Abstract: A synchronous transmission device includes a first communication port, a first bus instance and a second bus instance. The first communication port is connected to the first endpoint and the second endpoint. The first bus instance executes a first data transmission with the first endpoint according to a first node of a first schedule list. The first node corresponds to the first endpoint, and the first bus instance corresponds to the first communication port. When the first data transmission is executed, the first bus instance is further configured to determine whether the second bus instance is idle. When the second bus instance is idle, the first bus instance controls the second bus instance to execute a second data transmission with the second endpoint according to a second node of the first schedule list. The second node of the first schedule list corresponds to the second endpoint.

Abstract: A shower clamp structure includes a gear with a pillar, a spiral spring, two clamping members, a cover, and a screw locking member. The adaptor has a recession formed at an end of the adaptor for receiving the spiral spring, and an end of the spiral spring is positioned in the recession, and a protrusion of the gear is disposed in the spiral spring, and the external periphery of the protrusion is provided for positioning a free end of the spiral spring, and the two clamping members have a protective plate each, and both opposite sides of two protective plates have a plate each and each plate has a rack facing the gear, and each rack is engaged with the gear, and the cover has a guide slot facing the adaptor and provided for receiving the plates of the two clamping members. The screw locking member is passed through the cover, gear, and spiral spring and screwed into the adaptor.

Abstract: An electronic device comprising a mainboard and a device is provided. The mainboard includes a first storage circuit, a CPU circuit and a data transmission interface circuit. The first storage circuit is configured to store a first firmware code of a basic input/output system, the CPU circuit is coupled to the first storage circuit, the CPU circuit is configured to execute the first firmware code to run the basic input/output system, and the data transmission interface circuit is coupled to the CPU circuit. The device is coupled to the data transmission interface circuit of the mainboard for providing a device function to the CPU circuit via the data transmission interface circuit. The device includes a controller, the controller includes a second storage circuit, a microcontroller and a suspend power register. An operation method of the electronic device is also provided.

Abstract: A synchronous transmission device includes a first communication port, a first bus instance and a second bus instance. The first communication port is connected to the first endpoint and the second endpoint. The first bus instance executes a first data transmission with the first endpoint according to a first node of a first schedule list. The first node corresponds to the first endpoint, and the first bus instance corresponds to the first communication port. When the first data transmission is executed, the first bus instance is further configured to determine whether the second bus instance is idle. When the second bus instance is idle, the first bus instance controls the second bus instance to execute a second data transmission with the second endpoint according to a second node of the first schedule list. The second node of the first schedule list corresponds to the second endpoint.

Abstract: An electronic device comprising a mainboard and a device is provided. The mainboard includes a first storage circuit, a CPU circuit and a data transmission interface circuit. The first storage circuit is configured to store a first firmware code of a basic input/output system, the CPU circuit is coupled to the first storage circuit, the CPU circuit is configured to execute the first firmware code to run the basic input/output system, and the data transmission interface circuit is coupled to the CPU circuit. The device is coupled to the data transmission interface circuit of the mainboard for providing a device function to the CPU circuit via the data transmission interface circuit. The device includes a controller, the controller includes a second storage circuit, a microcontroller and a suspend power register. An operation method of the electronic device is also provided.

Abstract: An anti-siphon one-way valve includes a valve seat, a valve core, a return spring, and a Y-shaped ring. The valve seat has an inlet and an outlet. The valve seat has a valve cavity therein. The valve cavity communicates with the inlet and the outlet respectively. The valve core is slidably mounted in the valve cavity. The Y-shaped ring is installed on the valve core and leans against the side wall of the valve cavity. The Y-shaped ring has a Y-shaped cross-section. The return spring is fitted on the valve core. The present invention provides a better anti-siphon effect, and the requirements for precision in size and installation are lower, and the production cost is reduced.

Abstract: An anti-siphon one-way valve includes a valve seat, a valve core, a return spring, and a Y-shaped ring. The valve seat has an inlet and an outlet. The valve seat has a valve cavity therein. The valve cavity communicates with the inlet and the outlet respectively. The valve core is slidably mounted in the valve cavity. The Y-shaped ring is installed on the valve core and leans against the side wall of the valve cavity. The Y-shaped ring has a Y-shaped cross-section. The return spring is fitted on the valve core. The present invention provides a better anti-siphon effect, and the requirements for precision in size and installation are lower, and the production cost is reduced.

Abstract: An electronic device comprises a first memory unit, a processing unit and an operating interface. The processing unit is electronically connected to the first memory unit. The operating interface is electronically connected to the processing unit. When the processing unit is communicated with a host device via the operating interface, the processing unit executes a loading program and transmits a notification signal to the host device. The host device transmits at least one control program to the first memory unit according to the notification signal. When the control program is transmitted, the processing unit is reset and then executes the control program stored in the first memory unit. The stored firmware can be added or modified, and the circuit layout is simplified.

Abstract: A shower head with an auto-locking cover includes a body unit, a rotation support seat, a seal seat and a cover unit. The seal seat is fixedly connected to an underside of the body unit. The rotation support seat is secured through the body unit and the seal seat. The rotation support seat is formed with an insertion hole and an engaging step. The cover unit is formed with a hook corresponding to the insertion hole and the engaging step. The cover unit is mounted to an underside of the rotation support seat. The rotation support seat is further formed with an elastic piece. The cover unit is formed with an engaging recess corresponding to the elastic piece. By turning the rotation support seat, the elastic piece is engaged in the engaging recess so that the cover unit is connected to the underside of the rotation support seat.

Abstract: A shower head with an auto-locking cover includes a body unit, a rotation support seat, a seal seat and a cover unit. The seal seat is fixedly connected to an underside of the body unit. The rotation support seat is secured through the body unit and the seal seat. The rotation support seat is formed with an insertion hole and an engaging step. The cover unit is formed with a hook corresponding to the insertion hole and the engaging step. The cover unit is mounted to an underside of the rotation support seat. The rotation support seat is further formed with an elastic piece. The cover unit is formed with an engaging recess corresponding to the elastic piece. By turning the rotation support seat, the elastic piece is engaged in the engaging recess so that the cover unit is connected to the underside of the rotation support seat.

Abstract: A circuit and a method for driving light emitting diodes (LEDs) are provided. First, an input voltage is converted into an output voltage and the output voltage is transmitted to the anode terminals of LED strings. The output voltage is reduced when the output voltage is greater than a first threshold voltage and the output voltage is reduced when the lowest level among the cathode terminal voltages of all the LED strings is greater than a second threshold voltage. Thus, the output voltage can be maintained at a lower level for driving all the LED strings to reduce unnecessary power wastage.

Abstract: A driving circuit for a light emitting diode (LED) and a method thereof are provided. The driving circuit includes a voltage converting circuit and a reference voltage generator. The reference voltage generator generates a reference voltage according to the cathode voltage of the LED. The voltage converting circuit automatically adjusts the driving voltage of the LED based on the reference voltage so as to reduce the possibility of unnecessary power wastage caused by high driving voltage.

Abstract: A light-emitting diode driving circuit includes a control circuit, a transistor switch and a compensating circuit. The control circuit receives an oscillating signal to generate a pulse drive signal. The transistor switch is activated by the pulse drive signal such that an inductor is charged by an input voltage, in which the inductor is arranged to deliver an inducting current to at least one light-emitting diode when the transistor switch is deactivated. The compensating circuit is coupled between the control circuit and a capacitor provided for reducing ripples of an output voltage corresponding to the inducting current. The compensating circuit performs a charging and discharging operation along with the capacitor when controlled by a dimming control signal provided to control brightness of the light-emitting diode.

Abstract: A driving circuit includes a DC-to-DC voltage converter, a current source, a detector and a feedback control circuit. The DC-to-DC voltage converter has a switch and generates a driving voltage on first ends of the series of light emitting diodes, in which a magnitude of the driving voltage is correlated with conduction of the switch. The current source is coupled to second ends of the series of the light emitting diodes and provides driving currents flowing through the light emitting diodes. The detector generates a feedback voltage corresponding to a sum of voltages on the second ends of the series of the light emitting diodes. The feedback control circuit generates a first control signal which controls the conduction of the switch in response to the feedback voltage.

Abstract: A driving circuit for a light emitting diode (LED) and a method thereof are provided. The driving circuit includes a voltage converting circuit and a reference voltage generator. The reference voltage generator generates a reference voltage according to the cathode voltage of the LED. The voltage converting circuit automatically adjusts the driving voltage of the LED based on the reference voltage so as to reduce the possibility of unnecessary power wastage caused by high driving voltage.

Abstract: A driving circuit includes a DC-to-DC voltage converter, a current source, a detector and a feedback control circuit. The DC-to-DC voltage converter has a switch and generates a driving voltage on first ends of the series of light emitting diodes, in which a magnitude of the driving voltage is correlated with conduction of the switch. The current source is coupled to second ends of the series of the light emitting diodes and provides driving currents flowing through the light emitting diodes. The detector generates a feedback voltage corresponding to a sum of voltages on the second ends of the series of the light emitting diodes. The feedback control circuit generates a first control signal which controls the conduction of the switch in response to the feedback voltage.

Abstract: A circuit and a method for driving light emitting diodes (LEDs) are provided. First, an input voltage is converted into an output voltage and the output voltage is transmitted to the anode terminals of LED strings. The output voltage is reduced when the output voltage is greater than a first threshold voltage and the output voltage is reduced when the lowest level among the cathode terminal voltages of all the LED strings is greater than a second threshold voltage. Thus, the output voltage can be maintained at a lower level for driving all the LED strings to reduce unnecessary power wastage.

Abstract: A light-emitting diode driving circuit includes a control circuit, a transistor switch and a compensating circuit. The control circuit receives an oscillating signal to generate a pulse drive signal. The transistor switch is activated by the pulse drive signal such that an inductor is charged by an input voltage, in which the inductor is arranged to deliver an inducting current to at least one light-emitting diode when the transistor switch is deactivated. The compensating circuit is coupled between the control circuit and a capacitor provided for reducing ripples of an output voltage corresponding to the inducting current. The compensating circuit performs a charging and discharging operation along with the capacitor when controlled by a dimming control signal provided to control brightness of the light-emitting diode.

Abstract: A computer platform automatic testing method and system is proposed, which is designed for use in conjunction with a computer platform for performing an automatic testing procedure on a computer-dedicated circuit unit installed on the computer platform, and which is characterized by the capability of performing an automatic testing procedure on a computer-dedicated circuit unit based on a user-specified set of hardware specification data about the computer platform and circuit unit under test, and the capability of automatically generating a test report that lists related data about each faulted part of the circuit unit being tested. This feature allows hardware engineers to more conveniently and efficiently correct faulted parts in the circuit unit being tested.

Abstract: A recoverable connector structure and a cradle having the same are provided. The cradle includes a base plate, a fixed stand, a recoverable assembly having a bolt and an elastic body, a support body, a shielding plate, a circuit board, a second connector and a case. An electronic device couples with the second connector of the cradle through a first connector of the electronic device. When the electronic device is pulled from the second connector of the cradle, the recoverable assembly allows the second connector and the circuit board to rotate in a certain angle. As the electronic device is separated from the cradle, the second connector can return to its initial position. This design not only makes the process of pulling up the electronic device smooth, but also avoids the second connector from fatigued damage to extend the cradle's life.