公开(公告)号：US11604533B2

公开(公告)日：2023-03-14

申请号：US17142411

申请日：2021-01-06

Applicant: ALPS ALPINE CO., LTD.

Inventor： Tetsuo Muranaka ,  Naoyuki Hatano ,  Hiroshi Izumi ,  Koichi Miura ,  Yasuji Hagiwara

IPC: G06F3/041 ,  G06F3/044

Abstract: There is provided a sensor unit for detecting a proximity state of an object at N detection positions, generating a composite detection signal in conformity with the sum of N detection signals obtained as a result of detection for N detection positions, and controlling a positive or negative polarity of the detection signal having a signal level in conformity with the proximity state at each of N detection positions, a sensor control unit for controlling the sensor unit for generating M composite detection signals having N polarity patterns set at N detection signals different from each other, and a signal regeneration unit for regenerating the signal level of the N detection signal based on the M composite detection signals generated by the sensor unit.

公开(公告)号：US10775922B2

公开(公告)日：2020-09-15

申请号：US16256053

申请日：2019-01-24

Applicant: ALPS ALPINE CO., LTD.

Inventor： Naoyuki Hatano ,  Hiroshi Izumi ,  Masafumi Takagi

IPC: G06F3/041 ,  G06F3/044

Abstract: There is provision of an input device for calculating loads applied to multiple pressed points respectively, by executing one or more calculation loops in a load calculation unit. The calculation loop includes calculating computation values representing loads detected at load sensors based on initial pressed point loads, calculating a comparison value based on a comparison of the computation value with a detection value detected by the load sensor, calculating an adjustment value for adjusting the initial pressed point load based on the comparison values and pressed positions, and calculating the pressed point loads by adjusting the initial pressed point load based on the adjustment value. The load calculation unit uses the pressed point load calculated in the calculation loop for each of the pressed positions as an initial pressed point load in the next calculation loop.