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Chi-Ho

Chi Ho Hwang, Seoul KR

Patent application numberDescriptionPublished
20110292261ANALOG-TO-DIGITAL CONVERTER AND DEVICES INCLUDING THE SAME - An analog-to-digital converter including a comparator configured to compare a pixel signal received at a first input terminal of the comparator with a ramp signal received at a second input terminal of the comparator and generate a comparison signal as a result of the comparison; and a ramp signal supply circuit configured to provide the ramp signal to the comparator, wherein the ramp signal supply circuit generates a first signal as part of the ramp signal in response to the comparison signal and a first clock signal being received at the ramp signal supply circuit, wherein a slope of the first signal sequentially changes until the comparison signal makes a transition from one logic level to another and, after the transition, the ramp signal supply circuit generates a second signal as part of the ramp signal, wherein a slope of the second signal sequentially changes, wherein the slope of the second signal is opposite the slope of the first signal.12-01-2011

Chi Ho Kim, Seoul KR

Patent application numberDescriptionPublished
20100137029MULTI-STANDBY TERMINAL AND METHOD FOR REPRODUCING MOBILE BROADCASTING THEREOF - A mobile broadcast reproducing method and a multi-standby terminal permit a terminal to receive broadcasts from different broadcast networks having different standards and even different broadcasting frequencies. The multi-standby terminal communicates with a variety of communication networks preferably includes a plurality of authentication processors and reproduces broadcast signals according to a variety of broadcast communication standards using the authentication processors. The terminal can also compare the a received signal strength indication (RSSI) of different networks and permit the user the option of selecting one of them based on this comparison, or can automatically select the broadcast having stronger RSSI signal.06-03-2010

Chi Ho Shin, Seoul KR

Patent application numberDescriptionPublished
20100319037Method of controlling devices and tuner device - A control method for recording audio/video data streams in a display device of a wireless network comprises transmitting a Give Tuner Device Status message to a tuner device to request status information of the tuner device that senses a record command signal input from a user and transmits A/V data streams to the display device; receiving a response message, Tuner Device Status message, which includes the status information of the tuner device, from the tuner device in response to the Give Tuner Device Status message; transmitting a record on message, which includes the status information of the tuner device, to the source device; and receiving a record status message from the source device in response to the record on message, wherein the response message includes information indicating whether caption information is included in the A/V data streams transmitted from the tuner device to the display device.12-16-2010

Chi-Ho Cha, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090271174EMULATION SYSTEM AND DRIVING METHOD THEREOF - An emulation system includes a first circuit for emulating a first logical part of a device, a second circuit for emulating a second logical part of the device that is different from the first logical part, wherein the first circuit is separate from the second circuit, and a third circuit connecting the first circuit and the second circuit to communicate signals between the first circuit and the second circuit.10-29-2009
20110239035METHOD AND APPARATUS FOR GENERATING A CLOCK SIGNAL AND FOR CONTROLLING A CLOCK FREQUENCY USING THE SAME - A method and a device for generating a clock signal determine a number of pulses to be discarded from each predetermined cycle of a reference clock signal in order to obtain, on average, a target frequency. A masking pattern is created for discarding the number of pulses to be discarded from each predetermined cycle of the reference clock signal. The clock signal, which includes the target frequency, is generated by discarding the number of pulses from the reference clock signal using the masking pattern.09-29-2011

Patent applications by Chi-Ho Cha, Hwaseong-Si KR

Chi-Ho Chang, Taipei County TW

Patent application numberDescriptionPublished
20090243890Multi-lane vehicle detection apparatus - A vehicle detection apparatus adopting microwave sensing schemes for performing the multi-lane vehicle detection is provided in the present invention. According to the present invention, the signal-to-noise ratio (SNR) of the detected reflecting wave is varied within an inconsiderable range so that the provided apparatus may exhibit a unique property which is adoptable for the multi-lane vehicle detection and the precision is unachievable by the existing detectors.10-01-2009

Chi-Ho Chang, Sanxia Town TW

Patent application numberDescriptionPublished
20100156740LEAKY-WAVE DUAL-ANTENNA SYSTEM - The invention discloses a leaky-wave dual-antenna system comprising a transmitting antenna array and a receiving antenna array. The transmitting antenna array comprises plural first microstrips and plural corresponding first differential circuits, and each of the first differential circuit matches the corresponding first microstrip by a L-type matching network; the receiving antenna array comprises plural second microstrips and plural corresponding second differential circuits, and each of the second differential circuit matches the corresponding second microstrip by a L-type matching network. A first end and a second end of each of the first differential circuits are respectively connected to the corresponding first microstrip; a third end and a fourth end of each of the second differential circuits are respectively connected to the corresponding second microstrip.06-24-2010

Chi-Ho Chung, Seoul KR

Patent application numberDescriptionPublished
20090190779METHOD AND APPARATUS TO AUTOMATICALLY CONTROL AUDIO VOLUME - A method includes comparing a magnitude value of an audio signal in a fixed unit section with a target volume level, measuring audio gain in each fixed unit section using specific functions which are each determined to be different according to a ratio of the target volume level to the audio signal magnitude, and providing the measured audio gain to the audio signal in the fixed unit section.07-30-2009

Chi-Ho Kim, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100167496METHOD FOR FORMING DEVICE ISOLATION LAYER OF SEMICONDUCTOR DEVICE AND NON-VOLATILE MEMORY DEVICE - A method for forming a device isolation layer of a semiconductor device or a non-volatile memory device is provided. A method for forming a device isolation layer of a semiconductor device includes: forming trenches having a first predetermined depth by etching a substrate; forming a first insulation layer having a second predetermined depth inside the trenches; forming a liner oxide layer having a predetermined thickness on internal walls of the trenches with the first insulation layer formed therein; and forming a second insulation layer for forming a device isolation layer over the substrate with the liner oxide layer formed therein, wherein the second insulation layer has a lower etch rate than that of the first insulation layer.07-01-2010

Chi-Ho Li, Beijing CN

Patent application numberDescriptionPublished
20090106015Statistical machine translation processing - A method of statistical machine translation (SMT) is provided. The method comprises generating reordering knowledge based on the syntax of a source language (SL) and a number of alignment matrices that map sample SL sentences with sample target language (TL) sentences. The method further comprises receiving a SL word string and parsing the SL word string into a parse tree that represents the syntactic properties of the SL word string. The nodes on the parse tree are reordered based on the generated reordering knowledge in order to provide reordered word strings. The method further comprises translating a number of reordered word strings to create a number of TL word strings, and identifying a statistically preferred TL word string as a preferred translation of the SL word string.04-23-2009

Chi-Ho Yoon, Daejeon KR

Patent application numberDescriptionPublished
20090304462Apparatus for transferring slurry - Provided is an apparatus for transferring slurry, which is used to transfer minerals from the bottom of the sea to the ground; and, more particularly, to an apparatus for transferring slurry, which can efficiently transfer the slurry in the state of a solid-liquid mixture containing the minerals without clogging of a transfer pipe.12-10-2009
20100180972DIMPLES LIFTING PIPE FOR MINING DEEP-SEA MINERAL RESOURCES - Disclosed herein is a lifting pipe which is used in a manganese nodule mining system including a collection device for collecting deep-sea manganese nodules and a lifting pump and which has a structure in which dimples are formed on the surface of the lifting pipe so as to reduce drag so that the lifting pipe is less influenced by flows of ocean current. The dimpled lifting pipe includes dimples that are formed on the outer circumferential surface of the dimpled lifting pipe, so that turbulent flows are generated, thereby reducing drag caused by ocean currents of a deep sea.07-22-2010
20110218685VELOCITY AND CONCENTRATION ADJUSTABLE COUPLING PIPE APPARATUS EQUIPPED BETWEEN LIFTING PIPE AND COLLECTOR - Disclosed herein is a velocity and concentration adjustable coupling pipe apparatus equipped between a lifting pipe and a collector. The apparatus includes a coupling pipe having a lower inlet and an upper outlet which are different in diameter from each other. A seawater inlet pipe passes through a side surface of the coupling pipe to permit inflow of seawater. A slurry flow control valve is provided in the coupling pipe to control the inflow of slurry. A seawater flow control valve is provided in the seawater inlet pipe to control the inflow of the seawater. A first sensor measures concentration of slurry discharged through the upper outlet. A second sensor measures velocity of the discharged slurry. A third sensor measures velocity of slurry introduced into the lower inlet. A control panel controls the opening ratio of each of the slurry and seawater flow control valves.09-08-2011
20110232797FLEXIBLE SHORT PIPE HAVING SHOCK ABSORBING FUNCTION - Disclosed herein is a flexible short pipe having a shock absorbing function. The flexible short pipe has flexibility so as to absorb shocks generated in the longitudinal direction of a lifting pipe (or flexible pipe) and have resistance to a bending load or a torsional load when being wound around a roller. The flexible short pipe includes flanges provided at upper and lower ends thereof to be coupled to a unit lifting pipe or flexible pipe. An inner layer has a curved shape and is provided between the upper and lower flanges to allow slurry, lifted up or discharged by a lifting pump, to flow along the inner layer. An outer layer has a curved shape and surrounds the inner layer. A shock absorbing means is positioned between the inner layer and the outer layer, and absorbs longitudinal force and bending force.09-29-2011

Patent applications by Chi-Ho Yoon, Daejeon KR