US Patent 7155836 Method and apparatus for using magnetic field
Patent 7155836 was granted and assigned to Samsung on January, 2007 by the United States Patent and Trademark Office.
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Patent abstract
Provided a method and apparatus for using a magnetic field. The method includes: measuring and storing magnetic field data indicating magnitudes of a magnetic field in different directions at each time by rotating sensors over a space; and checking whether a disturbance of the magnetic field exists, using curve fitting parameters such as amplitude and offset of at least one of magnetic field trajectories formed by the stored magnetic field data.
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Current Assignee
Patent Jurisdiction
Patent Number
71558360
Date of Patent
January 2, 2007
0Patent Application Number
109519130
Date Filed
September 29, 2004
0Patent Primary Examiner
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US Patent 07155836 Method and apparatus for using magnetic field US Patent 7155836 Method and apparatus for using magnetic field
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Patent Number
0715583600
Patent Number
715583600
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
071558360
Date of Patent
January 2, 2007
0Patent Application Number
109519130
Date Filed
September 29, 2004
0Official Website
Patent Primary Examiner
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
071558360
Date of Patent
January 2, 2007
0Patent Application Number
109519130
Date Filed
September 29, 2004
0Official Website
Patent Primary Examiner
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US Patent 07155836 Method and apparatus for using magnetic field
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07155836
Date of patent
January 2, 2007
Patent application number
10951913
Date Filed
September 29, 2004
Patent primary examiner
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