Abstract: A touch sensing system includes a capacitive touch panel, a controller, and a signal source. The capacitive touch panel is used for a user to perform inputs. The controller is coupled to the capacitive touch panel, configured to scan the capacitive touch panel. The signal source is configured to provide a periodical signal for coupling to the user, such that the periodical signal can be coupled to the capacitive touch panel via the user.

Abstract: A card having a fingerprint sensor and a manufacturing method of the same are provided. The fingerprint sensor is disposed between a substrate and a protection layer. The protection layer has a first area and a second area thereon. The roughness of the second area is smaller than the roughness of the first area. The second area corresponds to the sensing area of the fingerprint sensor. When the user's finger is wet, the second area may effectively keep the water from remaining on it. Thus, the water does not affect the effect of fingerprint sensing.

Abstract: A control method for a touchpad is provided. When a vibration unit is driven, the touchpad enters a touch function restriction mode so that the touchpad undergoes various different controls compared to the normal mode. This helps to avoid erroneous capacitive sensing caused by the driving of the vibration unit, preventing determinations in touch operations and avoiding the accidental triggering of commands or gestures. As a result, it reduces or minimizes the influences on user operations.

Abstract: A touchpad has a substrate, a sensing panel and a cover stacked in a sequence. The sensing panel has multiple sensing traces formed thereon. At least one flexible connecting board is connected between the sensing panel and the substrate via its end. The connecting board has multiple extending traces formed thereon, which are thinner than the sensing traces, to form an electrical connection between the sensing traces and the controller on the substrate. The flexible connecting board is used to avoid the problem of trace breakage caused by direct bending of the end of the sensing panel, and the sensing traces are collected by extending traces with smaller line widths so as to reduce the width of the boundary area effectively.

Abstract: A touchpad with a force sensing function and force sensing method thereof are disclosed. In the force sensing method, a touch processing unit having a touch sensing procedure and a force reading procedure is provided. When the touch processing unit executes the touch sensing procedure, a force sensor is provided to sense a force applied on a touchpad body and a plurality of force sensing values are obtained. After that, a calculating unit is provided to accumulate the force sensing values to generate a force result. When the touch processing unit executes the force reading procedure, the touch processing unit reads the force result to determine whether a touch procedure is established or not.

Abstract: A touchpad with a force sensing function and resistive pressure sensor thereof are disclosed. The resistive pressure sensor has a circuit board and a Wheatstone bridge circuit mounted on a deformation zone of the circuit board. The deformation zone deforms when a touchpad body is pressed by a force. The Wheatstone bridge circuit has a first upper-arm resistor, a first lower-arm resistor, a second upper-arm resistor and a second lower-arm resistor. The four arm resistors are in the deformation zone. A direction of current through the first lower-arm resistor and the second upper-arm resistor is different from a direction of current through the second lower-arm resistor and the first upper-arm resistor. Therefore, when the deformation zone of the circuit board deforms by the force, an output voltage of the Wheatstone bridge circuit is relatively increased to enhance a force sensitivity.

Abstract: A touchpad with a force sensing function and resistive pressure sensor thereof are disclosed. The resistive pressure sensor has a circuit board and a Wheatstone bridge circuit mounted on a deformation zone of the circuit board. The deformation zone deforms when a touchpad body is pressed by a force. The Wheatstone bridge circuit has a first upper-arm resistor, a first lower-arm resistor, a second upper-arm resistor and a second lower-arm resistor. The four arm resistors are in the deformation zone. A direction of current through the first lower-arm resistor and the second upper-arm resistor is different from a direction of current through the second lower-arm resistor and the first upper-arm resistor. Therefore, when the deformation zone of the circuit board deforms by the force, an output voltage of the Wheatstone bridge circuit is relatively increased to enhance a force sensitivity.

Abstract: A control method for a touchpad is provided. When a vibration unit is driven, the touchpad enters a touch function restriction mode so that the touchpad undergoes various different controls compared to the normal mode. This helps to avoid erroneous capacitive sensing caused by the driving of the vibration unit, preventing determinations in touch operations and avoiding the accidental triggering of commands or gestures. As a result, it reduces or minimizes the influences on user operations.

Abstract: An active stylus includes an electrode, a recycling capacitor, a first switch, a power source, and a second switch. The first switch is coupled between the recycling capacitor and the electrode. The second switch is coupled between the power source and the electrode. In a first phase, the second switch is turned on, the power source provides a current or a voltage for the electrode and the first switch is turned off. In a second phase, the second switch is turned off and the first switch is turned on. Alternatively, the recycling capacitor may be replaced with an electrode.

Abstract: A control method of a touch pad is provided. The touchpad is designed to avoid misjudging a right-click command when the default conditions are met by not reporting information about a non-specific object, thereby preventing the electronic device from mistakenly interpreting a right-click command triggered by the user when multiple objects contact with the touchpad. As a result, the user is not interrupted by an unintentional right-click command during operation, thus improving the user experience.

Abstract: A multi-port driving and sensing circuit is disclosed and provided for multi-load application. The multi-port driving and sensing circuit has a plurality of bridge switching unit and a controlling unit. A first and second upper switches of each bridge switching unit are commonly connected to a driving voltage terminal, and a first and second lower switches are commonly connected to a reference voltage terminal. When the controlling unit executes a sensing procedure, the first and second upper switches of each bridge switching unit disconnect to the driving voltage terminal and a sensing voltage signal of a load connected to each bridge switching unit is read through a signal reading unit. Therefore, when the sensing voltage signal of the load connected to one of the bridge switching units is read, the sensing voltage signal is not interfered by other sensing voltage signals of the load connected to other bridge switching units.

Abstract: A touchpad with a force sensing function and force sensing method thereof are disclosed. In the force sensing method, a touch processing unit having a touch sensing procedure and a force reading procedure is provided. When the touch processing unit executes the touch sensing procedure, a force sensor is provided to sense a force applied on a touchpad body and a plurality of force sensing values are obtained. After that, a calculating unit is provided to accumulate the force sensing values to generate a force result. When the touch processing unit executes the force reading procedure, the touch processing unit reads the force result to determine whether a touch procedure is established or not.

Abstract: A touch device includes a substrate, a touch sensor and an auxiliary electrode configuration. The touch sensor is located on the upper surface of the substrate. The auxiliary electrode configuration is located outside the touch sensor and is used to transmit an uplink 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 control method of a touchpad is provided. The touchpad has a determination module including a neural network. The determination module is used to determine the type of object. When the user uses the touchpad, the touchpad uses the captured object feature data of the touch object to update the determination module. Therefore, when determining the type of the touch object, the updated determination module can more accurately determine the touch object used by the user, so as to improve the determination accuracy.

Abstract: An inductive electronic identification device and a power-supply-compensation circuit of the same are provided. The power-supply-compensation circuit has a power supply unit and a compensation circuit, and connects to a load unit for supplying the load unit to operate. The compensation circuit receives the compensation signal from the load unit, so that the voltage regulator of the compensation circuit controls the voltage rise and fall of one end of the capacitor of the compensation circuit. The capacitive element switches to the charging or discharging mode according to the power consumption of the load unit. In this way, electrical charges are stored when the load unit consumes less power, and compensation current is provided when the load unit consumes more power, so as to maintain the normal operation of the load unit.

Abstract: A touchpad has a substrate, a sensing panel and a cover stacked in a sequence. The sensing panel has multiple sensing traces formed thereon. At least one flexible connecting board is connected between the sensing panel and the substrate via its end. The connecting board has multiple extending traces formed thereon, which are thinner than the sensing traces, to form an electrical connection between the sensing traces and the controller on the substrate. The flexible connecting board is used to avoid the problem of trace breakage caused by direct bending of the end of the sensing panel, and the sensing traces are collected by extending traces with smaller line widths so as to reduce the width of the boundary area effectively.

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 card having a fingerprint sensor and a manufacturing method of the same are provided. The fingerprint sensor is disposed between a substrate and a protection layer. The protection layer has a first area and a second area thereon. The roughness of the second area is smaller than the roughness of the first area. The second area corresponds to the sensing area of the fingerprint sensor. When the user's finger is wet, the second area may effectively keep the water from remaining on it. Thus, the water does not affect the effect of fingerprint sensing.

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.