| 摘要 |
本发明在A方面有关于一种用于确定输入装置(10)的主动输入元件(S1a、S2b)的方法，包括：;提供根据矩阵装置而被连接的输入元件(S1a至S2b)，;在矩阵装置内提供至少二驱动线(L1, L2)，其每一者连接至各自的驱动电路(2, 4)，;在矩阵装置内提供可被使用以侦测主动输入元件(S1a, S2a)的至少二感测线(Ca, Cb)，;在矩阵装置内提供串联连接(SC1至SC4)，其每一者包括输入元件其中之一(S1a)及电阻器(R1a)，而且每一串联连接(SC1至SC4)被连接至各自一个驱动线(L1, L2)以及被连接至各自一个感测线(Ca, Cb)，;提供上拉电阻器(Ra, Rb)，其连接感测线(Ca, Cb)到第一电位，以及;使用用于驱动电路(2, 4)的控制装置，其驱动主动驱动线(L1)到不同于第一电位的第二电位，且驱动一非主动驱动线(L2)或多个非主动驱动线到第一电位或到具有距离第一电位绝对偏移值的电位，绝对偏移值为第一电位及第二电位的差的绝对值的至多50％或至多10％。;- providing input elements (S1a to S2b) that are connected according to a matrix arrangement,;- providing within the matrix arrangement at least two drive lines (L1, L2) that are each connected to a respective driving circuit (2, 4),;- providing within the matrix arrangement at least two sense lines (Ca, Cb) that may be used to detect active input elements (S1a, S2a),;- providing within the matrix arrangement serial connections (SC1 to SC4) each comprising one of the input elements (S1a) and a resistor (R1a) and each serial connection (SC1 to SC4) being connected to a respective one of the drive lines (L1, L2) and to a respective one of the sense lines (Ca, Cb),;- providing pull resistors (Ra, Rb) that connect the sense lines (Ca, Cb) to a first potential , and;- using a control device for the driving circuits that drives an active drive line (L1) to a second potential that is different from the first potential and that drives a non active drive line (L2) or non active drive lines to the first potential or to a potential having an absolute offset value from the first potential that is at most 50 percent or at most 10 percent of the absolute value of the difference of the first potential and of the second potential. |
