Abstract: A digital photo frame having power saving functions includes a display panel, a power generation unit for switching a system power according to a power control signal, a passive infrared sensor installed on the display panel for detecting whether a user exists within a specific range to generate a user detection signal, a central processing unit for adjusting backlight intensity of the display panel when the system power is provided by the power generation unit according to the user detection signal and for generating a power switch-off signal when the backlight intensity of the display panel is turned off according to the user detection signal, and a power control unit for generating the power control signal to switch off the system power when the backlight intensity of the display panel is adjusted to be switched off according to the power switch-off signal.

Abstract: A digital photo frame having power saving functions includes a display panel, a power generation unit for switching a system power according to a power control signal, a user detection unit installed on the display panel for detecting whether a user exists within a specific range to generate a user detection signal, a central processing unit for adjusting backlight intensity of the display panel when the system power is provided by the power generation unit according to the user detection signal and for generating a power switch-off signal when the backlight intensity of the display panel is turned off according to the user detection signal, and a power control unit for generating the power control signal to switch off the system power when the backlight intensity of the display panel is adjusted to be switched off according to the power switch-off signal.

Abstract: The present invention discloses a fixing mechanism for fixing a board card on a circuit board. The fixing mechanism includes a standoff for supporting the board card on the circuit board. A first end of the standoff is fixed inside a hole on the circuit board. A stepping opening is formed on a second end of the standoff, and the second end of the standoff contacts against the board card. The fixing mechanism further includes a blind rivet, a first end of the blind rivet engages inside the stepping opening, and a second end of the blind rivet fastens on the board card so as to fix the board card on the circuit board.

Abstract: A power control device for an electronic device for enhancing power stability when the electronic device is powered on including a high-pass filtering unit for performing a filtering process on an input signal for generating an output signal, and a control unit coupled to the high-pass filtering unit and a first voltage generator of the electronic device for outputting the output signal to the first voltage generator according to the voltage level of the output signal.

Abstract: A power control device for an electronic device for enhancing power stability when the electronic device is powered on including a high-pass filtering unit for performing a filtering process on an input signal for generating an output signal, and a control unit coupled to the high-pass filtering unit and a first voltage generator of the electronic device for outputting the output signal to the first voltage generator according to the voltage level of the output signal.

Abstract: A digital photo frame having power saving functions includes a display panel, a power generation unit for switching a system power according to a power control signal, a user detection unit installed on the display panel for detecting whether a user exists within a specific range to generate a user detection signal, a central processing unit for adjusting backlight intensity of the display panel when the system power is provided by the power generation unit according to the user detection signal and for generating a power switch-off signal when the backlight intensity of the display panel is turned off according to the user detection signal, and a power control unit for generating the power control signal to switch off the system power when the backlight intensity of the display panel is adjusted to be switched off according to the power switch-off signal.