Patents by Inventor Lee C. Randall

Lee C. Randall 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).

  • Publication number: 20100188776
    Abstract: A system, a method, and article of manufacture are employed to clean the input/output transducers on tape drives, verified by the tape drives reading alphanumeric information from data tracks and servo tracks of a cleaner tape. An aggressive cleaning frontcoat section of the cleaner tape can be used to provide additional cleaning action, and the cleanliness of the data read elements, data write elements, and the servo heads. A less-abrasive cleaning section may be used to clean less difficult types of contaminants. In this manner, the cleanliness of the data read elements, the data write elements, and the servo heads can be verified. A cleaning section may also be used as a leader section of a self-characterization section. Alternatively, a magnetic data tape section may be included for self-characterization.
    Type: Application
    Filed: April 7, 2010
    Publication date: July 29, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: ROBERT G. BISKEBORN, ERNEST S. GALE, JAMES M. KARP, LEE C. RANDALL, DANIEL J. WINARSKI
  • Patent number: 7724472
    Abstract: A system, a method, and article of manufacture are employed to clean the input/output transducers on tape drives, verified by the tape drives reading alphanumeric information from data tracks and servo tracks of a cleaner tape. An aggressive cleaning frontcoat section of the cleaner tape can be used to provide additional cleaning action, and the cleanliness of the data read elements, data write elements, and the servo heads. A less-abrasive cleaning section may be used to clean less difficult types of contaminants. In this manner, the cleanliness of the data read elements, the data write elements, and the servo heads can be verified. A cleaning section may also be used as a leader section of a self-characterization section. Alternatively, a magnetic data tape section may be included for self-characterization.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: May 25, 2010
    Assignee: International Business Machines Corporation
    Inventors: Robert G. Biskeborn, Ernest S. Gale, James M. Karp, Lee C. Randall, Daniel J. Winarski
  • Publication number: 20080259485
    Abstract: A system, a method, and article of manufacture are employed to clean the input/output transducers on tape drives, verified by the tape drives reading alphanumeric information from data tracks and servo tracks of a cleaner tape. An aggressive cleaning frontcoat section of the cleaner tape can be used to provide additional cleaning action, and the cleanliness of the data read elements, data write elements, and the servo heads. A less-abrasive cleaning section may be used to clean less difficult types of contaminants. In this manner, the cleanliness of the data read elements, the data write elements, and the servo heads can be verified. A cleaning section may also be used as a leader section of a self-characterization section. Alternatively, a magnetic data tape section may be included for self-characterization.
    Type: Application
    Filed: June 18, 2008
    Publication date: October 23, 2008
    Applicant: International Business Machines Corporation
    Inventors: Robert G. Biskeborn, Ernest S. Gale, James M. Karp, Lee C. Randall, Daniel J. Winarski
  • Publication number: 20080247074
    Abstract: A tape library system includes a plurality of conductive track assemblies including at least one linear conductive strip, and at least one guide track. The system further includes a first fiber brush assembly and a second fiber brush assembly separated from each other by a predetermined separation distance, each of the first and second fiber brush assemblies comprising a spring biasing a track wheel, and a fiber brush attached to the fiber brush assembly and in electrical contact with the conductive strip. The fiber brush assembly linearly translates along the conductive track assembly on an axis parallel to the conductive strip.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 9, 2008
    Applicant: International Business Machines Corporation
    Inventors: Shawn M. Nave, George G. Zamora, Lee C. Randall
  • Patent number: 7394618
    Abstract: A system, a method, and article of manufacture are employed to clean the input/output transducers on tape drives, verified by the tape drives reading alphanumeric information from data tracks and servo tracks of a cleaner tape. An aggressive cleaning frontcoat section of the cleaner tape can be used to provide additional cleaning action, and the cleanliness of the data read elements, data write elements, and the servo heads. A less-abrasive cleaning section may be used to clean less difficult types of contaminants. In this manner, the cleanliness of the data read elements, the data write elements, and the servo heads can be verified. A cleaning section may also be used as a leader section of a self-characterization section. Alternatively, a magnetic data tape section may be included for self-characterization.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: July 1, 2008
    Assignee: International Business Machines Corporation
    Inventors: Robert G. Biskeborn, Ernest S. Gale, James M. Karp, Lee C. Randall, Daniel J. Winarski
  • Patent number: 6822820
    Abstract: A data tape drive for recording information on the data tape of a tape cartridge has a transducer head with air bleed slots that define side walls, a tape guide, and a device for detecting damage to the transducer head and tape guide. The damage detection device has a conductor loop that is located along the outer edges of the air bleed slots and tape guide for detecting any brittle fracture damage that may be present. The conductor loop is a thin filament of wire that is preferably attached to the ends of the side walls. When the transducer head or tape guide experiences a fracture, such as a fracture in one of the side walls, the delicate filament breaks and forms an open circuit. The open circuit in the conductor loop is detected by the data tape drive so that remedial actions can be taken.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: November 23, 2004
    Assignee: International Business Machines Corporation
    Inventors: Daniel J. Winarski, Lee C. Randall, Craig A. Klein, Robert G. Emberty
  • Patent number: 6657806
    Abstract: A data tape drive for recording information on the data tape of a tape cartridge has a transducer head with air bleed slots that define side walls, a tape guide, and a device for detecting damage to the transducer head and tape guide. The damage detection device has a conductor loop that is located along the outer edges of the air bleed slots and tape guide for detecting any brittle fracture damage that may be present. The conductor loop is a thin filament of wire that is preferably attached to the ends of the side walls. When the transducer head or tape guide experiences a fracture, such as a fracture in one of the side walls, the delicate filament breaks and forms an open circuit. The open circuit in the conductor loop is detected by the data tape drive so that remedial actions can be taken.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: December 2, 2003
    Assignee: International Business Machines Corporation
    Inventors: Daniel J. Winarski, Lee C. Randall, Craig A. Klein, Robert G. Emberty