| 主权项 |
1. A magnetic field sensor system, comprising:
a plurality of sensor elements having a first terminal and a second terminal on a complementary metal oxide semiconductor substrate; a first plurality of switches configured to selectively connect the first terminal to a power source and to selectively connect the first terminal to a readout circuit; and a second plurality of switches configured to selectively connect the second terminal to the power source and to selectively connect the second terminal to the readout circuit, characterized in that the magnetic field sensor system further includes: a memory including command instructions for (i) individually establishing a first state condition for each of the plurality of sensor elements by connecting the first terminal to the power source and connecting the second terminal to the readout circuit for each of the plurality of sensor elements, (ii) generating, with each of the plurality of sensor elements, a first state condition signal, (iii) storing, for each of the plurality of sensor elements, a first data associated with the generated first state condition signal, (iv) individually establishing a second state condition for each of the plurality of sensor elements by connecting the first terminal to the readout circuit and connecting the second terminal to the power source for each of the plurality of sensor elements, (v) generating, with each of the plurality of sensor elements, a second state condition signal, (vi) storing, for each of the plurality of sensor elements, a second data associated with the generated second state condition signal, (vii) calculating, for each of the plurality of sensor elements, a calculated offset using the stored first data and the stored second data, (viii) calculating a smoothed offset for at least one of the plurality of sensor elements based upon the calculated offsets, (ix) excluding from the smoothed offset calculation a calculated offset that is not within a predetermined range of offsets, the predetermined range of offsets based upon the calculated offsets for each of the plurality of sensor elements, and (x) generating a magnetic field sensor system signal based upon calculated offsets which are not excluded; and a processor for executing the command instructions. |
