Mobile bearing calculation device and bearing correction method

A technology of orientation display and orientation information, which is applied to measuring devices, surveying and navigation, compass and other directions, and can solve problems such as difficulty in realizing map display for users and lack of equipment for measuring orientation in mobile cellular phones

Inactive Publication Date: 2007-05-02
KYOCERA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Initially, mobile cellular phones equipped with a map information display processing function lacked a device for measuring azimuth, so it was difficult to realize a map display that is easy for users to understand, such as a heading up display (displaying a rotating map, so that the forward direction points to the top of the screen)

Method used

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  • Mobile bearing calculation device and bearing correction method
  • Mobile bearing calculation device and bearing correction method
  • Mobile bearing calculation device and bearing correction method

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Embodiment Construction

[0057] The application of the present invention to a multifunctional mobile, portable cellular phone (hereinafter referred to as a "mobile cellular phone") that has a map information display processing function and an image capture function and can display map information in consideration of orientation will be explained with reference to the accompanying drawings.的实施例。 Example.

[0058] FIG. 1 is a block diagram showing a configuration example of a system for acquiring geographic location and map information in a cellular phone 100 according to an embodiment of the present invention.

[0059] The cellular phone 100 receives GPS signals transmitted from three or more GPS satellites 200 orbiting the earth on a known orbit. Then, the cellular phone 100 transmits information about the received GPS signal from the base station 300 to the GPS server system 401 (as an example of the location discovery device of the present invention) through the communication network, and acquires the l...

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Abstract

A bearing display device having a terrestrial magnetism sensor measuring terrestrial magnetism, a display section, and a control section for calculating a geographical bearing based on the value measured by the terrestrial magnetism sensor and causing information on the calculated bearing to be displayed on the display section. The control section monitors variation in behavior of an electronic component mounted on the bearing display device and causes the information on the bearing displayed on the display section to be updated depending on the behavior variation.

Description

Technical field [0001] The present invention relates to a mobile communication device (such as a mobile phone) equipped with a geomagnetic sensor for measuring geographic position, and a method for calibrating the geomagnetic sensor. Background technique [0002] Generally, a device is needed to confirm the geographic location of the current location and provide a route to the target location through a map. As a device that meets this demand, car navigation systems are known (for example, Patent Document 1, Patent Document 2, and Patent Document 3). [0003] Generally speaking, car navigation systems calculate the geographic location of the current location by receiving and processing signals sent from multiple GPS (Global Positioning System) satellites (hereinafter referred to as "GPS signals"), from the storage unit (DVD) in the system. , Hard disk, etc.) read out the map data about the current location environment from the database stored in the database, and display it on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C17/32G01C21/00G08G1/005G09B29/00
Inventor 桶屋成生
Owner KYOCERA CORP
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