Patents by Inventor Glenn F. Widener

Glenn F. Widener 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: 8015112
    Abstract: A document distribution system transfers a document from a source computer to a destination computer in the form of a print file. The print file defines the appearance of the document in a code suitable for telling a printer how to print the document. The source computer executes “license stamper” software for embedding an encoded license stamp into the print file before it is sent to the destination computer. Viewer software executed by the source computer receives and parses the print file to determine whether it contains the license stamp. If so, the viewer may generate a video display of the document defined by the print file or may print the document by sending the print file to a printer. However if the viewer receives a print file not containing the embedded license stamp, the viewer refrains from displaying or printing the document.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: September 6, 2011
    Inventors: Randy L. Prakken, John Corrigan, Glenn F. Widener
  • Patent number: 7243127
    Abstract: A document delivery system transmits a document file from a sender computer to a server computer. The server computer then stores the document file at a particular network address, sends a message to the receiver computer indicating the network address of the document file, and later forwards the document file to the receiver computer when the receiver computer requests the document file at that network address. Viewer software running on the receiver computer processes the received document file to produce a display of the document it describes after which the viewer software returns data to the server computer indicating that it successfully displayed the document. The server computer logs a record of the successful receipt and display of the document and makes that record accessible to the sender computer. If the viewer is unable to successfully display the document, it does not return the indicating data to the server.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: July 10, 2007
    Assignee: Swiftview, Inc.
    Inventors: Alfred T. Tabayoyon, Jr., Randy L. Prakken, Glenn F. Widener
  • Publication number: 20020042838
    Abstract: A document delivery system transmits a document file from a sender computer to a server computer. The server computer then stores the document file at a particular network address, sends a message to the receiver computer indicating the network address of the document file, and later forwards the document file to the receiver computer when the receiver computer requests the document file at that network address. Viewer software running on the receiver computer processes the received document file to produce a display of the document it describes after which the viewer software returns data to the server computer indicating that it successfully displayed the document. The server computer logs a record of the successful receipt and display of the document and makes that record accessible to the sender computer. If the viewer is unable to successfully display the document, it does not return the indicating data to the server.
    Type: Application
    Filed: October 9, 2001
    Publication date: April 11, 2002
    Inventors: Alfred T. Tabayoyon, Randy L. Prakken, Glenn F. Widener
  • Publication number: 20010049666
    Abstract: A document distribution system transfers a document from a source computer to a destination computer in the form of a print file. The print file defines the appearance of the document in a code suitable for telling a printer how to print the document. The source computer executes “license stamper” software for embedding an encoded license stamp into the print file before it is sent to the destination computer. Viewer software executed by the source computer receives and parses the print file to determine whether it contains the license stamp. If so, the viewer may generate a video display of the document defined by the print file or may print the document by sending the print file to a printer. However if the viewer receives a print file not containing the embedded license stamp, the viewer refrains from displaying or printing the document.
    Type: Application
    Filed: January 4, 2001
    Publication date: December 6, 2001
    Inventors: Randy L. Prakken, John Corrigan, Glenn F. Widener
  • Patent number: 5004933
    Abstract: A phase-selectable flip-flop has an input dual-enable transparent latch and an output D-type flip-flop. A clock is input to one enable of the transparent latch and to the flip-flop, and a command is input to the second enable of the transparent latch. When the command is in a first state the latch is held transparent and data is clocked into the flip-flop on the rising edge of the clock, and when the command is in a second state data is held by the transparent latch on the falling edge of the clock and clocked into the flip-flop on the succeeding rising edge.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: April 2, 1991
    Assignee: Tektronix, Inc.
    Inventor: Glenn F. Widener
  • Patent number: 4777388
    Abstract: A fast latching flip-flop has a transparent latch master section with an input amplifier, an output latch, a current source connected to provide current for the input amplifier and the output latch, and a switch for applying the current from the current source to either the input amplifier or the output latch. A slave section is connected to the output latch to transfer the data from the output latch to the output of the fast latching flip-flop. A delay transistor is inserted between the switch and the input amplifier to add delay in the turn-off of the input amplifier. Additional delay is attained by connecting a plurality of diode-connected transistors to the junction of the delay transistor and the switch. The result is a reduction of the metastable region between the turn-off of the input amplifier and the turn-on of the output latch.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: October 11, 1988
    Assignee: Tektronix, Inc.
    Inventor: Glenn F. Widener