Denso Corporation

Hidetaka Tanaka

Ichiro Yoshida

Motoki Kanamori

Kiyohiko Sawada

Kiyohito Narita

Shingo Takeda

A touch detection apparatus that detects a touch to a capacitive touch sensor is provided. The touch detection apparatus includes: a capacitive dummy sensor that is disposed to an operation portion; a capacitance detector that detects values of capacitances of the touch sensor and the dummy sensor; and a touch determination portion that determines whether the touch sensor is touched and that disables determination. Multiple dummy sensors are disposed corresponding to multiple touch sensors. The touch determination portion disables the determination of whether the touch sensor disposed in a vicinity of the one of the dummy sensors is touched.

Touch detection apparatus and vehicle navigation apparatus

A data processing device includes: a first controller requiring a first activation time; a second controller requiring a second activation time, which is shorter than the first activation time; and a data processor for switching a mode, in which data is processed, between a first processing mode without collaboration with the first controller, and a second processing mode in collaboration with the first controller. The data processor processes data in the first processing mode after completing the activation of the second controller and before completing the activation of the first controller; processes data in the second processing mode after completing the activation of the first controller; and processes data in the first processing mode after a fault occurs in the first controller.

Data processing device

A touch detection device includes: an electrostatic capacitance detection device of each touch sensor; and a touch detection device to each touch sensor. The touch determination device obtains a maximum electrostatic capacitance, a minimum electrostatic capacitance and an intermediate electrostatic capacitance, and determines that the touch operation with respect to the touch sensor having the maximum change amount is performed when both of a first condition that a difference between the maximum electrostatic capacitance and the intermediate electrostatic capacitance exceed a second determination value and a second condition that a difference between the intermediate electrostatic capacitance and the minimum electrostatic capacitance is smaller than a third determination value are satisfied, and determines that a change of the electrostatic capacitance is caused by a noise when at least one of the first condition and the second condition is not satisfied.

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Kariya, Japan

Hidetaka Tanaka