Patents Assigned to General Dynamics
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Patent number: 6714085Abstract: A PLL-type frequency synthesizer (10) in which a loop filter (24) state is recorded during an earlier hop to a given frequency then assigned back to the loop filter (24) during a subsequent hop to the same frequency is disclosed. The state is recorded through an A/D converter (48) and assigned through a D/A converter (60). Offset and linearity error is compensated in a compensation circuit (54) so that the state subsequently assigned to the loop filter (24) accurately matches the state that was previously measured for recording. Reference frequency and output signal dividers (16, 40) are both immediately initialized at a hop boundary (82) so that the signals compared by a phase comparator (20) are forced into a phase-matched condition.Type: GrantFiled: October 24, 2002Date of Patent: March 30, 2004Assignee: General Dynamics Decision Systems, IncInventor: Bruce Alan Fette
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Patent number: 6715007Abstract: A flow of data (26) is regulated in a communication system (20). A data rate is established in each of a data source (24) and a data sink (28). The data (26) is transmitted by the data source (24) and written into a buffer (32) at the source data rate, then read from the buffer (32) and received by the data sink (28) at the sink data rate. The level (62) of data (26) in the buffer (32) is monitored, and a rate-control signal (74) is dispatched to either the data source (24) or sink (28) when it is determined the buffer data level (62) is decreasing or increasing while at a lower or upper data-level threshold (66, 68), respectively. One of the data rates is adjusted in response to a rate-control signal (74).Type: GrantFiled: July 13, 2000Date of Patent: March 30, 2004Assignee: General Dynamics Decision Systems, Inc.Inventors: Brent Ashley Williams, John Abel, Keith Matthew Nolan, Keith Palermo, Scott Demarest
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Patent number: 6711127Abstract: Detecting attempted intrusions in a telecommunications signaling network and assessing the vulnerability of the network to attempted intrusions. Intrusion rules are applied to received messages in the network in real-time, using a known protocol for the network, in order to detect anomalies tending to indicate an attempted intrusion. In order to assess the vulnerability of the network, vulnerability rules are applied to rankings of particular parameters relating to elements in the network. The rankings provide an indication of susceptibility of a network element to an attempted intrusion relative to other network elements.Type: GrantFiled: July 31, 1998Date of Patent: March 23, 2004Assignee: General Dynamics Government Systems CorporationInventors: David B. Gorman, Gregory J. Catherine, Richard Peragine, Beverly Conrad, G. Duane Gearhart, David Moy
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Patent number: 6701127Abstract: A transmitter (400) offsets the transmission time and frequency of a burst transmission such that uncertainties in reception time and reception frequency are reduced. The transmitter includes an ephemeris store (454) that includes ephemeris data for one or more possible intended receivers (130). Orbits of possible intended receivers are propagated, and an intended receiver is selected. Transmission time offsets are generated as a function of transmitter location and intended receiver location. Transmission frequency offsets are substantially equal to a Doppler frequency derived from the transmitter velocity and the intended receiver velocity. Guard times and guard bands are reduced in size, resulting in greater available communications bandwidth and simpler receiver designs.Type: GrantFiled: December 16, 1999Date of Patent: March 2, 2004Assignee: General Dynamics Decision Systems, Inc.Inventors: Kenneth Solomon Wreschner, Eric Jay Clelland
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Patent number: 6697300Abstract: Method and apparatus for determining the positioning of volumetric detection array lines. In the case of a sonar array, ultrasonic frequencies are used. Transmitter subsystems including ceramic transducers, and sensors such as hydrophones, are deployed on the lines of the array and code division multiple access (CDMA) type pseudo-random numbers are used to identify each transmitter. Transit times between transducers and sensors, as determined by detector electronics, are sent to a ship-board receiver in any of various formats, so that array line position can be determined.Type: GrantFiled: September 13, 2002Date of Patent: February 24, 2004Assignee: General Dynamics Advanced Information Systems, Inc.Inventor: Michael D. Holt
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Publication number: 20040032028Abstract: The present invention provides a number of techniques for laminating and interconnecting multiple high-layer-count (HLC) substrates to form a multilayer package or other circuit component. A solder bump may be formed on the conductive pad of at least one of two HLC substrates. The solder bump preferably is formed from an application of solder paste to the conductive pad(s). An adhesive film may be positioned between the surfaces of the HLC substrates having the conductive pads, where the adhesive film includes an aperture located substantially over the conductive pads such that the conductive pads and/or solder bumps confront each other through the aperture. The HLC substrates then may be pressed together to mechanically bond the two substrates via the adhesive. The solder bump(s) may be reflowed during or after the lamination to create a solder segment that provides an electrical connection between the two conductive pads through the aperture in the adhesive film.Type: ApplicationFiled: August 15, 2003Publication date: February 19, 2004Applicant: General Dynamics Advanced Information Systems, IncInventors: Deepak K. Pai, Ronald R. Denny
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Publication number: 20040021371Abstract: An embodiment of the present invention comprises apparatus for and method of managing and distributing power from a supply of limited power. A plurality of outlets is connected to a plurality of power units. In accordance with the present invention, an amount of power drawn by the outlets is measured and compared to a first predetermined electrical power level and a second predetermined electrical power level. When the amount of measured power being drawn exceeds the second predetermined maximum electrical power level, all outlets are disabled. When the amount of measured power being drawn is less than both the first predetermined electrical power level and the second predetermined electrical power level, all outlets are enabled. When the amount of measured power being drawn exceeds the first predetermined electrical power level, outlets currently in use by a power utilizing device are enabled while outlets not currently in use by a power utilizing device are disabled.Type: ApplicationFiled: February 4, 2003Publication date: February 5, 2004Applicant: General Dynamics OTS (Aerospace), Inc.Inventor: Jeffrey Jouper
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Patent number: 6674808Abstract: A post-HPA filter rejection equalizer system and method locally equalizes post-HPA filtering. A predistorter (20) uses a phase error to control the predistortion, and an equalizer (46) uses a magnitude error to control the equalization. The equalizer samples the HPA output multiple occurrences in a burst fashion. The equalized signal is then used to determine phase and magnitude errors. The phase errors (54) are used to update the predistorter (20), and the magnitude errors (52) are used to update the analytic equalizer.Type: GrantFiled: December 28, 1999Date of Patent: January 6, 2004Assignee: General Dynamics Decision Systems, Inc.Inventors: Richard Steven Griph, Albert Howard Higashi
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Patent number: 6671809Abstract: Software execution control in which a series of two-way rule checks is performed between software-defined communications system component records to ensure and maintain system security and integrity. A system platform (20) performs a series of two-way rule checks between records of a system platform (20) and an application (22) called by the platform (20), between records of the called application (22) and a module (24) that defines the called application (22), and between the records of the module (24) that defines the called application (22) and the platform (20). Both the called application (22) and the module (24) that defines the called application (22) are then instantiated if the two-way rule checks are successful. Because the rule checks are performed in a two-way manner, restrictions such as licensing and source restrictions may be placed not only on system modules (24-30), but also on the applications (22) using the modules (24-30), thereby enabling higher levels of system security to be achieved.Type: GrantFiled: May 10, 2000Date of Patent: December 30, 2003Assignee: General Dynamics Decision Systems, Inc.Inventors: Richard Allen Perona, Clifford Andrew Williams
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Publication number: 20030234819Abstract: The inventions relate to systems and methods for providing interactive media content with an easy-to-use graphical user interface. The inventions include simplifying improvements to the user interface of a networked system of servers providing advertising, games, internet, video, and other services. Improvements include a plurality of panels for the simultaneous display of a plurality of media, a promotion scheduler for controlling the content of the panels, a simplified means for making purchases, and a simplified means for navigating through layers of multiple options.Type: ApplicationFiled: June 19, 2003Publication date: December 25, 2003Applicant: General Dynamics C4 Systems, Inc.Inventors: Elizabeth Aries Daly, Peter Dominic Brandano, Christopher John Brophy, Steven Michael Bryer
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Patent number: 6662726Abstract: A subcaliber kinetic energy penetrator has first and second portions formed of dense material and secured to each other. The first portion, located ahead of the second portion preferably represents between 9% and 15% of the penetrator mass and a similar percentage of the combined lengths of the two portions. The first portion is formed of a material effective to produce a relatively large hole in an explosive reactive armor faceplate. The second portion is preferably formed from material selected to best perforate basal armor.Type: GrantFiled: March 8, 2000Date of Patent: December 16, 2003Assignee: General Dynamics Ordnance and Tactical Systems, Inc.Inventor: Edwin G. Steiner
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Patent number: 6665469Abstract: A device for injecting light from one of a first group of optical fibers into a corresponding one of a second group of optical fibers includes a holder for locating each of the fibers in the first and second groups, a clamp for securing fibers in the second group to the holder, and a depressor for laterally displacing each of the fibers in the second group, thus forming a bend in each of the fibers in the second group. The maximum curvature in the bend occurs where the fibers in the second group exit the clamp. Light is injected from fibers in the first group into corresponding fibers in the second group at the point of maximum curvature. An optical gel may be used to used to promote optical coupling between fibers in the first group and fibers in the second group. The optical fibers in the second group may include a lens for focusing the light to be injected. The device can function in reverse to extract light from fibers in the second group into fibers in the first group.Type: GrantFiled: January 2, 2002Date of Patent: December 16, 2003Assignee: General Dynamics Advanced Information Systems, Inc.Inventors: Kenneth R. Schroll, James P. Waters, Janet Armstrong
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Patent number: 6665519Abstract: A transmitter (400) offsets the transmission time and frequency of a burst transmission such that uncertainties in reception time and reception frequency are reduced. The transmitter includes an ephemeris store (454) that includes ephemeris data for one or more possible intended receivers (130). Orbits of possible intended receivers are propagated, and an intended receiver is selected. Transmission time offsets are generated as a function of transmitter location and intended receiver location. Transmission frequency offsets are substantially equal to a Doppler frequency derived from the transmitter velocity and the intended receiver velocity. Guard times and guard bands are reduced in size, resulting in greater available communications bandwidth and simpler receiver designs.Type: GrantFiled: January 4, 2002Date of Patent: December 16, 2003Assignee: General Dynamics Decision Systems, Inc.Inventors: Kenneth Solomon Wreschner, Eric Jay Clelland
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Patent number: 6661842Abstract: Apparatus and methods are provided for encoding an input frame of a video sequence for transmission over a channel. The method and apparatus decompose the input frame into multiple subbands and divide the multiple subbands into multiple blocks corresponding to a region of the input frame. The blocks in the highest frequency subbands of the multiple blocks are selected based upon a luminance component of the input frame and the multiple blocks in the highest frequency subbands are classified into a multiple classes to provide a multiple class labels. The multiple class labels are collected to form a subband class map for each of the multiple blocks in the highest frequency subbands and a global class map is constructed from a majority evaluation of the subband map for each of the multiple blocks. The multiple blocks within the multiple subbands are grouped which have one of the class labels to form multiple subband class sequences.Type: GrantFiled: September 22, 2000Date of Patent: December 9, 2003Assignee: General Dynamics Decision Systems, Inc.Inventor: Glen Patrick Abousleman
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Patent number: 6655293Abstract: Tracer visibility of APFSDS projectiles can be enhanced through a combination of increased steady state spin rate, reduced muzzle obscuration, and optimized airflow over the stabilizing fin geometry of the sub-projectile. The preferred means to increase steady state spin rates of the sub-projectile is to incline or deflect the fin blade tip portion, creating a larger, hotter burning, tracer plume.Type: GrantFiled: March 12, 2001Date of Patent: December 2, 2003Assignee: General Dynamics Ordnance and Tactical Systems, Inc.Inventors: Guy H. Henry, Donald E. Dillard, Rao Yalamanchili, Dennis J. Conway, Rick D. Wright, Gary C. Fleming, Alan N. Cohen, Roger E. Joinson, Gene Venable, Thomas Doris, Albert S. Tatka, Jr.
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Patent number: 6658112Abstract: A voice decoder detects channel errors and loss of cryptographic synchronization using the change in spectral energy between sequential frames. The change in energy between frames is determined between corresponding LSP's of said successive frames and summed together. A running average of the change in energy for a predetermined number of frames is maintained. Current voice frames are eliminated based on the difference between the change in energy associated with the current frame and the running average. Accordingly, offensive audio associated with such channel errors or cryptographic synchronization loss is eliminated.Type: GrantFiled: August 6, 1999Date of Patent: December 2, 2003Assignee: General Dynamics Decision Systems, Inc.Inventors: David L. Barron, William Chunhung Yip, Paul Lopez Kennedy
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Patent number: 6651988Abstract: An actuator for use in an active mount system for reducing vibration transmission from a vibrating component to a support structure. The actuator is disposed in a housing that is attached to the vibrating component or the support structure. The actuator includes a piston moveably disposed in a casing, and a piston rod assembly that is connected to the other one of the vibrating component or the support structure. A seal assembly, disposed either in a groove in the piston or in a groove in the casing, provides a seal between the piston and casing. The seal assembly includes an annular seal member comprising polytetrafluoroethylene resin, backing rings on each side of the seal member, and an annular compression spring in the groove between one of the backing rings and one edge of the groove.Type: GrantFiled: December 27, 2000Date of Patent: November 25, 2003Assignee: General Dynamics Advanced Information Systems, Inc.Inventors: Gregory Waston Terpay, George Gustave Zipfel
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Patent number: 6644590Abstract: An active mount is provided for use in a rotary wing aircraft between each of the gearbox and airframe mounting locations for mechanically suspending the airframe from the gearbox. The active mount comprises first and second linear hydraulic actuators each having a principal axis. The length of the actuators is variable along the principal axis for providing relative movement between the airframe and the gearbox. The principal axes of the actuators are adapted to lie in the directional planes of the primary forces necessary for supporting the airframe and acting on the transmission gearbox mounting locations for providing movement of the gearbox relative to the airframe in the planes at a frequency for reducing the transfer of vibration through the active mount to the airframe. A system for reducing vibration in the rotary wing aircraft further comprises a hydraulic system for supplying a controlled flow of pressurized hydraulic fluid to the actuators.Type: GrantFiled: September 14, 2001Date of Patent: November 11, 2003Assignee: General Dynamics Advanced Information Systems, Inc.Inventors: Gregory Weston Terpay, George G. Zipfel, William Welsh
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Patent number: 6644168Abstract: A system and method for absorbing a recoil force in a weapon is provided. A recoil mechanism includes a housing that contains a hydraulic fluid and has an inner wall defining a first chamber and a second chamber within the housing. The inner wall has at least one orifice that connects the first and second chambers. A piston is slidably disposed within the first chamber of the housing. A shuttle valve is slidably disposed within the first chamber of the housing and has at least one orifice configured to align with the at least one orifice in the inner wall of the housing to define a fluid passageway between the first and second chambers. A shuttle valve control is operable to generate a magnetic field in response to an applied current to control the movement of the shuttle valve to thereby control the size of the fluid passageway between the first and second chambers.Type: GrantFiled: August 12, 2002Date of Patent: November 11, 2003Assignee: General Dynamics Armament and Technical Products, Inc.Inventors: Jerry M. Browne, Kenneth Wynes, Gary Bowrey
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Publication number: 20030201780Abstract: A system for locating parallel arcing faults in a set of wires is described. The system includes three devices that can be used in combination or alone. A first device applies a current to a wire while grounding the remaining wires of the set of wires so as to cause the parallel arc, the first device being adapted to locate the parallel arcing fault using one or more leading edges of one or more electromagnetic waveforms being conducted on the wire under test. A second device comprises a controller and two or more receivers, each receiver being electrically coupled to the controller for receiving one or more leading edges of one or more electromagnetic waveforms being radiated by the parallel arcing fault. A third device senses one or more leading edges of one or more electromagnetic waveforms as well as the ultrasonic emissions emitted from the parallel arcing fault.Type: ApplicationFiled: May 16, 2003Publication date: October 30, 2003Applicant: General Dynamics OTS (Aerospace), Inc.Inventor: Frederick K. Blades