Patents Assigned to Agilent Technologies
  • Patent number: 7132890
    Abstract: A distributed amplifier, or if desired, an oscillator can be constructed using an active transmission line. The active transmission line, in turn, can be constructed using an auxiliary conductor inductively coupled to the primary conductor. The auxiliary conductor is driven by the primary conductor through an active shunt network distributed along the transmission line. The auxiliary conductor is placed close enough to the primary conductor so that the two conductors have a substantial amount of mutual inductance as compared to their self-inductance. In a variation of this system, the transmission line can be operated in differential mode. In one embodiment, a combination of conductance and transconductance are used to achieve gain in the transmission line for high frequency signal transmission. With absorbing terminations, the active transmission line constitutes an amplifier. With reflective terminations, the active transmission line constitutes an oscillator.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: November 7, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: Oliver D. Landolt
  • Patent number: 7128884
    Abstract: Highly purified, porous silica microspheres contain functional groups which are capable of selectively binding to reaction impurities, such as excess reactant or reaction by-products, which are contained in a reaction medium. The reaction impurities can thereby be efficiently removed from the reaction medium, providing a convenient method for product purification.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Joseph J. Kirkland, Timothy J. Langlois, Qunjie Wang
  • Patent number: 7129046
    Abstract: A method of producing a front surface modified substrate, which substrate includes a metal layer, and which is useful in the fabrication of an array of multiple probes bonded to a front surface of a substrate at different features of the array. The method includes providing the substrate wherein the front surface displays functional groups. The front surface is contacted with linker molecules each having a group which binds the linker molecule to the front surface following a reaction with a surface displayed functional group, which reaction does not produce a reagent which attacks the metal layer. To fabricate an array the front surface may be contacted with the probes or probe precursors to bind the probes or probe precursors to the front surface bound linker molecules.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: John S. Hargreaves
  • Patent number: 7129481
    Abstract: A mass spectrometer that includes a tray on the outer housing of the mass spectrometer for receiving a portable user interface. Each of the user interface and the tray has a transceiver port for transmitting and receiving electromagnetic wave radiation as infrared radiation. More specifically, the tray also includes a serial port connector and the portable user interface includes a receptor for receiving the serial port connected when the user interface is mounted on the tray.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: Gregor Overney
  • Patent number: 7128089
    Abstract: An electro-mechanical variable fluid flow restrictor includes a support having a passage and a seal surface, a deformable seal that is engageable with the seal surface, and a bias member for exerting an electronically controlled variable bias against the deformable seal. The seal surface includes channels formed in its surface that extend beneath the deformable seal. The bias member can exert a bias sufficient to cause the deformable seal to fill the channels, preventing fluid flow through the channels. When the bias member decreases the bias against the deformable seal, the deformable seal gradually moves out of the channels, allowing fluid flow through the channels, and through the passage in a flow control. The deformable seal does not need to separate from the seal surface to allow fluid flow. Instead, fluid flows through the small, controlled flow areas created when the deformable seal withdraws from the channels.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: H. Bryan Bente, Robert Clark Henderson
  • Patent number: 7128398
    Abstract: Pulse jet printhead assemblies having multiple reservoirs and multiple printhead dies, as well as methods for their use in the deposition of fluids, typically fluids containing a biopolymer or precursor thereof, onto a substrate surface, are provided. The subject printheads are characterized by having a multiple printhead die printhead and a multiple reservoir housing affixed to the multiple die printhead. In using the subject printhead assemblies, the firing chambers of the printhead assembly are loaded with a volume of fluid that includes a biopolymer or precursor thereof. The loaded printhead assembly is then placed in opposing relation to a surface of a substrate and actuated to deposit a volume of fluid on the substrate. The subject printhead assemblies find use in a variety of applications, including the production of biopolymeric arrays.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Lawrence J. DaQuino, Yat-Kwong Ip
  • Patent number: 7129480
    Abstract: Improved data acquisition systems and methods that enable large numbers of data samples to be accumulated rapidly with low noise are described. In one aspect, a data acquisition system includes an accumulator that has two or more parallel accumulation paths and is configured to accumulate corresponding data samples across a transient sequence through different accumulation paths.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Randy K. Roushall, Robert K. Crawford
  • Patent number: 7129154
    Abstract: A nanowire of a semiconductor material and having a uniform cross-sectional area along its length is grown using a chemical vapor deposition process. In the method, a substrate is provided, a catalyst nanoparticle is deposited on the substrate, a gaseous precursor mixture comprising a constituent element of the semiconductor material is passed over the substrate, and adatoms of the constituent element are removed from a lateral surface of the nanowire during the passing of the precursor mixture. The removing comprises passing over the substrate a gaseous etchant that forms a volatile compound with the adatoms, the gaseous etchant comprising a halogenated hydrocarbon. Removing the adatoms of the constituent element before such adatoms are incorporated into the nanowire prevents such adatoms from accumulating on the lateral surface of the nanowire and allows the nanowire to grow with a uniform cross-sectional area along its length.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc
    Inventor: Sung Soo Yi
  • Patent number: 7128876
    Abstract: The present invention relates to a microdevice for separating the components of a fluid sample. A cover plate is arranged over the first surface of a substrate, and, in combination with a microchannel formed in the first surface, defines a separation conduit for separating the components of the fluid sample. A sample inlet port in fluid communication with the conduit allows a fluid sample introduced from a sample source to be conveyed in a defined sample flow path such that the sample fluid travels, in order, through the sample inlet port, the separation conduit and a sample outlet port. The microdevice also includes an integrated introducing means for controllably introducing a volume of the fluid sample from a sample source into the sample inlet port and through the separation conduit. A method for separating the components of a fluid sample using the microdevice is also provided.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Hongfeng Yin, Kevin Killeen
  • Patent number: 7130534
    Abstract: A radiant oven comprises a radiant energy source configured to provide radiant electromagnetic energy, an insert configured to receive the radiant electromagnetic energy and convert the radiant electromagnetic energy into heat, and an additional element configured to receive the heat.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: Sammye E. Miller, II
  • Patent number: 7130056
    Abstract: A system and method for acquiring position information of a movable apparatus relevant to a specific axis is disclosed. In one embodiment, an interferometer generates first and second beams and various beam-steering members are located to define beam path segments for the two beams, but no beam path segment varies in length in unity with displacements of the movable apparatus along the specific axis. In another or the same embodiment, each beam path segment in which the first beam either impinges or has been reflected from the movable apparatus is symmetrical to a corresponding beam path segment of the second beam. The movable apparatus may be a wafer stage in which the “specific axis” is the exposure axis of a projection lens, but with all optical members which cooperate with the stage being located beyond the ranges of the wafer stage in directions perpendicular to the lithographic exposure axis.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: William Clay Schluchter, Louis F. Mueller, Douglas P. Woolverton, Jeffrey A. Young, Alan B. Ray, David C. Chu
  • Patent number: 7127652
    Abstract: An X-Tree test apparatus for testing combinatorial logic circuits in a multiplexed digital system. The apparatus includes a plurality of contacts for electrical connection with pins on a device under test. A first driver drives a logic one signal, and a second driver drives a logic zero signal, both of which are used for testing the device. Multiplexing circuitry selectively connects the first driver and the second driver with each of the plurality of contacts and device pins. A receiver, connected with the device under test, measures a response from the logic circuit under test to the logic one and zero signals to determine if it functions as intended.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: October 24, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Dayton Norrgard, Stephen Hird, John Siefers
  • Patent number: 7125492
    Abstract: The present invention provides silica-based reversed-phase HPLC methods that lead to higher retention of the analytes in the column and longer column lifetimes than usually observed under medium to high pH aqueous mobile phase conditions. The inventive methods comprise eluting the HPLC column using an aqueous mobile phase comprising at least one fluorinated additive. Preferred additives are polyfluorinated alcohols such as 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoroisopropanol. The methods of the present invention may be used for analyzing, separating, purifying, and/or isolating small organic molecules, natural products, as well as biomolecules such as polypeptides, oligonucleotides and polynucleotides (e.g., DNA fragments).
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: October 24, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Brian Bidlingmeyer, Qunjie Wang
  • Patent number: 7125752
    Abstract: In a method for making a microwave circuit, a first dielectric is deposited over a ground plane, and then a conductor is formed on the first dielectric. A second dielectric is then deposited over the conductor and first dielectric, thereby encapsulating the conductor between the first and second dielectrics. In one embodiment, a ground shield layer is formed over the first and second dielectrics by 1) precoating the first and second dielectrics with a metallo-organic layer, and then 2) depositing a thickfilm ground shield layer over the precoat layer. Alternately, a ground shield layer is formed over the first and second dielectrics by 1) placing a polymer screen over the first and second dielectrics, and applying pressure to the polymer screen until it at least partially conforms to a contour of the dielectrics, and then 2) printing a thickfilm ground shield layer through the polymer screen.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: October 24, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: John F. Casey, Lewis R. Dove, Ling Liu, James R. Drehle, R. Frederick Rau, Jr., Rosemary O. Johnson, Julius Botka
  • Patent number: 7125523
    Abstract: A holder for an array unit having a planar substrate and an array of chemical moieties on a surface of the substrate. The holder may include a body with a retaining mechanism which releasably retains an array unit in a seated position. A holder identifier may include data on a characteristic of the holder or seated array or be linkable to a file containing such information. An apparatus, method, and computer program product which may be used with such a holder are also provided.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: October 24, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: Debra A. Sillman
  • Patent number: 7126346
    Abstract: A method, apparatus and article of manufacture for manufacturing a balanced circuit obtains S-parameters for the balanced circuit and determines a delay value embedded at one of the single-ended terminals of the balanced circuit that reduces a differential to common mode conversion mixed-mode transmission S-parameter.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: October 24, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: Vahé Adamian
  • Patent number: 7123022
    Abstract: A device for enabling testing of electrical paths through a circuit assembly is presented. The device may include a non-contact connector test probe for a testing a connector of the circuit assembly. A method for testing continuity of electrical paths through a circuit assembly is presented. In the method, one or more nodes of the circuit assembly are stimulated, connector pins of a connector on the circuit assembly are capacitively coupled to a non-contact connector test probe, and an electrical characteristic is measured by a tester coupled to the non-contact connector test probe to determine continuity of electrical paths through the circuit assembly.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: October 17, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Kenneth P. Parker, Chris R. Jacobsen, Myron J. Schneider
  • Patent number: 7122791
    Abstract: A capillary for a mass spectrometry system is described. The capillary comprises a channel and a tip, and at least one of the channel and the tip comprises a carbon nanotube material that provides a hydrophobic surface.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: October 17, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Timothy H. Joyce, Jennifer Qing Lu
  • Patent number: 7124049
    Abstract: In one embodiment, a method comprises storing parameters that are related to switch error correction terms of a vector network analyzer (VNA), and applying a calibration process of a TRL group of calibration processes to the VNA to generate calibration measurements, wherein the calibration process generates calibration measurements, calculates a switch error correction matrix using the stored parameters and a subset of the calibration measurements, and applies the switch error correction matrix to calibration measurements before solving for eight-systematic error terms associated with the calibration process.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: October 17, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Kenneth H. Wong, David V. Blackham, James C. Liu, Keith F. Anderson
  • Patent number: 7122303
    Abstract: Methods for substantially improved detection and analysis in nucleic acid hybridization assays are described. The methods provide the reliable estimation of background signal which derives primarily from nonspecific hybridization. The invention is useful in chemical, biological, medical and diagnostic techniques, as well as for drug discovery.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: October 17, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Glenda C. Delenstarr, Steven M. Lefkowitz, Kevin J. Luebke, Leslie B. Overman, Nicholas M. Sampas, Jeffery R. Sampson, Paul K. Wolber