Mobile bearing calculator and bearing correction method
First Claim
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1. A mobile bearing calculator comprising:
- a geomagnetic sensor for detecting earth-magnetism anda control unit for calculating the geographical bearing based on detection values of the geomagnetic sensor; and
an electronic part mounted at the mobile bearing calculator, wherein a change of an operation state of the electronic part changes an earth-magnetism detection value of the geomagnetic sensor,the control unit monitors for an event whereby an operation state of the electronic part changes, or a change of the operation state occurs,and corrects the geographical bearing in accordance with occurrence of the event of the change of the operation state.
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Abstract
A mobile bearing calculator having a geomagnetic sensor for detecting earth-magnetism and a control unit for calculating a geographical bearing based on detection values of the geomagnetic sensor. The control unit monitors for an event such as a change of operation of electronic parts mounted on the mobile bearing calculator and corrects the geographical bearing in accordance with the occurrence of the event.
12 Citations
13 Claims
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1. A mobile bearing calculator comprising:
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a geomagnetic sensor for detecting earth-magnetism and a control unit for calculating the geographical bearing based on detection values of the geomagnetic sensor; and an electronic part mounted at the mobile bearing calculator, wherein a change of an operation state of the electronic part changes an earth-magnetism detection value of the geomagnetic sensor, the control unit monitors for an event whereby an operation state of the electronic part changes, or a change of the operation state occurs, and corrects the geographical bearing in accordance with occurrence of the event of the change of the operation state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A bearing correction method in a mobile bearing calculator having an electronic part and a geomagnetic sensor for detecting earth-magnetism and calculating a geographical bearing based on detection values of said geomagnetic sensor said method, comprising
a step of monitoring for an event whereby an operation state of the electronic part changes or a change of the operation state occurs, and a step of correcting the geographical bearing in accordance with the occurrence of the event or the change of the operation state.
Specification