Patents by Inventor Donald L. Pearl

Donald L. Pearl 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: 5910878
    Abstract: Electrical devices such as leaded electronic components, i.e., components with extended input/output leads, are loaded in a magazine that protects them from electrostatic discharge. Each component is held in a component holder with a conductive shorting or discharge pad, comprising a bundle of conductive filaments within a conductive foraminous web that can be moved into contact with the leads to protect them from electrostatic discharge, and moved away from the leads to allow access for testing or processing. At a testing or processing station, the magazine is placed on a mating base and the devices are supported and positioned by supports on the magazine and base. Upon completion of a testing or processing sequence, the magazine can be separated from the base and moved to another testing or processing station, where the magazine is placed on another base.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: June 8, 1999
    Assignee: International Business Machines Corporation
    Inventors: Alfred A. Mello, Donald L. Pearl
  • Patent number: 5877882
    Abstract: An optical connection means is provided for connecting an optical docking station to an information handling system and to one or more peripheral devices. The optical connection means comprises two components that are not mechanically attached. The two components are a laptop component that is housed within the information handling system and within the one or more peripheral devices, and a docking station component housed within the optical docking station. The components send and receive information optically (i.e., in the form of light) to each other.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: March 2, 1999
    Assignee: International Business Machines Corp.
    Inventors: William F. Green, Vincent M. Lisica, Donald L. Pearl
  • Patent number: 5631759
    Abstract: An automated, computer-controlled system automatically measures various parameters associated with the transmitter and/or receiver of an electro-optic module. Measured transmitter parameters include transmitter average power, transmitter rise/fall time, transmitter extinction ratio, transmitter duty cycle distortion, and transmitter data dependent jitter. Measured receiver parameters include receiver sensitivity, receiver pulse width distortion, receiver signal detect threshold, and receiver signal detect assert/deassert times.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: May 20, 1997
    Assignee: International Business Machines Corporation
    Inventors: David C. Bogdan, Donald L. Pearl, David T. Pribula, Nancy R. Aulet, Muhammed I. Hussain, George W. Hutt
  • Patent number: 5617238
    Abstract: An automated, computer-controlled system automatically measures various parameters associated with the transmitter and/or receiver of an electro-optic module. Measured transmitter parameters include transmitter average power, transmitter rise/fall time, transmitter extinction ratio, transmitter duty cycle distortion, and transmitter data dependent jitter. Measured receiver parameters include receiver sensitivity, receiver pulse width distortion, receiver signal detect threshold, and receiver signal detect assert/deassert times.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: April 1, 1997
    Assignee: International Business Machines Corporation
    Inventors: David C. Bogdan, Donald L. Pearl, David T. Pribula
  • Patent number: 5617237
    Abstract: An automated, computer-controlled system automatically measures various parameters associated with the transmitter and/or receiver of an electro-optic module. Measured transmitter parameters include transmitter average power, transmitter rise/fall time, transmitter extinction ratio, transmitter duty cycle distortion, and transmitter data dependent jitter. Measured receiver parameters include receiver sensitivity, receiver pulse width distortion, receiver signal detect threshold, and receiver signal detect assert/deassert times.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: April 1, 1997
    Assignee: International Business Machines Corporation
    Inventors: David C. Bogdan, Donald L. Pearl, David T. Pribula, Nancy R. Aulet, Muhammed I. Hussain, George W. Hutt
  • Patent number: 5612809
    Abstract: An automated, computer-controlled system automatically measures various parameters associated with the transmitter and/or receiver of an electro-optic module. Measured transmitter parameters include transmitter average power, transmitter rise/fall time, transmitter extinction ratio, transmitter duty cycle distortion, and transmitter data dependent jitter. Measured receiver parameters include receiver sensitivity, receiver pulse width distortion, receiver signal detect threshold, and receiver signal detect assert/deassert times.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: March 18, 1997
    Assignee: International Business Machines Corporation
    Inventors: Nancy R. Aulet, Muhammed I. Hussain, George W. Hutt, David C. Bogdan, Donald L. Pearl, David T. Pribula
  • Patent number: 5598360
    Abstract: An automated, computer-controlled system, and a corresponding method, for testing electro-optic modules, is disclosed.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: January 28, 1997
    Assignee: International Business Machines Corporation
    Inventors: David C. Bogdan, Donald L. Pearl, David T. Pribula, Nancy R. Aulet, Muhammed I. Hussain, George W. Hutt
  • Patent number: 5579145
    Abstract: An automated, computer-controlled system automatically measures various parameters associated with the transmitter and/or receiver of an electro-optic module. Measured transmitter parameters include transmitter average power, transmitter rise/fall time, transmitter extinction ratio, transmitter duty cycle distortion, and transmitter data dependent jitter. Measured receiver parameters include receiver sensitivity, receiver pulse width distortion, receiver signal detect threshold, and receiver signal detect assert/deassert times.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: November 26, 1996
    Assignee: International Business Machines Corporation
    Inventors: David C. Bogdan, Donald L. Pearl, David T. Pribula, Nancy R. Aulet, Muhammed I. Hussain, George W. Hutt
  • Patent number: 5576877
    Abstract: An automated, computer-controlled system automatically measures various parameters associated with the transmitter and/or receiver of an electro-optic module. Measured transmitter parameters include transmitter average power, transmitter rise/fall time, transmitter extinction ratio, transmitter duty cycle distortion, and transmitter data dependent jitter. Measured receiver parameters include receiver sensitivity, receiver pulse width distortion, receiver signal detect threshold, and receiver signal detect assert/deassert times.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: November 19, 1996
    Assignee: International Business Machines Corporation
    Inventors: Nancy R. Aulet, Muhammed I. Hussain, George W. Hutt, David C. Bogdan, Donald L. Pearl, David T. Pribula
  • Patent number: 5546325
    Abstract: An automated, computer-controlled system, and a corresponding method, for testing electro-optic modules, is disclosed.
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: August 13, 1996
    Assignee: International Business Machines Corporation
    Inventors: Nancy R. Aulet, David C. Bogdan, Muhammed I. Hussain, George W. Hutt, Donald L. Pearl, David T. Pribula