Patents Assigned to Agilent Technologies
  • Method and apparatus for atomic emission spectroscopy
    Patent number: 6774993
    Abstract: A gas plasma emission source includes a solid state signal power source coupled to a resonant cavity. In an alternative embodiment of the invention, an atomic emission detector includes a solid state signal power source coupled to a resonant cavity and a spectrographic detector to sense atomic emissions from a gas within the resonant cavity. In yet another embodiment of the invention, a method of sustaining a plasma includes passing a gas through a resonant cavity and exciting the resonant cavity with signal power from a solid state power source to sustain the plasma in the gas. In another embodiment of the invention, a method of using a solid state power source includes passing a gas through a resonant cavity and coupling sufficient signal power from an output of the solid state power source to sustain a plasma in the gas where the sufficient power is less than 300 watts.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: August 10, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: George J. Hudak
  • Hermetic seals for electronic components
    Patent number: 6774327
    Abstract: In a method of producing a plurality of hermetically sealed electronic components, first and second substrates are wafer bonded to enclose a plurality of electronic components therebetween. The first substrate is then cut to expose first seals on the first substrate and second seals on the second substrate. The first and second seals define perimeters around the plurality of electronic components. Solder is dispensed into the cuts in the first substrate, and the solder is then reflowed to join corresponding pairs of first and second seals.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: August 10, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Marvin Glenn Wong
  • Photonic crystal interferometric switch
    Patent number: 6775430
    Abstract: A photonic crystal interferometric switch has a photonic crystal; a waveguide in the photonic crystal, the waveguide having at least one input portion, at least two output portions and an interference channel connecting the at least two output portions, the waveguide capable of transmitting light within a bandgap of said photonic crystal; and a resonant member connected to at least one of the at least two output portions to control a property of light in the at least one output portion, to control the interference of light in the waveguide. A 1×2 optical switch may be constructed by tuning the parameters of the resonant member, either optically or electronically, resulting in a switching of a light signal from one output portion to another output portion. Furthermore, by isolating one output portion of the interferometer, the apparatus may be utilized as an optical modulator.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: August 10, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Curt A. Flory, Mihail M. Sigalas
  • Receiver for signals in a discontinuous flow and corresponding receiving process
    Patent number: 6775343
    Abstract: A receiver for optical signals arranged in packets of data having a discontinuous flow pre-reads the signal and generates, for each packet, a corresponding signal indicating the phase of the data in the packet, and a threshold level indicating the packet mean signal power. A delay line delays the discontinuous flow by a delay interval. A receiver responsive to the discontinuous flow delayed by the delay line performs, on each packet, a receiving operation on the basis of the threshold level and with a phase identified on the basis of the phase indicating signal.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: August 10, 2004
    Assignee: Agilent Technologies, Inc
    Inventors: Piero Gambini, Roberto Lano, Libero Zucchelli
  • Current-mode logic differential signal generation circuit employing squelch
    Patent number: 6774700
    Abstract: An electrical circuit generates both a differential data signal and a “squelch,” or “out-of-band,” state over a differential signal pair by employing common-mode logic (CML) technology. In one embodiment of the invention, a CML buffer having true and complementary (inverted) data outputs drive the differential data signal onto the positive (‘p’) and negative (‘n’) signal lines of the differential pair. To implement the squelch state, the true and complementary outputs of a two-input CML multiplexer are coupled with the corresponding outputs of the buffer. The data inputs of the multiplexer are driven by the data input signal driving the buffer, as well as the logical inversion of the data input signal. A squelch state signal then drives an input selector of the multiplexer to impress the squelch state over the differential signal pair when active.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: August 10, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Glenn Wood
  • Method facilitating inter-mode handoff
    Patent number: 6774857
    Abstract: A cellular handset supports simultaneous service for different frequency ranges, and different wireless standards.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: August 10, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Michael L. Frank
  • Switch and production thereof
    Patent number: 6774324
    Abstract: A switch and production thereof. The switch may be produced by (1) depositing a liquid switching element on a substrate, (2) positioning a channel plate adjacent the substrate, (3) moving the channel plate toward the substrate, the liquid switching element wetting to the channel plate, and a portion of the liquid switching element isolated into at least one waste chamber in the channel plate; and (4) closing the channel plate against the substrate.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: August 10, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Marvin Glenn Wong
  • Semiconductor laser structure and method of manufacturing same
    Patent number: 6775309
    Abstract: A semiconductor laser having a mesa structure includes active laser layers. The mesa structure is confined by Fe—InP lateral semi-insulating layers. A p blocking layer is interposed between the mesa structure and the lateral semi-insulating layers. Performance at high temperature and linear laser operation are improved. A preferred application is for manufacturing SIBH-DFB lasers for direct modulation in the 10 Gbit/s range.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: August 10, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Ruiyu Fang
  • Electrically-pumped, multiple active region vertical-cavity surface-emitting laser (VCSEL)
    Patent number: 6771680
    Abstract: An electrically-pumped vertical-cavity surface-emitting laser (VCSEL) has multiple active regions. Embodiments of the invention provide an electrically-pumped VCSEL having a number of different p-i-n junction and electrode arrangements, which, in various embodiments, allow independent biasing of the multiple active regions, and, in other embodiments, allow simplified electrical connections.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: August 3, 2004
    Assignee: Agilent Technologies, INC
    Inventors: David P. Bour, Jeffrey N. Miller, Steve Lester, Virginia Robbins
  • Electrical isolation of fluid-based switches
    Patent number: 6770827
    Abstract: A channel plate is mated to a substrate to define at least a portion of a number of cavities. The channel plate is provided with a switching fluid channel, and a pair of ground channels adjacent the switching fluid channel. A switching fluid is held within a cavity defined by the switching fluid channel, and is movable between at least first and second switch states in response to forces that are applied to the switching fluid. In one embodiment, the ground channels are replaced with ground traces. The ground traces may be formed on or in the substrate or channel plate. Switching circuits incorporating one or more these switches are also disclosed.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: August 3, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Marvin Glenn Wong
  • Apparatus and method for three-dimensional relative movement sensing
    Patent number: 6770863
    Abstract: An apparatus for sensing three-dimensional relative movement includes a movable motion sensor including a first and a second two-dimensional array of photo detectors. At least one lens directs far-field images onto the first and the second arrays of photo detectors. The sensor is configured to generate digital representations of the far-field images and to generate three-dimensional relative movement data based on the digital representations of the far-field images. The movement data is indicative of motion of the sensor in three dimensions.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: August 3, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Thomas M. Walley
  • Fiber connection fault visualization
    Patent number: 6771359
    Abstract: For visualizing faults in an optical fiber connection, imaging signals from the optical fiber connection are received and an image processing of the imaging signals is provided in order to detect faults in the fiber connection. The imaging signals are graphically represented, whereby a visualization of the detected faults is provided by representing such faults in accordance with a predefined coloring scheme.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: August 3, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Josef Beller
  • Heat sink device manufacture
    Patent number: 6769175
    Abstract: A method for manufacturing a cooling device. The cooling device may be used to cool an integrated circuit. The method is broadly summarized by the following steps: pressing a metal slug to near-net shape, wherein the near-net shape includes a peripheral wall portion defining a chamber, the chamber having a first open end and a second closed end, the closed end defined by a chamber floor portion, and wherein the near-net shape includes a heat conductive base portion, the heat conductive base portion being defined by a lower base surface and the chamber floor portion; machining the lower base surface; creating a radius on the top of the peripheral wall portion; and cutting a plurality of slot openings in the peripheral wall portion.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: August 3, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Guy R Wagner
  • Method and system for automated focus-distance determination for molecular array scanners
    Patent number: 6770892
    Abstract: An automated method and system for determining an optimal focus distance for scanning a molecular array scanner. Blocks of rows of a reference array are automatically scanned at successively greater distances of the stage from a light gathering medium, such as an optical fiber, or z-positions, to produce data providing a functional relationship between z-position and measured signal intensities. The data is then processed by a peak-height-based, or window-based, focus-finding routine that selects an optimal focus-distance for data scans.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: August 3, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: John F. Corson, Stanley P. Woods, Russell A. Parker, Xiangyang Zhou, Bo U. Curry
  • Optical fibre connector
    Publication number: 20040146252
    Abstract: The present invention relates to an optical fibre communication component (1), and particularly a connector receptacle (10) for connecting to a connector plug (20) having an optical fibre (6) mounted within a projecting cylindrical ferrule. The connector receptacle (10) comprises a housing (2) that has a passageway (3) with an entrance for receiving the ferrule (7). A split sleeve clamp (27) is seated within the passageway (3) and has an opening oriented towards the entrance for receiving the projecting ferrule (7). A hollow sleeve (23) having a cylindrical outer surface (36) and an axially extending open channel (37), is gripped by the split sleeve clamp to define the diameter of the opening to the clamp. The open channel (37) extends along the longitudinal axis (5) of the passageway (3) to allow optical radiation (50) to be transmitted through the channel (37) to/from said connector plug (20).
    Type: Application
    Filed: December 10, 2003
    Publication date: July 29, 2004
    Applicant: Agilent Technologies, Inc.
    Inventors: David Healy, Martyn Owen, Paul Wilton
  • Slab optical multiplexer
    Patent number: 6768834
    Abstract: A slab optical multiplexer comprises a slab substrate having two substantially flat and parallel surfaces, and internally propagating light beams. The multiplexer further comprises collimating/focusing optical elements and micro-diffractive optical elements each positioned on the surfaces in the light beams. At least one micro-diffractive optical element is positioned simultaneously in two separately incident and intersecting light beams, such that the two separately incident light beams are diffracted into a pair of co-propagating diffracted light beams.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: July 27, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Russell W. Gruhlke
  • Eye diagram analyzer with fixed data channel delays and swept clock channel delay
    Patent number: 6768703
    Abstract: Delay induced apparent amplitude desensitization in a data signal channel and its accompanying worm-like distortion in an Eye Diagram Analyzer is avoided by altering the measurement to avoid the need for any substantial delay in the path of the data channel threshold comparison signals. In a first technique, only enough delay will be inserted in the data channels to produce the relative adjustments needed to compensate for skew between the data channels, as determined by a calibration operation, and it is these de-skewed, but otherwise un-delayed, data threshold comparison signals that are, in rapid succession, clocked into the latches whose difference registers a hit at a given (time, voltage) pair. The clock path delay is then varied from a minimal value to a sufficiently large value capable of spanning a desired the number of eye diagram cycles.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: July 27, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Richard A Nygaard, Jr., David D. Eskeldson
  • Systems and methods providing scan-based delay test generation
    Patent number: 6769101
    Abstract: Chip analyzer systems and methods are provided to partition chip designs into smaller blocks in order to test speed paths more efficiently for integrated circuits. In accordance with one aspect of the invention, a system includes a chip analyzer and an automatic test generator. The chip analyzer partitions information corresponding to the integrated circuit into a plurality of circuit configuration blocks, and creates a model of a selected circuit configuration block in the integrated circuit. The automatic test generator receives the model from the chip analyzer, and creates tests from the model to determine the correctness of the integrated circuit. In accordance with another aspect of the invention, the method partitions the integrated circuit into a plurality of circuit configurations, and selects a circuit configuration on the integrated circuit to be tested.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: July 27, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Gayvin E Stong
  • Heterojunction bipolar transistor (HBT) having improved emitter-base grading structure
    Patent number: 6768141
    Abstract: A heterojunction bipolar transistor (HBT), including an emitter formed from a first semiconductor material, a base formed from a second semiconductor material, and a grading structure between the emitter and the base is disclosed. The grading structure comprises a semiconductor material containing at least one element not present in the first and second semiconductor materials, where the grading structure has a conduction band energy substantially equal to a conduction band energy of the base at an interface between the base and the grading structure, and where the grading structure has a conduction band energy substantially equal to a conduction band energy of the emitter at an interface between the emitter and the grading structure.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: July 27, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Sandeep R. Bahl, Nicolas J. Moll, Mark Hueschen
  • Displaying signal measurements within multiple ranges of a parameter
    Patent number: 6768293
    Abstract: Measurements are obtained of a signal within each one of multiple ranges of a parameter. For each range a representative measurement value is derived together with the extent of the range. A respective graphical display element is defined for each range of the parameter, a first dimension of each display element (such as its height) being indicative of the representative measurement value for the respective range of the parameter, and a second dimension of the display element (such as its width) being indicative of the extent of that respective range of the parameter. A display of the measured signal throughout the multiple ranges of the parameter is generated, with the graphical display elements superimposed at positions corresponding to the respective ranges of the parameter.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: July 27, 2004
    Assignee: Agilent Technologies, Inc.
    Inventors: Stuart Snaddon, Robert Schuller, Roy Macnaughton