Pixart Imaging Incorporated

Tse-Chung Su

Ren-Hau Gu

Tzung-Min Su

Ming-Hung Tsai

Ming-Tsan Kao

Chi-Chieh Liao

Hsin-Chia Chen

Yu-Han Chen

Han-Shu Lin

Xiao-lin Chuang

Sung-han Wu

An input method and a controller of a touch keyboard are provided. The input method includes: detecting a touch behavior performed on the touch keyboard, and identifying the touch behavior to determine whether to output mouse event data, keyboard event data or a combination of mouse event data and keyboard event data.

Input method and controller of touch keyboard

An electronic device with a function of detecting a touch state, comprising: at least one first electrode, configured to generate a first capacitance reflecting a distance between the first electrode and an object; at least one second electrode, configured to generate a second capacitance reflecting a distance between the second electrode and the object, and wherein a first distance between the first electrode and the object is smaller than a second distance between the second electrode and the object when the electronic is in a wearing state; a capacitance calculating circuit, configured to calculate the first capacitance and the second capacitance; and a processing circuit, configured to determine if the electronic device is in the wearing state based on a capacitance difference between the first capacitance and the second capacitance. Via such structure, the touch state of the electronic device can be precisely acquired.

Electronic device which can detect touch state

An electronic device which can detect a touch state, comprising: a front surface for showing images; at least one first electrode, provided in a first region; at least one second electrode, provided in a second region, wherein a distance between the first region and the front surface is larger than a distance between the second region and the front surface; a capacitance calculating circuit, configured to calculate at least one first capacitance generated by the first electrode and coupled to the second electrode to calculate at least one second capacitance generated by the second electrode, wherein the capacitance calculating circuit further calculates a capacitance difference between the first capacitance and the second capacitance; and a processing circuit, configured to determine the touch state according to the capacitance difference. Via such structure, the touch state of the electronic device can be precisely acquired.

A wearable electronic device which can detect a wearing state, comprising: at least one first electrode, provided in a first region of the wearable electronic device; at least one second electrode, provided in a second region of the wearable electronic device; a capacitance calculating circuit, configured to calculate first capacitances generated by the first electrode and configured to calculate second capacitances generated by the second electrode, wherein the capacitance calculating circuit further calculates a capacitance difference between the first capacitance and the second capacitance; and a processing circuit, configured to determine the wearing state according to the capacitance difference. Via such structure, a wearing state, a wearing location, a wearing angle of the electronic device can be automatically detected, thus the problem caused by an improper wearing manner can be improved.

Electronic device capable of detecting wearing state or touching state

An object navigation device comprising: at least one touch sensing surface; a control circuit, for setting a direction of the object navigation device according to a touch sensing condition. The touch sensing condition comprises at least one of following conditions: a number of touch regions, at least one relative position of touch regions, shapes of touch regions, tilting angle of at least one object touching the touch sensing surface. A corresponding object navigation method is also disclosed. By this way, the direction of the object navigation device can be automatically set according to the touch sensed by the object navigation device.

Object navigation device and object navigation method

A method of determining an adaptive DPI curve includes the steps of: detecting, by a sensing element, an object on a touch surface and outputting a detected frame; calculating, by a processing unit, a contact range according to the detected frame; and determining a DPI curve according to the contact range.

Method of determining adaptive DPI curve

A handheld device including: a body with an operating surface; a touch sensor for sensing a touch on the operating surface to output a touch signal; a displacement sensor configured with the body for sensing a displacement of the body to output a displacement signal; and a processor receiving the touch signal to respectively generate a control command and disable the touch signal for a first time duration when the displacement signal is larger than a moving threshold.

Handheld device and control method thereof

A lane identification method for identifying a lane whereon a vehicle is traveling, which includes: providing a drive video; generating an identification result of recognizing a plurality of lane lines corresponding to the line according the drive video, wherein the identification result is generated based on inside borderlines of the lane lines; and determining the lane according to the identification result.

Lane identification method and related apparatus thereof

The present invention provides a lane departure warning system including an image sensing device, an identification module and a determination module. The image sensing device generates a video. The identification module identifies a plurality of lane lines of at least one lane on which a vehicle is currently driven from the video, to generate an identification result, wherein the identification result is generated based on specific borderlines of the lane lines. The determination module determines a determination strategy according to vehicle speed information, and generates a determination result according to the determination strategy and the identification result. The lane departure warning system determines whether to issue a warning according to the determination result.

Lane departure warning system, lane identification apparatus and related method thereof

A multipoint positioning method for a touchpad including the steps of: scanning a touchpad to retrieve two-dimensional data; calculating an object area and a number of maxima of local maxima in the two-dimensional data; comparing the object area with an area threshold when the number of maxima is larger than 1; and identifying positions of the local maxima as a plurality of contact positions when the object area is larger than or equal to the area threshold.

Growing community of inventors

Hsin-Chu, Taiwan

Tse-Chung Su