Abstract: A voltage converting apparatus is disclosed. The voltage converting apparatus mentioned above includes an error comparator. The error comparator receives a feedback voltage and a reference voltage and generates a control signal according to the feedback voltage and the reference voltage. Moreover, the error comparator includes a differential pair, a first current source, and an offset voltage controlling circuit. The offset voltage controlling circuit receives a ramp enabling signal and adjusts a bias current flowing through at least one of a first and a second output terminal of the differential pair according to the ramp enabling signal.

Abstract: A position method for a touch device is provided. In the position method, first, a controller is provided to set a boundary region on a touch panel of the touch device. When a touch medium touches the touch panel, the controller detects whether a peak capacitance detection differential value of a plurality of capacitance detection differential values is occurred in the boundary region. Besides, the controller performs an interpolation calculation to obtain a coordinate of a touch point for the touch medium according to the peak capacitance detection differential value and a first adjacent capacitance detection differential value which is adjacent to the peak capacitance detection differential value.

Abstract: An oversampling data recovery circuit for a receiver comprises a plurality of sampling circuits for sampling an input data upon a plurality of clocks to generate a plurality of sample data, respectively, an edge detector for determining an edge of the input data by monitoring the plurality of sample data, and a state machine for selecting one from the plurality of sample data as an output data of the oversampling data recovery circuit according to the edge of the input data, such that the receiver will have an optimum timing margin.

Abstract: A touch panel is disclosed. The touch panel mentioned above includes at least a touching detection column and a touching detection module. The detection column includes N first touching detection units, N is a positive integer. Each of the first touching detection units transfers a first capacitance varying value according to an area cover by a touching point. The touching detection module operates a differential operating on the first capacitance varying values from two of the first touching detection units which is disposed adjoining in sequential for obtaining a capacitance varying order distribution. The touching detection module obtains a number of at least one first touching point and coordinates thereof by calculating the capacitance varying order distribution.

Abstract: A low temperature coefficient oscillator including a current generator, a first and a second voltage generator, an amplifier, a resistor, a switch, a capacitor and an oscillating unit is provided. The current generator generates a first through a fourth current according to a control signal. The first voltage generator generates a first voltage according to the first current. The second voltage generator generates a second voltage according to the second current and a frequency signal. The amplifier generates the control signal according the first and second voltages. The resistor is coupled between a first terminal of the switch and ground, and a first terminal thereof receives the third current. The switch is conducted or not according the frequency signal. The capacitor is coupled between a second terminal of the switch and ground. The oscillating unit generates the frequency signal according to the fourth current and a voltage of the capacitor.

Abstract: A touch sensor with a sliding structure is disclosed. The touch sensor includes a first touch detecting plate, a second touch detecting plate, and a capacitance-to-digital converter. The first touch detecting plate includes a first tilt portion, and the second touch detecting plate includes a second tilt portion, wherein a bevel edge of the second tilt portion is parallel to a bevel edge of the first tilt portion. The first touch detecting plate and the second touch detecting plate form a parallelogram slide detecting area. The first touch detecting plate transmits a first detected capacitance, and the second touch detecting plate transmits a second detected capacitance. The capacitance-to-digital converter generates a sliding state detected value according to the first detected capacitance and the second detected capacitance.

Abstract: A capacitance interface circuit is provided. An external inductive capacitor is divided into a variable portion and an invariable portion. The capacitance of an internal adjustable capacitor is designed to be equal or close to the fixed capacitance of the external inductive capacitor. The internal adjustable capacitor is used for storing charges having a polarity opposite to that of the invariable portion of the external inductive capacitor in order to neutralize the effect of the invariable portion of the external inductive capacitor. Thus, a charge converter composed of a fully-differential amplifier and feedback capacitors needs only work on the variable portion of the external inductive capacitor, and accordingly the accuracy in subsequent data processing is increased.

Abstract: A voltage converter including a first transistor, a second transistor, an inductor and a control module is provided. The first transistor has a source terminal receiving an input signal, and a body terminal receiving a first bias voltage. The second transistor has a drain terminal coupled to a drain terminal of the first transistor, a source terminal coupled to ground, and a body terminal receiving a second bias voltage. The inductor has a first terminal coupled to the drain terminal of the first terminal and a second terminal generating an output voltage. The control module is coupled to a gate terminal of the first transistor and a gate terminal of the second transistor for controlling conducting states of the first transistor and the second transistor.

Abstract: An integrated memory control apparatus including a first interface decoder, a second interface decoder and an interface controller is provided. Wherein, the first interface decoder is coupled to a control chip through a first serial peripheral interface (SPI), the second interface decoder is coupled to a micro-processor unit through a general transmission interface, and the interface controller is coupled to a memory through a second SPI. When the interface controller receives the request signals from the control chip and the micro-processor unit, the control chip may correctly read data from the memory through the first and second SPI. On the other hand, the micro-processor unit may stop reading data from the memory through the general transmission interface. Therefore, the control chip and the micro-processor unit may share the same memory.

Abstract: A capacitor interface circuit is provided. A capacitor under test (CUT) is divided into a variable portion and an invariable portion, and the capacitance of an offset capacitor is designed to equal to or close to the fixed capacitance of the CUT. The offset capacitor is used to store the charges opposite to the invariable portion of the CUT for neutralizing the effect of the invariable portion of the CUT. Thereupon, the charge converter composed by the fully-differential amplifier and the feedback capacitors only responses for the variable portion of the CUT so as to increase the accuracy of the follow-up data processing.

Abstract: An integrated memory control apparatus including a first interface decoder, a second interface decoder and an interface controller is provided. Wherein, the first interface decoder is coupled to a control chip through a first serial peripheral interface (SPI), the second interface decoder is coupled to a micro-processor unit through a general transmission interface, and the interface controller is coupled to a memory through a second SPI. When the interface controller receives the request signals from the control chip and the micro-processor unit, the control chip may correctly read data from the memory through the first and second SPI. On the other hand, the micro-processor unit may stop reading data from the memory through the general transmission interface. Therefore, the control chip and the micro-processor unit may share the same memory.

Abstract: A position apparatus of a touch device and a position method thereof are provided, wherein the touch device includes a plurality of scan lines. In the position method, a plurality of capacitances in the scan lines are sensed. Next, a plurality of capacitances respectively sensed in an ith scan line of the scan lines and a subset of the scan lines neighboring with the ith scan line are selected. When the capacitance sensed in the ith scan line is larger than each of the capacitances sensed in the subset of the scan lines, the capacitance sensed in the ith scan line is determined as a peak capacitance. Finally, a touch position is calculated according to the peak capacitance and the capacitances sensed in the subset of the scan lines.

Abstract: A method for classifying a network packet includes the steps of: receiving a network packet which includes a plurality of specific data; providing a basic rule table which includes a plurality of basic rules corresponding to the plurality of specific data; providing a composite rule table which includes a plurality of composite rules corresponding the packet classes, and each of the composite rules includes a specific calculation; each of the basic rules generates an output result according to the corresponding specific data; each of specific calculation generates a calculated result of the corresponding composite rule according to part or all of the output results; determining the packet class of the network packet according to the calculated results.

Abstract: An audio amplifier including a differential mode integrator, a first comparator, a second comparator, a logic circuit and a driving unit is provided. The differential mode integrator receives a differential input signal and a differential output signal and outputs a differential mode intermediate signal. The first comparator has a positive input terminal receiving a first terminal signal of the differential mode intermediate signal, a negative input terminal receiving a ramp signal, and generates a first signal. The second comparator has a positive input terminal receiving a ramp signal, a negative input terminal receiving a second terminal signal of the differential mode intermediate signal, and generates a second signal. The logic circuit performs a logic operation on the first and second signals to generate a third signal and a fourth signal. The driving unit generates a differential output signal to drive a load according to the third and fourth signals.

Abstract: A method and an apparatus adapted to a capacitive touch panel for drift compensation are provided, wherein the touch panel includes a plurality of sensors. In the method for drift compensation, a plurality of capacitances respectively sensed by each of the sensors are extracted. Whether the touch panel is in a proximity state is determined upon a slope of the sensed capacitances and a slope parameter. Whether each of the capacitances is drifted is determined upon the capacitance and an allowable noise range. When the touch panel is not in the proximity state and each of the capacitances is drifted, each of the capacitances is compensated according to a drift error of each of the capacitances after a first presetting time has passed.

Abstract: The present invention provides a control device of the memory, which accelerates the memory to execute iterant commands. This control device includes a micro-controller unit, a controller, a block information table and a state machine. Among them, the micro-controller unit is used to issue a command to operate the memory, which contains several blocks. The controller is coupled between the memory and the micro-controller unit. When it determines the command needs not be executed repeatedly, the micro-controller unit would issue the command through the control device. When the command is determined necessary for repetitive execution, the state machine would repeatedly carry out this command. The state machine performs an analysis based on the state of every block in the block information table and executes repetitively the command accordingly. It also updates the state information on the blocks in the table accordingly.

Abstract: A controlling circuit and a controlling method are disclosed. The controlling circuit includes a plurality of switches and a comparator. The first terminals of the switches are respectively coupled to one of a plurality of LED channels. The switches are conducted according to a plurality of switching signals respectively, wherein the switching signals are asserted alternately. The first input terminal of the comparator is coupled to the second terminals of the switches and the second input terminal of the comparator receives a reference voltage for the comparator to compare the voltage of the first input terminal with the voltage of the second input terminal so as to output a comparison result. In this way, whether the LED channels work abnormally or not may be detected. In addition, the hardware cost may also be reduced by employing fewer comparators through a sharing mode.

Abstract: A voltage generating apparatus for a headphone is provided, which includes a voltage generator, a charge pump circuit, an operating amplifier and a controller. The voltage generator generates a first operating voltage. The charge pump circuit receives the first operating voltage and an adjusting signal, and generates a second operating voltage according to the first operating voltage and the adjusting signal. The operating amplifier receives the first operating voltage and the second operating voltage serving as the operating voltages thereof and receives an input signal so as to generate an output signal. The controller receives the second operating voltage and a control signal, and generates the adjusting signal according to the second operating voltage and the control signal.

Abstract: The present invention relates to a color interpolation method for Bayer filter array images. The method first inputs a 3×3 Bayer pattern block with a center pixel. Next, a color filter interpolation case is determined according to the type of the center pixel. Next, Bayer pixel averages and Bayer pixel differences in horizontal and vertical directions of the color filter interpolation case are obtained. Next, missing color components of the center pixel are interpolated in both horizontal and vertical directions. Next, color differences in the horizontal and vertical directions are obtained based on the Bayer pixel differences and averages. Next, a pixel activity of the 3×3 Bayer pixel block is determined. Finally, interpolated color components in the direction of lower color differences are selected, when the pixel activity is high.

Abstract: A low temperature coefficient oscillator including a current generator, a first and a second voltage generator, an amplifier, a resistor, a switch, a capacitor and an oscillating unit is provided. The current generator generates a first through a fourth current according to a control signal. The first voltage generator generates a first voltage according to the first current. The second voltage generator generates a second voltage according to the second current and a frequency signal. The amplifier generates the control signal according the first and second voltages. The resistor is coupled between a first terminal of the switch and ground, and a first terminal thereof receives the third current. The switch is conducted or not according the frequency signal. The capacitor is coupled between a second terminal of the switch and ground. The oscillating unit generates the frequency signal according to the fourth current and a voltage of the capacitor.