Abstract: A control circuit for the switching regulator and a method for regulating electrical signal are disclosed. The control circuit for the switching regulator includes a switching regulator and a clock control unit. The switching regulator regulates an output voltage according to a reference voltage and a feedback voltage. The clock control unit is coupled to the switching regulator, and the clock control unit includes an oscillator and a pulse blanking modulator. The oscillator provides an oscillation signal, and the pulse blanking modulator is configured to generate a control signal that blanks a portion of the oscillation signal. The clock control unit provides the control signal in order to maintain an output electrical signal in a sleep mode of the switching regulator within a predetermined range.

Abstract: A control circuit for the switching regulator and a method for regulating electrical signal are disclosed. The control circuit for the switching regulator includes a switching regulator and a clock control unit. The switching regulator regulates an output voltage according to a reference voltage and a feedback voltage. The clock control unit is coupled to the switching regulator, and the clock control unit includes an oscillator and a pulse blanking modulator. The oscillator provides an oscillation signal, and the pulse blanking modulator is configured to generate a control signal that blanks a portion of the oscillation signal. The clock control unit provides the control signal in order to maintain an output electrical signal in a sleep mode of the switching regulator within a predetermined range.

Abstract: A reference frequency setting method of a flash memory storage apparatus is provided. The flash memory storage apparatus includes a flash memory module, a storage unit, and an oscillator circuit without a crystal. The reference frequency setting method includes following steps. Whether a setting code is stored in the flash memory module or the storage unit is determined, wherein the setting code includes information of a reference frequency. If the setting code is stored in the flash memory module, the setting code is read to allow the oscillator circuit to generate the reference frequency according to the setting code. A memory controller and a flash memory storage apparatus using the reference frequency setting method are also provided.

Abstract: A method and a data transceiving system for generating a reference clock signal are provided. The data transceiving system comprises a voltage controlled oscillator, a phase lock loop (PLL) unit, and a data receiver. The voltage controlled oscillator is used to generate a reference clock signal. The PLL unit is used to increase a clock frequency of the reference clock signal to generate a PLL clock signal. The data receiver is used to compare the PLL clock signal with a clock signal of an input data stream, so as to output a voltage adjusting signal to the voltage controlled oscillator. The voltage controlled oscillator adjusts the clock frequency of the reference clock signal to be generated according to the reference clock signal, so as to lock the clock frequency of the PLL clock signal to a base frequency of the clock signal of the input data stream.

Abstract: A reference frequency setting method of a flash memory storage apparatus is provided. The flash memory storage apparatus includes a flash memory module, a storage unit, and an oscillator circuit without a crystal. The reference frequency setting method includes following steps. Whether a setting code is stored in the flash memory module or the storage unit is determined, wherein the setting code includes information of a reference frequency. If the setting code is stored in the flash memory module, the setting code is read to allow the oscillator circuit to generate the reference frequency according to the setting code. A memory controller and a flash memory storage apparatus using the reference frequency setting method are also provided.

Abstract: A method and a data transceiving system for generating a reference clock signal are provided. The data transceiving system comprises a voltage controlled oscillator, a phase lock loop (PLL) unit, and a data receiver. The voltage controlled oscillator is used to generate a reference clock signal. The PLL unit is used to increase a clock frequency of the reference clock signal to generate a PLL clock signal. The data receiver is used to compare the PLL clock signal with a clock signal of an input data stream, so as to output a voltage adjusting signal to the voltage controlled oscillator. The voltage controlled oscillator adjusts the clock frequency of the reference clock signal to be generated according to the reference clock signal, so as to lock the clock frequency of the PLL clock signal to a base frequency of the clock signal of the input data stream.

Abstract: A magic finger mouse comprises a glove capable of being worn on a hand; the glove including a transmitter module, a sensor, a touch button and a central processing module; the central processing module having a memory and a charge cell; power of the transmitter module being from the central processing module; one end of the central processing module being installed with a USB joint; the USB joint can be inserted into a cable for further connecting to a computer so that files can be stored to the memory and charge cell can be charged through the USB joint; the transmitter module connected to the sensor for transmitting signals to a receiving module; and the receiving module installed at one end of a screen for providing signals to the transmitter module.

Abstract: A multi-functional alert safety helmet assembly, comprises a safety helmet having a base plate, the base plate being installed with a wireless receiving module and a control unit; the safety helmet further installed with a display panel and indication lamps which are at the base plate; and the display panel is formed by light emitting elements; two sides of the display panel having the indication lamps; the light emitting elements flashing sequentially to present textures or patterns. The base plate is connected to the display panel and indication lamps for displaying signals from the wireless transmitting module; the flash of the indication lamps are controlled by the control unit; and display of the light emitting lights of the display panel; when turning right, right indication lamps will flash and when turning left, the left indication lamps will flash.

Abstract: A bandgap reference circuit having a low sensitivity to temperature and supplied voltage installs a compensation circuit on a bandgap reference circuit to substitute a prior art that uses a resistor to match the circuit startup purpose and solve the problem of startup error caused by the manufacturing error. The bandgap reference circuit includes a first amplifier, a second amplifier, and a reference circuit having a plurality of transistors and a plurality of bipolar junction transistors, and the bandgap reference circuit is electrically connected to a same supplied power of which the reference circuit is electrically connected and also includes a plurality of transistors and a compensation circuit of the second amplifier, so as to output a stable startup voltage which has a low sensitivity to the change of temperature and the change of supplied voltage.

Abstract: A multi-functional alert safety helmet assembly, comprises a safety helmet having a base plate, the base plate being installed with a wireless receiving module and a control unit; the safety helmet further installed with a display panel and indication lamps which are at the base plate; and the display panel is formed by light emitting elements; two sides of the display panel having the indication lamps; the light emitting elements flashing sequentially to present textures or patterns. The base plate is connected to the display panel and indication lamps for displaying signals from the wireless transmitting module; the flash of the indication lamps are controlled by the control unit; and display of the light emitting lights of the display panel; when turning right, right indication lamps will flash and when turning left, the left indication lamps will flash.

Abstract: A bandgap reference circuit having a low sensitivity to temperature and supplied voltage installs a compensation circuit on a bandgap reference circuit to substitute a prior art that uses a resistor to match the circuit startup purpose and solve the problem of startup error caused by the manufacturing error. The bandgap reference circuit includes a first amplifier, a second amplifier, and a reference circuit having a plurality of transistors and a plurality of bipolar junction transistors, and the bandgap reference circuit is electrically connected to a same supplied power of which the reference circuit is electrically connected and also includes a plurality of transistors and a compensation circuit of the second amplifier, so as to output a stable startup voltage which has a low sensitivity to the change of temperature and the change of supplied voltage.

Abstract: A keyboard with light and sound effects comprises an auto-uncover keyboard cover having a main cover plate, a main spindle set, a sub-cover plate, a sub-cover spindle set, a liquid crystal screen, a trumpet set, and a sound control button set; a keyboard including a keyboard body, an light emitting set, and a main control button. The cover and uncover operations of the keyboard cover are performed by the main spindle set and sub-cover spindle set to drive the main cover plate and sub-cover plate and the main control button severs to control the liquid crystal screen, trumpet set, and sound control button set; and the light emitting set is installed below the keyboard body. Or the cover and uncover operations of the keyboard cover are manually operated, and the main spindle set and the sub-cover spindle set serves to connect the main cover plate sub-cover plate and the keyboard.

Abstract: An LED keyboard of a notebook computer comprises a plurality of interlaced slots, each having a cluster of retaining holes. Roughly at the center of the cluster of retaining holes, there is a flexible body wherein a light-emitting body is installed. Each of the light-emitting bodies has a set of conducting feet extended thereunder, which is kept at a distance from a base. The base further includes a conducting film and a plurality of retaining rings. A scissored foot set is mounted above within each of the slots, having a key cap mounted on the scissored foot set. Thereby, as the key cap is stroked, the scissored foot set will shift downward and the conducting feet will contact with a copper-foil wire on the conducting film, activating the light-emitting body. As the key cap is not stroked, the flexible body will restore the original configuration.

Abstract: A bandgap reference circuit having a low sensitivity to temperature and supplied voltage installs a compensation circuit on a bandgap reference circuit to substitute a prior art that uses a resistor to match the circuit startup purpose and solve the problem of startup error caused by the manufacturing error. The bandgap reference circuit includes a first amplifier, a second amplifier, and a reference circuit having a plurality of transistors and a plurality of bipolar junction transistors, and the bandgap reference circuit is electrically connected to a same supplied power of which the reference circuit is electrically connected and also includes a plurality of transistors and a compensation circuit of the second amplifier, so as to output a stable startup voltage which has a low sensitivity to the change of temperature and the change of supplied voltage.

Abstract: An LED keyboard of a notebook computer comprises a plurality of interlaced slots, each having a cluster of retaining holes. Roughly at the center of the cluster of retaining holes, there is a flexible body wherein a light-emitting body is installed. Each of the light-emitting bodies has a set of conducting feet extended thereunder, which is kept at a distance from a base. The base further includes a conducting film and a plurality of retaining rings. A scissored foot set is mounted above within each of the slots, having a key cap mounted on the scissored foot set. Thereby, as the key cap is stroked, the scissored foot set will shift downward and the conducting feet will contact with a copper-foil wire on the conducting film, activating the light-emitting body. As the key cap is not stroked, the flexible body will restore the original configuration.

Abstract: A keyboard includes a housing having a number of cavities to slidably receive shanks of a number of key pads, and a light device for lighting the key pads. The lighting device includes a number of light members engaged in the shanks of the key pads, the housing includes two conductive projections extended into each of the cavities to selectively engage with terminals of the light members, and to energize the light members when the key pads are depressed by the users. A spring biasing device may bias the key pad to disengage the terminals of the light members from the conductive projections.

Abstract: A bandgap reference circuit having a low sensitivity to temperature and supplied voltage installs a compensation circuit on a bandgap reference circuit to substitute a prior art that uses a resistor to match the circuit startup purpose and solve the problem of startup error caused by the manufacturing error. The bandgap reference circuit includes a first amplifier, a second amplifier, and a reference circuit having a plurality of transistors and a plurality of bipolar junction transistors, and the bandgap reference circuit is electrically connected to a same supplied power of which the reference circuit is electrically connected and also includes a plurality of transistors and a compensation circuit of the second amplifier, so as to output a stable startup voltage which has a low sensitivity to the change of temperature and the change of supplied voltage.

Abstract: A keyboard includes a housing having a number of passages formed by cylindrical members, a number of keys each having a shank slidably engaged in the passages of the housing, and an electromagnetic floating force generating device having a number of coils arranged to generate electromagnetic floating force and to float the keys relative to the housing. A number of magnets may be attached onto the keys and acted with the coils, to allow the keys to be floated by the electromagnetic floating force generated by the coils or the magnets. One or more fan devices may be disposed in the housing to circulate air through the keys.

Abstract: An internal circuit structure of a semiconductor chip with array-type bonding pads. The semiconductor chip has a plurality of bonding pads located about periphery of the semiconductor chip, a plurality of signal circuit macros being positioned inside the bonding pads of the semiconductor chip, and an electro-static discharge clamping circuit ring between the signal circuit macros and the inner row of the bonding pads. The bonding pads are positioned in at least four rows along each side of the semiconductor chip, in which the four rows has an inner row, a mid-inner row, a mid-outer row, and an outer row. The inner row and the mid-inner row of the bonding pads consist of signal pads, and the outer row and the mid-outer row of the bonding pads consist of power pads and ground pads. Each of the signal circuit macros is positioned to align to the corresponding bonding pads.