Inventor
MORRISSEY DOUGLAS E
US11 patents
Patents
11 patentsUS6092156AJul 18, 2000
System and method for avoiding deadlocks utilizing split lock operations to provide exclusive access to memory during non-atomic operations
UNISYS CORP56 citations95
US6052760AApr 18, 2000
Computer system including plural caches and utilizing access history or patterns to determine data ownership for efficient handling of software locks
UNISYS CORP76 citations95
US6314501B1Nov 6, 2001
Computer system and method for operating multiple operating systems in different partitions of the computer system and for allowing the different partitions to communicate with one another through shared memory
UNISYS CORP454 citations94
US6014709AJan 11, 2000
Message flow protocol for avoiding deadlocks
UNISYS CORP71 citations94
US5463762AOct 31, 1995
I/O subsystem with header and error detection code generation and checking
UNISYS CORP67 citations93
US6587931B1Jul 1, 2003
Directory-based cache coherency system supporting multiple instruction processor and input/output caches
UNISYS CORP35 citations92
US6438659B1Aug 20, 2002
Directory based cache coherency system supporting multiple instruction processor and input/output caches
UNISYS CORP38 citations92
US5832310ANov 3, 1998
Serial I/O channel having dependent and synchronous sources of control data and user defined data
UNISYS CORP63 citations92
US6049845AApr 11, 2000
System and method for providing speculative arbitration for transferring data
UNISYS CORP39 citations91
US5553302ASep 3, 1996
Serial I/O channel having independent and asynchronous facilities with sequence recognition, frame recognition, and frame receiving mechanism for receiving control and user defined data
UNISYS CORP46 citations89
US6389515B1May 14, 2002
System and method for avoiding deadlocks utilizing split lock operations to provide exclusive access to memory during non-atomic operations
UNISYS CORP8 citations73