
• Aisin Aw Co

Inventors

• Nagasaka Hidenori

Classifications

• G01C21/3664 Primary

  Physics · mapped topic