Patents by Inventor Stephen M. Sohn

Stephen M. Sohn 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: 8666248
    Abstract: A photonic-based distributed network switch and method where the switch is designed to reduce or filter optical data frames entering a port of the switch so that only data frames that are appropriate for the port are forwarded from the port. This reduces the amount of data that needs to be handled by the port interface, which is especially important where the port may be using legacy interface technology that may be incapable of handling the volume of data entering the port.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: March 4, 2014
    Assignee: Lockheed Martin Corporation
    Inventors: Brian L. Uhlhorn, Stephen M. Sohn, Howard J. Schantz
  • Patent number: 8467682
    Abstract: A photonic-based distributed network switch that utilizes multiple photonic broadcast stars and separate optical transmitters to improve overall reliability, allow load balancing, and provide failover for the network switch and the network with which the switch is used.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: June 18, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Brian L. Uhlhorn, Howard J. Schantz, Stephen M. Sohn
  • Publication number: 20120106954
    Abstract: A photonic-based distributed network switch is described that updates independent ports of the switch in parallel based on information that flows through the ports to and from a passive photonic broadcast star. Because each port sees the same information via the passive photonic broadcast star, each port can harvest information from the data flow in parallel and update itself based on the harvested information.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 3, 2012
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Stephen M. Sohn, Brian L. Uhlhorn, Howard J. Schantz
  • Publication number: 20120106961
    Abstract: A photonic-based distributed network switch and method where the switch is designed to reduce or filter optical data frames entering a port of the switch so that only data frames that are appropriate for the port are forwarded from the port. This reduces the amount of data that needs to be handled by the port interface, which is especially important where the port may be using legacy interface technology that may be incapable of handling the volume of data entering the port.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 3, 2012
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Brian L. Uhlhorn, Stephen M. Sohn, Howard J. Schantz
  • Publication number: 20120106960
    Abstract: A photonic-based distributed network switch that utilizes multiple photonic broadcast stars and separate optical transmitters to improve overall reliability, allow load balancing, and provide failover for the network switch and the network with which the switch is used.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Brian L. Uhlhorn, Howard J. Schantz, Stephen M. Sohn
  • Patent number: 8140655
    Abstract: A computing architecture and method which provides application software or hardware the ability to dynamically allocate subsystem resources to construct computing enclaves. The architecture manages the configuration of and controls access to the subsystem resources. Subsystem resources are assigned to enclaves and additional subsystem resources are able to be added or removed as needs fluctuate. Removed subsystem resources are sanitized and returned to a resource pool, and are available for allocation. This computing architecture and method allows the creation of dynamic computing systems.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: March 20, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Howard J. Schantz, Stephen M. Sohn, Brent C. Anderson
  • Patent number: 5530450
    Abstract: A process provides radar scan conversion from radar amplitude data in polar coordinates to rectangular coordinates by a digital computer which receives (r,.theta.) coordinate amplitude data from a radar receiver and which supplies (x,y) coordinate amplitude which covers a rectangular-shaped display area of a monitor display. A software program generates an aggregate radial scan pattern that consists of a plurality of radials each of which have active lengths that span one or more of a plurality of selected zones of the display such that as the average azimuthal resolution associated with each zone increases, the number of generated radials match the average azimuthal resolution of the display for each zone. The display can be generated as an offset display relative to the antenna center of a display that has no offset.
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: June 25, 1996
    Assignee: Loral Corporation
    Inventors: Stephen M. Sohn, Douglas A. Peterson
  • Patent number: 5519401
    Abstract: A pseudo-code representation and a C language representation of a scan converter system whereby radar amplitude data specified in polar coordinates may be displayed on a computer monitor display controlled by rectangular coordinates is provided. The invention utilizes a look-up table that is built using a two-phase algorithm. The look-up table is set into an initial state after which a mapping process takes place in which all of the (x,y) coordinate values covering the display area are inversely projected to the nearest (r,.theta.) coordinate values using trigonometric and approximation procedures. Since more than one (x,y) value may map to the same (r,.theta.) value, these values are linked together to form a patch. All of the (r,.theta.) coordinates will not be hit in this mapping process. Therefore, a second phase of projection occurs. Each (r,.theta.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: May 21, 1996
    Assignee: Loral Corporation
    Inventors: Michael E. Farmer, Stephen M. Sohn
  • Patent number: 5483066
    Abstract: A polarization diverse image sensor identifies different objects of green vegetation and produces a vegetation index of such vegetation. The sensor defines the degree, angle and intensity of polarization. This information is stored in a memory for producing an image memory map of the polarized pixel data. Differential pixel data is computed and then employed to generate a new polarization difference image which is further processed by histogramming slices of the new image to obtain a segmented image of the green vegetation. The attributes of the segmented image are then compared with segmented data which was previously stored in a model base library to obtain a match or no match of the identification of the green vegetation. If match is obtained, a controller issues control signals which controls the spray heads and chemicals carried on a moving spray platform. However, if no match is obtained, the original raw data is labeled, formatted and stored in the model base library as reference data.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: January 9, 1996
    Assignee: Loral Corporation
    Inventors: Firooz A. Sadjadi, Stephen M. Sohn