Abstract: In some embodiments, a stylus device includes two switch mechanisms, one disposed at the stylus tip portion and the other disposed at the stylus end portion. The stylus device also includes a wireless transceiver that allows the stylus device to communicate back to an electronic host device (e.g., an electronic tablet) in response to a user contacting the surface of a host device with the stylus tip portion or the stylus end portion. This enables, for example, a wide range of dual stylus device functions for electronic tablet applications. For example, the stylus device can be used to write and/or draw with the stylus tip portion and then can be flipped to the stylus end portion to erase as a user would generally do with a conventional pencil on paper. In another example, the stylus device can include a marker color tip on the stylus tip portion and a color blender on the stylus end portion.

Abstract: A radio-frequency mouse is used for receiving an electromagnetic wave transmitted by an electronic device. The radio-frequency mouse includes a RF transceiver, a sensor, a micro-controller, a battery, and a power management circuit. The RF transceiver receives and converts an electromagnetic wave into a RF power. The sensor outputs an operation signal according to an operating condition of the RF mouse. The micro-controller transfers an operation signal to the RF transceiver, and the RF transceiver transmits the operation signal to the electronic device. The power management circuit receives the RF power, and selectively supplies the RF power or the battery power of the battery to the sensor and the micro-controller according to RF power. Thus, when the RF power is higher than a preset value, the RF mouse is supplied with power, thereby saving the battery power of the RF mouse and improving a battery life of the RF mouse.

Abstract: A magneto-electric-induction conversion system of a wireless input device includes an emitter and a receiver. A plurality of serially-connected resonant circuits, arranged side by side, makes resonance, so transmission energy is enhanced. An electromagnetic wave is transmitted via an inductive antenna, then received and converted by predetermined parallel-connected resonant circuits into an available power source, so that the energy is effectively delivered.

Abstract: A magneto-electric-induction conversion system of a wireless input device includes an emitter and a receiver. A plurality of serially-connected resonant circuits, arranged side by side, makes resonance, so transmission energy is enhanced. An electromagnetic wave is transmitted via an inductive antenna, then received and converted by predetermined parallel-connected resonant circuits into an available power source, so that the energy is effectively delivered.