Patents by Inventor Karl Thomas Leinfelder

Karl Thomas Leinfelder 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).

  • Patching apparatus and method for upgrading modem software code
    Patent number: 6135651
    Abstract: A software patch method and apparatus using a content addressable memory (CAM) to produce a code change enable signal when a program memory address matches a patch memory address, to cause program execution of modem operation to be diverted to the patch code when an address comparison hit is achieved. The patching apparatus includes a program memory for applying program instructions onto a data bus for execution, unless an address comparison of a program address and a patch address causes application of a substitute address onto the data bus.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: October 24, 2000
    Assignee: Cirrus Logic, Inc.
    Inventors: Karl Thomas Leinfelder, Wesley Hamilton Smith, Sanjay Gupta, Navin Jaffer, Shahin Hedayat, Babu Mandava