Patents by Inventor Joe H. Steinmetz

Joe H. Steinmetz 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).

  • Co-processor monitoring address generated by host processor to obtain DMA parameters in the unused portion of instructions
    Patent number: 5485624
    Abstract: A co-processor works in conjunction with a primary processor which does not natively support co-processing. In a memory which provides instructions for the primary processor, parameters for use by the co-processor are embedded within the instructions. This is done by placing the parameters in fields which are unused by the primary processor. When the primary processor accesses the local memory, the addresses generated by the primary processor are monitored by the co-processor. When the co-processor detects a pre-determined combination within an address generated by the primary processor, the co-processor accesses the data sent from the local memory to the primary processor. The co-processor then extracts the parameters embedded within the unused fields of the accessed data.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: January 16, 1996
    Assignee: Hewlett-Packard Company
    Inventors: Joe H. Steinmetz, Eric G. Tausheck