Abstract: A mouse roller module includes a roller, a sensing unit, an electromagnet and a control unit. The roller includes a ring-shaped magnet and a rotating shaft. The rotating shaft is extended along a first direction. When an external force is exerted on the roller, the ring-shaped magnet is rotated about the rotating shaft. The sensing unit is located near the roller to sense a pole of the ring-shaped magnet. The roller is arranged between the electromagnet and the sensing unit. The electromagnet and the ring-shaped magnet interact with each other to generate a magnetic force. The control unit is electrically connected with the sensing unit and the electromagnet. The control unit controls the electromagnet and the ring-shaped magnet of the roller to generate the magnetic force according to a result of sensing the pole of the ring-shaped magnet by the sensing unit.

Abstract: A mouse roller module includes a roller, a sensing unit, an electromagnet and a control unit. The roller includes a ring-shaped magnet and a rotating shaft. The rotating shaft is extended along a first direction. When an external force is exerted on the roller, the ring-shaped magnet is rotated about the rotating shaft. The sensing unit is located near the roller to sense a pole of the ring-shaped magnet. The roller is arranged between the electromagnet and the sensing unit. The electromagnet and the ring-shaped magnet interact with each other to generate a magnetic force. The control unit is electrically connected with the sensing unit and the electromagnet. The control unit controls the electromagnet and the ring-shaped magnet of the roller to generate the magnetic force according to a result of sensing the pole of the ring-shaped magnet by the sensing unit.

Abstract: A remote controller is provided. The remote controller includes an input interface and an angle sensor. The input interface is used for receiving an input of a user. The angle sensor is used for detecting a rotation angle of the remote controller. In response to a first rotation angle of the remote controller, the input interface is enabled by the remote controller. Consequently, the input interface may be triggered by the user to generate an input signal. After the input interface is enabled, if the input interface has not been triggered for a predetermined time period, the remote controller is operated in a power-saving mode. In response to a second rotation angle of the remote controller, the remote controller is operated in the power-saving mode.

Abstract: A charging control circuit includes a charging module, a switch element, a load detecting element, and an adjusting element. According to the power consumption of a chargeable battery of an electronic device, the load detecting element issues a load range signal. According to the load range signal, the adjusting element issues a control voltage to the switch element. According to the control voltage, the switch element is turned on, and the magnitude of a control current from the switch element is correspondingly adjusted. By the charging module, a charging current corresponding to the control current is provided to charge the chargeable battery. Consequently, the magnitude of the charging current is controlled according to the operating situation of the electronic device, and the charging speed is changed.

Abstract: A charging control circuit includes a charging module, a switch element, a load detecting element, and an adjusting element. According to the power consumption of a chargeable battery of an electronic device, the load detecting element issues a load range signal. According to the load range signal, the adjusting element issues a control voltage to the switch element. According to the control voltage, the switch element is turned on, and the magnitude of a control current from the switch element is correspondingly adjusted. By the charging module, a charging current corresponding to the control current is provided to charge the chargeable battery. Consequently, the magnitude of the charging current is controlled according to the operating situation of the electronic device, and the charging speed is changed.

Abstract: An electronic device using a USB socket to load firmware and a firmware loading method are provided. The electronic device includes a USB socket, a functional chip, and a switching element. The switching element is connected with a bus data transmission pin of the USB socket and a chip data transmission pin of the functional pin. When a high-level voltage is provided to an identification pin of the USB socket, the switching element is turned on. Under this circumstance, the connection between the bus data transmission pin and the chip data transmission pin is established. Consequently, a firmware data can be successfully transmitted to the functional chip through the USB socket.

Abstract: A remote controller is provided. The remote controller includes an input interface and an angle sensor. The input interface is used for receiving an input of a user. The angle sensor is used for detecting a rotation angle of the remote controller. In response to a first rotation angle of the remote controller, the input interface is enabled by the remote controller. Consequently, the input interface may be triggered by the user to generate an input signal. After the input interface is enabled, if the input interface has not been triggered for a predetermined time period, the remote controller is operated in a power-saving mode. In response to a second rotation angle of the remote controller, the remote controller is operated in the power-saving mode.

Abstract: A touch input device includes a touch plate and a controlling unit. The touch plate comprises plural first type touch keys and at least one second type touch key. The number of second touch contacts of each second type touch key is equal to the number of the first type touch keys. The controlling unit has plural connecting ports. The number of the connecting ports is equal to the number of the first type touch keys. Each of the connecting port is connected with the corresponding second touch contacts and the corresponding first type touch key. As a consequence, the number of plural touch signals outputted from the touch input device is greater than the number of the connecting ports of the controlling unit.

Abstract: The present invention discloses a keyboard device for different operating systems in communication with an electronic apparatus. The keyboard device includes at least a key and a control unit. When the control unit recognizes that a first operating system is installed in the electronic apparatus, the control unit outputs a corresponding first key signal in response to the first key code generated by the key, such that the electronic apparatus executes a first key command. When the control unit recognizes that a second operating system is installed in the electronic apparatus, the control unit switches the first key code into a second key code and then outputs a corresponding second key signal, such that the electronic apparatus still executes the first key command.

Abstract: A power-saving method for an input device is provided. The power-saving method includes steps of: counting an idle time of the input device, judging whether an ambient luminance value in an environment of the input device is detected or not according to the idle time of the input device, and allowing the input device to enter a first shallow sleep mode or a deep sleep mode by judging whether the ambient luminance value is higher than or lower than a predetermined luminance value.

Abstract: A shape-changeable camera mouse includes a first casing and a second casing. The first casing includes an image pickup module for shooting an object. When an included angle is defined between the first casing and the second casing, the shape-changeable camera mouse is operated in a mouse mode. Whereas, when the first casing and the second casing are parallel with each other, the shape-changeable camera mouse is operated in a camera mode.

Abstract: An input device with an illuminated roller is provided. The input device includes an upper cover, a lower base, a printed circuit board and an illuminated roller module. The illuminated roller module includes a roller, an encoder, an illuminating device and a supporting member. The illuminating device is disposed within the supporting member, and includes a flexible printed circuit and plural light emitting diodes. The plural light emitting diodes are mounted on the flexible printed circuit. The supporting member has a perforation. The flexible printed circuit of the illuminating device is penetrated through the perforation of the illuminating device and is connected to the printed circuit board. As such, electricity for illuminating is transmitted to the light emitting diodes.

Abstract: A computer system includes a host, a screen and a keyboard/mouse set. The host is used for controlling operations of the computer system. The display screen is used for showing an operating frame of the computer system. A cursor is shown on the operating frame. The mouse could control a motion of the cursor in multiple resolution modes. The keyboard includes a switch element, which is triggered to switch the resolution modes of the mouse.