Patents Represented by Attorney, Agent or Law Firm David S. Jacobson
  • Patent number: 6049544
    Abstract: A voice server module for an ATM switch is provided and generally includes an interface block which receives and multiplexes high speed preprocessed data, a voice processing block which compresses voice data and which is coupled to the interface, a data bus for carrying compressed voice data, a flag bus for carrying flags generated by the voice processing block relating to the voice data, an ATM adaptation layer (AAL) processor coupled to the data bus and to the flag bus which formats the compressed voice data into ATM AAL2 format, and a management processor which configures the interface block, the voice processing block, and the AAL processor. For each byte of data sent serially on the data bus, at least one bit of flag data is sent on the flag bus. In one embodiment, the flag bits are used to indicate whether the data on the high speed data bus is valid or not, tone detection, silence removal, and the type of encoding being utilized.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: April 11, 2000
    Assignee: General Data Comm., Inc
    Inventors: James Patrick Kurdzo, Daniel Paul Steinbach, John Martin O'Neil, III
  • Patent number: 6049042
    Abstract: Electrical cables of the present invention include cables made from plated filaments which are first twisted together and then drawn through reducing dies (or swaged), filaments which are twisted together around a core material which melts or deforms during drawing of the cable through reducing dies, filaments which are twisted around a tube prior to drawing through reducing dies, and cables which are made from combinations of these methods. The cables exhibit a conductivity comparable to cables having greater diameter and weight. The smaller diameter of the cables of the invention allows them to be used as leads for electronic components in order to achieve reduced parasitic capacitance without increased resistivity or reactance or component package size. The cold working of the cables of the invention provides them with enhanced flexibility and fatigue strength.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: April 11, 2000
    Inventor: Francisco J. Avellanet
  • Patent number: 6044957
    Abstract: A system for loading two items, such as bags, into a bucket on a bucket conveyor, first selects a first item for delivery to a second loading station. Thereafter, a second item is delivered to a first loading station and then loaded into a bucket at the first loading station. The bucket is then moved to the second loading station where it is loaded with the first item.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: April 4, 2000
    Assignee: Langen Packaging, Inc.
    Inventor: Peter Guttinger
  • Patent number: 6043991
    Abstract: A card panel includes a conductive bracket and a circuit board coupled to the bracket. The bracket includes a front side, and first and second lateral sides. The board is coupled to an inner surface of the first side of the bracket, while an outer surface of the first side operates as a conductive contact. The outer surface of the second side of the bracket includes an integrally molded T-shaped track, and a hole at each end of the track. An elongate conductive spring having a generally triangular cross-section with two inwardly directed lower flanges and a raised portion is positioned on the track such that each of the lower flanges is held by track and further such that the ends of the spring are positioned between the holes in the track. Rivets are provided in the holes and maintaining the spring on the track. The integrally molded track permits easy installation of the spring to the bracket. The integration of the components provides an assembly having relatively few components and a relatively low cost.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: March 28, 2000
    Assignee: General DataComm, Inc.
    Inventor: Gregory L. Sorrentino
  • Patent number: 6041785
    Abstract: A punctum plug includes a proximal head, a distal body, and a shaft between the head and the body. The shaft of the plug is provided with one or more foldable portions, thereby permitting the length of the shaft to vary depending upon the degree to which the folds are folded or unfolded. In addition, the folds permit the wall of the shaft to easily bend, permitting the head and body of the plug to lie along different axes. As a result, the plug is shaped to accommodate both relatively long and short vertical puncta and the body of the plug may be angled relative to the head to accommodate a variety of anatomical structures.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: March 28, 2000
    Assignee: Eaglevision, Inc.
    Inventor: Nicholas J. Webb
  • Patent number: 6044060
    Abstract: An ATM network switch includes a switch fabric (14), and a plurality of slot controllers (11) coupled to the switch fabric. Each slot controller has at least one external data link (12, 13), cell receiving circuitry (21) for receiving ATM cells from the data link and cell transmitting circuitry (22) for transmitting ATM cells outwardly on the data link. The cell transmitting circuitry of each slot controller includes traffic shaping circuitry (23) arranged to set, for each cell presented to the transmitting circuitry, a current onward transmission time where onward transmission at the input rate meets a predetermined flow rate criterion, and a delayed onward transmission time where onward transmission at the current time would cause the traffic on a VC to exceed a predetermined flow rate criterion.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: March 28, 2000
    Assignee: General DataComm
    Inventor: Trevor Jones
  • Patent number: 6043806
    Abstract: An inductive joystick includes a movable actuator which carries an element of electrically conductive low magnetic permeability material (e.g., copper or aluminum), such that movement of the actuator differentially affects the coupling between a primary coil and a pair of secondary coils which are encircled by the primary coil. The arrangement provides a desirable output characteristic, in which the minimum output of each secondary coil is preferably greater than the maximum difference between the outputs of the two secondary coils, useful for detecting component failure. The secondary coils are preferably connected in a processing circuit which rectifies the outputs of the two coils before combining them to form a resultant "difference" output.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: March 28, 2000
    Assignee: Penny & Giles Controls Limited
    Inventors: Anthony Keith Atwell, Terence Kevin Pontin
  • Patent number: 6041064
    Abstract: A voice server module for an ATM switch is provided and generally includes an interface block which receives and multiplexes high speed preprocessed data, a voice processing block which compresses voice data and which is coupled to the interface, an ATM adaptation layer (AAL) processor which receives uncompressed data and compressed data and which formats the uncompressed data into ATM AAL1 format and the compressed data into ATM AAL2 format, and a management processor which configures the interface block, the voice processing block, and the AAL processor. The interface means receives data which originated from up to four E1 or T1 lines, and multiplexes the data into a high speed serial data stream. The data stream is then sent both to the voice processing block and to the AAL processor, with the voice processing block ignoring all but the voice data portion of the data stream, and the AAL processor ignoring the voice data portion of the data stream.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: March 21, 2000
    Assignee: General DataComm, Inc.
    Inventors: James Patrick Kurdzo, Robert Alan Zakrzewski
  • Patent number: 6038777
    Abstract: A sight reduction apparatus includes a sextant, a processor, and a nautical almanac, preferably all provided in an unitary housing. The sextant includes a fixed telescope which is pointed at a known celestial body, and a radial arm is moved against an arc graduated in degrees until a mirror mounted on the sextant reflects an image of the horizon down the telescope to coincide with the known celestial body. The angular elevation of the celestial body, corrected for the exact time and date, gives the position of the user on an imaginary circle. The nautical almanac provides essential data for determining the location of a predetermined list of celestial bodies relative to a fixed location. The processor is programmed to determine the position of a user based upon measurements made with respect to two celestial bodies using the sextant and information provided in the nautical almanac and to further provide the position of a user in terms of latitude and longitude.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: March 21, 2000
    Inventor: William Cochran
  • Patent number: 6036725
    Abstract: A stent includes a cylindrical tubular form and a plurality of foil members coupled about to the exterior of the tubular form. The foil members are spaced apart around the circumference of the tubular form to provide spaces between the segments when the stent is in an expanded state, the spaces permitting the tubular form to be contracted to a small diameter for delivery to an implant site. According to a first embodiment, the stent is self-expanding, and the tubular form is formed from a resilient wire, preferably having a plurality of longitudinal back and forth bends. According to a second embodiment, the stent is self-expanding and comprised of a plurality of tubular portions linked together, each of the portions having a plurality of foil members coupled about the circumference of the portion. According to a third embodiment, the stent is pressure expandable, and the tubular form of the stent is made from a malleable slotted tube or one or more malleable wires.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: March 14, 2000
    Assignee: General Science and Technology
    Inventor: Francisco J. Avellanet
  • Patent number: 6035919
    Abstract: A garage door decorative cover assembly for use on an exterior surface of a garage door made of a plurality of door panels permitted to rotate relative to each other when the garage door moves from a closed position to an open position includes at least one flexible panel and, for each flexible panel, a first fixing element and at least one resilient second fixing element. Each flexible panel has a first end, a second end, a front surface and a back surface. With respect to each flexible panel, the first fixing element attaches the first end of the flexible panel to the exterior surface of the garage door, and the resilient second fixing element couples the second end of the flexible panel to the exterior surface of the garage door such that the flexible panel is held taut when the garage door is in both open and closed positions. The flexible panels are provided with fanciful holiday, seasonal, or other celebratory indicia.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: March 14, 2000
    Assignee: SunHill Industires, Inc.
    Inventor: Benson Zinbarg
  • Patent number: 6034293
    Abstract: An eyelid splint for immobilizing the upper lid of an eye in a closed position includes a substantially rigid member, an adhesive applied to the back of the substantially rigid member, and a peel-off backing covering the adhesive. The substantially rigid member, by definition, resists folding or severe bending when adhered to the upper lid. The substantially rigid member is provided with the general shape and size of an upper lid in a closed position, and includes a removal tab. According to a preferred embodiment, the substantially rigid member is made from a medical grade polyethylene, plastic, vinyl, or silastic material, preferably porous and having high oxygen permeability. The removal tab is preferably provided on the superior edge of the eyelid splint and is preferably includes no adhesive backing. The inferior edge of the eyelid splint is contoured to the general shape of the lower edge of the upper lid.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: March 7, 2000
    Inventor: John F. Stamler
  • Patent number: 6031920
    Abstract: A sound focusing speaker system includes a sound focusing lens having an upper parabolic portion and a coaxial lower parabolic portion, each defined by different parabolic equations. A conical skirt is also provided adjacent the lower parabolic portion, and a lower lip is provided around the conical skirt. A speaker driver system is provided within the sound focusing lens. The speaker system includes a high frequency driver, a low frequency driver, and a sound dispersion lens into which the low frequency driver fires. The high frequency driver is vertically aligned with the focus of the upper parabolic portion, and a central portion of the sound dispersion lens is vertically aligned with the focus of the lower parabolic portion. The conical skirt contains reflected waves. The coaxial dual parabolic sound focusing speaker system is optimized to accurately reproduce a broad frequency spectrum of sound and to reflect the sound into a substantially vertical beam.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: February 29, 2000
    Inventor: David Wiener
  • Patent number: 6032187
    Abstract: An intelligent data service unit (DSU) which terminates a digital subscriber loop is provided and includes a digital subscriber loop interface which receives incoming data from a DDS line of the service provider, a framing and signal converter for taking the incoming data and formatting the data for output, an output interface, a processor connected to the framing and signal converter and to each of the interfaces, and a data memory buffer coupled to the processor. All data provided to the DSU from the digital subscriber loop is reformatted by the framing and signal converter and propagated to the output interface as it is received. At the same time, a copy of the data is buffered into the memory, and the processor scans the memory to find and synchronize with an networking protocol frame (e.g., an IP frame) Once synchronized, the processor compares the destination address in the IP frame to the network address of the DSU. If the addresses match, the IP frame is stored for processing (e.g.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: February 29, 2000
    Assignee: General DataComm, Inc.
    Inventor: Robert A. Blain
  • Patent number: 6028840
    Abstract: A connection admission control system for the link of an ATM switch generally includes a system for accepting a proposed call if the tangent effective bandwidth, a conservative approximation for the bandwidth, of the proposed call when added to the sum of the tangent effective bandwidths of all other calls being handled by that link are less than the capacity of the link is less than the capacity of the link. The proposed call may also be accepted if the zero-loss effective bandwidth for the proposed call when added to the sum of the zero-loss effective bandwidths of all other calls being handled by that link is less than the capacity of the link. The tangent effective bandwidths and zero-loss effective bandwidths are calculated off of the switch by a processor and stored in a table at the switch. When a call request is received it is placed into a connection class, and the tangent effective bandwidth and zero-loss effective bandwidth relating to that connection class is found in the table.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: February 22, 2000
    Assignee: General DataComm, Inc.
    Inventor: Thomas Worster
  • Patent number: 6027470
    Abstract: A punctum plug includes a proximal head, a distal body, and a shaft between the head and the body. The head and shaft are provided with a bore to facilitate insertion of the plug through the punctal opening with an insertion tool. According to one aspect of the invention, the head is provided with a lower portion having a frustoconical shape which, in situ, reduces the external profile of the head, without sacrificing the thickness of the head. Preferably, the head includes peripheral upper and lower surfaces which are both non-orthogonal to the longitudinal axis of the shaft, and a more central upper surface which is generally orthogonal to the longitudinal axis of the shaft. According to a second aspect of the invention, the head has an oblong cross-section such that long and short lateral dimensions are defined across the head. According to a third aspect of the invention, at least a proximal portion of the shaft is provided with an oblong cross-section.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: February 22, 2000
    Assignee: Eagle Vision, Inc.
    Inventor: Richard W. Mendius
  • Patent number: 6019736
    Abstract: A flexible intravascular guidewire comprises a plurality of filaments braided together and drawn through a die to a reduced cross-sectional area of circular shape. Preferably, one or more of the filaments is coated with a radiopaque material prior to drawing it through the dye. According to a preferred embodiment, each of the filaments is made from the same metallic material; alternatively, the filament material may differ, e.g., to provide flexibility and torsional stiffness characteristics which are unachievable in a metal monofilament, or in a multifilament wire of the same filament materials.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: February 1, 2000
    Assignee: Francisco J. Avellanet
    Inventors: Francisco J. Avellanet, Robert Braun
  • Patent number: 6018583
    Abstract: A secure network comprises a plurality of terminals connected to a common file server. Each terminal holds in its memory an encrypted unique variable and unique first and second conjugates for each user authorized to use that terminal. The unique variable is generated, at the time of registration of a user, from master keys stored on a separate disc or other memory medium, the identity number of the terminal, and the identity number of the user to be registered. A password is randomly generated and used to encrypt the unique variable. The first conjugate is a randomly generated message, which is encrypted using the password to generate the second conjugate. In order to log on at a given terminal, the user must enter his password, and the terminal then uses this password as the key to encrypt the first conjugate, and compares it with the stored second conjugate. If the first and second conjugate agree, the terminal is enabled for the person to use. A high level of security is therefore attained.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: January 25, 2000
    Assignee: Chantilley Corporation LTD
    Inventor: William McMullan Hawthorne
  • Patent number: 6016652
    Abstract: A solid/fluid hybrid propulsion system for a projectile launchable from a launch platform includes a container having a fluid reactant therein, an outer casing, and a cartridge. The cartridge is constructed and arranged to be moved between an operative position in which at least a substantial portion of the cartridge is received within the outer casing and an inoperative position in which the cartridge is dissociated from the outer casing. The cartridge includes at least a combustion chamber containing a solid reactant therein, a thrust nozzle proximal to one end of the combustion chamber, an oxidizer distribution plate proximal to the opposite end of the combustion chamber and having an injection nozzle therethrough, and a protective liner extending along at least the length of the combustion chamber and being interposed between the exterior surface of the solid reactant and the interior surface of the outer casing when the cartridge is in the operative position.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: January 25, 2000
    Assignee: Hy-Pat Corporation
    Inventors: Kevin W. Smith, Korey R. Kline, Theodore C. Slack, Jr.
  • Patent number: 6016806
    Abstract: A punctum plug includes a proximal head, a distal body, and a thin-walled flexible shaft between the head and the body. The thin wall of the shaft of the plug is preferably provided with accordion-like folds, thereby permitting the length of the shaft to vary depending upon the degree to which the accordion-like folds are folded or unfolded. In addition, the accordion-like folds permit the thin wall of the shaft to easily bend, permitting the head and body of the plug to lie along different axes. As a result, the plug is shaped to accommodate both relatively long and short vertical puncta and the body of the plug may be angled relative to the head to accommodate a variety of anatomical structures. According to another aspect of the invention, the body of the plug may be provided with a thread which rotationally guides the plug into the small punctal opening when insertional and rotational forces are applied to the plug. As a result, a relatively larger body size may be used.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: January 25, 2000
    Assignee: Eaglevision, Inc
    Inventor: Nicholas J. Webb