Abstract: A selectable backup power supply device for providing power to a real time clock (RTC) and a memory unit is disclosed. The device includes a backup battery, a first power outputting unit and a second power outputting unit, wherein the backup battery outputs a backup voltage, the first power outputting unit is connected to the backup battery and the RTC for receiving the backup voltage and outputting a first supply voltage to the RTC, and the second power outputting unit is connected to the backup battery and the memory unit, for receiving the backup voltage and, in accordance with a selection signal, outputting a second supply voltage to the memory unit or stopping the output of the second supply voltage.

Abstract: A signal transferring device adapted to connect to a communication device via a network cable, includes a network port, a third port, a decoder circuit and a signal strength indicator unit. The network port is connected to a communication device via a network cable. The third port is different from the network port and connected to a plurality of signal lines and a ground line of a main board of the communication device via the network port. The decoder circuit is connected to a power line, a ground line and at least one first control line of the main body to receiving a signal in relation to a signal receiving strength state of the communication device for generating a signal strength indicator signal. The signal strength indicator unit is connected to the decoder circuit and configured for displaying the signal receiving strength state of the communication device.

Abstract: Exemplary embodiments of the present disclosure provide several packet scheduling methods and communication apparatuses using the same. The packet scheduling method is different from the conventional packet scheduling method, since it does not schedule the sleep interval of the mobile subscriber station based upon the connections as the conventional packet scheduling method. Instead, the packet scheduling method considers the quality of service, and aggregates the data bursts to the frame corresponding to the frame index to which the data bursts are shifted based upon the individual packet, such that a total time length of the sleep intervals of the mobile subscriber station is maximized, and the maximum power saving efficiency is obtained correspondingly.

Abstract: A communication system for a plurality of I/O cards by using the GPIO (General Purpose Input/Output) and a method thereof are disclosed for overcoming the problems of the prior art; wherein the prior art uses the I2C and UART communication channels causing a greater quantity of the connecting lines to connect, thus the bus resource of the chip is consumed, which raises its cost. The present invention uses at least one GPIO port to replace a failure line of the I2C communication channel, or a failure line of the UART communication channel. The present invention also uses one or a plurality of additional GPIO ports to be the backup GPIO ports. Therefore, the present invention has a lot of characteristics, including excellent back-up capability, low cost, the communication channels can be easily switched, the required quantity of the signal lines is reduced, and the reliability of the communication is increased.

Abstract: A resettable short circuit protection configuration includes a power input terminal, a power output terminal, a first electrically controlled switch, which has a control end and two conducting ends, the two conducting ends being respectively electrically connected to the power input terminal and the power output terminal, a second electrically controlled switch, which has a control end and two conducting ends, the two conducting ends being respectively electrically connected to the power input terminal and the control end of the first electrically controlled switch, a first resistor, which has two opposite ends respectively electrically connected to the control end of the first electrically controlled switch and a grounding terminal, and a second resistor, which has two opposite ends respectively electrically connected to the control end of the second electrically controlled switch and the power output terminal.

Abstract: A metallic cover of a miniaturization module includes a substrate, a SMD chip unit and a metallic cover, the metallic cover embracing the SMD chip unit and having at least one sizing hole and a plurality of venting holes, the venting holes being disposed around the sizing hole, and the sizing hole and the venting holes being positioned above the SMD chip unit so that glue portions fill up slits between the metallic cover and the SMD chip unit. The venting holes stop the glue portion from running over the second chip unit. The glue-filled slits between the top lid and the SMD chip unit provides a strong support to prevent any deformation of the metallic cover when the metallic cover is tested and processed.

Abstract: A voltage regulating system includes a generator, a battery, a warning light, a starting switch, and a voltage regulator. The voltage regulator includes an exciting driver connected to an exciting winding of the generator so as to excite the exciting winding; a voltage built-up/current leakage protection unit connected to a battery and the exciting driver so as to receive a battery voltage and drive the exciting driver for building the output voltage of the generator, while the generator at low speed operation. The voltage regulator further includes an exciting cut-off driver connected to the exciting driver and the voltage built-up/current leakage protection unit so as to cut the exciting driver off in response to the output voltage of the generator built by the voltage built-up/current leakage protection unit.