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Hung-Sung Li

Hung-Sung Li, Hsinchu County TW

Patent application numberDescriptionPublished
20090021643DIGITAL TELEVISION CHIP, SYSTEM AND METHOD THEREOF - A digital television chip having a reduced layout size is disclosed, comprising a multiplexer, and first and second converting units. The multiplexer, according to a control signal, outputs one of S-video signals SY and SC to the first converting unit, outputs the other of the S-video signals SY and SC to the second converting unit, outputs one of Tuner CVBS signals VIF and SIF to the first converting unit, outputs the other of the Tuner CVBS signals VIF and SIF to the second converting unit, or outputs a CVBS Line-in Video signal to one of the first and second converting units, for reducing the size of the chip. The first converting unit converts one of the S-video signals SY and SC, one of the Tuner CVBS signals VIF and SIF, or the CVBS Line-in Video signal into a first digital signal for signal processing. The second converting unit converts one of the S-video signals SY and SC, one of the Tuner CVBS signals VIF and SIF, or the CVBS Line-in Video signal into a second digital signal for signal processing.01-22-2009
20090289821PIPELINE ANALOG-TO-DIGITAL CONVERTER HAVING OPERATIONAL AMPLIFIER SHARED BY SAMPLE AND HOLD CIRCUIT AND LEADING MULTIPLYING DIGITAL-TO-ANALOG CONVERTER - A pipeline analog-to-digital converter includes a sample and hold circuit; a plurality of multiplying digital-to-analog converters having a leading MDAC coupled to the sample and hold circuit; and an operational amplifier, shared by the sample and hold circuit and the leading MDAC. The shared operational amplifier configured to be used by the sample and hold circuit when the sample and hold circuit enters a hold phase and used by the leading MDAC when the sample and hold circuit enters a sample phase can greatly reduce the power consumption of the pipeline ADC.11-26-2009
20090294944SEMICONDUCTOR DEVICE ASSEMBLY AND METHOD THEREOF - A semiconductor device assembly includes a first semiconductor die, a second semiconductor die, at least one semiconductor package component or another semiconductor die, a first conductive element and a second conductive element. The first semiconductor die includes at least one bonding pad. The second semiconductor die includes a bonding pad module. The first conductive element is coupled between the bonding pad module of the second semiconductor die and the bonding pad of the first semiconductor die, and the second conductive element is coupled between the bonding pad module of the second semiconductor die and the semiconductor package component or the another semiconductor die, wherein the first semiconductor die is coupled to the semiconductor package component or the another semiconductor die via the bonding pad and the bonding pad module and the first and second conductive elements.12-03-2009
20100073209TRACK AND HOLD AMPLIFIERS AND ANALOG TO DIGITAL CONVERTERS - A track and hold amplifier is provided. The track and hold amplifier includes an input node receiving an analog signal, a buffer coupled between a first node and an output node, a first switch coupled between the input node and the first node, a plurality of switching circuits and a voltage generating unit. Each of the switching circuits includes a capacitor coupled between the first node and a second node. The voltage generating unit selectively provides a common signal and a reference signal to the capacitors of the switching circuits, wherein the reference signal is independent from the analog signal and the common signal.03-25-2010
20100117207BOND PAD ARRAY FOR COMPLEX IC - An integrated circuit includes: a substrate; and a bond pad array on the substrate. The bond pad array includes: a row of inner bond pads, each inner bond pad positioned with respect to a plurality of inner pad openings; a plurality of first inner metal layers respectively coupled to the inner bond pads for transmitting signals between the inner pads and an internal circuit, where at least one first inner metal layer has a width less than a width of a corresponding inner bond pad; a row of outer bond pads, staggered with respect to the row of inner bond pads; and a plurality of first outer metal layers respectively coupled to the outer bond pads for transmitting signals between the outer pads and the internal circuit, where at least one inner bond pad overlaps adjacent first outer metal layers.05-13-2010
20100225515TRACK AND HOLD AMPLIFIERS AND ANALOG TO DIGITAL CONVERTERS - A track and hold amplifier is provided. The track and hold amplifier includes an input node receiving an analog signal, a buffer coupled between a first node and an output node, a first switch coupled between the input node and the first node, a plurality of switching circuits and a voltage generating unit. Each of the switching circuits includes a capacitor coupled between the first node and a second node. The voltage generating unit selectively provides a common signal or a reference signal to the capacitors of the switching circuits, wherein the reference signal is independent from the analog signal.09-09-2010

Hung-Sung Li, Sunnyvale, CA US

Patent application numberDescriptionPublished
20100128403System for ESD Protection with Extra Headroom in Relatively Low Supply Voltage Integrated Circuits - An ESD protection system providing extra headroom at an integrated circuit (IC) terminal pad. The system includes an ESD protection circuit having one or more first diodes coupled in series between the supply voltage and terminal pad, and a second diode coupled to ground. One or more third diodes are coupled in series between the terminal pad and second diode, and are configured to permit a voltage on the interconnection nodes between the one or more third diodes and second diode different from ground. The one or more third diodes include an n+ on an area of P-substrate. A deep N-well separates the area of P-substrate from a common area of P-substrate, which is coupled to ground. The allowable signal swing at the terminal pad is increased to greater than supply voltage plus 05-27-2010

Patent applications by Hung-Sung Li, Sunnyvale, CA US

Hung-Sung Li, Hsinchu City TW

Patent application numberDescriptionPublished
20090231037TELESCOPIC OPERATIONAL AMPLIFIER AND REFERENCE BUFFER UTILIZING THE SAME - A telescopic operational amplifier including a current source, an input stage, and a load stage is provided. The input stage is coupled to the current source and includes a group of input transistors for receiving an input voltage. The load stage is coupled to the input stage and includes a group of load transistors for outputting an output voltage. The threshold voltages of the group of input transistors are larger than that of the group of load transistors.09-17-2009

Hung-Sung Li, Hsinchu TW

Patent application numberDescriptionPublished
20080303950VIDEO SIGNAL RECEIVING CIRCUIT - A circuit for reducing ground noise of video signals is provided. The circuit includes a current source, a plurality of resistors, an AC coupling circuit and a subtracting circuit. The resistors are used for outputting a first and second voltage levels corresponding to different voltages provided by the series-connected resistors. The AC coupling circuit is used for receiving a reference ground signal and coupling an AC component of the reference ground signal to generate the reference voltage level. The subtracting circuit is used for subtracting the first and second voltage levels from two video signals, respectively.12-11-2008