Patents by Inventor Donald C. O'Connor

Donald C. O'Connor 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: 8752131
    Abstract: According to one embodiment, maintenance points of a maintenance entity group are identified. The maintenance points comprise end points and intermediate points. A secure connectivity association set is established for the maintenance points. The following is performed for each frame of a number of frames: determining security data of the secure connectivity association set; placing the security data into a frame; and communicating the frame to a maintenance point. The maintenance point is configured to determine whether a frame is acceptable from the security data of the frame.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: June 10, 2014
    Assignee: Fujitsu Limited
    Inventor: Donald C. O'Connor
  • Publication number: 20090276830
    Abstract: According to one embodiment, maintenance points of a maintenance entity group are identified. The maintenance points comprise end points and intermediate points. A secure connectivity association set is established for the maintenance points. The following is performed for each frame of a number of frames: determining security data of the secure connectivity association set; placing the security data into a frame; and communicating the frame to a maintenance point. The maintenance point is configured to determine whether a frame is acceptable from the security data of the frame.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Applicant: Fujitsu Network Communications, Inc.
    Inventor: Donald C. O'Connor
  • Patent number: 5640792
    Abstract: Lighting fixtures which feature indicia illuminated more uniformally and with greater brightness than in conventional lighting fixtures. LEDs which operate at a higher frequency/shorter wavelength, such as blue LEDs, emit light which causes the transformation material to reemit, reradiate or emit light at a lower frequency/longer wavelength with increased brightness and uniformity. In a preferred embodiment of the lighting fixtures, blue LEDs cause the transformation material to emit green light for bright and even illumination of indicia such as letters and chevrons in exit signs, and at a wavelength to which the human eye is serendipitously sensitive.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 24, 1997
    Assignee: National Service Industries, Inc.
    Inventors: Stephen T. Smith, Donald C. O'Shea
  • Patent number: 5151722
    Abstract: A head mounted display is disclosed for providing a monocular or binocular wide field of view. The head mounted display contains a unique configuration and unique folding optics so that it can be worn like a pair of spectacles or goggles. The optics and frame of the goggles are uniquely designed to accommodate different head dimensions.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: September 29, 1992
    Assignee: The Johns Hopkins University
    Inventors: Robert W. Massof, Donald C. O'Shea, Thomas W. Raasch
  • Patent number: 4994945
    Abstract: A lamp for providing uniform luminosity in an area to be illuminated, such as in an operating theatre and the like. The lamp comprises a light source, an infrared filter element, a planar prism field, having a substantial number of radial sectors containing a plurality of transverse, outwardly curved prisms, and a toroidal lens system which controls the divergence of the light emanating from the light source so as to render the light substantially columnate and to direct the light onto the planar prism field, a transparent member beneath the planar prism field to protect the planar prism field from dirt, foreign material and scratches, and a handle extending downwardly from the face of the lamp by which the lamp can be manipulated. The radial sectors are held together in the planar prism field by attachment to one another. As a result, the transparent member can be thin since it is not required to support the planar prism field.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: February 19, 1991
    Assignee: Kirschner Medical Corporation
    Inventors: Donald C. O'Shea, James L. Oliver, James L. Sketo
  • Patent number: 4937715
    Abstract: The present invention relates to a lamp for providing uniform luminosity in an area to be illuminated, such as in an operating theatre and the like, comprising generally (a) a light source, (b) a planar field, said planar field comprising a substantial number of radial sectors containing a plurality of transverse, outwardly curved prisms, and (c) a toroidal lens system which controls the divergence of the light emanating from the light source so as to render the light substantially columnate and direct the light onto the planar field. The present invention also includes structure whereby the radial sectors are held together in the planar field by attachment to one another, such as by tongue-and-groove means, and further includes (d) a transparent member located between the planar field and the area to be illuminated which protects the prism sectors from soil and injury.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: June 26, 1990
    Assignee: Kirschner Medical Corporation
    Inventors: Donald C. O'Shea, James L. Oliver, James L. Sketo
  • Patent number: 4780883
    Abstract: A method for changing the data transmission rates in a synchronous data communication system including a first modem and a second modem coupled together through a transmission channel, the transmission channel including a first path for transmissions from the first modem to the second modem and a second path for transmission from the second modem to the first modem, includes the steps of determining, at the first modem, that the second path of the transmission channel is adequately high in quality to support an increase in transmission rate. Next it is determined, at the second modem, that the first path of the transmission channel is adequately high in quality to support an increase in transmission rate. A training sequence is then transmitted at an increased transmission rate from the second modem to the first modem. Next, a training sequence is transmitted at the increased transmission rate from the first modem to the second modem.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: October 25, 1988
    Assignee: Racal Data Communications Inc.
    Inventors: Donald C. O'Connor, Juan E. Farias, Raul F. Fernandez
  • Patent number: 4385384
    Abstract: A system for diagnosing and controlling operation of a plurality of modems, some located at a central site and others at various remote sites. A processor located at the central site selectively addresses microprocessor test and control units at each modem over a secondary channel. The microprocessor test and control units respond to commands to configure and perform various modem tests, operate autonomously to monitor various alarm conditions, and format status reports and alarm maydays for transmission back to the central processor. The system is capable of performing a wide variety of testing, monitoring and network control functions for a very large network of modems.
    Type: Grant
    Filed: May 19, 1981
    Date of Patent: May 24, 1983
    Assignee: Racal Data Communications Inc.
    Inventors: Arthur H. Rosbury, Judson T. Gilbert, Donald C. O'Connor, Grant A. Newland
  • Patent number: 4163426
    Abstract: The invention relates to a highway safety device and in particular to a device which is constructed and arranged to be removably mounted on the window glass of an automobile such that it extends laterally from the automobile so that it may be readily seen by passing motorists. Briefly, the present device comprises a mounting base and a pole extended from the base. A light is mounted on the end of the pole and a fluorescent flag mounted beneath the light whereby passing motorists may easily see that the motorist is in distress and come to his aid.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: August 7, 1979
    Inventor: Donald C. O'Neill