Patents by Inventor James C. Dann

James C. Dann 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).

  • Multiprocessor system with reflective memory data transfer device
    Patent number: 5581732
    Abstract: A real time data processing system in which each of a series of processing nodes is provided with its own data store partitioned into a first section reserved for the storage of data local to the respective node and a second section reserved for the storage of data to be shared between nodes. The nodes are interconnected by a data link and whenever a node writes to an address in the second section of a data store the written data is communicated to all of the nodes via the data link. The data in each address of the second sections of the data stores can be changed only by one respective processing node which acts as a master for that address. As each address containing shared data can only be written to by one node collisions between different nodes attempting to change a common item of data cannot occur.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: December 3, 1996
    Assignee: Encore Computer, U.S., Inc.
    Inventor: James C. Dann
  • Multiprocessor system with reflective memory data transfer device
    Patent number: 5255369
    Abstract: A real time data processing system in which each of a series of processing nodes is provided with its own data store partitioned into a first section reserved for the storage of data local to the respective node and a second section reserved for the storage of data to be shared between nodes. The nodes are interconnected by a data link and whenever a node writes to an address in the second section of a data store the written data is communicated to all of the nodes via the data link. The data in each address of the second sections of the data stores can be changed only by one respective processing node which acts as a master for that address. As each address containing shared data can only be written to by one node collisions between different nodes attempting to change a common item of data cannot occur.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: October 19, 1993
    Assignee: Encore Computer U.S., Inc.
    Inventor: James C. Dann
  • Real-time data processing system
    Patent number: 5072373
    Abstract: A real time data processing system in which each of a series of processing nodes is provided with its own data store partitioned into a first section reserved for the storage of data local to the respective node and a second section reserved for the storage of data to be shared between nodes. The nodes are interconnected by a data link and whenever a node writes to an address in the second section of a data store the written data is communicated to all of the nodes via the data link. The data in each address of the second sections of the data stores can be changed only by one respective processing node which acts as a master for that address. As each address containing shared data can only be written to by one node collisions between different nodes attempting to change a common item of data cannot occur.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: December 10, 1991
    Assignee: Encore Computer U.S., Inc.
    Inventor: James C. Dann
  • Real-time data processing system
    Patent number: 4991079
    Abstract: A real time data processing system in which each of a series of processing nodes is provided with its own data store partitioned into a first section reserved for the storage of data local to the respective node and a second section reserved for the storage of data to be shared between nodes. The nodes are interconnected by a data link and whenever a node writes to an address in the second section of a data store the written data is communicated to all of the nodes via the data link. The data in each address of the second sections of the data stores can be changed only by one respective processing node which acts as a master for that address. As each address containing shared data can only be written to by one node collisions between different nodes attempting to change a common item of data cannot occur.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: February 5, 1991
    Assignee: Encore Computer Corporation
    Inventor: James C. Dann