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US 6,640,454 B2Granted
Electronic instrument having a magnetic sensor
AssigneeSeiko Instruments Inc.
InventorsKazuo Kato, Shoji Nirasawa
Life of this patent
Estimating the term…
Abstract
Arranging a magnetic sensor in a position within 2−1/2 of the radius from the center of a component in a circular shape assuming magnetism, and correcting deflection by deflection amount correcting circuit of an output from the magnetic sensor in accordance with the relative position between the magnetic sensor and the component.
Claims8
An electronic instrument having a magnetic sensor, comprising:
- a circular or substantially circular component that is susceptible to magnetization;
- a magnetic sensor located within a magnetic field generated by the circular or substantially circular component for outputting a signal corresponding to a direction of an incident magnetic field and being disposed at a distance no further than approximately 2−1/2 of the radius from the center of the circular or substantially circular component;
- and
- a correcting circuit for correcting the signal output from the magnetic sensor in accordance with the relative position between the component and the magnetic sensor.
1 more element
An electronic instrument having a magnetic sensor comprising:
- a circular or substantially circular component assuming magnetism in the vicinity of its circumference by processing;
- a magnetic sensor located within a magnetic field generated by the circular or substantially circular component for outputting a signal corresponding to a direction of an incident magnetic field and being disposed within the vicinity of the circumference assuming magnetism of the circular or substantially circular component;
- and
- a correcting circuit for correcting the signal output by the magnetic sensor in accordance with the relative position between the component and the magnetic sensor.
1 more element
Dependencies are inferred from the claim text.