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: A multimedia playing method is provided. First, N audio files selected by a user are received, wherein N>0. Then, the memory space required for playing each of the N audio files for a predetermined time is respectively detected. Next, whether total memory space required by the N audio files is not smaller than a predetermined value is determined. If the total memory space required by the N audio files is not smaller than the predetermined value, the predetermined time is reduced and the step of respectively detecting the memory space required for playing each of the N audio files for the predetermined time is executed again. If the total memory space required by the N audio files is smaller than the predetermined value, an initial part of each of the N audio files to be played for the predetermined time is stored into the memory.

Abstract: A load driving apparatus is disclosed. The load driving apparatus includes a driving signal generator and a controller. The driving signal generator is used for providing a driving signal to a load. The controller is used for generating and providing a control signal to the driving signal generator. The driving signal generator generates N integer signals and M fractional signals in a driving period to form the driving signal according to the control signal. N and M are positive integers, and an amplitude of the integer signals is greater than an amplitude of each of the fractional signals.

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: A bistable electro-optic display device and a driving method thereof are provided. The display device includes an overlap detection unit and an overlapping image processing unit. The overlap detection unit compares a first display data and a second display data received by a pixel unit. When a first update region corresponding to the first display data overlaps a second update region corresponding to the second display data, the overlap detection unit outputs an overlapping display data, so as to make a display panel display the first update region and the second update region. The overlapping image processing unit combines the first display data and the second display data according to the comparison result and an overlapping display mode to output the overlapping display data to the overlap detection unit, wherein the overlapping display mode indicates the display priority of the first display data and the second display data.

Abstract: A driving device and a driving method for a bistable electro-optic display are provided. The driving device includes an image processing unit, a display process module, and a scheduling module. The image processing unit receives a first update region of a display area to produce a first region update data. The display process module updates the display area according to the first region update data. During an update period for the first update region, the image processing unit can continue to receive at least one second update region, so as to produce a plurality of second region update data. After the first region is completely updated, the scheduling module controls the display process module to update the display area according to the second region update data, so as to shorten the time for updating the display area.

Abstract: A lighting device driving apparatus, a lighting device driving system, and a driving method thereof are provided. The lighting device driving system includes a signal generation unit and N lighting device driving apparatuses. The signal generation unit generates a serial data flow, wherein the serial data flow includes at least N data frames. The 1st lighting device driving apparatus is coupled to the signal generation unit, and the ith lighting device driving apparatus is coupled to the (i+1)th lighting device driving apparatus. A signal processing unit of the lighting device driving apparatus detects identification codes of the data frames to receive control data of the ith data frame and adjusts the identification code of the ith data frame into a non-standard data format. Thereby, the lighting device driving system can receive the control data without any address and reduce interference to the serial data flow.

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 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 light-emitting device driving circuit and a method thereof are provided. A terminal of a light-emitting device is coupled to a supply voltage and a cathode of a diode via an inductor, and the other terminal is coupled to an anode of the diode. The light-emitting device driving circuit includes a switch, a current-sensing circuit, and a switch control circuit. The current-sensing circuit is coupled to the anode of the diode via the switch to determine whether or not to generate a turning-off control signal according to a conducting-current value of the switch. The switch control circuit controls an on/off state of the switch, and turns off the switch according to the turning-off control signal. Besides, the switch control circuit compares the conducting-current value with a reference-current value to generate a comparing result to dynamically adjust a time length of turning off the switch accordingly.

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: An apparatus and a method for estimating noise power in frequency domain are provided. The apparatus and the method are applied to a state where no packet is transmitted over the channels. And the apparatus and the method acquire noise in every sub-carrier, and obtain the transmission status in every sub-channel to adjust bit-loading in every sub-carrier and improve the spectral-efficiency.

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: 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 data preserving method and a data accessing method for a non-volatile memory are provided. In the data preserving method, a data is checked according to an error correcting code (ECC) to obtain an error bit number of the data. When the error bit number is greater than a threshold, the data is moved from a first memory unit to a second memory unit and is corrected according to the ECC. Thereby, the data stability of the non-volatile memory is improved.

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: 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 constant-current driving circuit includes a first current source, a reference voltage generating circuit and an output signal generating circuit. A terminal of the first current source is coupled to a terminal of a first LED string, wherein the terminal of the first current source has a first voltage. The reference voltage generating circuit is used for generating a reference voltage and comparing the first voltage with a first predetermined voltage to generate a first comparing signal to thereby adjust the reference voltage. The output signal generating circuit is used for outputting an output signal to another terminal of the first LED string and receiving the input signal, wherein the output signal generating circuit decides whether or not to output the input signal serving as the output signal according to the comparison result of the reference voltage with the second voltage.

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: 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.