Patents Represented by Attorney, Agent or Law Firm Marc Bobys
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Patent number: 7890062Abstract: Power measurements of a signal having a changing frequency are corrected by acquiring samples of the signal, matching the samples of the signal to a sequence of frequencies indexed to correction transforms, and applying the correction transforms to the samples of the signal. Additionally, an apparatus corrects power measurements of a signal having a changing frequency and includes an acquisition block for acquiring samples of the signal, a sequence controller for matching the samples of the signal to a sequence of frequencies indexed to correction transforms and a correction block for applying the correction transforms to the samples of the signal.Type: GrantFiled: February 16, 2008Date of Patent: February 15, 2011Assignee: Agilent Technologies, Inc.Inventors: Fook Shian Toong, Eric Breakenridge
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Patent number: 7822579Abstract: A method and apparatus for measuring electrical signals measures an electromagnetic wave having an interference component at a center frequency and at multiple times to obtain data points. The positions of the data points on a complex plane are calculated. Chords of a circle on the complex plane, wherein the chords passing between pairs of the data points, and the circle fit to the data points are calculated. The chords are used to determine an approximate center of the circle wherein the position of the approximate center of the circle on the complex plane represents the electromagnetic wave with the interference component removed. An indication of the measured electromagnetic wave having the interference component removed is output from the apparatus.Type: GrantFiled: January 21, 2008Date of Patent: October 26, 2010Assignee: Agilent Technologies, Inc.Inventor: Akmarul Ariffin Bin Salleh
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Patent number: 7817762Abstract: An apparatus and method for detecting leading pulse edges of a signal includes a controller, hysteresis threshold comparators and qualification timers. The controller uses the outputs from the timers in order to determine whether or not a transition of the input signal constitutes a leading pulse edge of the input signal.Type: GrantFiled: December 12, 2005Date of Patent: October 19, 2010Assignee: Agilent Technologies, Inc.Inventors: Colin Johnstone, Eric Breakenridge
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Patent number: 7739063Abstract: A method for eliminating the systematic measurement errors from a measurement system, for example a vector network analyzer, such that an accurate representation of the behavior of a nonlinear device can be measured or characterized. The cross-frequency phase and absolute amplitude of the measured voltage waves applied to and emanating from the nonlinear device are measured and error corrected. These waves may be used for nonlinear device characterization or modeling.Type: GrantFiled: November 14, 2007Date of Patent: June 15, 2010Assignee: Agilent Technologies, Inc.Inventors: Loren C. Betts, Daniel B. Gunyan
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Patent number: 7705990Abstract: The use of a high power and an incoherent light source to reduce noise associated when investigating unknown molecules in Surface Plasmon Resonance (SPR) systems. High power and incoherent light sources can improve resolution and accuracy of SPR system measurements.Type: GrantFiled: August 4, 2006Date of Patent: April 27, 2010Assignee: Agilent Technologies, Inc.Inventors: Evan P. Thrush, Gregory D. VanWiggeren, Douglas M Baney
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Patent number: 7685866Abstract: A liquid delivery system having at least one channel, at least one valve within that channel, at least one flow sensing device within that channel, and a pressure source downstream of the valve capable for generating variable pressures.Type: GrantFiled: September 7, 2005Date of Patent: March 30, 2010Assignee: Agilent Technologies, Inc.Inventors: Alexander Bierbaum, Hans-Georg Weissgerber, Konstantin Choikhet
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Patent number: 7670480Abstract: A supply flow path for supplying a solvent is described. The supply flow path includes metering devices each with a piston, the metering devices being adapted for metering the solvent through separate source paths feeding the supply flow path. The supply flow path further includes a control unit adapted for controlling the metering devices' piston movement in accordance with solvent pressure, wherein a variation of the solvent pressure gives rise to a corresponding variation of a solvent volume contained in the supply flow path or a part thereof. The control unit is adapted for compensating for the variation of the solvent volume by corresponding movements or forward or backward displacements of the pistons.Type: GrantFiled: March 22, 2006Date of Patent: March 2, 2010Assignee: Agilent Technologies, Inc.Inventors: Klaus Witt, Konstantin Choikhet, Alexander Bierbaum
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Patent number: 7671329Abstract: An inductively coupled plasma mass spectrometer comprises a control device 70 for collectively controlling each of the following factors: the amount of liquid drops in the aerosol that is to be supplied to a plasma torch 20, the flow rate of carrier gases 76A and 76B in this aerosol, the RF output of a high-frequency power source 80, and the distance Z between plasma torch 20 and sampling interface 15 and 16.Type: GrantFiled: July 9, 2007Date of Patent: March 2, 2010Assignee: Agilent Technologies, Inc.Inventors: Kenichi Sakata, Noriyuki Yamada
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Patent number: 7661013Abstract: An automated laboratory device that comprises a mechanism that performs operations on laboratory samples, a scheduler that causes the mechanism to process laboratory samples in accordance with programmed processes, logic that detects an error occurring in a process controlled by the scheduler, logic that accepts a user-defined error handling routine for the error, and logic that executes the error handling routine when the error is encountered. Also described is an embodiment of the invention directed to a laboratory automation system, a method of laboratory automation, a computer implemented software program product, a method of doing business, and a laboratory automation network.Type: GrantFiled: January 13, 2006Date of Patent: February 9, 2010Assignee: Agilent Technologies, Inc.Inventors: Russell Berman, Giles Biddison, Felix Chuang, David K. Matsumoto, Joseph W. Barco
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Patent number: 7651280Abstract: A coupling for bringing a first conduit in communication with a second conduit. Each of the conduits comprises an end to be coupled and each of the conduits is adapted for conducting a medium. The coupling has a housing and at least one aperture in said housing. The housing is adapted for introducing said first and second conduits into the housing. Furthermore, the coupling comprises a recess in the housing. The recess is adapted for partly receiving the ends of the first and second conduits. The coupling has a seal adapted for sealing the first and second conduits within the recess.Type: GrantFiled: December 14, 2005Date of Patent: January 26, 2010Assignee: Agilent Technologies, Inc.Inventors: Jochen Mueller, Karsten Kraiczek, Bertram Beigel
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Patent number: 7634377Abstract: A method of processing data includes providing input data by a measurement device, converting the input data into output data provided in a unified data format, wherein the unified data format is a unique data format which is independent of individual formats of various measurement devices, wherein the unique data format is a relational data format, and the relational data format is a format in which data items are grouped to data item groups being logically linked to one another, and further processing the output data.Type: GrantFiled: August 10, 2006Date of Patent: December 15, 2009Assignee: Agilent Technologies, Inc.Inventors: Daniel Kasselmann, Michael Leiber, Reiner Lange, Thomas Kiaupat, Ralf Kaase, Roland Springholz
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Patent number: 7631542Abstract: A variety of methods for operating a chromatography system are presented. Specifically, methods for operating a pumping system within a chromatography system are presented. The methods presented are directed to pumping apparatus in which very small amounts of fluid are pumped through the system. A number of techniques for detecting and compensating for leaks are presented as well as a number of techniques for operating the pumping system.Type: GrantFiled: May 4, 2006Date of Patent: December 15, 2009Assignee: Agilent Technologies, Inc.Inventor: Hans-Georg Weissgerber
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Patent number: 7620515Abstract: An integrated circuit (10), preferably a field programmable gate array—FPGA or an application specific integrated circuit—ASIC—, comprises a level comparator (30) for comparing a level of a comparator input signal and correspondingly providing a comparator output signal (COS). A sampling unit (40) is coupled to the level comparator (30) for sampling (SAM) the comparator output signal (COS). A bit error test unit (60) receives the sampled comparator output signal (SAM) and determine therefrom an indication of a bit error in a sequence of the sampled comparator output signal (SAM).Type: GrantFiled: July 15, 2003Date of Patent: November 17, 2009Assignee: Agilent Technologies, Inc.Inventors: Martin Heinen, Joachim Moll
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Patent number: 7535243Abstract: When first and second measuring equipment connected to switches are switched to measure multiple types of electronic characteristics of a device under test which is a semiconductor device, the device under test is disconnected from the second measuring equipment and is connected to the first measuring equipment. Thereafter, the first measuring equipment applies a voltage to the device under test via the switches so that the voltage of the first measuring equipment matches the output voltage of the second measuring equipment. The device under test is then disconnected from the first measuring equipment and is connected to the second measuring equipment for measurement.Type: GrantFiled: July 10, 2006Date of Patent: May 19, 2009Assignee: Agilent Technologies, Inc.Inventors: Yasushi Hashimoto, Takayuki Takao
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Patent number: 7533685Abstract: An apparatus for collecting lubricant, such as from a vacuum pump, is disclosed. In certain embodiments the apparatus includes a cabinet for retaining a vacuum pump and a variable depth basin beneath the cabinet for collecting lubricant from a vacuum pump. In specific implementations the variable depth basin is deepest proximate the front of the cabinet.Type: GrantFiled: January 28, 2005Date of Patent: May 19, 2009Assignee: Agilent Technologies, Inc.Inventors: Robert Dallas Ricker, Viet X. Nguyen, Bernard John Permar, Jerome M. Szczepaniak, Lindy T. Miller, Eric Alan Schneider, Bill Van Ocker
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Patent number: 7534352Abstract: A process for producing a chromatographic stationary phase for use in reversed-phase chromatography. Chromatographic stationary phases prepared according to the methods of the current invention and liquid chromatography columns, which include the stationary phases, are also provided.Type: GrantFiled: May 1, 2007Date of Patent: May 19, 2009Assignee: Agilent Technologies, Inc.Inventors: Wu Chen, William E. Barber
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Patent number: 7535246Abstract: A coefficient indicating the relationship between a measurement voltage of voltage measuring unit and a voltage drop in a drain bias voltage due to drain current is determined based on at least an S parameter of a measuring system and an input impedance of the measuring unit. A voltage drop at the drain is determined from the coefficient. Based on the determined voltage drop, a drain bias voltage actually applied to the drain of an FET is determined. Also, a coefficient for converting the measurement voltage of the measuring unit into a drain current is determined based on at least an S parameter of a measuring system and the input impedance of the voltage measuring unit and an electrical length of the measuring system if necessary. Based on the determined coefficient, a drain current actually flowing in the FET is determined.Type: GrantFiled: December 28, 2006Date of Patent: May 19, 2009Assignee: Agilent Technologies, Inc.Inventor: Yasushi Okawa
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Patent number: 7530366Abstract: An cabinet for retaining a vacuum pump. The cabinet includes, in certain embodiments, removable access panels that allow access to the interior of the cabinet and to a vacuum pump placed within the cabinet. In certain embodiments the cabinet includes a top surface and at least one side surface. Portions of these top and side surfaces are removable from the cabinet to allow access to a vacuum pump that can be placed within the cabinet.Type: GrantFiled: January 28, 2005Date of Patent: May 12, 2009Assignee: Agilent Technologies, Inc.Inventors: Robert Dallas Ricker, Viet X. Nguyen, Bernard John Permar, Jerome M. Szczepaniak, Lindy T. Miller, Eric A. Schneider, Bill Van Ocker
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Patent number: 7517395Abstract: An inlet assembly for introducing a sample into a carrier gas stream for gas chromatography is disclosed including a housing having a bore that receives a liner. A sealing member having a core with a surface layer is positioned within the bore in sealing engagement with the bore and the liner. The surface layer of the sealing member has a lower adhesion to the housing than the core. The surface layer facilitates removal of the sealing member and the liner from the bore. A method of replacing an existing liner in an inlet assembly for chromatography is also disclosed. The method includes providing a liner with a sealing member having a core with a surface layer having a lower adhesion to the housing than the core, removing the existing liner from the bore and inserting a new liner with a new sealing member into the bore.Type: GrantFiled: December 1, 2005Date of Patent: April 14, 2009Assignee: Agilent Technologies, Inc.Inventor: Thomas M. Logan
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Patent number: 7519489Abstract: Determining a jitter property of a signal with a repetitive bit sequence of a plurality of bits includes setting a sample point at a first sampling position relative to a first transition within the bit pattern, assigning a set of digital values to comparison results of the digital signal with a threshold at the set sample point for a plurality of repetitions of the bit sequence, determining a distribution value on the base of the sum of the assigned digital values, shifting the sample point by a time increment, iteratively repeating determining the distribution value until the sample point has reached a second sampling position, determining from the distribution values a distribution function over the sample points, and determining the jitter property by using the distribution function.Type: GrantFiled: September 12, 2006Date of Patent: April 14, 2009Assignee: Agilent Technologies, Inc.Inventors: Guenter Tietz, Joachim Moll, Marcus Mueller