Abstract: A multi-power management system and a multi-power management method are provided. The multi-power management system includes a plurality of adapters and an electronic device. The adapters are configured to receive an external alternating current power source and provide a plurality of power supplies. The electronic device communicates with the adapters to acquire power values of the power supplies. When the electronic device enters a power-off state, according to a required power value of the electronic device in the power-off state and the power values of the power supplies, at least one of the adapters is selected to provide the power supplies, and unselected adapters are stopped receiving the external alternating current power source.

Abstract: A portable electronic apparatus and a battery power management method thereof are provided. The method includes the following steps. A discharge current of a battery is detected. Whether the discharge current is greater than a current threshold within a predetermined period is determined. If the discharge current is not greater than the current threshold within the predetermined period, whether a fully charge capacity of the battery is less than a battery capacity threshold is determined. If the fully charge capacity of the battery is not less than the battery capacity threshold, a relative state of charge of the battery is controlled to be maintained within a first power range. If the fully charge capacity of the battery is less than the battery capacity threshold, the relative state of charge of the battery is controlled to be maintained within a second power range.

Abstract: A method and system is disclosed for determining an optimum drive signal for an acoustic transducer. A pulse signal is employed as a wideband reference signal Vr(t); and, in a pulse-echo measurement a corresponding wideband echo signal Ve(t) is obtained. A normalized loop frequency response {circumflex over (X)}(f) for the acoustic transducer is defined as a ratio of a Fourier Transform of the Ve(t) to a Fourier Transform of the Vr(t), and a normalized loop time response X(t) is defined as an Inverse Fourier Transform of the {circumflex over (X)}(f). An optimum drive signal B(t) for the acoustic transducer is defined as B(t)?*G(t), wherein a coefficient ? is determined to multiply a function G(t), in which the function G(t) is derived from one of the normalized loop time response X(t) and the normalized loop frequency response {circumflex over (X)}(f).

Abstract: This invention provides a method and a system for identifying users on the internet. The method comprises of five steps. First, a tracking code is embedded into a plurality of web pages or platforms. Then, when an anonymous user browses the web pages or platforms, the information browsed and corresponding tracking codes are collected. After the browsed information and the corresponding tracking codes are analyzed, a database is then established for the browsing patterns of the anonymous user. Finally, the anonymous user is identified when he logs in on one of the web pages or platforms.

Abstract: A method and system is disclosed for determining an optimum drive signal for an acoustic transducer. A pulse signal is employed as a wideband reference signal Vr(t); and, in a pulse-echo measurement a corresponding wideband echo signal Ve(t) is obtained. A normalized loop frequency response {circumflex over (X)}(f) for the acoustic transducer is defined as a ratio of a Fourier Transform of the Ve(t) to a Fourier Transform of the Vr(t), and a normalized loop time response X(t) is defined as an Inverse Fourier Transform of the {circumflex over (X)}(f). An optimum drive signal B(t) for the acoustic transducer is defined as B(t)?*G(t), wherein a coefficient ? is determined to multiply a function G(t), in which the function G(t) is derived from one of the normalized loop time response X(t) and the normalized loop frequency response {circumflex over (X)}(f).

Abstract: An electronic apparatus is provided. The electronic apparatus includes a controller, a first trigger circuit, a switch unit and a logic circuit. The controller provides a setting signal. The first trigger circuit provides a trigger signal according to at least one of first trigger situations. The switch unit is connected to a power input terminal. The logic circuit adjusts a switching signal according to the setting signal and the trigger signal. The switch unit decides whether to provide an input voltage at the power input terminal to the electronic apparatus according to the switching signal.

Abstract: An electronic device including a solar cell, an energy storage unit, a control unit, and a controlled unit is provided. The solar cell converts light energy to electric energy. The energy storage unit performs charging by the electric energy. The control unit determines the intensity of the light energy according to an energy value of the electric energy and generates a correction signal accordingly, wherein the energy value is a current value or a voltage value. The controlled unit controls a characteristic parameter according to the correction signal.

Abstract: A power conversion apparatus is provided. The power conversion apparatus includes an AC to DC adapter, an input port, a power conversion control unit, and a restart circuit. The AC to DC adapter converts an AC input voltage into a DC output voltage according to an external signal of an electronic apparatus and provides the DC output voltage to the electronic apparatus. The input port receives the AC input voltage through an AC input terminal. If the power conversion apparatus does not output the DC output voltage to the electronic apparatus, the power conversion control unit turns off the power conversion apparatus. If the restart circuit detects that an insertion action occurs on the input port, the restart circuit transmits a trigger signal to turn on the power conversion control unit in an off mode.

Abstract: A backlight driving module including a power converter module and a processor module is provided. The power converter module is configured to convert a first power to a second power to drive the backlight module according to a driving parameter set. The processor module is configured to provide the first power to the power converter module. One of the processor module and the power converter module determines a configuration of the backlight module by using identification information. The driving parameter set corresponds to the configuration of the backlight module.

Abstract: An electronic apparatus is provided. The electronic apparatus includes a controller, a first trigger circuit, a switch unit and a logic circuit. The controller provides a setting signal. The first trigger circuit provides a trigger signal according to at least one of first trigger situations. The switch unit is connected to a power input terminal. The logic circuit adjusts a switching signal according to the setting signal and the trigger signal. The switch unit decides whether to provide an input voltage at the power input terminal to the electronic apparatus according to the switching signal.

Abstract: A power control module including a socket, a switch circuit and an interface control circuit is provided. A plug is adapted to be inserted into the socket, and the socket has a positive terminal, a first negative terminal and a second negative terminal. When the plug is inserted into the socket, a negative terminal of the plug sequentially contacts the first negative terminal and the second negative terminal. The switch circuit receives a power voltage through the positive terminal. The interface control circuit determines whether to generate a switching signal to the switch circuit according to a voltage level of the second negative terminal. When receiving the switching signal, the switch circuit outputs the power voltage.

Abstract: An electronic device is provided. The electronic apparatus includes a controller and a dummy load. When the dummy load is turned on by the controller, the dummy load regulates a direct current (DC) output voltage outputted to the electronic device by a power conversion apparatus connected to the electronic device. Accordingly, the electronic device communicates with the power conversion apparatus using the dummy load to dynamically regulate the DC output voltage, so as to avoid power consumption.

Abstract: A power conversion apparatus is provided. The power conversion apparatus includes an AC to DC adapter, an input port, a power conversion control unit, and a restart circuit. The AC to DC adapter converts an AC input voltage into a DC output voltage according to an external signal of an electronic apparatus and provides the DC output voltage to the electronic apparatus. The input port receives the AC input voltage through an AC input terminal. If the power conversion apparatus does not output the DC output voltage to the electronic apparatus, the power conversion control unit turns off the power conversion apparatus. If the restart circuit detects that an insertion action occurs on the input port, the restart circuit transmits a trigger signal to turn on the power conversion control unit in an off mode.

Abstract: An electronic device including a solar cell, an energy storage unit, a control unit, and a controlled unit is provided. The solar cell converts light energy to electric energy. The energy storage unit performs charging by the electric energy. The control unit determines the intensity of the light energy according to an energy value of the electric energy and generates a correction signal accordingly, wherein the energy value is a current value or a voltage value. The controlled unit controls a characteristic parameter according to the correction signal.

Abstract: An electrical connector includes a first terminal and a second terminal. The second terminal is fixed at the first terminal and enclosed by the first terminal, in which the second terminal includes a tube-shaped structure, the tube-shaped structure has a clipping portion and two end-surfaces, the two end-surfaces lean against each other to form a seam. The inner diameter of the clipping portion is smaller than the inner diameters of other portions of the tube-shaped structure. When a third terminal of a coupling connector is inserted into the tube-shaped structure to make the tube-shaped structure elastically deformed, the two end-surfaces are separated from each other and the clipping portion clips the third terminal.

Abstract: A system and a method for calibrating an ambient light sensor (ALS) are disclosed. The ALS, an adjustable resistor and a switch are located on a first surface of a printed circuit board (PCB), and the adjustable resistor and the switch are connected in series between an adjustable probe of the ALS and the ground. A resistor is connected between two pads located on a second surface of the PCB via two probes touching the pads. A controller connected to the PCB reads a light sensitivity of the ALS and calculates a calculated resistance value of the adjustable resistor by a formula “detected light sensitivity/resistance value of the resistor=objective light sensitivity/resistance value of the adjustable resistor”, wherein the objective light sensitivity and the resistance value of the resistor are given.

Abstract: A power supply module including a cable and a power conversion device is provided. The cable includes a power line and a detection line and a terminal thereof connected to an electronic device, wherein the detection line transmits a first electrical numerical energy value of first electrical energy received by the electronic device through the power line. The power conversion device connects another terminal of the cable, transmits second electrical energy to the electronic device and includes an electrical energy control unit and a feedback unit. The feedback unit is used for receiving the first electrical numerical energy value and produces a feedback signal according to the first electrical numerical energy value. The electrical energy control unit receives an input electrical energy, connects the feedback unit, and regulates output electrical energy thereof and the second electrical energy having a second electrical numerical energy value with reference of the feedback signal.

Abstract: A dual-lamp driving circuit includes a first frequency switch control circuit, a second frequency switch control circuit, a pulse-width modulation (PWM) control circuit, a first power stage circuit, a second power stage circuit, a conversion circuit, and a feedback circuit. The first frequency switch control circuit receives a first enable signal, and outputs a first frequency switch signal according to the first enable signal. The second frequency switch control circuit receives a second enable signal, and outputs a second frequency switch signal according to the second enable signal. The PWM control circuit outputs various PWM control signals according to the first frequency switch signal and the second frequency switch signal. The feedback circuit feeds back a first current signal from the first lamp to the frequency switch control circuit, and a second current signal from the second lamp to the frequency switch control circuit.

Abstract: A power control module including a socket, a switch circuit and an interface control circuit is provided. A plug is adapted to be inserted into the socket, and the socket has a positive terminal, a first negative terminal and a second negative terminal. When the plug is inserted into the socket, a negative terminal of the plug sequentially contacts the first negative terminal and the second negative terminal. The switch circuit receives a power voltage through the positive terminal. The interface control circuit determines whether to generate a switching signal to the switch circuit according to a voltage level of the second negative terminal. When receiving the switching signal, the switch circuit outputs the power voltage.

Abstract: An inverter circuit drives a light source module. An input signal circuit provides electrical signals. A power stage circuit converts the electrical signals to square-wave signals. A transformer circuit converts the square-wave signals to alternating current (AC) signals capable of powering the light source module. A voltage detection circuit detects voltage applied on the light source module so as to output a detected voltage signal. A feedback circuit feeds current flowing through the light source module so as to output a current feedback signal. A protection circuit is connected to the voltage detection circuit and the feedback circuit, for outputting a latch signal according to the detected voltage signal or the current feedback signal. A pulse-width modulation control circuit outputs a switch signal to the power stage circuit according to the latch signal. The input signal circuit also provides the electrical signals to the protection circuit.