Abstract: A keyboard with a recharge function for a computer system having a rechargeable wireless peripheral is described. The keyboard includes a charger and a charging dock. The charger is disposed inside the keyboard and charges the rechargeable wireless peripheral with power from the keyboard. The charging dock is a channel with an opening on a sidewall of the keyboard and can store the rechargeable wireless peripheral therein so as to electrically couple the rechargeable wireless peripheral to the charger.

Abstract: A camera module installed on an electronic device is described. A main body is rotatably connected with the electronic device. An image sensing unit is disposed on the main body for obtaining images. A magnetic sensor is disposed on the main body. A magnet is disposed on the electronic device. When the main body rotates, a magnetic field density measured by the magnetic sensor varies as a distance between the magnetic sensor and the magnet varies. A control unit is to judge a position of the image sensing unit according to the magnetic field density measured by the magnetic sensor.

Abstract: A power-saving device implemented as a circuit design for a notebook computer comprises a power supply providing power to notebook computer, a built-in device, a control circuit connecting between the power supply and the built-in device, and a switch connecting to the power supply and the built-in device. The switch includes an electric control switch and a manual control switch. When the built-in device is temporarily idle, a user presses the switch to turn off the power of the built-in device via a control circuit to save power.

Abstract: A keyboard with a recharge function for a computer system having a rechargeable wireless peripheral is described. The keyboard includes a charger and a charging dock. The charger is disposed inside the keyboard and charges the rechargeable wireless peripheral with power from the keyboard. The charging dock is a channel with an opening on a sidewall of the keyboard and can store the rechargeable wireless peripheral therein so as to electrically couple the rechargeable wireless peripheral to the charger.

Abstract: The computer comprises a power supply for supplying power. The power saving device for network controller of computer comprises a network controller, a switch connecting between the power supply and the network controller, a control circuit connecting the power supply and the switch and a network connector. The network comprises a network pin and a power saving pin. The network pin is electrically connected the network controller. The power saving pin is electrically connected the control circuit. When access to the Internet is not required, the computer cuts off power to the network controller via the power saving pin to reduce power consumption.

Abstract: A power-saving device implemented as a circuit design for a notebook computer comprises a power supply providing power to notebook computer, a built-in device, a control circuit connecting between the power supply and the built-in device, and a switch connecting to the power supply and the built-in device. The switch includes an electric control switch and a manual control switch. When the built-in device is temporarily idle, a user presses the switch to turn off the power of the built-in device via a control circuit to save power.