Patent application number | Description | Published |
20080252503 | Digital to Analog Converter with High Driving Capability - A digital-to-analog converter with high driving capability includes a voltage generator for generating voltages, a voltage division circuit coupled to the voltage generator for outputting a plurality of reference voltages according to voltages generated by the voltage generator, a decode unit for decoding a digital signal, a switch circuit coupled to the voltage division circuit and the decode unit for switching to output one of the plurality of reference voltages, and a current generator coupled to the voltage division circuit for generating currents to the voltage division circuit. | 10-16-2008 |
20080278232 | Operational Amplifier with Rail-to-Rail Common-mode Input and Output Range - An operational amplifier with a rail-to-rail common-mode input and output range comprises a differential input stage consisting of a first differential pair and a second differential pair for receiving an input signal; a summing circuit coupled to the differential input stage for outputting a summation result of the output signals of the first differential pair and second differential pair; and a push-pull output stage coupled to the summing circuit for outputting an amplified signal comprising an output terminal for outputting the amplified signal, a source coupled transistors for generating a control voltage according to output current of the summing circuit, and a first output transistor and a second output transistor for controlling current of the first output transistor and the second output transistor according to the control voltage of the source coupled transistor. | 11-13-2008 |
20090015297 | SOURCE DRIVER WITH CHARGE SHARING - A source driver includes four output switches, two resistors, and a charge-sharing switch. The first output switch and the first resistor are coupled in series to a first output channel of the source driver. The second output switch and the second resistor are coupled in series to a second output channel of the source driver. The third output switch is coupled in parallel to the first output switch. The fourth output switch is coupled in parallel to the second output switch. The charge-sharing switch is coupled between the first resistor and the second resistor. The third output switch and the fourth output switch are controlled to adjust the resistance of the output current path of the source driver. | 01-15-2009 |
20100188374 | DRIVING METHOD FOR LIQUID CRYSTAL DISPLAY DEVICE AND RELATED DEVICE - A driving method for a Liquid Crystal Display (LCD) device is used for reducing power consumption of the LCD device. The driving method includes determining a driving approach of the LCD device, and performing corresponding charge sharing on a plurality of data channels according to the driving approach. The driving approach of the LCD device is determined according to a latch data (LD) signal and a polarity signal. | 07-29-2010 |
20100295697 | MULTIMEDIA DEVICE, REMOTE CONTROL DEVICE AND MULTIMEDIA SYSTEM - A multimedia device is disclosed. The multimedia device includes an operating circuit, a wireless receiver for wirelessly receiving a touch signal, a function determining unit coupled to the wireless receiver for determining a corresponding function and generating a determination result according to the touch signal, and a control unit coupled to the operating circuit and the function determining unit for controlling the operating circuit to perform the function according to the determination result. | 11-25-2010 |
20110018802 | Remote Control Device and Multimedia System - A remote control device for a multimedia device includes a housing, a touch pad placed on a plane of the housing and comprising a dedicated touch area, a signal determination unit placed inside the housing and coupled to the touch pad for generating an indication signal corresponding to an output effect when the dedicated touch area receives a touch signal, and a wireless transmitter placed inside the housing and coupled to the signal determination unit for wirelessly transmitting the indication signal to the multimedia device to control the multimedia device to reach the output effect. | 01-27-2011 |
20110040563 | Voice Control Device and Voice Control Method and Display Device - A voice control device for a display device includes a voice receiver for receiving a voice signal, a voice recognition unit coupled to the voice receiver for recognizing the voice signal to generate a recognition result, a function decision unit coupled to the voice recognition unit for selecting an operating function from a plurality of operating functions according to the recognition result, and an execution unit coupled to the function decision unit for controlling the display device to perform the operating function. | 02-17-2011 |
20110063031 | DRIVING APPARATUS AND DRIVING METHOD THEREOF - A driving apparatus and a driving method thereof are provided. The driving apparatus includes a digital to analog converter and a signal amplifier. The digital to analog converter is used for receiving a digital data and converting the digital data to an analog signal. The signal amplifier is coupled to the digital to analog converter. The signal amplifier is used for receiving the analog signal to generate a driving signal. The signal amplifier also dynamically changes the driving ability of the driving signal according to at least one bit of the digital data. | 03-17-2011 |
20110084918 | Touch Detection Method and Touch Detection Device and Touch Display Device - A touch detection method, for detecting touch events in a touch pad having a plurality of sense sequences arranged as a matrix, includes outputting a plurality of pulse signals to the plurality of sense sequences, detecting voltage differences between adjacent sense sequences of the plurality of sense sequences when receiving the plurality of pulse signals, to generate a plurality of detection results, and determining a status of an touch event according to the plurality of detection results. | 04-14-2011 |
20110089979 | SOURCE DRIVER WITH CHARGE SHARING - A source driver includes an output buffer for outputting a driving signal; a first current path coupled between the output buffer and a data line; and a second current path coupled in parallel to the first current path. During a first driving period, the output buffer utilizes both the first current path and the second current path to drive the data line. During a second driving period, the output buffer utilizes only the first current path to transmit the driving signal so as to improve the stability of the source driver. | 04-21-2011 |