公开(公告)号：US10671230B2

公开(公告)日：2020-06-02

申请号：US16535368

申请日：2019-08-08

Applicant: ALPS ALPINE CO., LTD.

Inventor： Masafumi Takagi ,  Naoyuki Hatano ,  Kazuhito Oshita

IPC: G06F3/044 ,  G01D5/24

Abstract: An input device for detecting a change in capacitance in accordance with proximity of an object is provided. The input device includes: a sensor unit including multiple capacitive coupling parts formed between multiple driving electrodes and multiple sensing electrodes; a capacitance detector for detecting a capacitance value of each of the capacitive coupling parts; and a two-dimensional data generating unit for generating a two-dimensional data matrix consisting of the capacitance values of the capacitive coupling parts. When a target row or a target column in the two-dimensional data matrix matches a first pattern indicating that multiple capacitive coupling parts each having a capacitance value greater than a reference value are arranged consecutively, the input device updates the reference value.

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.

公开(公告)号：US10802650B2

公开(公告)日：2020-10-13

申请号：US16504489

申请日：2019-07-08

Applicant: ALPS ALPINE CO., LTD.

Inventor： Naoyuki Hatano ,  Shinya Abe ,  Masafumi Takagi

IPC: G06F3/0354 ,  G06F3/044 ,  G06F3/041

Abstract: A coordinate input device includes an operation detecting unit for detecting an input operation performed by an operation body and a calculation unit for computing a calculation result from the input operation, wherein, in a case where the input operation detected by the operation detecting unit continues for a predetermined time, the calculation unit acquires a first position coordinate at a first time and a second position coordinate at a second time is detected after the first time, calculates an input vector from the first position and directed toward the second position, calculates a movable distance between an end and another end of the operation detecting unit on a line connecting the first position and the second position, and computing an output vector by increasing a correction value for correcting a value of the input vector so that the shorter the movable distance, the larger the correction value is.