Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8379665 | Apparatus and methods for access fairness for a multiple target bridge/router in a fibre channel arbitrated loop system | Douglas E. Sanders, Daniel W. Meyer, Andrew Hyonil Chong, Ju Tang | 2013-02-19 |
| 8116330 | Bridge apparatus and methods for coupling multiple non-fibre channel devices to a fibre channel arbitrated loop | Douglas E. Sanders, Andrew Hyonil Chong | 2012-02-14 |
| 5664200 | Apparatus and method for providing more effective reiterations of interrupt requests in a multiprocessor system | George J. Barlow | 1997-09-02 |
| 5548713 | On-board diagnostic testing | Keith L. Petry, Thomas S. Hirsch | 1996-08-20 |
| 5491790 | Power-on sequencing apparatus for initializing and testing a system processing unit | Richard A. Lemay, Chester M. Nibby, Jr., Keith L. Petry, Thomas S. Hirsch | 1996-02-13 |
| 5487163 | Fast synchronization of asynchronous signals with a synchronous system | — | 1996-01-23 |
| 5471638 | Bus interface state machines with independent access to memory, processor and registers for concurrent processing of different types of requests | — | 1995-11-28 |
| 5446847 | Programmable system bus priority network | George J. Barlow, Richard A. Lemay | 1995-08-29 |
| 5404535 | Apparatus and method for providing more effective reiterations of processing task requests in a multiprocessor system | George J. Barlow | 1995-04-04 |
| 5379378 | Data processing system having a bus command generated by one subsystem on behalf of another subsystem | Arthur Peters, Richard C. Zelley, Elmer W. Carroll, George J. Barlow, Chester M. Nibby, Jr. | 1995-01-03 |
| 5367697 | Means for providing a graceful power shut-down capability in a multiprocessor system having certain processors not inherently having a power shut-down capability | George J. Barlow | 1994-11-22 |
| 5341495 | Bus controller having state machine for translating commands and controlling accesses from system bus to synchronous bus having different bus protocols | Thomas F. Joyce, Richard A. Lemay, Bruno DiPlacido, Martin Massucci | 1994-08-23 |
| 5341501 | Processor bus access | Richard A. Lemay, Chester M. Nibby, Jr. | 1994-08-23 |
| 5341508 | Processing unit having multiple synchronous bus for sharing access and regulating system bus access to synchronous bus | Thomas F. Joyce | 1994-08-23 |
| 5293384 | Microprocessor bus interface protocol analyzer | Richard A. Lemay | 1994-03-08 |
| 5283870 | Method and apparatus for avoiding processor deadly embrace in a multiprocessor system | Thomas F. Joyce | 1994-02-01 |
| 5274797 | Multiprocessor system with centralized initialization, testing and monitoring of the system and providing centralized timing | George J. Barlow, Elmer W. Carroll, Wallace A. Martland, Victor M. Morganti, Arthur Peters +1 more | 1993-12-28 |
| 5210757 | Method and apparatus for performing health tests of units of a data processing system | George J. Barlow, Richard C. Zelley | 1993-05-11 |
| 5193181 | Recovery method and apparatus for a pipelined processing unit of a multiprocessor system | George J. Barlow, Richard A. Lemay, Jian-Kuo Shen, Robert V. Ledoux, Thomas F. Joyce +2 more | 1993-03-09 |
| 4910666 | Apparatus for loading and verifying a control store memory of a central subsystem | Chester M. Nibby, Jr., Richard C. Zelley, Kenneth E. Bruce, George J. Barlow | 1990-03-20 |
| 4839800 | Data processing system with a fast interrupt | George J. Barlow | 1989-06-13 |
| 4833601 | Cache resiliency in processing a variety of address faults | George J. Barlow, Chester M. Nibby, Jr. | 1989-05-23 |
| 4802087 | Multiprocessor level change synchronization apparatus | George J. Barlow | 1989-01-31 |
| 4799222 | Address transform method and apparatus for transferring addresses | George J. Barlow, Chester M. Nibby, Jr. | 1989-01-17 |
| 4785395 | Multiprocessor coherent cache system including two level shared cache with separately allocated processor storage locations and inter-level duplicate entry replacement | — | 1988-11-15 |