Patents by Inventor David J. Evans

David J. Evans has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6928056
    Abstract: A system and method are provided for identifying an error condition and the sequence of a high bandwidth data stream that is split among low bandwidth links. The system includes a first unit coupled to links for inverse multiplexing a data stream into frames that are transmitted over at least two links and a second unit at the second location coupled to the other end of the links for receiving the frames and multiplexing the frames to produce the cell stream, wherein the first unit inserts at least one detection cell into each frame prior to transmission and the second unit analyzes the detection cell to determine if an error condition exits. The method includes establishing a size for a detection cell and a frequency of insertion into the data stream, determining a known signal that will be part of the detection cell, inserting the detection cell into the data stream, and analyzing the received detection cell at the second unit to determine if an error condition exists.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: August 9, 2005
    Assignee: Nokia Networks Oy
    Inventor: David J. Evans
  • Publication number: 20040229802
    Abstract: The use of collectins and/or surfactant proteins for the treatment and prevention of ocular disease.
    Type: Application
    Filed: April 14, 2004
    Publication date: November 18, 2004
    Inventors: Suzanne M.J. Fleiszig, David J. Evans, Robert A. Sack
  • Publication number: 20040216122
    Abstract: Various embodiments of the invention provide a method, system, and apparatus for efficiently routing data through multiple applications. Generally, when data is received, the data type is identified or matched with a sequence of one or more applications. The corresponding data is then routed through the identified sequence of one or more applications according to the rules defined in the application stack.
    Type: Application
    Filed: July 23, 2002
    Publication date: October 28, 2004
    Inventors: Charles Gram, David J. Evans
  • Patent number: 6708168
    Abstract: Methods and apparatus for parallel searching through a data stream. Using a register bank and comparators, the device performs a brute force search through a data stream to quickly find one or more patterns therein. The invention sacrifices physical space for speed by using multiple comparators on the same register bank. The output of the comparators is fed into a decoding circuit which determines the locations of matches and mismatches. Matches are compared against a database/table to determine their significance.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: March 16, 2004
    Assignee: Nortel Networks Limited
    Inventor: David J. Evans
  • Publication number: 20020122439
    Abstract: A system and method are provided for identifying an error condition and the sequence of a high bandwidth data stream that is split among low bandwidth links. The system includes a first unit coupled to links for inverse multiplexing a data stream into frames that are transmitted over at least two links and a second unit at the second location coupled to the other end of the links for receiving the frames and multiplexing the frames to produce the cell stream, wherein the first unit inserts at least one detection cell into each frame prior to transmission and the second unit analyzes the detection cell to determine if an error condition exits. The method includes establishing a size for a detection cell and a frequency of insertion into the data stream, determining a known signal that will be part of the detection cell, inserting the detection cell into the data stream, and analyzing the received detection cell at the second unit to determine if an error condition exists.
    Type: Application
    Filed: December 29, 2000
    Publication date: September 5, 2002
    Inventor: David J. Evans
  • Publication number: 20020087537
    Abstract: Methods and apparatus for parallel searching through a data stream. Using a register bank and comparators, the device performs a brute force search through a data stream to quickly find one or more patterns therein. The invention sacrifices physical space for speed by using multiple comparators on the same register bank. The output of the comparators is fed into a decoding circuit which determines the locations of matches and mismatches. Matches are compared against a database/table to determine their significance.
    Type: Application
    Filed: April 16, 2001
    Publication date: July 4, 2002
    Inventor: David J. Evans
  • Publication number: 20020087935
    Abstract: A method and apparatus for searching for a character pattern within a data stream. A checksum is computed for one or more patterns for which the data stream will be searched. The patterns may be of the same length or they may be of different lengths. A shift register is used to sequentially parse through the data stream and compute the checksum of a series of bytes in the data stream. If the checksum of the bytes in the data stream that have been shifted into the register matches the checksum from one of the character patterns, then the character pattern corresponding to the checksum has been found. The system may search multiple character patterns simultaneously by using multiple checksum generators in parallel.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 4, 2002
    Inventors: David J. Evans, John F. Pillar
  • Publication number: 20020078076
    Abstract: Information is transferred between a server system and a client system. Network data that includes a portion having state information is received from the server system. The portion is removed from the network data, and state information is appended to at least one address that corresponds to a link located in a remaining portion of the network data. The remaining portion of the network data is transmitted to the client system. Thereafter, a request is received from the client system and includes an address. A portion having state information is removed from the address, and the state information is formatted. A remaining portion of the address and the formatted state information are transmitted to the server system.
    Type: Application
    Filed: December 15, 2000
    Publication date: June 20, 2002
    Inventor: David J. Evans
  • Patent number: 6398782
    Abstract: The method, device and system for electrical sealing of a puncture opening in a blood vessel wall. In a first embodiment, a vascular sealing probe has two bipolar electrodes formed thereon, is insertable to a position whereat the bipolar tip is adjacent the blood vessel puncture site to effect electrocauterization or electrocoagulation of the puncture site. In a second embodiment the bipolar vascular sealing probe has a first electrode formed thereon and an electrode-guide wire has the second bipolar electrode formed thereon. The electrode-guide wire is passable through a lumen formed in the probe such that the second electrode on the electrode-guide wire is positioned close enough to the first electrode positioned on the probe to permit electrical current to pass therebetween.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: June 4, 2002
    Assignee: Edwards Lifesciences Corporation
    Inventors: Robert Pecor, Timothy C. Mills, Howard Taymor-Luria, Clifford E. Currier, Mark A. Konno, Charles R. Mooney, David J. Evans, Luchy D. Roteliuk
  • Patent number: 6224561
    Abstract: A one-handed blood sampling reservoir for an infusion line having a configuration which allows discard fluid to be drawn into the reservoir and then returned to the patient in two squeezing motions. Both drawing and returning steps are performed by squeezing two of a plurality of finger grips provided on the reservoir. The reservoir may include a bracket which enables one-handed operation in either a hand-held or a pole-mounted configurations. In the alternative, the reservoir and finger grips may be formed by telescoped inner and outer housings without a bracket. The reservoir desirably includes a syringe-like body forming a chamber and a plunger/piston assembly reciprocal therein to vary the volume of the chamber. A narrow gap is provided in the chamber open to both inlet and outlet ports when the piston is fully seated to ensure a consistent and minimum flush volume in the chamber.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: May 1, 2001
    Assignee: Edwards Lifesciences Corporation
    Inventors: David L. Swendson, W. Scott Couchman, Wesley M. Morris, David J. Evans
  • Patent number: 5961472
    Abstract: A one-handed blood sampling reservoir for an infusion line having a configuration which allows discard fluid to be drawn into the reservoir and then returned to the patient in two squeezing motions. Both drawing and returning steps are performed by squeezing two of a plurality of finger grips provided on the reservoir. The reservoir may include a bracket which enables one-handed operation in either a hand-held or a pole-mounted configurations. In the alternative, the reservoir and finger grips may be formed by telescoped inner and outer housings without a bracket. The reservoir desirably includes a syringe-like body forming a chamber and a plunger/piston assembly reciprocal therein to vary the volume of the chamber. A narrow gap is provided in the chamber open to both inlet and outlet ports when the piston is fully seated to ensure a consistent and minimum flush volume in the chamber.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: October 5, 1999
    Assignee: Baxter International Inc.
    Inventors: David L. Swendson, W. Scott Couchman, Wesley M. Morris, David J. Evans
  • Patent number: 5948815
    Abstract: The invention provides methods and compositions for reducing microbial cytotoxicity to a cell, by contacting a cell subject to extracellular microbial cytotoxicity with an effective amount of at least one of genistein or a genistein derivative. In preferred embodiments, the microbe is a gram-negative bacterium, a non-Enterobacteriaceae or a Pseudomonas aeruginosa or cepacia and the host cell is a mammalian epithelial cell, especially a lung epithelial cell or a corneal epithelial cell. The genistein or genistein derivative may be administered prophylactically prior to infection, subsequent thereto and/or in conjunction with conventional antibiotic therapies.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: September 7, 1999
    Assignee: The Regents of the University of California
    Inventors: Suzanne M. J. Fleiszig, David J. Evans
  • Patent number: 5803770
    Abstract: A female electrical connector (164') is carried on an electrical cable (24') including plural electrical conductors (28'). The female connector includes an insulative housing (34a', 34b') defining a blind cavity (36') therewithin and an axial opening outwardly from the cavity. The housing carries a printed circuit board (166) carrying plural wire-like contacts (40') which individually connect with the conductors of the electrical cable. The wire-like contacts extend into the cavity of the connector for deflecting in spring-like contact with electrical contacts (60) carried by a male connector (20) when the latter is inserted into the cavity of the female connector. A comb feature (50') of the female connector is formed by a strong end wall (138') of the blind cavity and in a respective one of plural slots (48') of the comb feature movably receives a free end portion (46') of each one of the plural wire-like contacts.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 8, 1998
    Assignee: Baxter International Inc.
    Inventors: David L. Swendson, David J. Evans
  • Patent number: 5611255
    Abstract: A cutter assembly for food film includes a rigid planar base with a movable metal strip anvil movably positioned thereon. A slidable cutter arm for forward or rearward movement is attached to a rear axle affixed to the base. The assembly, in one embodiment, can be positioned atop a conventional box of rolled food film. Safe, manual cutting of the food film to convenient lengths can be easily accomplished with minimal training and effort. A turret blade allows for convenient blade changing when dulling occurs.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: March 18, 1997
    Assignee: Marketing & Distribution Services, Inc.
    Inventor: David J. Evans
  • Patent number: 5354272
    Abstract: An improved integral flow-through injectate delivery system comprises fluid flow means having a proximal and a distal end. The proximal end comprises a first port having fluid inlet means for connecting the flow means to a source of fluid injectate and a second port adapted to be connected to a syringe means. The distal end of the fluid flow means is adapted to be connected to a fluid delivery means for delivering the injectate to the patient and the syringe means is adapted to direct injectate fluid from the injectate source through the fluid inlet and the fluid flow means to the fluid delivery means. A first check valve is in fluid-flow communication with the fluid inlet means and the fluid flow means and a second check valve means is in fluid-flow communication with the fluid flow means and the fluid delivery means. A sensing means is disposed within the fluid flow means at its distal end for sensing a characteristic of fluid flowing therethrough, usually temperature.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: October 11, 1994
    Assignee: Baxter International Inc.
    Inventors: David L. Swendson, David J. Evans, Lucien Attal
  • Patent number: 5291896
    Abstract: A cardiac output probe assembly is disclosed wherein the assembly includes a chest tube which carries a cardiac output probe therein. The chest tube includes a main lumen for draining fluids from the thoracic cavity of the chest and a secondary lumen which carries leads attached to the probe. The probe is attached to the pulmonary artery or aorta vessel with detachable tines and/or sutures. The tines are uniquely configured to ensure that good contact between the probe and vessel is maintained. When cardiac output monitoring is complete, a pulling force is applied to the probe leads extending out through a proximal end of the tube. The pulling force detaches the tines and sutures, releasing the probe from connection with the vessel. Further withdrawal of the leads through the tube retracts the probe within the tube, where it is housed until the tube is removed from the thoracic cavity.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: March 8, 1994
    Assignee: Baxter International Inc.
    Inventors: James D. Fonger, David L. Swendson, Clifford E. Currier, David J. Evans, Donald E. Bobo, Jr.
  • Patent number: 4770415
    Abstract: An electronic game simulates a shove-a-coin game by causing successive illumination of lights on a display, which simulates movement of a coin, in response to the activation of a control button. The final position of the "coin" relative to a scale is determined by the speed, or total distance of movement, of the button, and that final position determines the result of the game, which may be indicated by suitable indicators adjacent the scale. The control of the movement of the "coin" is such that, for speeds or distances of movement of the button less than a first value, the "coin" does not move, whereas for speeds or distances of movement of the button greater than a second value, the "coin" moves to an end position, corresponding to a losing result. Thus the skill of the game is to activate the button by the right amount to cause the "coin" to move to a winning position at some intermediate point along the scale.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: September 13, 1988
    Assignee: Video Fruit Services Limited
    Inventors: David J. Evans, David K. Thomas
  • Patent number: 4750179
    Abstract: Bipolar violation error counters are rendered insensitive to bipolar violations arising from the presence of bipolar eight-zero suppression (B8ZS) patterns in a bipolar pulse train by detecting B8ZS patterns in the pulse train applied to the error counter, and zeroing those bits of the B8ZS pattern which produce bipolar violations.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: June 7, 1988
    Assignee: Lynch Communications Systems, Inc.
    Inventors: Clifford A. Davidow, David J. Evans
  • Patent number: D287531
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: December 30, 1986
    Assignee: D. J. Evans Design Limited
    Inventor: David J. Evans
  • Patent number: D484389
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: December 30, 2003
    Assignee: D & D Group PTY Limited
    Inventor: David J. Evans