Abstract: A method of cooling a rocket engine that includes removal of a gaseous propellant from a tank containing liquid propellant, thereby cooling the propellant in the tank, cooling a rocket engine with a coolant, thereby heating the coolant, and transferring heat from the heated coolant into the propellant in the tank, thereby heating the propellant in the tank and maintaining the pressure in the tank. In certain embodiments, the coolant is injected into the rocket engine after transferring heat from the rocket engine to the propellant in the tank.
Type:
Grant
Filed:
July 29, 2010
Date of Patent:
January 1, 2013
Assignee:
XCOR Aerospace
Inventors:
Jeffrey K. Greason, Daniel L. DeLong, Douglas B. Jones
Abstract: A method for transmitting a plurality of notifications in a notification pool includes determining a first notification batch having the plurality of notifications, and assigning a priority weight to each of the plurality of notifications, at least two of the priority weights being different. The method further includes inserting the first notification batch into the notification pool, and transmitting the plurality of notifications in the notification pool sequentially, based on the priority weights of the plurality of notifications. A system for transmitting a plurality of notifications is also provided.
Abstract: Composite Ni particles each having a silica coat is improved in oxidation resistance and heat shrink characteristics. A method of preparing composite Ni particles by using an organic Ni composite includes steps of: stirring and heating a nickel salt solution and a raw material of silica coat at a temperature ranging 25° C. to 80° C. for 0.5 hours to 2 hours; filtering, cleaning and drying a resultant product into an organic nickel composite; and thermally treating the organic nickel composite at a temperature ranging from 200° C. to 500° C. for 0.5 hours to 4 hours. The resultant composite Ni particles have excellent oxidation resistance and heat shrink characteristics.
Type:
Grant
Filed:
October 21, 2009
Date of Patent:
January 1, 2013
Assignee:
Samsung Electro-Mechanics Co., Ltd.
Inventors:
Young Il Lee, Jae Woo Jung, In Keun Shim
Abstract: There is provided an LED package including: a body unit; an LED chip mounted onto the body unit; lead frames mounted onto the body unit and electrically connected to the LED chip; and a reflection unit having a cavity to receive the LED chip therein and reflecting light emitted from the LED chip to the outside. Here, the reflection unit has a curved cross-section.
Type:
Grant
Filed:
December 3, 2009
Date of Patent:
January 1, 2013
Assignee:
Samsung Electronics Co., Ltd.
Inventors:
Hak Hwan Kim, Sung Kyong Oh, Soo Jin Jung, Hyung Kun Kim
Abstract: A DC/DC converter and a method protect a MOSFET driven by the converter from overcurrent conditions. No extra pins are required to sense the current, which saves IC package area and cost.
Type:
Grant
Filed:
September 16, 2010
Date of Patent:
January 1, 2013
Assignee:
Linear Technology Corporation
Inventors:
William Hall Coley, Kurk David Matthews
Abstract: A defect inspection apparatus emits light to a test object, detects reflected of scattered light from the test object and detects a defect in the test object The apparatus comprises a temperature-controlled part accommodating section that accommodates parts having a need for controlling a temperature, which is out of a plurality of parts in the defect inspection apparatus. A first temperature measuring instrument measures a temperature in the temperature-controlled part accommodating section; and a temperature control unit controls a temperature of the interior of the temperature-controlled part accommodating section at a prescribed temperature according to the temperature measured by the first temperature measuring instrument. Accordingly, a defect inspection apparatus can efficiently perform temperature control without involving an enlarged size can be achieved.
Abstract: This invention provides a wire bonding method, comprising providing an integrated circuit (IC) die having thereon a passivation layer and a plurality of first bonding pads exposed by respective openings in the passivation layer; forming a polymer layer on the passivation layer; forming an adhesive/barrier layer on the polymer layer; forming a metal pad layer on the adhesive/barrier layer; bonding a wire onto the metal pad layer to form a ball bond thereon; and after forming the ball bond on the metal pad layer, running the wire so as to contact the wire with a second bonding pad and forming a wedge bond thereto.
Type:
Grant
Filed:
June 20, 2006
Date of Patent:
January 1, 2013
Assignee:
Megica Corporation
Inventors:
Chiu-Ming Chou, Shih-Hsiung Lin, Mou-Shiung Lin, Hsin-Jung Lo
Abstract: A steering column for a vehicle can increase the entire strength of the steering column while maintaining a supporting force between an outer tube and an inner tube at the time of tightening or releasing an adjusting lever for a tilting or telescopic operation, thereby preventing deformation and breakage of the steering column when a driver operates a steering wheel.
Abstract: An imaging device that is able to display an image with an aperture value at the time when actually photographing on a liquid crystal display monitor for displaying an image, in a single-lens reflex digital camera is provided. In a depth-of-field preview mode, a quick return mirror (4) is retracted from an optical path and light is incident on an imaging sensor (11). Then, an imaging optical system is controlled to be in an actual aperture state, and by displaying an image data obtained at the imaging sensor (11) on the liquid crystal display monitor (16) for displaying an image, a plurality of images with aperture values at the time of actually photographing, in other words, actual aperture live view images, can be concurrently displayed simultaneously on the liquid crystal display monitor (16) for displaying an image. By doing so, it is possible to easily compare images with different depths of field, and it is possible to simultaneously photograph images with different depths of field.
Abstract: Trailers are described that include a chassis, a set of wheels for rollably supporting the chassis on the ground, and a rigid container carried by the chassis. The rigid container comprises a floor, a sidewall, an access door for loading/unloading materials into the container, and a convertible rigid roof. The convertible roof is movable between a closed position which permits waste or other materials to be compressed into the trailer, and an open position which permits the trailer to be loaded with bulk goods from the top. The convertible roof includes movable rigid panels, and a locking bar for holding the panels closed and connecting the opposite sidewalls of the trailer to each other against the expansion pressure exerted by loosely compressed materials transported in the trailer. The panels may be rotating panels hinged to a wall, or may be provided as sliding panels running in tracks.
Abstract: A synchronous signal conversion circuit converts a first synchronous signal, which is transmitted with a data signal, to a second synchronous signal conforming to a predetermined standard. In the synchronous signal conversion circuit, a transition detection circuit detects transition of the first synchronous signal. A synchronous signal generation circuit generates a second synchronous signal in response to a detection result by the transition detection circuit. An output timing control circuit delays the second synchronous signal generated by the synchronous signal generation circuit so that the second synchronous signal synchronizes with the data signal.
Abstract: In order to latch and store a word line reset level voltage (negative voltage) which is set during reset operation, a word line driver includes PMOS transistors and NMOS transistors. The word line driver further includes a stress-reducing PMOS transistor and an NMOS transistor, and also a word line bias control circuit which controls and activates a supply bias during setting of a word line, start of resetting, and a reset period.
Abstract: There is provided a semiconductor device capable of suppressing malfunction of an element to be protected, caused by electrons from an output element into a semiconductor substrate. The semiconductor device is provided with the semiconductor substrate, the output element, the element to be protected, a tap part, and a first active-barrier structure. The first active-barrier structure is disposed between the element to be protected and the tap part. Further, the first active-barrier structure includes an n-type region joined with a p-type doped region, and a p-type region in ohmic coupling with the n-type region.
Abstract: A nitride semiconductor device includes: a first nitride semiconductor layer; a second nitride semiconductor layer formed on the first nitride semiconductor layer and having a wider band gap than the first nitride semiconductor layer; and a third nitride semiconductor layer formed on the second nitride semiconductor layer. A region of the third nitride semiconductor layer located below the gate electrode is formed with a control region having a p-type conductivity, and a region of the third nitride semiconductor layer located between the gate electrode and each of the source electrode and the drain electrode is formed with a high resistive region having a higher resistance than the that of the control region.
Abstract: In a target supply unit of an extreme ultraviolet light source apparatus for generating extreme ultraviolet light by applying a laser beam to a target material to turn the target material into plasma, clogging of a target nozzle for supplying the target material to a laser beam application point is suppressed. The target supply unit includes: a target container for accommodating the target material; a target nozzle for injecting the target material supplied from the target container; and a reducing gas supply unit for supplying a reducing gas into the target container. Instead of using the reducing gas, a carbon-based material having a reduction action may be provided within the target container for causing reduction reaction.
Abstract: A method of and an apparatus for fitting or removing a tire 4 of a vehicle wheel 1, in which at least one fitting or removal tool 5 is guided parallel to the axis 11 of the vehicle wheel 1 and the vehicle wheel 1 is moved controllably perpendicularly to its wheel axis 11 in dependence on a rim contour along which the fitting or removal tool 5 is to be guided at a small spacing.
Abstract: A control circuit supplies a word line drive voltage to one of m word lines which corresponds to a memory cell to which data is to be written, during a word line drive period including a first period and a second period following the first period, to decrease current capabilities of first and second load transistors included in the memory cell during the first period, and increase the current capabilities of the first and second load transistors during the second period.
Abstract: A broadcast receiving apparatus in the present invention includes: a first audio data characteristics extracting unit extracting a first soundless period and first interval information from first audio data included in the first service; a second audio data characteristics extracting unit extracting a second soundless period and second interval information from second audio data included in the second service; a simulcast determining unit determining whether or not the broadcast waves are simulcast by comparing the first interval information with the second interval information; and a broadcasting switching control unit switching between (i) the output of the audio data and the video data included in the first service and (ii) the output of the audio data and the video data included in the second service based on a result of the determination by the simulcast determining unit.
Abstract: In a CMIS device, to improve the operating characteristics of an n-channel electric field transistor that is formed by using a strained silicon technique, without degrading the operating characteristics of a p-channel field effect transistor. After forming a source/drain (an n-type extension region and an n-type diffusion region) of an nMIS and a source/drain (a p-type extension region and a p-type diffusion region) of a pMIS, the each source/drain having a desired concentration profile and resistance, a Si:C layer having a desired amount of strain is formed in the n-type diffusion region, and thus the optimum parasitic resistance and the optimum amount of strain in the Si:C layer are obtained in the source/drain of the nMIS. Moreover, by performing a heat treatment in forming the Si:C layer in a short time equal to or shorter than 1 millisecond, a change in the concentration profile of the respective p-type impurities of the already-formed p-type extension region and p-type diffusion region is suppressed.
Abstract: In a lithium secondary battery using a negative electrode having a negative electrode mixture layer formed on a surface of a negative electrode current collector, the mixture layer made of a binder and negative electrode active material particles of silicon and/or a silicon alloy, charge-discharge cycle performance is improved without degrading the capacity per unit volume, by making the negative electrode mixture layer sufficiently adhere to the negative electrode current collector. The negative electrode has a negative electrode mixture layer composed of a binder and negative electrode active material particles of silicon and/or a silicon alloy. The negative electrode mixture layer is formed on a surface of the negative electrode current collector by sintering. Negative electrode active material particles are partially embedded in the negative electrode current collector.