Patents by Inventor Steven R. Wahl

Steven R. Wahl 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).

  • Flow control
    Patent number: 6643717
    Abstract: A method for controlling a transmitter for a serial data port is provided. The method includes receiving a set of data at the serial data port. The data in the set of data is compared with a selected pattern of bits. When data in the set of data matches the selected pattern of bits, a bit in a register is set. When the bit in the register is set, transmissions stop. The method further includes processing the set of data to determine a flow control state. When processing the set of data determines that the flow control state is a first state, transmissions re-start.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: November 4, 2003
    Assignee: Digi International Inc.
    Inventors: Mark D. Rustad, Scott A. Davidson, Jeffrey T. Rabe, Robert J. Lipe, Steven R. Wahl
  • Circuit and method for detecting an escape sequence
    Patent number: 6373885
    Abstract: A method for selecting the operational mode of a modem is provided. The method determines the number of characters in a data packet directed to a modem when the modem is not in time independent escape sequence (TIES) mode of operation. The method bypasses the TIES mode of operation when a data packet contains more than X characters.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: April 16, 2002
    Assignee: Digi International, Inc.
    Inventor: Steven R. Wahl