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).
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Patent number: 8752131Abstract: 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: GrantFiled: April 30, 2008Date of Patent: June 10, 2014Assignee: Fujitsu LimitedInventor: Donald C. O'Connor
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Publication number: 20090276830Abstract: 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: ApplicationFiled: April 30, 2008Publication date: November 5, 2009Applicant: Fujitsu Network Communications, Inc.Inventor: Donald C. O'Connor
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Patent number: 5640792Abstract: 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: GrantFiled: June 7, 1995Date of Patent: June 24, 1997Assignee: National Service Industries, Inc.Inventors: Stephen T. Smith, Donald C. O'Shea
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Patent number: 5151722Abstract: 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: GrantFiled: November 5, 1990Date of Patent: September 29, 1992Assignee: The Johns Hopkins UniversityInventors: Robert W. Massof, Donald C. O'Shea, Thomas W. Raasch
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Patent number: 4994945Abstract: 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: GrantFiled: December 22, 1989Date of Patent: February 19, 1991Assignee: Kirschner Medical CorporationInventors: Donald C. O'Shea, James L. Oliver, James L. Sketo
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Patent number: 4937715Abstract: 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: GrantFiled: January 26, 1989Date of Patent: June 26, 1990Assignee: Kirschner Medical CorporationInventors: Donald C. O'Shea, James L. Oliver, James L. Sketo
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Patent number: 4780883Abstract: 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: GrantFiled: June 26, 1986Date of Patent: October 25, 1988Assignee: Racal Data Communications Inc.Inventors: Donald C. O'Connor, Juan E. Farias, Raul F. Fernandez
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Patent number: 4385384Abstract: 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: GrantFiled: May 19, 1981Date of Patent: May 24, 1983Assignee: Racal Data Communications Inc.Inventors: Arthur H. Rosbury, Judson T. Gilbert, Donald C. O'Connor, Grant A. Newland
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Patent number: 4163426Abstract: 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: GrantFiled: March 23, 1978Date of Patent: August 7, 1979Inventor: Donald C. O'Neill