Patents by Inventor H. John McGrath

H. John McGrath 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).

  • Enhanced cardbus adapter and associated buffering circuitry for interfacing multiple cardbus/16 bit PC cards
    Patent number: 5812827
    Abstract: An otherwise conventional CardBus adapter is provided with an additional status register, a small number of additional pins, and associated external buffering circuitry. Furthermore, a number of the CardBus adapter's existing pins are either eliminated, redefined or used for multiple purposes. As a result, the CardBus adapter in conjunction with the associated external buffering circuitry is able to interface to multiple CardBus/16-bit PC Cards at the same time.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: September 22, 1998
    Assignee: Intel Corporation
    Inventor: H. John McGrath
  • PCMCIA autoconfigure PC card
    Patent number: 5708799
    Abstract: A system for enabling a PC card to appropriately function in the 16-bit and 32-bit standard PCMCIA environments. If the 16-bit standard and the 32-bit standard requires a pin to be connected in a certain manner, then the pin is connected in that manner. If the 16-bit standard requires a card detect pin to be grounded and the 32-bit standard requires that same card detect pin to be connected to a voltage sense pin, then the card detect pin and voltage sense pin are connected, and the card detect pin is connected to ground via a pull-down resistor. After initialization, the standard of the PCMCIA adapter can be detected by sensing the voltage of an open-circuited voltage sense pin.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: January 13, 1998
    Assignee: Intel Corporation
    Inventors: Andrew H. Gafken, H. John McGrath