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| Number | Title | Issue Date |
| 7411382 | Current detection apparatus A current detection apparatus includes a magnetic core having a ring shape with a gap and a center opening portion through which a current path is disposed, and a magnetic sensor including a magnetic sensing element such as a Hall effect element arranged in the gap.... | 08/12/2008 |
| 7366619 | Signal-processing unit for fluxgate magnetometers A signal processing unit includes an integrating unit. The integrating unit is composed of a plurality of digital elements and is operative to integrate a detection signal over every quarter of one cycle of the detection signal to generate an integration value. The ... | 04/29/2008 |
