Abstract: A signal processing method is provided and includes the following steps. A first synchronizing signal having a synchronizing frequency and a next expected pulse with an expected rising edge is provided. A second synchronizing signal having a selected frequency being within a frequency range is produced when the synchronizing frequency of the first synchronizing signal is out of a frequency range. A third synchronizing signal having a first pulse with a first rising edge is produced when the synchronizing frequency is within the frequency range, wherein the first rising edge is produced at an expected time point. Whether the next expected pulse appears in a period from the expected time point to a certain time point is detected as a detecting result. And a first falling edge of the first pulse is produced based on the detecting result. A picture-field flicker phenomenon of an LCD is eliminated through the method.

Abstract: An integrated circuit is provided. The integrated circuit includes N level shifting devices. Each level shifting device receives a first digital signal and a second digital signal, and includes a first level shifter converting a first voltage of the first digital signal into a third voltage and converting a second voltage of the first digital signal into a fourth voltage, and a second level shifter converting a first voltage of the second digital signal into a fifth voltage and converting a second voltage of the second digital signal into a sixth voltage.

Abstract: The present invention discloses a protection device for a discharge lamp inverter, which is electrically coupled to an inverter outputting at least two opposite-phase powers to drive at least one discharge lamp via at least two power cables. The protection circuit of the present invention comprises the following components: at least two voltage-division units, a detection unit, and a trigger unit. The two voltage-division units are correspondingly electrically coupled to the power cables to obtain the opposite-phase powers and are connected in series at a connection point in the other ends thereof. The detection unit detects the voltage variation of the connection point of the voltage-division units and then generates an abnormal signal. The trigger unit receives the abnormal signal and outputs a protection signal to the inverter to stop outputting power to the discharge lamp.

Abstract: An input offset voltage corrector used in an operational amplifier includes a switch unit, a register unit, an offset voltage correction unit and a micro control unit. The micro control unit sets the register unit to control the switch unit to switch the input offset voltage corrector to different operating modes. If an input offset voltage corrector is set to the offset voltage correcting mode, the offset voltage correction unit will adjust the input offset voltage of the operational amplifier to output an exact signal. Furthermore, the input offset voltage corrector can adjust the input offset voltage anytime according to the operating conditions to maintain the best characteristic of the operational amplifier.

Abstract: A vacuum fluorescent display (VFD) and a filament-driving method are provided. Two sub-dc voltages having peaks respectively interlaced with each other on the waveform thereof are used to drive the filament. A driving circuit is integrated in the integrated circuit of a VFD driver, a VFD controller or a VFD MCU. The VFD is able to operate without utilizing a transformer.

Abstract: An RC oscillator is provided. The oscillator includes an RC selecting switch disposed in an input port of the oscillator, a resistor output port, a capacitor output port, at least a resistor switch with a first end connected to the RC selecting switch and a second end floatingly connected to the resistor output port, and at least a capacitor switch with a first end connected to the RC selecting switch and a second end floatingly connected to the capacitor output port. The second ends of the resistor switch and the capacitor switch are selectively connected to the resistor output port and the capacitor output port respectively for providing different combinations of a resistor output value and a capacitor output value.

Abstract: A method of power control apparatus for electric cookers is provided. In the method, a micro controller unit (MCU) with a programmer pulse generator (PPG) and analog/digital (AID) converters is utilized, wherein a command can be inputted externally to the MCU for restarting or stopping the output of the PPG; and the PPG is capable of outputting pulses of programmable pulse width, being programmed by software for power control and, also, the protection of power control apparatus.

Abstract: An input offset voltage corrector used in an operational amplifier includes a switch unit, a register unit, an offset voltage correction unit and a micro control unit. The micro control unit sets the register unit to control the switch unit to switch the input offset voltage corrector to different operating modes. If an input offset voltage corrector is set to the offset voltage correcting mode, the offset voltage correction unit will adjust the input offset voltage of the operational amplifier to output an exact signal. Furthermore, the input offset voltage corrector can adjust the input offset voltage anytime according to the operating conditions to maintain the best characteristic of the operational amplifier.

Abstract: A driver control circuit and method for a cold cathode fluorescent lamp (CCFL), that the driver control circuit comprises: at least a comparator; at least an input/output port, at least an analog-to-digital converter; at least two programmable pulse generators (PPGs), including a first programmable pulse generator and a second programmable pulse generator, i.e. PPG0 and PPG1, being activated for generating pulse signals in an alternative manner for driving the CCFL; at least a programmable frequency divider (PFD), capable of programming the output thereof to be used as the control signal for activating the PPG0 and the PPG1 according to the alternative manner defined by the transition frequency of the PFD.

Abstract: A power control apparatus for electric cookers includes an input unit, an output unit, a micro controller unit (MCU), having a programmer pulse generator (PPG) and at least an analog/digital converter built therein, a power circuit, an exciter-coil circuit, an output circuit of insulated gate bipolar transistor (IGBT), and a drive circuit of insulated gate bipolar transistor (IGBT). A command can be inputted externally to the MCU for restarting or stopping the output of the PPG and the PPG is capable of outputting pulses of programmable pulse width.

Abstract: A driver control circuit and method for a cold cathode fluorescent lamp (CCFL), that the driver control circuit comprises: at least a comparator; at least an input/output port, at least an analog-to-digital converter; at least two programmable pulse generators (PPGs), including a first programmable pulse generator and a second programmable pulse generator, i.e. PPG0 and PPG1, being activated for generating pulse signals in an alternative manner for driving the CCFL; at least a programmable frequency divider (PFD), capable of programming the output thereof to be used as the control signal for activating the PPG0 and the PPG1 according to the alternative manner defined by the transition frequency of the PFD.

Abstract: A proximity sensing device for judging an operation is provided. The proximity sensing device includes a first sensing area sensing the operation and generating a first signal; and a second sensing area sensing the operation and generating a second signal, wherein if a ratio of the first signal and the second signal is greater than a threshold, the operation is judged as a correct operation.

Abstract: A power control apparatus for electric cookers is disclosed, which comprises: an input unit, for setting parameters of temperature control, power control and timing control, etc.; an output unit, for displaying parameters of temperature, power and timing, etc.

Abstract: A power control apparatus for electric cookers is disclosed, which comprises: an input unit, for setting parameters of temperature control, power control and timing control, etc.; an output unit, for displaying parameters of temperature, power and timing, etc.

Abstract: A display panel supporting device with cushion mechanism comprising a fixed supporting column, a sliding column fitted into the supporting column and arranged to move in sliding manner relative to the fixed supporting column for adjusting the height of the display panel and a cushion mechanism installed between the fixed supporting column and the sliding column and arranged to move synchronously with the sliding column, and the cushion mechanism has the effect of increasing the friction force between the supporting column and the sliding column, and the friction force can remain unchanged even after a long period of use that can improve the function of height adjusting, and prolong the service life of the display panel supporting device.

Abstract: A supporting structure for display panel comprising height adjusting mechanism and slot-sliding angle adjusting mechanism installed on the upper end of the height adjusting mechanism, when the structure is used as supporting device for LCD display panel it will enable the LCD display panel to possess the function of height adjusting and pitching angle adjusting; wherein the slot-sliding angle adjusting mechanism comprises a sliding seat, a supporting guide-block and a torque unit, and has the supporting guide block installed on the upper end of the height adjusting mechanism, the sliding seat and the supporting guide-block assembled together in such a way that the sliding seat can move in sliding manner on and relative to the supporting guide-block so that the pitching angle of the sliding seat can be adjusted by moving the sliding seat along the supporting surface of the supporting guide-block, and by employing the torque unit an appropriate fastening force is provided to hold the sliding seat in the desired

Abstract: The present invention provides a polarizing film with high polarization degree and high transmittance, which is directed to the use of polyvinyl alcohol (PVA)-based film by subjecting to a monoaxial multi-step dry-stretch process, thereafter conducting a swelling process in a water-washing tank, cross-dyeing in a dyeing-crosslinking tank comprising an aqueous iodine containing solution, then subjecting to a post stretch process in an stretch tank 05 comprising PVA crosslinking agent, as to obtaining a polarizing film with a transmittance of at least 43% and a polarization degree of at least 98%; and the producing method thereof, a polarizing plate and an optical component produced from the same.

Abstract: The method and the device thereof for dynamically calibrating a frequency is provided. The method includes steps of: (a) providing a first system frequency; (b) obtaining a first parameter of timer counting number; (c) providing a second system frequency; (d) obtaining a second parameter of timer counting number if there is a frequency drift between said first system frequency and said second system frequency; (e) obtaining a third parameter of timer interrupt interval by comparing said first parameter of timer counting number with said second parameter of timer counting number; and (f) calibrating a frequency output according to said third parameter of timer interrupt interval.

Abstract: An high-frequency signal suppresser includes a resister, a first capacitor, a second capacitor, and a shaping circuit. A high-frequency signal inputted from the input terminal of the high-frequency signal suppresser is filtered by the resister, the first capacitor, and the second capacitor, and then shaped by the shaping circuit so as to generate a logic signal at the output terminal of the high-frequency signal suppresser.

Abstract: The method and the device thereof for dynamically calibrating a frequency is provided. The method includes steps of: (a) providing a first system frequency; (b) obtaining a first parameter of timer counting number; (c) providing a second system frequency; (d) obtaining a second parameter of timer counting number if there is a frequency drift between said first system frequency and said second system frequency; (e) obtaining a third parameter of timer interrupt interval by comparing said first parameter of timer counting number with said second parameter of timer counting number; and (f) calibrating a frequency output according to said third parameter of timer interrupt interval.