Patents by Inventor Donald A. Clarke

Donald A. Clarke 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: 10951657
    Abstract: A remote attestation system for a computer network includes an attestation operations subsystem configured to manage attestation procedures for the remote attestation system, and an attestation server pool including a plurality of attestation servers. The plurality of attestation servers is configured to perform attestation of at least one host in a data center. The system further includes an attestation state database configured to store a state of attestation of the at least one host, an attestation policy database configured to store at least one operator policy of the computer network, and an end-user service portal configured to provide access to the remote attestation system by users of the computer network.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 16, 2021
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Igor Faynberg, Donald Clarke, Steven John Goeringer
  • Patent number: 10693807
    Abstract: A method for mediating resource allocation includes a step of receiving from at least one first computation module, a first proposed resource allocation for completing a computational task. The method further includes a step of comparing the received first proposed resource allocation to at least one of a predetermined resource allocation criteria and at least one second proposed resource allocation received from at least one second computation module, and a step of determining a resource allocation instruction based, at least in part, on a result of the step of comparing.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: June 23, 2020
    Assignee: Cable Television Laboratories, Inc
    Inventor: Donald Clarke
  • Publication number: 20180213003
    Abstract: A remote attestation system for a computer network includes an attestation operations subsystem configured to manage attestation procedures for the remote attestation system, and an attestation server pool including a plurality of attestation servers. The plurality of attestation servers is configured to perform attestation of at least one host in a data center. The system further includes an attestation state database configured to store a state of attestation of the at least one host, an attestation policy database configured to store at least one operator policy of the computer network, and an end-user service portal configured to provide access to the remote attestation system by users of the computer network.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 26, 2018
    Inventors: Igor FAYNBERG, Donald CLARKE, Steven John GOERINGER
  • Publication number: 20170134307
    Abstract: A method for mediating resource allocation includes a step of receiving from at least one first computation module, a first proposed resource allocation for completing a computational task. The method further includes a step of comparing the received first proposed resource allocation to at least one of a predetermined resource allocation criteria and at least one second proposed resource allocation received from at least one second computation module, and a step of determining a resource allocation instruction based, at least in part, on a result of the step of comparing.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 11, 2017
    Inventor: Donald Clarke
  • Publication number: 20130158439
    Abstract: A method of permanent impairment assessment of a person's upper limb and/or hand is implemented using a proprietary computer program, and comprises the step of displaying a digital image of the person's injured limb and/or hand 24 and of their uninjured limb and/or hand 22 on a visual display screen. A measurement tool 20 is provided on-screen for measuring the extent of injury, wherein the measurement tool can be moved over the digital image of both hands. The extent of injury of the injured limb and/or hand is measured by moving the measurement tool 20 so as to overlay the injured limb and/or hand 24. A value for the degree of impairment can be obtained using this measurement.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 20, 2013
    Inventor: Steven Donald CLARKE
  • Patent number: 7207671
    Abstract: An air flow restriction device relates to an ink jet printhead enclosure with body, a load supportable moveable lid with an opening disposed on the body, and a chamber within the body. Continuous web media is disposed in the chamber with at least one ink jet printhead located above the continuous web media within the chamber. A high efficiency air filter with a fan is located within the opening of the moveable lid and the filter with fan flows continuous clean filtered air into the enclosure, bathing the ink jet printhead and the continuous web media in clean filtered air. An air flow restriction device is placed in the side of the chamber below the continuous web media creating positive pressure in the chamber when the fan and filter floods the chamber with the clean filtered air, thereby reducing particle contamination in the chamber by a factor of at least ten.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: April 24, 2007
    Assignee: Eastman Kodak Company
    Inventors: Brian G. Morris, Donald Clarke Grant, Thomas Alan Gajus
  • Patent number: 5206700
    Abstract: A method for creating a retroreflective image of a surface (or transparent medium) is provided where the retroreflective image is produced by illuminating an area of the surface with light which is reflected therefrom to a retroreflector which returns this light to the surface area. At the surface area, the retroreflected light is then reflected again and imaged to thus form the retroreflected image. In one embodiment, a broad light source is used to image a secondary image of the surface. In another embodiment, the light field produced by the surface is larger than the retroreflective element or group of elements which are then moved. In still another embodiment, a single retroreflective element is used together with a divergent light source.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: April 27, 1993
    Assignee: Diffracto, Ltd.
    Inventors: Rodger Reynolds, Donald A. Clarke, Timothy R. Pryor
  • Patent number: 5168322
    Abstract: This invention relates to an electro-optical technique which senses form type and other defects on surfaces such as sheet metal or plastic panels. Method and apparatus are disclosed for allowing the inspection of the entire surface of interest from a single point of view while reducing the complexity of defects' optical signatures to simplify their subsequent analysis.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: December 1, 1992
    Assignee: Diffracto Ltd.
    Inventors: Donald A. Clarke, Rodger L. Reynolds, Timothy R. Pryor
  • Patent number: 5074661
    Abstract: Methods for improving and calibrating a retroreflection defects determination system are disclosed. The retroreflection system includes a light source which directs light to an area of a surface such that the light is reflected therefrom, a retroreflective member positioned such that the reflected light from the surface area impinges thereon and is thus returned to the surface area and re-reflected therefrom and an imaging device whereby the re-reflected light is imaged as a retroreflection image and scanned for intensity variations. In the identifying method, the retroreflective member of the system has a divergence angle, and the imaging step is repeated after the divergence angle has been appropriately changed. According to the calibrating methods, a first retroreflection image of a system is obtained. Then, one of the test conditions of the system is changed or the test surface is changed. The subsequent retroreflection image is then compared to the first in order to calibrate the system.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: December 24, 1991
    Assignee: Diffracto Ltd.
    Inventors: Rodger Reynolds, Donald A. Clarke, Timothy R. Pryor
  • Patent number: 5004339
    Abstract: A method of determining physical characteristics of a surface. Light or other electromagnetic radiation is directed onto a first portion of a surface and the reflected radiation is received such as by a photodiode. The radiation is also directed onto at least two further portions of the surface and located on either side of the proximate to the first portion. The radiation reflected by the further portions is also received. The radiation reflected from the first portion is compared with the radiation reflected from the two further portions. The radiation and comparison steps are repeated and the comparisons are used to determine a physical characteristic of the surface, such as the presence of one or more flaws. In another embodiment, light or other electromagnetic radiation is used to determine object dimension, such as bore dimension.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: April 2, 1991
    Assignee: Diffracto Ltd.
    Inventors: Timothy R. Pryor, Omer L. Hageniers, Walter J. Pastorius, Nicholas Liptay-Wagner, Donald A. Clarke
  • Patent number: 4920385
    Abstract: This invention relates to electro-optical sensing of form type and other defects on surfaces such as sheet metal or plastic panels. Method and apparatus are disclosed for detection and quantification of defects such as dents, creases, low spots, flat spots, etc. which are a result of the manufacturing, material handling and assembly process. Surfaces of interest are generally those of automobile body panels, (e.g. hoods, fenders), refrigerator panels, furniture panels, and aircraft panels. Similar applications exist to dies and other formed metallic or plastic parts. Both automatic and human visual methods and apparatus are disclosed. The disclosed invention is also effective on paint defects such as orange peel encountered in automotive and other applications. Assemblies of panels, such as car bodies may also be inspected using the invention, and both fixed and moving (e.g. robotic) sensor versions are disclosed.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: April 24, 1990
    Assignee: Diffracto Ltd.
    Inventors: Donald A. Clarke, Rodger L. Reynolds, Timothy R. Pryor
  • Patent number: 4907888
    Abstract: The invention concerns optical non-destructive test of materials using surface distortions detected by light which is reflected from the surface, retroreflected back to the surface and thence to form an image containing a greatly enhanced view of local deformation. In addition, the method is usable for determining surface characteristics of membranes and the like which can be influenced by sound and other wave energy from tested members and other sources and objects.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: March 13, 1990
    Assignee: Diffracto Ltd.
    Inventors: Donald A. Clarke, Rodger L. Reynolds, Timothy R. Pryor
  • Patent number: 4863268
    Abstract: Disclosed are improvements in the surface inspection method and apparatus invention of our copending application "Panel Surface Flaw Inspection", Ser. No. 579,971, U.S. Pat. No. 4,629,319, which has now come to be described as "DiffractoSight". Particularly disclosed are semi and full automatic techniques for quantifying and locating localized surface distortions. Applications for determination of scratches, paint finish defects and other surface problems are also described.The primary area of application is to cosmetic defects on automobile bodies, appliances, and furniture, and the dies, molds and models and other surfaces used in their manufacture.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: September 5, 1989
    Assignee: Diffracto Ltd.
    Inventors: Donald A. Clarke, Rodger Reynolds, Timothy R. Pryor
  • Patent number: 4686374
    Abstract: A method an apparatus are provided for inspecting the surface of objects such as panels for automobile vehicles wherein the surface of the object is sprayed with an oil mist or the like to increase the reflectivity thereof. The surface is then illuminated with light so that the light image reflected therefrom is formed on a light detector such as a photodiode array. The output of the light detector is analyzed to determine surface features of the object such as "dings" and dents therein.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: August 11, 1987
    Assignee: Diffracto Ltd.
    Inventors: Nicholas Liptay-Wagner, Roland Renaud, Timothy R. Pryor, Donald A. Clarke
  • Patent number: 4629319
    Abstract: This invention relates to electro-optical sensing of form type and other defects on surfaces such as sheet metal or plastic panels. Method and apparatus are disclosed for detection and quantification of defects such as dents, creases, low spots, flat spots, etc. which are a result of the manufacturing, material handling and assembly process. Surfaces of interest are generally those of automobile body panels, (e.g. hoods, fenders), refrigerator panels, furniture panels, and aircraft panels. Similar applications exist to dies and other formed metallic or plastic parts. Both automatic and human visual methods and apparatus are disclosed. The disclosed invention is also effective on paint defects such as orange peel encountered in automotive and other applications. Assemblies of panels, such as car bodies may also be inspected using the invention, and both fixed and moving (e.g. robotic) sensor versions are disclosed.
    Type: Grant
    Filed: February 14, 1984
    Date of Patent: December 16, 1986
    Assignee: Diffracto Ltd.
    Inventors: Donald A. Clarke, Rodger L. Reynolds, Timothy R. Pryor
  • Patent number: 4585947
    Abstract: This invention relates to new and useful electro-optical methods and apparatus using photodetector arrays for measurement of parts and other objects in industrial environments. Several particularly useful optical embodiments are illustrated together with desirable electronic circuitry for improving the accuracy of practical systems of this type.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: April 29, 1986
    Assignee: Diffracto, Ltd.
    Inventors: Nicholas Liptay-Wagner, Roland Renaud, Timothy R. Pryor, Donald A. Clarke
  • Patent number: 4506980
    Abstract: A method of determining physical characteristics of a surface. Light or other electromagnetic radiation is directed onto a first portion of a surface and the reflected radiation is received such as by a photodiode. The radiation is also directed onto at least two further portions of the surface and located on either side of and proximate to the first portion. The radiation reflected by the further portions is also received. The radiation reflected from the first portion is compared with the radiation reflected from the two further portions. The radiation and comparison steps are repeated and the comparisons are used to determine a physical characteristic of the surface, such as the presence of one or more flaws. In another embodiment, light or other electromagnetic radiation is used to determine object dimension, such as bore dimension.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: March 26, 1985
    Assignee: Diffracto Ltd.
    Inventors: Timothy R. Pryor, Omer L. Hageniers, Walter J. Pastorius, Nicholas Liptay-Wagner, Donald A. Clarke
  • Patent number: 4493554
    Abstract: A method of determining physical characteristics of a surface. Light or other electromagnetic radiation is directed onto a first portion of a surface and the reflected radiation is received such as by a photodiode. The radiation is also directed onto at least two further portions of the surface and located on either side of and proximate to the first portion. The radiation reflected by the further portions is also received. The radiation reflected from the first portion is compared with the radiation reflected from the two further portions. The radiation and comparison steps are repeated and the comparisons are used to determine a physical characteristic of the surface, such as the presence of one or more flaws. In another embodiment, light or other electromagnetic radiation is used to determine object dimension, such as bore dimension.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: January 15, 1985
    Assignee: Diffracto
    Inventors: Timothy R. Pryor, Omer L. Hageniers, Walter J. Pastorius, Nicholas Liptay-Wagner, Donald A. Clarke
  • Patent number: 4465374
    Abstract: Method and apparatus for determining dimensional information concerning an object. A ring of light is directed onto an object surface such that at least a portion of the ring of light is incident upon the object surface. An image is formed of the incident light reflected from the surface. The width or position of the image is determined. The location of the surface is determined from the image width or position, and dimensional information about the object is determined from the surface location.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: August 14, 1984
    Assignee: Diffracto Ltd.
    Inventors: Timothy R. Pryor, Omer L. Hageniers, Walter J. Pastorius, Nicholas Liptay-Wagner, Donald A. Clarke
  • Patent number: 4394683
    Abstract: A method and apparatus are provided for analyzing the light pattern produced on a photodetector array. The signal produced by the array is filtered with a low pass filter and the output of the filter is differentiated to obtain either the first or second derivative of the filtered signal for one or more points in the pattern. The zero crossing of the differentiated signal is detected and the zero crossing point is timed relative to a further point, e.g., the start of the scan of the array, so as to obtain an output related to the position of the corresponding point or points in the pattern.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: July 19, 1983
    Assignee: Diffracto Ltd.
    Inventors: Nicholas Liptay-Wagner, Roland Renaud, Timothy R. Pryor, Donald A. Clarke