Patents by Inventor Jeffrey J. Walker

Jeffrey J. Walker 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: 20240074529
    Abstract: A sensor system is adapted for use with an article of footwear and includes an insert member including a first layer and a second layer, a port connected to the insert and configured for communication with an electronic module, a plurality of force and/or pressure sensors on the insert member, and a plurality of leads connecting the sensors to the port.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 7, 2024
    Inventors: Michael S. Amos, Andrew A. Owings, Jordan M. Rice, Allan M. Schrock, Steven H. Walker, Jeffrey J. Hebert, Martine W. Stillman, Mark A. Tempel, Dane Weitmann, Andreas Heinrich Steier, Ndikum Protus Atang
  • Patent number: 6553519
    Abstract: Method and apparatus for detecting signal transfer errors in a digital logic system that might occur in a transfer medium between a source device and a destination device. The method includes sending a first diagnostic signal of one or more bits from the source device through the transfer medium to the destination device; comparing the first diagnostic signal received by the destination device with a second diagnostic signal within the destination device to determine if a signal transfer error has occurred; inverting the first diagnostic signal; sending the inverted first diagnostic signal from the source device through the transfer medium to the destination device; and comparing the inverted first diagnostic signal received by the destination device with the second diagnostic signal to determine if a signal transfer error has occurred. Two embodiments of the invention are disclosed.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: April 22, 2003
    Assignee: Alcatel Internetworking (PE), Inc.
    Inventors: Jeffrey J. Walker, Greg W. Davis, C Stuart Johnson
  • Patent number: 6230191
    Abstract: In a switching device such as a network switch having multiple ports and shared buffer memory, method and apparatus for regulating the amount of buffer memory requested by a port. The method includes determining a limit number of buffers that a port may use from the number of available buffers in memory and the number of buffers in memory currently in use by the port. The limit number and number of buffers currently is use are then compared, and the comparison is used to determine whether a buffer request by the port will be generated. In an illustrative embodiment, determining the limit number includes adding the number of available buffers in memory with the number of buffers in memory currently in use by the port to obtain a sum, and multiplying the sum by a port allocation factor. The port allocation factor may be set independently for each port. Apparatus within the switching device practices the method in accordance with the invention.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: May 8, 2001
    Assignee: Alcatel Internetworking (PE), Inc.
    Inventor: Jeffrey J. Walker
  • Patent number: 5619198
    Abstract: A number format conversion apparatus for signal processing has as inputs an exponent value and a mantissa value, the exponent and mantissa values representing a numerical value for a signal sample. An operator inputs an exponent max/min range and an offset, depending upon what conversion is desired. An output exponent is derived from the input exponent as a function of the maximum and minimum exponent values and the exponent offset. A shift value is derived from an unclipped output exponent and the minimum exponent value. The shift value is applied to a barrel shifter to shift the mantissa value to produce an output mantissa. The output exponent and mantissa form a floating point output number for the signal sample when a floating point output is selected, and the mantissa forms a fixed point output number for the signal sample when a fixed point output is selected.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: April 8, 1997
    Assignee: Tektronix, Inc.
    Inventors: Raymond C. Blackham, David A. Ohmann, Jeffrey J. Walker