Abstract: A pen nib module applied to a capacitive stylus includes a pen nib component, a fixing component, and a pressure sensor. The pen nib component includes a non-conductive portion and a conductive portion connected to each other. The fixing component is disposed on an end of the conductive portion opposite to the non-conductive portion and includes a positioning portion and a supporting portion connected to each other. The conductive portion is mounted within the positioning portion, and the supporting portion is connected to an inner wall of the capacitive stylus. The pressure sensor is disposed on a surface of the supporting portion opposite to the positioning portion and is configured to sense deformation of the supporting portion.

Abstract: A wireless input device, a wireless input system, and a control method thereof are provided. The wireless input device includes a wireless transceiver and a processor. The wireless transceiver communicates with a receiving device through a wireless communication protocol. The processor is coupled to the wireless transceiver. The processor controls the wireless transceiver to: periodically switch the wireless transceiver into a signal transmission state to transmit a pending signal to a specific frequency band corresponding to the wireless communication protocol, wherein a first time interval is defined between the signal transmission states; and periodically switch the wireless transceiver into a listening state to receive incoming signals from the specific frequency band, wherein the operation periods of the signal transmission state and the listening state are mutually separated, and a second time interval is defined between the listening states.

Abstract: An active capacitive stylus including a pen body, a receiver, an insulator, and a shell is provided. The pen body has an axial direction. The receiver surrounds the pen body to receive a radio frequency signal. The receiver includes an annular body with two opposite first sides and two opposite second sides. The length of each first side is greater than that of each second side. The two first sides are parallel to the axial direction. Each second side has a first radius of curvature and a second radius of curvature, and the first radius of curvature is different from the second radius of curvature. The insulator is located between the receiver and the pen body. The shell is sleeved on the pen body and wraps around the receiver. A wireless charging system is also provided.

Abstract: An input device includes an encoding plate, a connecting mechanism, a resonance circuit, and M?1 first capacitors. The encoding plate has N fields, each field has M partitions, and there is an electrode on at least one of the partitions of each of the fields. In each field, the electrodes on the corresponding partitions are electrically coupled to each of multiple contacts, wherein the contacts include a first contact and M?1 second contacts. The connecting mechanism is configured to determine whether to connect at least one of the first contact and the second contacts. The resonance circuit is electrically coupled to the first contact and configured to provide an encoded signal with an encoded frequency. The M?1 first capacitors are electrically coupled between the second contacts and the resonance circuit respectively.

Abstract: An active stylus, including a housing, a pen core, a first circuit board, and a touch sensing module, is provided. The pen core, the first circuit board, and the touch sensing module are disposed in the housing. The touch sensing module includes a touch sensing element and a second circuit board. The touch sensing element is disposed on and electrically connected to the second circuit board. The second circuit board is electrically connected to the first circuit board and is abutted to a lateral surface of the first circuit board. The second circuit board is perpendicular to the first circuit board. The pen core is abutted to the touch sensing element.

Abstract: An active stylus including a pen housing, a pen core module disposed in the pen housing, a control module disposed in the pen housing, and an elastic member assembled to the control module and the pen core module is provided. The pen core module has a first end and a second end opposite to each other. The first end is protruded out of the pen housing. The control module has a force sensing element, and an elastic force of the elastic member drives the second end of the pen core module to be abutted to the force sensing element seamlessly.

Abstract: An active stylus, including a housing, a pen core, a first circuit board, and a touch sensing module, is provided. The pen core, the first circuit board, and the touch sensing module are disposed in the housing. The touch sensing module includes a touch sensing element and a second circuit board. The touch sensing element is disposed on and electrically connected to the second circuit board. The second circuit board is electrically connected to the first circuit board and is abutted to a lateral surface of the first circuit board. The second circuit board is perpendicular to the first circuit board. The pen core is abutted to the touch sensing element.

Abstract: An active stylus including a pen housing, a pen core module disposed in the pen housing, a control module disposed in the pen housing, and an elastic member assembled to the control module and the pen core module is provided. The pen core module has a first end and a second end opposite to each other. The first end is protruded out of the pen housing. The control module has a force sensing element, and an elastic force of the elastic member drives the second end of the pen core module to be abutted to the force sensing element seamlessly.