Patents Represented by Attorney, Agent or Law Firm Jenkins & Wilson, P.A.
  • Patent number: 6639981
    Abstract: A routing node for translating and re-directing Signaling System 7 (SS7) messages associated with ported subscribers in a communications network is disclosed. Re-direction or re-routing of signaling message packets is accomplished without the need for explicit local number portability (LNP) type triggers or queries, and as such the routing node of the present invention is considered to implement a triggerless LNP routing solution. Upon entering the routing node, SS7 ISDN User Part (ISUP) type signaling messages that require LNP translation service are encapsulated in an SS7 Signaling Connection Control Part (SCCP) message packet and internally routed within the switch to an LNP translation subsystem. The LNP translation subsystem can be integrated within the routing node or a portion of the LNP translation subsystem can be located on an external database server platform. LNP translation involves the lookup of a called party address in an LNP database, and the return of a Location Routing Number (LRN).
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: October 28, 2003
    Assignee: Tekelec
    Inventors: Randal Latta Dunn, Jr., David Paul Cox, Venkataramaiah Ravishankar, Colleen McGinnis Collard
  • Patent number: 6606379
    Abstract: A multiple point code routing node is configured to recognize multiple point codes as true point codes. The multiple point code routing node originates, terminates, and processes messages having any of its any of its true point codes. As a result, the multiple point code routing node can replace two or more signal transfer points in a conventional telecommunications network without requiring reconfiguration of other nodes in the telecommunications network. Multiple point code routing node may also recognize multiple adjacent point codes or secondary adjacent point codes of a mated multiple point code routing node. Because the multiple point code routing node can associate multiple point codes with its mate, the number of logical or physical signaling links between adjacent multiple point code routing nodes can be increased.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: August 12, 2003
    Assignee: Tekelec
    Inventors: Seetharaman Khadri, Randal Latta Dunn, Jr.
  • Patent number: 6593868
    Abstract: A differential digital/analog converter for the conversion of a digital input value into an analog output voltage with a first current source group, which has a plurality of current sources comprising at least one p-MOS transistor, which can be switched to at least one current collecting line (11, 12) in dependence on the digital input value, the first current source group having a binary current source switching segment (4) comprising binary current sources (6), with a second current source group, which has a plurality of current sources comprising at least one n-MOS transistor, which can be switched to the current collecting line (11, 12) in dependence on the digital input value, the second current source group having a binary current source switching segment (5) comprising binary current sources (13), and with an output buffer (3) for the conversion of the current flowing on the at least one current collecting line (11, 12) into the analog output voltage.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: July 15, 2003
    Assignee: Infineon Technologies AG
    Inventors: Martin Clara, Andreas Wiesbauer, Berthold Seger
  • Patent number: 6587544
    Abstract: Method for measuring a load impedance (ZL) of a load circuit which is connected to an SLIC circuit (6) of an analog terminal connection of a terminal device, having the following steps: specifically a digital toll signal (x1) is generated by means of a Codec circuit (13) connected to the SLIC circuit (6), said toll signal (x1) being converted into an analog toll signal; the analog toll signal is output by the SLIC circuit (6) to the load circuit; an analog voltage which is brought about at the terminal connection (4,5) of the terminal device of the SLIC circuit (6) via the analog toll signal is sensed; the digital toll signal (x1) is filtered by means of an adaptive filter (39) which is provided in the Codec circuit (13) and has adjustable filter coefficients (g1, g2) for generating a filtered digital comparison signal (yv) which is converted into an analog comparison voltage (Uv); the filter coefficients (g1, g2) of the adaptive filter (39) are adjusted until the analog comparison voltage (Uv) and the analog
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: July 1, 2003
    Assignee: Infineon Technologies AG
    Inventors: Gerhard Nössing, David Schwingshackl, Herbert Zojer
  • Patent number: 6586198
    Abstract: Deficiencies in certain physiological pathways are linked with ACE or vasopeptidase inhibitor associated angioedema. Additionally, detection and/or measurement of dipeptidyl peptidase IV (DPP IV) enzyme activity and aminopeptidase P (APP) enzyme activity is a predictor of this risk. The present invention provides biological markers, diagnostic tests, and pharmaceutical indications that are useful in the diagnosis and treatment of angioedema and in the marketing and safety of certain medications. This ability can be important for the treatment of a subject that is in need of or are taking an angiotensin-converting enzyme (ACE) inhibitor and/or a vasopeptidase inhibitor (combined ACE and neutral endopeptidase (NEP) inhibitor), which are commonly used in the treatment of hypertension (high blood pressure), diabetes, and cardiac and renal diseases.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: July 1, 2003
    Assignee: Vanderbilt University
    Inventor: Nancy J. Brown
  • Patent number: 6583508
    Abstract: The present invention provides an integrated circuit with a plurality of active strip-shaped regions (S1, D1, S2, D2, S3) arranged in parallel next to one another; a contact level (K2) with a respective plurality of contacts (9′; 11, 12) arranged regularly in the longitudinal direction of the individual strip-shaped regions (S1, D1, S2, D2, S3); the contacts (9′; 11, 12) being arranged in the widthwise direction of the individual strip-shaped regions (S1, D1, S2, D2, S3) in such a way that the widthwise extent of corresponding contacts (9′; 11, 12) of neighboring regions varies.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: June 24, 2003
    Assignee: Infineon Technologies AG
    Inventors: Andreas Baenisch, Sabine Kling
  • Patent number: 6579391
    Abstract: A method for hydroentangling a nonwoven web to increase the strength and abrasion resistance while maintaining highly desirable hand and drape characteristics. The method provides for carding and cross-lapping synthetic and/or natural fibers so as to form a desired substrate. The substrate is then hydroentangled under relatively low pressure to form a desired spunlace web, and a relatively low amount of a foam adhesive latex binding material is applied to the spunlace web. Thereafter, a force is applied to the foamed spunlace web so as to cause the foamed binding material to fully penetrate the spunlace web from face to back. The resulting hydroentangled (spunlace) nonwoven web provides an enhanced balance of tensile properties, abrasion resistance, and fabric aesthetics.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: June 17, 2003
    Assignee: North Carolina State University
    Inventors: Donald A. Shiffler, Amit Shahani, Thomas F. Gilmore
  • Patent number: 6575119
    Abstract: A suspended dog amusement apparatus, system and method are disclosed for amusing and exercising large breed dogs. The apparatus comprises a bar, a first suspension element for suspending the bar from a horizontal member at a support point on the bar, a weight element secured to the bar that applies a first gravitational torque to the bar about the support point, and a second suspension element secured to the bar that comprises a strand-like member attached to a resilient dog toy and which produces a second gravitational torque to the bar about the support point. When the apparatus is at rest, the gravitational torque forces produced by the weight element and the second suspension element are in counterbalanced equilibrium. When a dog engages the apparatus, the first and second gravitational torques are such as to provide an unpredictable and random movement of the resilient dog toy.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: June 10, 2003
    Inventor: Gene A. Lonsway
  • Patent number: 6569644
    Abstract: Isolated and purified lipoxygenase proteins and nucleic acids are described. Particularly, a novel human 12R-lipoxygenase (12R-LO) protein and cDNA are described. Recombinant host cells, recombinant nucleic acids and recombinant proteins are also described, along with methods of producing each. Isolated and purified antibodies to 12R-LO, and methods of producing the same, are also described.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: May 27, 2003
    Assignee: Vanderbilt University
    Inventors: Alan R. Brash, William E. Boeglin, Richard B. Kim
  • Patent number: 6569229
    Abstract: The present invention relates to an aqueous formulation containing phenol and/or phenol derivatives having a low freezing point and anti-microbial activity.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: May 27, 2003
    Assignee: Omya AG
    Inventors: Matthias Buri, Patrick Schwarzentruber
  • Patent number: 6559175
    Abstract: A method of protecting a corn plant from destructive insects which comprises applying to the seed from which it grows or the soil from which the seed grows a composition comprising an insecticidal 1-arylpyrazole and an insect repellent. A composition comprising the insecticidal 1-arylpyrazole and the repellent.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: May 6, 2003
    Assignee: Bayer CropScience Inc.
    Inventor: Keith A. Holmes
  • Patent number: 6559786
    Abstract: The invention provides a circuit arrangement for conversion of an input current signal (11) to a digital output signal (43). In particular, the invention relates to a method for providing a low-capacitance voltage node for a comparator input of a tracking analog/digital converter. An input circuit node (12a) is supplied with an input current signal (11). A feedback current signal (13) is produced by the input circuit node (12a) in order to operate a tracking analog/digital converter. A difference current signal (14) is likewise produced by the input circuit node (12a), and is supplied to a transimpedance resistance element (15) connected to the input circuit node. A second connection of the transimpedance resistance element (15) is connected to a reference circuit node (12b). An intermediate variable (22) is produced at the reference circuit node (12b), and is supplied to a downstream converter device (23). A constant voltage with respect to ground (33) is maintained at the input circuit node (12a).
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: May 6, 2003
    Assignee: Infineon Technologies AG
    Inventors: Stefan Groiss, Johannes Karl Sturm
  • Patent number: 6559785
    Abstract: Digital/analog converter for converting a binary coded data word into an analog output signal, having a capacitor cell Matrix (9) comprising capacitor cells (13ij) which are arranged in matrix form in columns and rows and are driven by thermometer-coded control signals via control lines; a first coding device (6) for recoding the n more significant data bits of the data word D to be converted into a thermometer-coded column control signal which has a width of 2n bits and is applied to the capacitor cell matrix (9) via column control lines (8), a second coding device (11) for recoding the m less significant data bits of the data word D to be converted into a thermometer-coded row control signal which has a width of 2m bits and is applied to the capacitor cell matrix (9) via row control lines (12), each capacitor cell (13ij) of the capacitor cell matrix (9) in each cast having an associated local decoding circuit (19ij) which drives switches (34, 35, 36, 37) in a manner dependent on the thermometer-coded row co
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: May 6, 2003
    Assignee: Infineon Technologies, AG
    Inventor: Franz Kuttner
  • Patent number: 6555488
    Abstract: A light-weight and impact-resistant composite material formed from a three-dimensional textile structure preform comprising at least three systems of yarns that define a plurality of interstices within the textile structure. A cellular matrix material impregnates the textile structure so as to fill the interstices of the three-dimensional textile structure and to coat at least a portion of the surface area thereof.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: April 29, 2003
    Assignee: North Carolina State University
    Inventors: Yiping Qiu, Mansour H. Mohamed, Wei Xu
  • Patent number: 6556628
    Abstract: Methods and systems for differential signaling include transmitting differential signals over N conductors, where N is greater than 2, from a sender to a receiver. The sender includes multiple transmitters that receive digital data and produce output signals based on the digital data. The output signals result in currents on conductors between the transmitters and multiple receivers. For any given symbol, the sum of the currents on the conductors is preferably equal to zero. In addition, a voltage difference preferably exists across the input terminals of each receiver. Methods and systems for coding binary data for transmission over a multi-conductor differential signaling system include converting input binary data into symbol numbers, converting the symbol numbers into valid drive words for a multi-conductor differential signaling system, and inputting the valid drive words to multiple differential transmitters.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: April 29, 2003
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: John W. Poulton, Stephen G. Tell, Robert E. Palmer
  • Patent number: 6546821
    Abstract: An apparatus and method are provided for determining the position of an elongate member such as a shaft in relation to a vessel in which the elongate member operates. The apparatus includes a mounting component adapted for placement over the open end of the vessel, one or more movable plungers, and one or more transducers that interact with the respective plungers. The plungers and transducers are supported by the mounting component and disposed below the mounting component. Thus, upon placement of the mounting component over the vessel, the plungers and transducers reside within the vessel while permitting the elongate member to be disposed at its normal operating position within the vessel. If the position of the elongate member is offset from a predetermined desired position within the vessel, the plunger is displaced by a certain magnitude that is detected by the transducer.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: April 15, 2003
    Assignee: Varian, Inc.
    Inventors: Gregory S. Duckett, C. J. Anthony Fernando, Michael R. Haw
  • Patent number: 6540939
    Abstract: An inorganic liquid or glass of hybrid composition including an inorganic component; and a template component, wherein the inorganic component and the template component are present in composition in a ratio that provides an intermediate range structural order to the composition. The intermediate range structural order results in the formation of metallotropic liquid crystals and anisotropic glasses. Methods of preparing the composition are also disclosed.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: April 1, 2003
    Assignee: North Carolina State University
    Inventors: James D. Martin, Todd A. Thornton
  • Patent number: 6542829
    Abstract: Accurate characterization of microelectromechanical systems (MEMS) geometry is critical for device design and simulation, for material property extraction, and for post-fabrication trimming. According to the present embodiment, a method for characterizing parameters describing MEMS structures resulting from the fabrication process or process variations is presented. According to the prefered embodiment, experimentally obtained natural frequencies are compared with numerical simulations to identify unknown values of structural parameters or parameter variations. Further, the prefered embodiment teaches how electrostatically-driven laterally resonant comb-drive MEMS test structures with prescribed changes in spring width are used to characterize systematic variations in process offsets and sidewall angles. The disclosed technique is both in-situ and non-destructive.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: April 1, 2003
    Assignee: Coventor, Inc.
    Inventor: Raj K. Gupta
  • Patent number: 6541053
    Abstract: A collagen processing method for thickening or hardening the collagen sufficiently by application of a liquid smoke fraction, obtained from a liquid smoke derivative (a derivative being commercially available as Code V), so that the resultant treated collagen is useful as a casing for a food product. The liquid smoke fraction may be obtained by treating Code V with both carbon and a pH adjustment whereby the method is without an effect on the taste of the food product. In another embodiment, the Code V is only pH adjusted.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: April 1, 2003
    Assignee: Mastertaste
    Inventor: Patrick W. Moeller
  • Patent number: D473521
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: April 22, 2003
    Assignee: Bell Canada
    Inventor: Michael Mavreas