Patents by Inventor Dennis J. Cashen

Dennis J. Cashen 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).

  • Dual access serial peripheral interface
    Patent number: 6931470
    Abstract: A dual access peripheral interface uses a shared data bus (16) for communication with dual master units (30,32) coupled to a common peripheral device (34). Each master control unit provides a shared subset of control bits to a logic configuration block (48), which combines the control bits in a logic operation to present to the slave peripheral unit (34). The logic configuration block (48) is configured by configuration bits accessible by only one of the master units (30). In this way, both of the master units can access the peripheral at the same time with the logic of the logic configuration block determining the ultimate control of the peripheral.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: August 16, 2005
    Assignee: Motorola, Inc.
    Inventors: Wayne W. Ballantyne, Robert J. Bero, Dennis J. Cashen, Richard T. Unetich
  • Dual access serial peripheral interface
    Publication number: 20030154336
    Abstract: A dual access peripheral interface uses a shared data bus (16) for communication with dual master units (30,32) coupled to a common peripheral device (34). Each master control unit provides a shared subset of control bits to a logic configuration block (48), which combines the control bits in a logic operation to present to the slave peripheral unit (34). The logic configuration block (48) is configured by configuration bits accessible by only one of the master units (30). In this way, both of the master units can access the peripheral at the same time with the logic of the logic configuration block determining the ultimate control of the peripheral.
    Type: Application
    Filed: February 11, 2002
    Publication date: August 14, 2003
    Inventors: Wayne W. Ballantyne, Robert J. Bero, Dennis J. Cashen, Richard T. Unetich