Kabushiki Kaisha Tokai Rika Denki Seisakusho

Smk Corporation

Toyota Jidosha Kabushiki Kaisha

Yuji Takai

Takao Imai

Osamu Yoshikawa

Naoki Kamiya

Hiroshi Shikata

Toru Ueno

Keiji Murase

Hiroki Noritake

A rotation detecting device includes a rotation operation part configured to be rotationally operated, a first detector configured to detect a rotation of the rotation operation part and output a first rotation detection signal, a second detector configured to output a second rotation detection signal, with a predetermined phase difference with respect to the first rotation detection signal, a third detector configured to output a third rotation detection signal, with each of a predetermined phase difference with respect to the first rotation detection signal of the first detector and a phase difference with respect to the second rotation detection signal of the second detector, and a controller configured to, based on the first rotation detection signal, the second rotation detection signal, and the third rotation detection signal, perform detection of a failure of the first detector, the second detector, or the third detector.

Rotation detecting device

A controller of a touch-type input device updates baselines when capacitances of capacitors of a touch panel all remain within a predetermined capacitance range over a predetermined period.

Touch-type input device

A touch-type input device includes a touch panel in which drive electrodes and sensor electrodes are arranged in a grid pattern that provide capacitors. The touch-type input device also includes a controller that determines whether or not there is a touch based on data values that each indicate an amount of change in capacitance of each capacitor from a predetermined reference value. The controller sets the reference value by obtaining a parasitic capacitance of each capacitor when the touch-type input device is activated. When determining from a variation range of the parasitic capacitances of the capacitors that an erroneous reference value has been obtained, the controller re-obtains a parasitic capacitance.

A touch-type input device includes a touch panel including drive electrodes and sensor electrodes. Capacitors are formed at intersections of the drive electrodes and sensor electrodes. A controller determines whether a conductive foreign matter exists on the touch panel from raw data values indicating changes in the capacitances of the capacitors from initial reference values. The controller determines touching of the touch panel from control data values indicating changes in the capacitances of the capacitors from control reference values changed when a conductive foreign matter exists. When the raw data values indicate existence of a conductive foreign matter, the controller sets the control reference value of each capacitor to a raw data reference value corresponding to the present raw data value. The controller updates the initial reference value when the touch-type input device is activated and updates the control reference value when the control reference value is erroneous.

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Aichi, Japan

Yuji Takai