Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A force sensing processing method of a touchpad is provided. The comparison values obtained by subtracting the force induction quantities of different frames are used to determine whether the achievement conditions are met. If it is met, a processing step is executed to respond the event to be triggered by the changing trend of the user's force. When the force changes rapidly and the force sensing amount cannot be quickly returned to the originally set trigger threshold value, the force changing trend detected by the comparison values are be used to provide the processing steps in real time, so as to improve the user experience.

Abstract: A touchpad and its force-sensing data correction method are provided. The touchpad has a force-sensing layer and a touch-sensing layer. The force-sensing layer has multiple force-sensing points. The touch-sensing layer has multiple touch-sensing points. One force-sensing point corresponds to n touch-sensing points. The force-sensing information received by the force-sensing layer is adjusted by using the touch-sensing information received by the touch-sensing layer, so that the resolution of the adjusted force-sensing information is higher than the resolution of the original received force-sensing information. In this way, the purpose of calibrating the force-sensing information is achieved, so as to improve the accuracy of determining the force applied by the object during the operation of the touchpad.

Abstract: A touchpad and its force-sensing data correction method are provided. The touchpad has a force-sensing layer and a touch-sensing layer. The force-sensing layer has multiple force-sensing points. The touch-sensing layer has multiple touch-sensing points. One force-sensing point corresponds to n touch-sensing points. The force-sensing information received by the force-sensing layer is adjusted by using the touch-sensing information received by the touch-sensing layer, so that the resolution of the adjusted force-sensing information is higher than the resolution of the original received force-sensing information. In this way, the purpose of calibrating the force-sensing information is achieved, so as to improve the accuracy of determining the force applied by the object during the operation of the touchpad.

Abstract: A control system applicable to a touch device is provided. The touch device includes a touch sensor. The control system comprises a sensing circuit, configured to sense the touch sensor and generate a plurality of sensing values; a processor, configured to generate a sensing image according to the plurality of sensing values; and a convolutional neural network, configured to process the sensing image to generate feature information and generate identification information according to the feature information for determining a status of the touch sensor.

Abstract: A method for determining a force of a touch object on a touch device and for determining its related touch event is provided. The touch object touched on the touch device is clustered into different object groups. Thus, multiple touch objects are simply grouped into two object groups to easily calculate the pressing force that is provided for determining follow-up touch event.

Abstract: A touch device and an operation method thereof is provided. By determining whether the operating event of the touch device or its touchpad satisfies an exclusion condition, the command triggered when the touchpad is pressed is determined to be ignored or not. Therefore, the corresponding command triggered by pressing the touchpad downward is automatically excluded when it does not want to be triggered. Therefore, the user can naturally disable the function of the corresponding command, which is executed when the pressing module is triggered, during use without using other controls, thereby improving the convenience of use.

Abstract: A liquid detecting method and controller for a capacitive touch pad are disclosed. The method includes performing a first mutual capacitance measurement of sensing points of the capacitive touch pad to obtain multiple first sensing values, and then performing a second mutual capacitance measurement of the sensing points to obtain multiple second sensing values, wherein the first and the second mutual capacitance measurements using different frequency of driving signals or different sensing periods for sensing the multiple sensing points. According to the multiple first sensing values and the second sensing values, whether there is liquid on the capacitive touch pad can be determined.

Abstract: A control system applicable to a touch device is provided. The touch device includes a touch sensor. The control system comprises a sensing circuit, configured to sense the touch sensor and generate a plurality of sensing values; a processor, configured to generate a sensing image according to the plurality of sensing values; and a convolutional neural network, configured to process the sensing image to generate feature information and generate identification information according to the feature information for determining a status of the touch sensor.

Abstract: A method of changing the identified type of a touching object is provided. The touching object is on a touch pad. The method includes the following steps: (A) when the type of the touching object is determined as a palm, determining the type of the touching object again; (B) when the type of the touching object is determined as a finger in step (A), informing the operating system that the touching object has left the touch pad when the touching object does not leave the touch pad; and (C) after step (B) is done, informing the operating system that the type of the touching object is a finger.

Abstract: A method of changing the identified type of a touching object is provided. The touching object is on a touch pad. The method includes the following steps: (A) when the type of the touching object is determined as a palm, determining the type of the touching object again; (B) when the type of the touching object is determined as a finger in step (A), informing the operating system that the touching object has left the touch pad when the touching object does not leave the touch pad; and (C) after step (B) is done, informing the operating system that the type of the touching object is a finger.

Abstract: A liquid detecting method and controller for a capacitive touch pad are disclosed. The method includes performing a first mutual capacitance measurement of sensing points of the capacitive touch pad to obtain multiple first sensing values, and then performing a second mutual capacitance measurement of the sensing points to obtain multiple second sensing values, wherein the first and the second mutual capacitance measurements using different frequency of driving signals or different sensing periods for sensing the multiple sensing points. According to the multiple first sensing values and the second sensing values, whether there is liquid on the capacitive touch pad can be determined.

Abstract: A method of detecting liquid on a capacitive touchpad and controller thereof are provided. The capacitive touchpad has multiple first sensing electrodes and multiple second sensing electrodes to form multiple sensing points located at crossings of the first electrodes and the second electrodes. The method has steps of: (a) obtaining first sensing information by performing a self-capacitance measurement to the first sensing electrodes, wherein the first sensing information comprises a first sensing value of each first sensing electrode; (b) obtaining a second sensing value of each sensing point by performing a mutual-capacitance measurement to the multiple sensing points; (c) obtaining second sensing information by respectively accumulating the second sensing values of the sensing points corresponding to each first sensing electrode; and (d) determining whether liquid is present on the capacitive touchpad.

Abstract: A method for determining a force of a touch object on a touch device and for determining its related touch event is provided. The touch object touched on the touch device is clustered into different object groups. Thus, multiple touch objects are simply grouped into two object groups to easily calculate the pressing force that is provided for determining follow-up touch event.

Abstract: A method of identifying a palm area for a touch panel has steps of: receiving sensing frame information having multiple touching sensing points from the touch panel; selecting one of the touching sensing points; outwardly extending a distance from an outline of the selected touching sensing point to define a searching range; checking whether other touching sensing points are within the searching range; marking the touching sensing points in the searching range and expanding the searching range based on the currently marked touching sensing points; sequentially selecting and checking each touching sensing point if it is within the present searching range; and finally merging all the outlines of the marked touching sensing points to form a final outline as a palm area. Other unmarked touching sensing points are defined as touching reference points.

Abstract: A method of identifying a palm area for a touch panel has steps of: receiving sensing frame information having multiple touching sensing points from the touch panel; selecting one of the touching sensing points; outwardly extending a distance from an outline of the selected touching sensing point to define a searching range; checking whether other touching sensing points are within the searching range; marking the touching sensing points in the searching range and expanding the searching range based on the currently marked touching sensing points; sequentially selecting and checking each touching sensing point if it is within the present searching range; and finally merging all the outlines of the marked touching sensing points to form a final outline as a palm area. Other unmarked touching sensing points are defined as touching reference points.

Abstract: A capacitive touch device and a method identifying touch object on the touch device read sensing information of multiple traces of a touch panel corresponding to a touch object, in which the sensing information includes a sensing cluster corresponding to a portion on the touch panel touched by the touch object, identify a hover cluster of the sensing information corresponding to a portion adjacent to and surrounding the sensing cluster, determine if the hover cluster meets a first characteristic, and determine that the touch object is a specific touch object when the hover cluster meets the first characteristic. Given the foregoing device and method, a palm rejection operation can be more accurately performed and is also applicable to object detection at corners of the touch panel.

Abstract: A method of identifying a palm area for a touch panel has steps of: receiving sensing frame information having multiple touching sensing points from the touch panel; selecting one of the touching sensing points; outwardly extending a distance from an outline of the selected touching sensing point to define a searching range; checking whether other touching sensing points are within the searching range; marking the touching sensing points in the searching range and expanding the searching range based on the currently marked touching sensing points; sequentially selecting and checking each touching sensing point if it is within the present searching range; and finally merging all the outlines of the marked touching sensing points to form a final outline as a palm area. Other unmarked touching sensing points are defined as touching reference points.

Abstract: A touch device and a measuring voltage dynamic adjustment method thereof are provided. The touch device comprises a touch panel, a touch sensing circuit and a processing unit. The touch sensing circuit electrically connected to the touch panel is configured to provide a first measuring voltage to the touch panel and sense capacitance variation of the touch panel to generate a plurality of sensing signals. The processing unit electrically connected to the touch sensing circuit is configured to receive the sensing signals, determine whether a touch is caused by a stylus according to the sensing signals and if yes, enable the touch sensing circuit to provide a second measuring voltage to the touch panel. The second measuring voltage is larger than the first measuring voltage.

Abstract: A touch device and a measuring voltage dynamic adjustment method thereof are provided. The touch device comprises a touch panel, a touch sensing circuit and a processing unit. The touch sensing circuit electrically connected to the touch panel is configured to provide a measuring voltage to the touch panel and sense the touch panel to generate a sensing signal. The processing unit electrically connected to the touch sensing circuit is configured to receive the sensing signal, calculate a first ratio according to the sensing signal and dynamically adjust the measuring voltage according to the first ratio.