Abstract: A wireless system includes a local oscillator (LO) signal generation circuit, a receiver (RX) circuit, and a calibration circuit. The LO signal generation circuit generates an LO signal according to a reference clock. The LO signal generation circuit includes an active oscillator. The active oscillator generates the reference clock, wherein the active oscillator includes at least one active component, and does not include an electromechanical resonator. The RX circuit generates a down-converted RX signal by performing down-conversion upon an RX input signal according to the LO signal. The calibration circuit generates a frequency calibration control output according to a signal characteristic of the down-converted RX signal, and outputs the frequency calibration control output to the LO signal generation circuit. The LO signal generation circuit adjusts an LO frequency of the LO signal in response to the frequency calibration control output.

Abstract: A wireless system includes an active oscillator and a front-end circuit. The active oscillator is used to generate and output a reference clock. The active oscillator includes at least one active component, and does not include an electromechanical resonator. The front-end circuit is used to process a transmit (TX) signal or a receive (RX) signal according to a local oscillator (LO) signal. The LO signal is derived from the reference clock.

Abstract: A diplexer, for coupling a first radio frequency (RF) signal corresponding to a first carrier frequency and a second RF signal corresponding to a second carrier frequency is disclosed. The diplexer includes a first port arranged to couple the first RF signal; a second port arranged to couple the second RF signal; a third port capable of connecting an antenna; a first impedance unit coupled to the first port and the third port; and a second impedance unit coupled to the second port and the third port; wherein the first port, the second port and the third port are coupled to a direct current (DC) ground; wherein the first impedance unit is arranged to provide an first open-circuit impedance against the second RF signal, and the second impedance unit is arranged to provide a second open-circuit impedance against the first RF signal.

Abstract: The present invention relates to a driving circuit of LED and a driving method thereof, which comprise a converting circuit and a driving unit. The converting circuit receives a pulse-width modulation (PWM) signal and generates an adjusting current according to the PWM signal. The driving unit receives the adjusting current and generates at least a driving current according to the adjusting current for driving a plurality of LEDs coupled to the driving unit. The magnitude of the driving current is adjusted according to the adjusting current. In addition, the driving unit has a bright-controlling pin used for receiving a control signal having a fixed level.

Abstract: The present invention relates to a driving circuit and a driving method for LED. The driving circuit for LED comprises an inductor used for producing an output current, a power switch coupled to the inductor and used for controlling the inductor to transmit the output current to a plurality of LEDs and drive the plurality of LEDs, an adjusting circuit receiving a PWM signal related to the output current, and a driving unit producing an adjusting impedance value according to the PWM signal. The driving unit generates a switching signal according to the adjusting impedance value. The switching signal switches the power switch and enables the inductor to produce the output current. The driving unit adjusts the frequency of the switching signal according to the adjusting impedance value.

Abstract: A radio-frequency (RF) front-end supporting at least a first and second wireless communication bands includes a mixer arranged for mixing a received signal with a first local oscillation signal when the shared receiver front-end performs the reception operation according to the first wireless communication band, and for mixing the received signal with a second local oscillation signal when the shared receiver front-end performs the reception operation according to the second wireless communication band, wherein the first and second local oscillation signals are different in frequency.

Abstract: The present invention relates to a driving circuit and a driving method for LED. The driving circuit for LED comprises an inductor used for producing an output current, a power switch coupled to the inductor and used for controlling the inductor to transmit the output current to a plurality of LEDs and drive the plurality of LEDs, an adjusting circuit receiving a PWM signal related to the output current, and a driving unit producing an adjusting impedance value according to the PWM signal. The driving unit generates a switching signal according to the adjusting impedance value. The switching signal switches the power switch and enables the inductor to produce the output current. The driving unit adjusts the frequency of the switching signal according to the adjusting impedance value.

Abstract: The present invention relates to a driving circuit of LED and a driving method thereof, which comprise a converting circuit and a driving unit. The converting circuit receives a pulse-width modulation (PWM) signal and generates an adjusting current according to the PWM signal. The driving unit receives the adjusting current and generates at least a driving current according to the adjusting current for driving a plurality of LEDs coupled to the driving unit. The magnitude of the driving current is adjusted according to the adjusting current. In addition, the driving unit has a bright-controlling pin used for receiving a control signal having a fixed level.

Abstract: The instant disclosure relates to a manufacturing method of a porous composite film. The manufacturing method includes processing a first porous film and a second porous film and includes the following steps: providing a pressing unit, a film-shaping unit, and a cooling unit; intersecting the first and second porous films at an angle; stacking the first and second porous films in forming a half-finished porous composite film; pressing the half-finished porous composite film by the pressing unit at a temperature T1 and under a tension S1; relieving the pressing force against the half-finished porous composite film thermally by the film-shaping unit at a temperature T2; and maintaining the half-finished porous composite film at a pre-determined tension by the cooling unit at a temperature T3.

Abstract: A diplexer, for coupling a first radio frequency (RF) signal corresponding to a first carrier frequency and a second RF signal corresponding to a second carrier frequency is disclosed. The diplexer includes a first port arranged to couple the first RF signal; a second port arranged to couple the second RF signal; a third port capable of connecting an antenna; a first impedance unit coupled to the first port and the third port; and a second impedance unit coupled to the second port and the third port; wherein the first port, the second port and the third port are coupled to a direct current (DC) ground; wherein the first impedance unit is arranged to provide an first open-circuit impedance against the second RF signal, and the second impedance unit is arranged to provide a second open-circuit impedance against the first RF signal.

Abstract: A phase locked loop is provided. The phase locked loop includes a detector, a controlled oscillator and a filtering unit coupled between the detector and the controlled oscillator. The detector generates a phase difference signal according to a reference frequency and an oscillation signal. The controlled oscillator generates the oscillation signal according to a filtered signal. The filtering unit filters the phase difference signal to generate the filtered signal, and the filtering unit has a high frequency filter of which a pole is greater than the reference frequency and less than a frequency of the oscillation signal.

Abstract: A radio-frequency (RF) front-end supporting at least a first and second wireless communication bands includes a mixer arranged for mixing a received signal with a first local oscillation signal when the shared receiver front-end performs the reception operation according to the first wireless communication band, and for mixing the received signal with a second local oscillation signal when the shared receiver front-end performs the reception operation according to the second wireless communication band, wherein the first and second local oscillation signals are different in frequency.

Abstract: The instant disclosure relates to a manufacturing method of a porous composite film. The manufacturing method includes processing a first porous film and a second porous film and includes the following steps: providing a pressing unit, a film-shaping unit, and a cooling unit; intersecting the first and second porous films at an angle; stacking the first and second porous films in forming a half-finished porous composite film; pressing the half-finished porous composite film by the pressing unit at a temperature T1 and under a tension S1; relieving the pressing force against the half-finished porous composite film thermally by the film-shaping unit at a temperature T2; and maintaining the half-finished porous composite film at a pre-determined tension by the cooling unit at a temperature T3.

Abstract: Disclosed is an apparatus and method for generating inverted organic solar cells and which required no electron selective layer, were fabricated and their power conversion efficiency was found to improve irreversibly with post-processing light soaking for a period. X-Ray photoelectron spectroscopy characterization further revealed segregation in surface composition at the interface and was found to explain the current density-voltage measurements. In addition, the light soaked devices were found to exhibit an extended lifetime as compared to conventional devices. Since no electron selective layer was required, light soaking may be considered as a cost-effective method to achieve efficient inverted organic solar cells.

Abstract: A semiconductor circuit is provided. The semiconductor circuit includes a metal layer, a conductive layer disposed under the metal layer and a semiconductor device disposed under the conductive layer. The metal layer forms an inductor device. The semiconductor device is coupled to the inductor device.

Abstract: A phase locked loop is provided. The phase locked loop includes a detector, a controlled oscillator and a filtering unit coupled between the detector and the controlled oscillator. The detector generates a phase difference signal according to a reference frequency and an oscillation signal. The controlled oscillator generates the oscillation signal according to a filtered signal. The filtering unit filters the phase difference signal to generate the filtered signal, and the filtering unit has a high frequency filter of which a pole is greater than the reference frequency and less than a frequency of the oscillation signal.

Abstract: The present invention discloses a physiological test device, which is used to test multiple physiological parameters in vitro and able to indicate the current test item with lights, sounds, images, text or a combination thereof lest the user be confused by the multiple functions of the test device or different test results thereof. The present invention can prevent the user from mistaking the test type or test result, and thus can overcome the conventional problems that the multiple functions of a single test device confuse the user. Thus, the user will not take a wrong test piece or obtain a wrong test result.

Abstract: A wireless network device has a signal detection function and a switching method for the same. A wireless network signal detection module is installed in the wireless network device, and is switched to a wireless network interface card mode or a wireless network signal detection mode after the voltage regulator in the device determines the load voltage. So that the versatile wireless network device is formed to detect the wireless network signal without the PC's help. The steps of switching to the signal detection mode are inclusively detecting the load voltage, switching to the wireless network signal detection mode, scanning the wireless network signal, and finally showing a result in a plurality of manners.

Abstract: A wireless network device is provided for switching into a first functional mode and a second functional mode according to the source of received power. The wireless network device includes a wireless network communication module, a processor, a power module, and a voltage regulator. The wireless network communication module is utilized for transceiving wireless network signal, and the processor is connected to the wireless network communication module. The power module selectively receives a power from one of a battery and a computer. The voltage regulator is connected to the processor, for selectively switching into the first functional mode when receiving the power form the battery, or switching into the second functional mode when receiving the power from the computer.

Abstract: A wireless network device has a signal detection function and a switching method for the same. A wireless network signal detection module is installed in the wireless network device, and is switched to a wireless network interface card mode or a wireless network signal detection mode after the voltage regulator in the device determines the load voltage. So that the versatile wireless network device is formed to detect the wireless network signal without the PC's help. The steps of switching to the signal detection mode are inclusively detecting the load voltage, switching to the wireless network signal detection mode, scanning the wireless network signal, and finally showing a result in a plurality of manners.