Abstract: The showerhead includes a main body; a power generator disposed in the main body; a power monitor module, disposed in the main body, electrically connected to the power generator, and configured for monitoring quality of power from the power generator and switching on/off power supply of the power generator; and a control module, disposed in the main body, electrically connected to the power monitor module, and configured for controlling functions.

Abstract: A retractable pen includes a barrel, an ink cartridge, a limiting member, a shifting member and a deformable member. When the shifting member is moved relative to the limiting member between a first position and a third position, the ink cartridge can be moved from a retracted position to an extended position or from the extended position to the retracted position. When the ink cartridge is located at the extended position, the deformable member can be further compressed by between the shifting member and the ink cartridge, allowing the shifting member to be moved further from the third position to a second position closer to the ink cartridge. When the shifting member is located at the second position, the ink cartridge is continuously held to the extended position and pressed against a lead-out opening of the barrel without the risk of swaying when a user writes with the retractable pen.

Abstract: An Ethernet network system and method for cancelling common mode signal is disclosed. The Ethernet network system, with a system frequency, utilizes the delay time point of transmitting data so as to suppress frequency spectrum generated by the Ethernet network system. In other words, delay time between a first network data signal and a second network data signal is quarter of a system signal period, delay time between the second network data signal and a third network data signal is quarter of a system signal period, and delay time between the third network data signal and a fourth network data signal is quarter of a system signal period, so as to cancel common mode signals of a first channel and a third channel and cancel common mode signals of a second channel and a fourth channel, wherein the system signal period is corresponding to the system frequency.

Abstract: A battery simulator for simulating the status of a battery connected to a load component includes a controllable current source, a voltage detector, and a gain controller. The controllable current source supplies an output current to the load component according to a current control signal. The voltage detector measures a detection voltage that is generated in response to the output current flowing through the load component. The gain controller is electrically connected to the controllable current source and the voltage detector and generates the current control signal according to a voltage control signal, a gain control signal and the detection voltage.

Abstract: This disclosure provides an ESD protection circuit coupled to a first and a second terminals of a differential-pair circuit. The ESD protection circuit includes: an ESD sensing unit coupled to the first and the second terminals and sensing electrical changes at the first and the second terminals to generate a first trigger signal; and a first discharging unit coupled to the ESD sensing unit and turning on a first discharging path according to the first trigger signal.

Abstract: The showerhead includes a main body; a power generator disposed in the main body; a power monitor module, disposed in the main body, electrically connected to the power generator, and configured for monitoring quality of power from the power generator and switching on/off power supply of the power generator; and a control module, disposed in the main body, electrically connected to the power monitor module, and configured for controlling functions.

Abstract: The ignition system includes a mini hydroelectric generator module connecting an inlet pipe for generating electricity by water flow passing through the inlet pipe and it; a power quality monitoring module electrically connecting the mini hydroelectric generator module for monitoring output electricity quality of the mini hydroelectric generator module and switching on/off the electricity; an ignitor electrically connecting the power quality monitoring module for receiving electricity from the power quality monitoring module to ignite; and an electronic valve electrically connecting the power quality monitoring module for receiving electricity from the power quality monitoring module to switch on/off a gas pipe.

Abstract: The present invention discloses a common mode noise restrainer applicable to Ethernet, comprising: a circuit side configured to connect with an integrated circuit; a cable side configured to connect with a cable; a plurality of transformers set between the circuit side and the cable side; and a plurality of common mode chokes composed of a first part of the common mode chokes and a second part of the common mode chokes in which the first part of the common mode chokes is set between the circuit side and the plurality of transformers and the second part of the common mode chokes is set between the cable side and the plurality of transformers while the one or more transformer(s) connected with the first part of the common mode chokes are not identical to the one or more transformer(s) connected with the second part of the common mode chokes.

Abstract: A transmission line driver circuit includes: a transmission line driving amplifier having a first transmission terminal and a second transmission terminal; a first signal node; a second signal node; a first adjustable resistor positioned between the first transmission terminal and the first signal node; a second adjustable resistor positioned between the second transmission terminal and the second signal node; an internal node; a first divider resistor positioned between the first signal node and the internal node; a second divider resistor positioned between the second signal node and the internal node; a comparing circuit for comparing a divided voltage at the internal node with a reference voltage to generate a comparison signal; and an adjusting circuit for adjusting resistance of at least one of the first and second adjustable resistors according to the comparison signal.

Abstract: A battery simulator for simulating the status of a battery connected to a load component includes a controllable current source, a voltage detector, and a gain controller. The controllable current source supplies an output current to the load component according to a current control signal. The voltage detector measures a detection voltage that is generated in response to the output current flowing through the load component. The gain controller is electrically connected to the controllable current source and the voltage detector and generates the current control signal according to a voltage control signal, a gain control signal and the detection voltage.

Abstract: A method and apparatus for sensing boundaries between materials are provided. The method for sensing boundaries between materials comprises the steps of: fixing sensing modules in place; transmitting and receiving radio frequency signals; and analyzing radio frequency signals. The method enables real-time detection of positions of the boundaries between materials and handling and monitoring of changes in the boundary positions. The apparatus for sensing boundaries between materials comprises at least two sensing modules, or a radio frequency transmitting unit and a plurality of radio frequency signals receiving unit, or a plurality of radio frequency transmitting unit and a radio frequency signals receiving unit. The radio frequency signals are transmitted, received and analyzed by the radio frequency transmitting unit and the radio frequency signals receiving unit to determine the boundary positions and changes therein.

Abstract: A transmission line driver circuit includes: a transmission line driving amplifier having a first transmission terminal and a second transmission terminal; a first signal node; a second signal node; a first adjustable resistor positioned between the first transmission terminal and the first signal node; a second adjustable resistor positioned between the second transmission terminal and the second signal node; an internal node; a first divider resistor positioned between the first signal node and the internal node; a second divider resistor positioned between the second signal node and the internal node; a comparing circuit for comparing a divided voltage at the internal node with a reference voltage to generate a comparison signal; and an adjusting circuit for adjusting resistance of at least one of the first and second adjustable resistors according to the comparison signal.

Abstract: A vehicle idle-speed warning system and vehicle idle-speed detection method thereof are provided. It is non-invasive, that is, there is no need to change or modify any part of the constructing parts in the engine compartment. The present invention can be adopted stand-alone, or be applied to existing popular apparatuses, such as GPS, driving recorders, smart handheld devices, and vehicle electronic equipments. With the composing elements of a motion information module, an input module, an output module, a timer module and an information processing module, the present invention can accurately determine whether the vehicle under surveillance is in idle state and for how long it is in the idle state, and send an alarm signal automatically. With the implementation of the present invention, drivers can always be alarmed with the vehicle idling situations to prevent possible dangers or coming tickets due to the violation of traffic regulations in certain countries.

Abstract: The present application discloses a light-emitting apparatus comprising a first light-emitting semiconductor stack, a first intermediate layer formed on the first light-emitting semiconductor stack and a second light-emitting semiconductor stack formed on the first intermediate layer. The first intermediate layer comprises a first conductive semiconductor layer, a second conductive semiconductor layer and an intermediate region. The intermediate region has a discontinuous structure located between the first conductive semiconductor layer and the second conductive semiconductor layer.

Abstract: A light-emitting device includes: a Distributed Bragg reflector comprising alternate first semiconductor layers and second semiconductor layers, wherein each first semiconductor layer comprises a low-refractive-index part having a depth; and a light-emitting semiconductor stack associated with the Distributed Bragg reflector; wherein the depths of the low-refractive-index parts of the first semiconductor layers are gradually changed in a direction toward the light-emitting semiconductor stack.

Abstract: A constant current generating circuit and constant current generating method applied to a chip are provided, where the chip includes a first current generating circuit and a second current generating circuit, the second current generating circuit includes a transistor and an adjustable resistor. The constant current generating method includes: connecting an external resistor to the first current generating circuit to make the first current generating circuit use the external resistor to generate a first current; utilizing the second current generating circuit to generate a second current; adjusting the adjustable resistor in accordance with the first current and the second current to make the second current substantially equal to the first current, where the second current serves as a constant current of the chip.

Abstract: A light-emitting device comprising a substrate; a semiconductor stack capable of emitting a light; a first reflecting structure between the substrate and the semiconductor stack to reflect the light; and a second reflecting structure between the substrate and the semiconductor stack, wherein the first reflecting structure has a maximum reflectivity when the light is incident to the first reflecting structure at a first incident angle, the second reflecting structure has a maximum reflectivity when the light is incident to the second reflecting structure at a second incident angle.