Patents Assigned to Systems Technology, Inc.
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Patent number: 7302042Abstract: A system for remotely venting an expansion bladder employed in a liquid-filled container, such as an outer housing of an x-ray tube. The remote venting configuration provides the expansion bladder with access to atmospheric pressure existing about the x-ray tube so as to enable it to compensate for pressure changes within the liquid-filled container that occur as a result of liquid heating. Further, the remote nature of the bladder venting system enables the expansion bladder to be positioned within a portion of the outer housing that is radiation shielded, while the remote venting portion of the system is positioned in an unshielded portion of the housing. This eliminates the need to perforate the radiation shielding of the outer housing in order to provide atmospheric pressure to the bladder. Further, the remote vent is semi-permeable so as to prevent liquid escape from the system in the event of bladder rupture.Type: GrantFiled: April 28, 2006Date of Patent: November 27, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventors: Wayne Rollins Hansen, Ricky Smith
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Patent number: 7297610Abstract: First, a device wafer having a substrate layer and a device layer is provided. Then, a first mask pattern is utilized to remove the device layer uncovered by the first mask pattern. Subsequently, a medium layer is formed on the surface of the device wafer, and the medium layer is then bonded to a carrier wafer. Thereafter, a second mask pattern is utilized to remove the substrate layer uncovered by the second mask pattern. Finally, the medium layer is separated from the carrier wafer, the substrate layer is bonded to an extendable film, and the medium layer is then removed.Type: GrantFiled: July 18, 2005Date of Patent: November 20, 2007Assignee: Touch Micro-System Technology Inc.Inventor: Chen-Hsiung Yang
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Patent number: 7295214Abstract: Techniques for locating an array of melded colors onto a software application's component window in order to create three-dimensional and multicolor graphics within the component window. The techniques include decoding a first and second color into their respective individual color components, performing a transition operation on the foregoing color components to determine transition colors, dividing a portion of the component window into subcomponents, and locating the transition colors into the subcomponents and, thereby, create three-dimensional and multicolor graphics within the component window.Type: GrantFiled: November 24, 2004Date of Patent: November 13, 2007Assignee: Edwards Systems Technology, Inc.Inventors: Craig S. Bixler, Ping Li, David W. Brown
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Patent number: 7295649Abstract: A method of using a radiation system having a multileaf collimator (“MLC”) to adjust for unevenness in the radiation emitted by the system is disclosed. By appropriately controlling the MLC in accordance with the invention the system can be operated without a flattening filter. In addition, the invention allows the system user to vary the radiation beam energy in the course of a single treatment, without the need to use or change flattening filters. A map of the uneven radiation beam intensity in the treatment area is obtained, and the map information is combined with a treatment plan to control movement of the leaves of the MLC such that each area receives the correct radiation dose.Type: GrantFiled: October 13, 2005Date of Patent: November 13, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventor: Stanley W. Johnsen
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Patent number: 7292135Abstract: A system for automatically integrating various patient monitoring equipment into a nurse call system is implemented by incorporating a software system agent that translates communications in the patient monitoring equipment communication channel to a software system readable format. By translating the patient monitoring system's communications, a software system or computer can interpret the communications and act accordingly by signaling staff members, doctors, etc., in a manner that was not feasible by the hardware of the patient monitoring system. By interpreting the communications and having a nurse call system translation feature in the software system agent, nurse call systems can be “coupled” to the patient monitoring system to enable a synergy between systems that were here thereto incompatible or had limited functional capabilities.Type: GrantFiled: March 24, 2005Date of Patent: November 6, 2007Assignee: Edwards Systems Technology, Inc.Inventors: Craig Bixler, Scott Hutchinson, Brent Bergwall
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Patent number: 7291842Abstract: An image acquisition device 30 includes a photoconductor 48 to convert an electromagnetic radiation into electrical signals, a first layer 36 or 37 coupled to the photoconductor 48. The first layer 36 or 37 includes an insulator 54 and a plurality of conductors 56 or 57 embedded in the insulator 54 to conduct the electrical signals. A method of making an image acquisition device 30 includes the step of sandwiching a layer including an insulator and a plurality of conductors embedded in the insulator between a photoconductor layer and an electrode.Type: GrantFiled: June 14, 2005Date of Patent: November 6, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventors: George Zentai, Larry D. Partain
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Patent number: 7290929Abstract: A mounting assembly for supporting an evacuated enclosure within an outer housing of an x-ray tube is disclosed. The mounting assembly comprises a clamp portion having a C-shaped configuration, and a bracket portion having a circular recess that receives at least a portion of the clamp portion therein. The clamp portion includes an aperture that frictionally attaches to a window assembly of the evacuated enclosure. The clamp portion is in turn mechanically attached to the bracket portion such that an aperture in the bracket portion is aligned both with the clamp portion aperture and a window disposed in the window assembly. The bracket portion further includes a concave surface that is shaped to mechanically mate with an exterior portion of the outer housing, thereby securably supporting the evacuated enclosure within the outer housing. The mounting assembly further includes structures for securing the x-ray tube within an x-ray generating device.Type: GrantFiled: February 9, 2004Date of Patent: November 6, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventors: Craig Smith, Christopher Artig
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Publication number: 20070253536Abstract: A system for remotely venting an expansion bladder employed in a liquid-filled container, such as an outer housing of an x-ray tube. The remote venting configuration provides the expansion bladder with access to atmospheric pressure existing about the x-ray tube so as to enable it to compensate for pressure changes within the liquid-filled container that occur as a result of liquid heating. Further, the remote nature of the bladder venting system enables the expansion bladder to be positioned within a portion of the outer housing that is radiation shielded, while the remote venting portion of the system is positioned in an unshielded portion of the housing. This eliminates the need to perforate the radiation shielding of the outer housing in order to provide atmospheric pressure to the bladder. Further, the remote vent is semi-permeable so as to prevent liquid escape from the system in the event of bladder rupture.Type: ApplicationFiled: April 28, 2006Publication date: November 1, 2007Applicant: Varian Medical Systems Technologies, Inc.Inventors: Wayne Hansen, Ricky Smith
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Patent number: 7289603Abstract: A shield structure and focal spot control assembly is provided for use in connection with an x-ray device that includes an anode and cathode disposed in a vacuum enclosure in a spaced apart arrangement so that a target surface of the anode is positioned to receive electrons emitted by the cathode. The shield structure is configured to be interposed between the anode and the cathode and includes an interior surface that defines an aperture or other opening through which the electrons are passed from the cathode to the target surface of the anode. Additionally, fluid passageways defined in connection with the shield structure enable cooling of the shield structure. Finally, a magnetic device disposed proximate the cathode facilitates control of the location of the focal spot on the target surface of the anode.Type: GrantFiled: September 3, 2004Date of Patent: October 30, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventors: Gregory C. Andrews, James R. Boye
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Patent number: 7289599Abstract: A radiation apparatus (10) includes a beam source (12) generating radiation beam toward a target (11). A projection detector (17) detects the images of the target (11) formed by the radiation beam. In a radiation treatment session using the apparatus (10), the beam source (12) first generates a low intensity beam. The projection detector (17) generates image signals of a patient under the treatment. A control module (18) in the apparatus (10) develops a treatment plan in accordance with a treatment prescription and the image signals. Subsequently, the beam source (12) generates a treatment beam according to the treatment plan. The projection detector (17) can generate further image signals formed by the treatment beam to verify the treatment process.Type: GrantFiled: September 5, 2003Date of Patent: October 30, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventors: Edward J. Seppi, John Pavkovich
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Publication number: 20070247914Abstract: A non-volatile memory (NVM) cell fabricated on a semiconductor substrate, and including a floating gate electrode (which extends at least partially over all active regions of the NVM cell). The NVM cell also includes a PMOS access transistor located in a first n-type region, a PMOS control capacitor located in a second n-type region (separate from the first n-type region), and an NMOS programming transistor located in a p-type region. The floating gate electrode is a continuous electrode which extends over the active regions of the PMOS access transistor, the PMOS control capacitor and the NMOS programming transistor. Various array connections are provided for implementing arrays using this NVM cell. The PMOS access transistor and NMOS programming transistor can be replaced with an NMOS access transistor and a PMOS erase transistor, respectively, in an alternate embodiment.Type: ApplicationFiled: April 11, 2006Publication date: October 25, 2007Applicant: Monolithic System Technology, Inc.Inventors: Gang-feng Fang, Dennis Sinitsky, Wingyu Leung
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Patent number: 7286644Abstract: Systems, methods and devices for implementing automatic control of focal spot Z axis positioning are disclosed for use with an x-ray device having an x-ray tube positioned within a housing and configured for thermal communication with a temperature control system. Control circuitry, and a position sensing device configured to determine the distance between the focal spot and a reference point related to the x-ray device, are coupled with a control module. The position sensing device sends information concerning the relative distance between the focal spot and the reference point to the control module which compares the received information with a predetermined desired distance. If the received information varies by an unacceptably large margin from the desired distance, the control module sends a corresponding signal to the control circuitry which causes the temperature control system to implement an appropriate change to a heat transfer parameter associated with the x-ray device.Type: GrantFiled: April 28, 2004Date of Patent: October 23, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventor: Gregory C. Andrews
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Patent number: 7286630Abstract: A method of and apparatus for facilitating enhanced computed tomography (“CT”) scanning is provided including a scanned object (130) disposed on a translating table (120) capable of rotating the object (130) and moving the through the CT system (100). Certain values regarding the scanning system geometry and a target metric are provided (510 and 520). Given these values and the target metric, the system determines (530) a scanning procedure as a predetermined function of the target metric and the scanning system geometry dependant values. Further, the system may resample (720) the scanning data into an output array according to a predetermined sampling algorithm.Type: GrantFiled: December 16, 2005Date of Patent: October 23, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventor: Kevin Holt
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Patent number: 7275867Abstract: A probe assembly of an infrared thermometer is capable of detecting the surface temperature of a thermal radiation source and is suitable for holding over human skin or inserting into a patient's ear canal for accurately taking human body temperature. The probe assembly comprises a taper plastic tube, a conductive shell, an infrared radiation sensor and an adiabatic supporter, wherein the plastic tube has a radiation collection end and the conductive shell has a first open end. The infrared radiation sensor is placed in the first open end of the conductive shell, and has a base against the adiabatic supporter. The infrared radiation sensor has a hot junction toward the first open end of the conductive shell and a cold junction toward the adiabatic supporter.Type: GrantFiled: December 1, 2005Date of Patent: October 2, 2007Assignee: Oriental System Technology Inc.Inventor: Herman Lee
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Patent number: 7274618Abstract: A word line driver is provided for accessing a DRAM cell embedded in a conventional logic process. The DRAM cell includes a p-channel access transistor coupled to a cell capacitor. The word line driver includes an n-channel transistor located in a p-well, wherein the p-well is located in a deep n-well. The deep n-well is located in a p-type substrate. A word line couples the drain of the n-channel transistor to the gate of the p-channel access transistor. A negative boosted voltage supply applies a negative boosted voltage to the p-well and the source of the n-channel transistor. The negative boosted voltage is less than ground by an amount equal to or greater than the threshold voltage of the p-channel access transistor. The deep n-well and the p-type substrate are coupled to ground. The various polarities can be reversed in another embodiment.Type: GrantFiled: June 24, 2005Date of Patent: September 25, 2007Assignee: Monolithic System Technology, Inc.Inventor: Wingyu Leung
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Patent number: 7275200Abstract: A high-speed partial-word write operation is performed in a memory system. First, an error correction code (ECC) word, which includes a data word and associated error correction bits, is read from a memory array. A word line and a plurality of sense amplifiers are enabled during this read operation. The read data word is corrected in response to the associated error correction bits, thereby creating a corrected data word. The corrected data word is merged with a write data word, thereby creating a merged write data word. Write error correction bits are generated in response to the merged write data word, and the merged write data word and write error correction bits are written to the memory array. The word line and the plurality of sense amplifiers remain enabled from the reading operation through the write operation, thereby speeding up the partial-word write operation.Type: GrantFiled: September 6, 2005Date of Patent: September 25, 2007Assignee: Monolithic System Technology, Inc.Inventor: Wingyu Leung
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Patent number: 7274767Abstract: In one example, a radiation scanning system and method rotates a cargo conveyance after removal from a ship for proper orientation with respect to a scanning source and detector, for scanning. A movable carriage may be provided on a crane system, to rotate the cargo conveyance. A rotating flywheel on the carriage rotates in a direction opposite the direction of rotation of the cargo conveyance, to counterbalance angular momentum generated by the rotating conveyance, to avoid or minimize twisting of the carriage. Feedback is provided to control the rotation of the flywheel. Once the cargo conveyance is in the predetermined position, the conveyance is moved between the radiation source and detector for scanning by a vertically extending radiation beam.Type: GrantFiled: August 12, 2005Date of Patent: September 25, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventors: James E. Clayton, Paul Bjorkholm
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Patent number: 7274768Abstract: An x-ray diffraction-based scanning method and system are described. The method includes screening for a particular substance in a container at a transportation center using a flat panel detector having a photoconductor x-ray conversion layer to detect x-rays diffracted by a particular substance in the container. The diffracted x-rays may be characterized in different ways, for examples, by wavelength dispersive diffraction and energy dispersive diffraction.Type: GrantFiled: April 21, 2006Date of Patent: September 25, 2007Assignee: Varian Medical Systems Technologies, Inc.Inventor: Michael C. Green
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Publication number: 20070215237Abstract: An improved gasoline dispensing nozzle and vapor recovery system configuration makes an assist-type gasoline dispenser compatible with onboard refueling vapor recovery (ORVR) equipped vehicles. The gasoline flow shut-off mechanism of a nozzle functions without regard to variations in the level of vacuum in the filler neck, such as may occur when refueling vehicles having ORVR systems, by routing first and second sides of a shut-off diaphragm to the end of a spout of the nozzle via passageways within the nozzle.Type: ApplicationFiled: May 21, 2007Publication date: September 20, 2007Applicant: VAPOR SYSTEMS TECHNOLOGIES, INC.Inventor: Rodger Grantham
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Patent number: 7270154Abstract: A fuel storage and dispensing system is provided that is effective in reducing the emission of harmful volatile organic compounds. In accordance with one embodiment of the present invention, a fuel storage and dispensing system is provided comprising at least one storage tank, an air exhaust port, at least one fuel dispenser, a fuel dispensing nozzle, a rigid, fuel dispensing spout, a boot, a pressure relief chamber, a filter system, and at least one pump. The rigid, fuel dispensing spout further defines a non-coaxial fuel tube. The boot is configured to maintain a sufficient level of vacuum within the fuel storage and dispensing system. The boot is further configured to prevent fresh air from entering the fuel dispensing nozzle.Type: GrantFiled: October 28, 2004Date of Patent: September 18, 2007Assignee: Vapor Systems Technologies, Inc.Inventors: Glenn K. Walker, Rodger P. Grantham, Ken Allen