Patents by Inventor Jeffrey Clay Dunnihoo

Jeffrey Clay Dunnihoo 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).

  • Dynamically allocating space in RAM shared between multiple USB endpoints and USB host
    Patent number: 6185641
    Abstract: The present invention relates to a peripheral microcontroller for providing a high performance USB (Universal Serial Bus) connection to existing peripheral architectures (such as printers and disk drives with existing microcontrollers) and to new peripheral architectures (such as a 4-port USB-to-Ethernet Bridge). The USB peripheral microcontroller includes three units. A Serial Interface Engine (SIE) connects to a USB host or USB hub. A Microcontroller (MCU) Interface Unit connects to one or more peripheral devices such as ISA-like peripherals. A Memory Management Unit (MMU) provides a buffering mechanism between the SIE and MCU Interface Unit. The MMU utilizes a unique data packet buffering architecture. Packets received at the MMU from a peripheral for transmission to the USB host and packets received at the MMU from the USB host for transmission to a peripheral are buffered in a RAM.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: February 6, 2001
    Assignee: Standard Microsystems Corp.
    Inventor: Jeffrey Clay Dunnihoo