Back to results
US 7,548,827 B2Granted
Magnetic data processing apparatus, method and machine readable medium
AssigneeYamaha Corporation
InventorIbuki Handa
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeYamaha Corporation
InventorIbuki Handa
Estimating the term…
A magnetic data processing apparatus having a first generation part that stores samples of the magnetic data in accordance with a first sampling rule, and generates first offset update data based on the stored samples of the magnetic data when a distribution of the stored samples of the magnetic data indicates a first feature. A second generation part stores samples of the magnetic data in accordance with a second sampling rule, and generates second offset update data based on the stored samples of the magnetic data when a distribution of the stored samples of the magnetic data indicates a second feature. An update part updates an offset value of the magnetic data based on the first offset update data when the same is generated, and updates the offset value of the magnetic data based on the second offset update data when the same is generated.
An apparatus for processing magnetic data to update an offset value of the magnetic data, the apparatus comprising:
A method of processing magnetic data to update an offset value of the magnetic data, the method comprising:
A machine readable medium for use in a computer, the medium containing program instructions executable by the computer to perform processing of magnetic data to update an offset value thereof, wherein the processing comprises:
Dependencies are inferred from the claim text.
From the US filing history. Foreign family members aren’t listed.
Drawings are temporarily unavailable. Open the PDF at USPTO
Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes: testing, calibrating, or compensating of compasses
Measuring distances, levels or bearings
About 1 year 8 months of term left · ends 20 Jun 2028 (estimated)
1. Technical Field
The present invention relates to a magnetic data processing apparatus, a magnetic data processing method and a machine readable medium containing a magnetic data processing program. More particularly, the present invention relates to a technology for updating an offset value of magnetic data outputted from a magnetic sensor.
2. Related Art
FIG. 1 is a block diagram showing a magnetic data processing apparatus according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing operation of the magnetic data processing apparatus according to the embodiment of the present invention.
FIG. 3 is another explanatory diagram showing operation of the magnetic data processing apparatus according to the embodiment of the present invention.
Embodiments of the present invention will hereinafter be described with reference to the accompanying drawings in the following order. It is to be noted that corresponding constituting elements in the drawings are denoted with the same reference numerals, and redundant description is, therefore, omitted.
1. Hardware constitution of magnetic data processing apparatus
2. Software constitution of magnetic data processing apparatus