发明名称 |
HARDWARE DE-CONVOLUTION BLOCK FOR MULTI-PHASE SCANNING |
摘要 |
Apparatuses and methods of hardware de-convolution for multi-phase scanning of a touch arrays are described. One apparatus includes a memory device configured to store a capacitance map including convolved capacitance data. The convolved data are results of multi-phase transmit (TX) scanning of a sense array with multiple TX patterns. The apparatus further comprises a de-convolution circuit block coupled to the memory device. The de-convolution circuit block is configured to de-convolve the convolved capacitance data with inverses of the multiple TX patterns to obtain capacitance data for a de-convolved capacitance map. |
申请公布号 |
US2014316729(A1) |
申请公布日期 |
2014.10.23 |
申请号 |
US201314024299 |
申请日期 |
2013.09.11 |
申请人 |
Cypress Semiconductor Corporation |
发明人 |
Kremin Viktor;Bihday Volodymyr;Waerdt Jan-Willem;O'Keeffe Colm;Hogan Aaron;Kelleher Paul |
分类号 |
G01R27/26 |
主分类号 |
G01R27/26 |
代理机构 |
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代理人 |
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主权项 |
1. A processing device comprising:
a memory device configured to store a capacitance map comprising convolved capacitance data, wherein the convolved data is a result of multi-phase transmit (TX) scanning of a sense array with a plurality of TX patterns, the scanning of the sense array with each of the plurality of TX patterns including simultaneously driving different phases of a signal on the sense array; and a de-convolution circuit block coupled to the memory device, wherein the de-convolution circuit block is configured to de-convolve the convolved capacitance data with inverses of the plurality of TX patterns to obtain capacitance data for a de-convolved capacitance map. |
地址 |
San Jose CA US |