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| Number | Title | Issue Date |
| 8174484 | Signal processing circuit and method 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... | 05/08/2012 |
| 8170822 | Compensation method for touch sensor system A compensation method devoid of operating voltage calibration, establishing fundamental linearity calibration table and inputting, and detecting the actual operating voltage is disclosed. The compensation method comprises the steps of: a) turning off a switch in a t... | 05/01/2012 |
| 8169204 | Active current limiting circuit and power regulator using the same The present invention mainly relates to a current limiting circuit, also known as over-current protection circuit, and a power regulator using the same. The purpose for the circuit is to protect the power device and the loading circuit for the power regulator. The c... | 05/01/2012 |
| 8106606 | Voltage multiple dimming control apparatus The present invention discloses a control apparatus, which not only accepts multiple dimming control signals, but also combines the signals in analog manner. By means of this, an inevitable analog to digital converter in a conventional voltage multiple dimming contr... | 01/31/2012 |
| 8090070 | Synchronizing device for USB real-time audio data transmission The present invention discloses a synchronizing device for real-time USB audio data transmission, comprising: a first adder unit, a start-of-frame countdown unit, a phase-locked loop circuit, a frequency divider, a second adder unit, a third adder unit, a fourth add... | 01/03/2012 |
| 8089743 | Voltage regulator having active foldback current limiting circuit The present invention mainly relates to a voltage regulator, comprising: a P typed power MOS; a feedback circuit; a differential amplifier; a protecting circuit having a N-typed transistor current mirror; and an active foldback current limiting circuit rather than u... | 01/03/2012 |
| 8076919 | Switch-mode power supply Disclosed is a Power Factor Correction Controller, which comprises a boost converter, a current sensing unit, an arithmetic unit, and a switch driving unit. The current sensing unit can sense or derive the current that pass through the energy delivery device, which ... | 12/13/2011 |
| 8040193 | Oscillation adjusting circuit and method An oscillation tuning circuit is provided and includes a first circuit. The first circuit receives an input data stream with a known time interval, producing a first output signal having a first period, determines a first error signal representing a difference betwe... | 10/18/2011 |
| 7974348 | Two-wire serial handshaking communication interface and method thereof A two-wire serial handshaking communication interface and a method thereof is provided for a transmission of a data bit representative between a first transmitting component and a second transmitting component, wherein the first transmitting component includes a fir... | 07/05/2011 |
| 7940876 | USB frequency synchronizing apparatus and method of synchronizing frequencies A universal series bus (USB) frequency synchronous apparatus using a start of frame (SOF) signal generated by a master device to mark a reference interval is disclosed. The frequency synchronizing apparatus includes a frequency divider, a counter unit with a default... | 05/10/2011 |
| 7872509 | Delay lock loop and phase angle generator The provided delay lock loop delaying an input signal includes a quadrature generator, a voltage controller and a delay cell. The input signal is inputted into the quadrature generator and the delay cell. A phase-changing signal from the quadrature generator and a d... | 01/18/2011 |
| 7863879 | AC signal producer and method thereof An AC signal producer comprises a controlling unit, a Class-D switch circuit, and a low-pass filter. The control unit receives a DC signal and produces a PWM control signal via checking reference tables. The Class-D switch circuit receives the PWM control signal and... | 01/04/2011 |
| 7859812 | Power IC with an over-current protection circuit and method thereof A power IC with an over-current protection receives an input voltage and converts the input voltage into an output voltage to a load. The present invention controls a power transistor to provide an output current to the load, and uses the output control unit to cont... | 12/28/2010 |
| 7816957 | Power on reset generating circuit and method thereof The invention mainly relates to a power on reset signal generating circuit and method thereof wherein said reset signal remains as a constant being independent of rising or descending power or repeated switching. The power on reset signal circuit can be implemented ... | 10/19/2010 |
| 7800392 | Detection control circuit for anti-leakage The present invention discloses a detection control circuit for preventing a leakage current, which comprises a register unit comprising a clock signal input terminal for receiving a clock signal; a reset signal input terminal, for receiving a reset signal; a signal... | 09/21/2010 |
| 7800025 | Apparatus for controlling an electrical cooker and related method thereof The present invention provides a micro-control unit a RC oscillator for generating a reference clock, a plurality of touch switches for generating a transition signal indicating one of the touch switches being touched by human beings, a plurality of analog switches ... | 09/21/2010 |
| 7777555 | Temperature compensating circuit and method A temperature compensating circuit including a reference circuit, a transistor and a first circuit is provided. The reference circuit has a reference current and a resistance circuit, wherein the resistance circuit includes a first terminal receiving the reference c... | 08/17/2010 |
| 7764200 | Capacitive button device The present invention discloses a capacitive button device, comprising: a signal input unit, a first amplifier, a first switching unit, a second amplifier, a second switching unit, an analog-to-digital converting unit, a third switching unit, a data output unit, a d... | 07/27/2010 |
| 7714673 | Control method for operation modes of oscillator and the apparatus thereof The present invention relates to a control method for the operation modes of an oscillator and the apparatus thereof, for which the method and the apparatus can be applied to the electronic circuits with multi-operation modes of the oscillator so as to correctly cho... | 05/11/2010 |
| 7671669 | Device and method for reducing input noise A device and a method for reducing input noise providing at least a microcontroller. The microcontroller comprises: at least a noise reduction device, at least an analog switch and at least a signal output unit. The noise reduction device connected to the ground or ... | 03/02/2010 |
| 7669025 | Apparatus for security of accessing data and method of the same The present invention provides an apparatus for security of accessing data, comprising a storage device including an address transform detector, a first lock bit register and a data comparator, the address transform detector providing a predetermined correction sign... | 02/23/2010 |
| 7663425 | Fuse option circuit A fuse option circuit including a fuse, a control switch, a latch, and a logical operational controller is provided. The latch stores a selected level. The logical operational controller outputs a selected result signal and feedbacks a control signal to the control ... | 02/16/2010 |
| 7656737 | Pumping circuit for multiple nonvolatile memories A pumping circuit for multiple nonvolatile memories, comprising: a high voltage source; and a high voltage pass block with a gate controlled by a local booster to introduce the high voltage source into a plurality of nonvolatile memories for erase/write operation. | 02/02/2010 |
| 7642838 | Voltage redoubling circuit A voltage redoubling circuit, wherein said circuit relies on a voltage-detecting unit, an oscillating unit, an inversing unit, a first switching device, a second switching device, a third switching device, a fourth switching device, and a fifth switching device to p... | 01/05/2010 |
| 7639074 | Linear programmable switch-capacitance gain amplifier A linear programmable switch-capacitance gain amplifier (PGA) is described. The PGA divides the dB-gain curve into several parts by the concept of piece-wise linearity, and then simultaneously executes the dB-linear gain adjustment of MSB and the LSB at the same gai... | 12/29/2009 |
| 7636014 | Digitally programmable transconductance amplifier and mixed-signal circuit using the same The present invention relates to an trans-conductance amplifier, cooperating with a digital programmable current mirrors, can be applied to digital programmable current-mode integrated circuits, voltage control oscillators, adaptive frequency adjust mechanism, adapt... | 12/22/2009 |
| 7629758 | Driving apparatus and a driving method for a single phase motor A driving apparatus and a driving method for a single phase motor utilizes a driving transistor unit, and an auxiliary driving transistor unit to provide two driving currents with the same direction as the single phase coil. Next, a control unit is used to control t... | 12/08/2009 |
| 7612581 | Apparatus for dynamic deployment of pin functions on a chip An apparatus for dynamic deployment of pin functions on a chip is disclosed in the present invention. The apparatus comprises: an input pin receiving unit, capable of integrating a plurality of pins and selecting pin functions according to a program; an output pin c... | 11/03/2009 |
| 7612548 | Low drop-out voltage regulator with high-performance linear and load regulation A low drop-out voltage regulator with high-performance linear and load regulation, comprising: a reference voltage circuit, capable of providing a reference voltage; a differential amplifier; a power device, capable of driving a load resistor; a feedback circuit, di... | 11/03/2009 |
| 7579889 | Delay lock loop and phase angle generator The provided delay lock loop delaying an input signal includes a quadrature generator, a voltage controller and a delay cell. The input signal is inputted into the quadrature generator and the delay cell. A phase-changing signal from the quadrature generator and a d... | 08/25/2009 |
| 7495639 | Driving method of light emitting diode A power-saving and efficient driving method for driving a matrix of light emitting diodes arrayed in rows and columns. The method comprises the steps of: (A) executing the phases of Dis-Charge, Pre-Charge, Current On and Dis-Charge in successive for an active column... | 02/24/2009 |
| 7453762 | Apparatus and method of auto frequency calibration for transducer An apparatus for automatically calibrating a transducer are disclosed in the present invention, the apparatus comprising: an oscillator, for generating a system frequency; a micro controller, being coupled to the oscillator, for receiving the system frequency; a cou... | 11/18/2008 |
| 7423478 | Input offset voltage corrector 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 offse... | 09/09/2008 |
| 7356141 | Baud rate modulation encoding/decoding method and device for remote controller A encoding/decoding method and device for a remote controller utilizing a baud rate to encrypt data for transmission. The encoding device includes an encoder encoding an identification code into an encrypted code; and an interpreter interpreting the un-encoded porti... | 04/08/2008 |
| 7355152 | Power control apparatus and method for electric cookers 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 re... | 04/08/2008 |
| 7348817 | Circuit and method for generating circuit power on reset signal Disclosed is an improved circuit and method for generating a power on reset signal, the circuit being a two-stage circuit comprising a delay-stage circuit and an output-stage circuit. The delay-stage circuit delays a time for a power on reset signal generated in the... | 03/25/2008 |
| 7339480 | Power processing interface for passive radio frequency identification system A power processing interface for a radio frequency identification system is provided. The power processing interface includes a resonance circuit for inducing a first signal transmitted from a terminal as an AC voltage, a first rectifier circuit electrically connect... | 03/04/2008 |
| 7330802 | Method for calibrating parameter of integrated circuit A method for calibrating a parameter of an IC, using an external device so as to calibrate an analog control parameter of an internal analog circuit in the IC. The external device is used in a detecting mode so as to detect whether the analog control parameter is be... | 02/12/2008 |
| 7315216 | Adjusting frequency device of built-in oscillator for USB interface and method thereof An adjusting frequency device of built-in oscillator for USB interface and a method thereof are described. It is Auto detect the error of bit-rate between the USB host and the USB device, and produce tiny counting time for clocking the clock error between the USB ho... | 01/01/2008 |
| 7183869 | Circuit and method for temperature compensation In the present invention, a temperature compensation circuit is provided. The temperature compensation circuit includes a first oscillator for providing a first clock signal, a timer electrically connected to the first oscillator for clocking a specific time period,... | 02/27/2007 |
