A computing device including a wireless communication device, an electrostatic interface, and a processor. The processor may be configured to, via the electrostatic interface, detect a peripheral device proximate the surface. In response to detecting the peripheral device, the processor may be further configured to establish wireless pairing with the peripheral device at least in part by performing an identifier exchange via the electrostatic interface. Subsequently to performing the identifier exchange, establishing wireless pairing may further include generating a temporary key and transmitting the temporary key to the peripheral device via the electrostatic interface. Subsequently to transmitting the temporary key, establishing wireless pairing may further include receiving a first wireless pairing signal from the peripheral device via the wireless communication device. Subsequently to receiving the first wireless pairing signal, establishing wireless pairing may further include transmitting a second wireless pairing signal to the peripheral device via the wireless communication device.

A liquid crystal writing device is erased by a stylus. The liquid crystal writing device includes a liquid crystal layer including cholesteric liquid crystal material. A user applies pressure to a flexible substrate that changes reflectivity of the cholesteric liquid crystal material to form images on the liquid crystal writing device. The liquid crystal layer is disposed between electrically conductive layers. Writing device terminals are electrically conductive and connected to the electrically conductive layers. The stylus includes stylus electronics adapted to apply an erase voltage or erase voltage waveform to the writing device terminals.

A mouse device includes a body, a cover plate, a covering layer, and an adhesive layer. The cover plate is disposed on the body and includes a button. The covering layer covers the cover plate, and the material of the covering layer is different from the material of the cover plate. The adhesive layer is bound between the cover plate and the covering layer, and the adhesive layer has a hollow portion corresponding to the button.

A mouse includes a main housing, a key structure, and a pressing force adjusting component. The key structure has a connecting end, a free end, and an elastic section. The connecting end is connected to the main housing, and the elastic section is located between the connecting end and the free end. The pressing force adjusting component is movably disposed on the main housing and has a limiting portion, and the limiting portion limits elastic deformation of the elastic section. A location of the pressing force adjusting component on the main housing is adapted to be changed to change a location of the limiting portion at the elastic section.

A method of controlling a projector includes projecting an achromatic area image representing a drawing area in which the projector receives drawing using a pointer on a projection surface at a first luminance at a ratio on the projection surface, the ratio being smaller than or equal to a specific ratio to a maximum luminance at which the projector capable of project an image on the projection surface, detecting a position on the projection surface pointed by the pointer while projecting the area image, determining whether or not the position is included in the drawing area, and displaying, by the projector, an area including at least a part of an outline of the drawing area at a luminance higher than the first luminance when it is determined that the position is included in the drawing area.

A mouse device includes a middle frame, a switch, a button plate, a slidable element and an elastic element. The middle frame includes an opening part and a first hook. The first hook is located beside the opening part. The switch is fixed at a position under the middle frame. The switch includes a triggering part. The button plate is located over the middle frame. The button plate includes a pressing rod. The pressing rod is penetrated downwardly through the opening part. The pressing rod includes a receiving groove and a first sleeve. The receiving groove is located over the first sleeve. The first sleeve includes a perforation. The slidable element includes a second sleeve and a second hook. The second sleeve is installed within the first sleeve. The second hook is engaged with the perforation. The elastic element is disposed within the second sleeve.

A method of capacitive sensing includes obtaining a capacitive touch profile from multiple receiver electrodes disposed in a sensing region of an input device and obtaining an active pen profile, different from the capacitive touch profile, from the multiple receiver electrodes. The method also includes adjusting, using the capacitive touch profile, the active pen profile to obtain a corrected active pen profile and determining a position of an active pen in the sensing region, using the corrected active pen profile.

An electronic device is provided. The electronic device includes a housing, a nib which is disposed in the housing, includes a pen tip protruding to the outside through the second end, and includes a dielectric coil wound multiple times therein, a printed circuit board electrically connected to the dielectric coil, a board seating part which is at least partially coupled to the nib and in which a printed circuit board is seated, an elastic member seating part disposed in the housing such that the elastic member seating part and the board seating part are at least partially fitted to each other, and an elastic member disposed between the elastic member seating part and the board seating part, when the nib is pressed in a direction toward the inside of the housing by the pen pressure, the pen pressure is transmitted to the elastic member via the board seating part.

This application discloses a wireless keyboard. The wireless keyboard includes a connection portion. The connection portion includes an accommodating cavity with an opening at an end and used for accommodating an electronic stylus. A wireless charging coil is arranged in the accommodating cavity. A charging interface and a wireless charging control module are arranged in the wireless keyboard. The wireless charging control module is connected to the charging interface and the wireless charging coil. The charging interface can receive a direct current signal. The wireless charging control module can convert, if it is detected that a direct current signal is inputted to the charging interface, the direct current signal into an alternating current signal and transmit the alternating current signal to the wireless charging coil. The wireless charging coil generates an alternating electromagnetic field in response to the alternating current signal, to wirelessly charge the electronic stylus.

An embodiment of the present disclosure provides a touch apparatus including: a touch sensor; and a touch controller operating in a full driving mode for applying a first driving signal for generating a resonance signal of a stylus pen to the touch sensor and a skip driving mode in which a second driving signal having a period having an off-duty different from that of the first driving signal is applied to the touch sensor, and obtaining touch coordinate information from a detection signal received from the touch sensor.