Patent application number | Description | Published |
20140182531 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus may include a camshaft, a cam piece having first cams having lift amounts that are different formed at one side thereof, a first cam protrusion portion formed near the first cams that is slidably disposed on the camshaft to rotate with the camshaft, a first guide pin that protrudes on one side of an exterior circumference of the first cam protrusion portion, a first guide that is disposed to correspond to the first cam protrusion portion and in which a first guide groove is formed thereon to move the first cam piece in one direction along the camshaft according to the rotation of the first guide pin, and a first operation portion that moves the first guide toward the first cam protrusion portion such that the first guide pin is inserted into the first guide groove of the first guide. | 07-03-2014 |
20150024887 | HYDRAULIC TIMING CHAIN TENSIONER AND TIMING CHAIN SYSTEM - The present invention relates to a timing chain system including a hydraulic pressure timing chain tensioner autonomously controlling a hydraulic pressure for maintaining tension of a timing chain to effectively operate. The system may include: a crankshaft sprocket; a camshaft sprocket controlling exhaust or intake timing of the engine; a timing chain operably connecting the crankshaft and camshaft sprockets; a chain guide for the timing chain; a chain tensioner pushing the chain guide inward; and an oil supply unit for the chain tensioner. The chain tensioner may include a housing, an operating unit case fixed to the housing, a reciprocating plunger inserted into the operating unit case, a high pressure chamber, a low pressure chamber, a supply hydraulic path supplying oil from the oil supply unit to the low pressure chamber, and a regulator controlling hydraulic pressure of the low pressure chamber. | 01-22-2015 |
20150144083 | ENGINE HAVING VARIABLE VALVE TIMING DEVICE - An engine having a variable valve timing device may include a camshaft having a cam that lifts a valve, a valve body with one side fixed with the camshaft and the other side fixed with a fixed housing, variable wings protruding on an outer circumferential surface of the fixed housing, a sprocket housing forming a delay chamber and an advance chamber with the variable wings and having a sprocket on an outer circumferential surface, a control spool disposed coaxially with the camshaft and inserted in the valve body to selectively supply hydraulic pressure from an outside to the delay chamber or the advance chamber, and an actuator fastened to an outer end of the control spool, with a side fixed to a side of the engine, and advancing or delaying the sprocket housing with respect to the valve body by adjusting the hydraulic pressure supplied to the advance chamber or the delay chamber through the control spool by pulling or pushing the control spool. | 05-28-2015 |
Patent application number | Description | Published |
20140176165 | Apparatus for Three Dimensional Integrated Circuit Testing - A three-dimensional integrated circuit testing apparatus comprises a probe card configured to couple a device-under-test of a three-dimensional integrated circuit with an automatic testing equipment board having a plurality of testing modules, wherein the probe card comprises a plurality of known good dies of the three-dimensional integrated circuit, a plurality of interconnects of the three-dimensional integrated circuit and a plurality of probe contacts, wherein the probe contacts are configured to couple the probe card with testing contacts of the device-under-test of the three-dimensional integrated circuit. | 06-26-2014 |
20140253162 | INTEGRATED CIRCUIT TEST SYSTEM AND METHOD - A system for testing a device under test (DUT) includes a probe card and a test module. The probe card includes probe beds electrically coupled to a circuit board and a first plurality of electrical contacts coupled to the circuit board, which are for engaging respective ones of a plurality of electrical contacts of a test equipment module. Probes are coupled to respective probe beds and are disposed to engage electrical contacts of the DUT. The probe card includes a second plurality of electrical contacts coupled to the circuit board. The first and second pluralities of contacts are mutually exclusive. The test module includes a memory, a processor, and a plurality of electrical contacts electrically coupled to respective ones of the second plurality of electrical contacts of the probe card. The circuit board includes a first electrical path for electrically coupling the test equipment module to the test module. | 09-11-2014 |
20150241508 | Test Circuit And Method - A circuit is disclosed that includes a signal-forcing path, a discharging path, a contact probe, a monitoring probe and a switch module. The signal-forcing path is connected to a signal source. The discharging path is connected to a discharging voltage terminal. The contact probe contacts a pad module of an under-test device. The monitoring probe generates a monitored voltage associated with the pad module. The switch module is operated in a discharging mode to connect the contact probe to the discharging path when the monitored voltage does not reach a threshold voltage such that the under-test device is discharged and is operated in an operation mode to connect the contact probe to the signal-forcing path when the monitored voltage reaches the threshold voltage such that a signal generated by the signal source is forced to the under-test device. | 08-27-2015 |
Patent application number | Description | Published |
20090075276 | High throughput mutation screening methods and kits using a universalized approach - differential sequence fill-in (dsf)-enabled sequential adapter ligation and amplification - This disclosure teaches high throughput mutation screening methods allowing simultaneous analysis of multiple genetic regions of interest and sensitive detection of very low frequency mutation(s) by the use of a universalized approach. Methods comprise treating RNA:DNA heteroduplexes of interest with a ribonuclease, sequence extension by an RNA-primed DNA polymerase, ligation with a blocking adapter, and differential sequence fill-in followed by single-strand-specific nuclease digestion to permit full-length sequence extension and subsequent ligation with a tagged reporter adapter solely in mutants filled in with a complementary deoxyribonucleotide triphosphate. By forming tagged mutant-dual adapter hybrids or mutant-triple adapter hybrids, the detection and/or quantification of mutants may be directed to the commonly shared tag(s) or flanking adapter sequences for signal detection/enhancement or sequence amplification in all different mutants regardless of the source or the number of mutations involved, thereby avoiding the tremendous effort of multiple target-specific sequence amplifications. Methods may be performed wholly or partially in solution, on solid phase media, in large scale, adapted for automated or semi-automated analysis, and any combinations thereof. | 03-19-2009 |
20120003638 | KIT FOR HIGH THROUGHPUT MUTATION SCREENING METHODS - One example embodiment includes a kit to execute a method of simultaneously screening for genetic mutations in different genes in a multitude of samples. The kit includes an antisense deoxyribonucleic acid (DNA) probe, where the antisense DNA probe will be mixed with a strand of a ribonucleic acid (RNA) to be tested to form a heteroduplex molecule within a sample. The kit also includes a ribonuclease enzyme, an RNA-primed DNA polymerase, a single strand-specific nuclease, DNA-dependent DNA polymerase, a blocking adapter and a tagged reporter adapter. Through ribonuclease digestion, differential sequence fill-in (DSF) and full-length sequence extension, tagged mutant-dual adapter hybrids are formed for detection, quantification or amplification. The sequence ubiquity of said mutant-dual adapter hybrids enables the use of universalized primers for sequence amplification regardless of the numbers or the origins of the mutations involved. | 01-05-2012 |
20130089860 | COMPARATIVE TRANSCRIPT ANALYSIS - One example embodiment includes a method of comparative transcript analysis. The method includes providing an antisense DNA probe. The method also includes linking a blocking adapter to the antisense DNA probe. | 04-11-2013 |
20130143217 | KITS FOR COMPARATIVE TRANSCRIPT ANALYSIS AND MUTANT SEQUENCE ENRICHMENT - A kit to execute a method of simultaneously performing comparative transcript analysis in a multitude of samples. The kit includes a blocking adapter. The blocking adapter includes an inert 3′ end. | 06-06-2013 |
Patent application number | Description | Published |
20090067111 | Flexible soft x-ray ionizer - A flexible ionizer uses soft X-ray and has a head unit generating soft X-ray whose wavelength is 1.2˜1.5 Å, a soft X-ray protect unit shielding the leak of the soft X-ray from the head unit, and a power control unit supplying a control signal and control voltage to the head unit. The head unit is positioned outside of the soft X-ray protect unit with the flexible ionizer further having a flexible tube protecting a high voltage cable that connects the head unit and power control unit from external impact or vibration and letting the user bend the head of the head unit at an arbitrary angle toward a charged body if necessary, a connecting device letting the ions generated at the window positioned inside of the body of the ionizer emit toward the charged body by connecting one end of the flexible tube and the head unit, and a connecting device connecting the other end of the flexible tube and the body of the ionizer. The high voltage power lines in the flexible tube are molded to prevent short circuits occurring at a near distance between the high voltage power lines and mutual induction voltages occurring. The short circuit and the mutual induction voltage are caused by the mutual influence of the high voltage lines. | 03-12-2009 |
20090103229 | Bar type ionizer - A bar type ionizer has a discharging electrode, a ground electrode, a high voltage unit, and a controller unit and uses the technique of eliminating static electricity by corona discharging. The ionizer also has a FND unit mounted on the bar which lets the user see the bar information including address of the bar, frequency, duty rate, alarm, run/stop state easily, plus buttons that let the user control the bar information easily, an air supply device installed around the needles in the air injecting socket which sends air, and a second air supply device installed around the needles having round sections and sending air to the end of the needles to eliminate the dust attached on the end of the needles. The ionizer has a streamlined section so that inside air flows smoothly. The second air supply device is elliptic with the minor axis smaller than the radius of the needle. The needle is positioned at the center of this elliptic groove and fixed by it. | 04-23-2009 |