Inventor
HAMSTRA JAMES R
US28 patents
⚠️ This page may combine multiple inventors who share the name “HAMSTRA JAMES R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT SEMICONDUCTOR CORP
16 patentsUS5608869AMar 4, 1997
Method and apparatus for reliable descriptor chaining in a media access control/host system interface unit
NAT SEMICONDUCTOR CORP28 citations96
US5600799AFeb 4, 1997
Status batching and filtering in a media access control/host system interface unit
NAT SEMICONDUCTOR CORP48 citations95
US5513320AApr 30, 1996
Transmit data descriptor structure in a media access control/host system interface that implements flexible transmit data descriptor structure unit
NAT SEMICONDUCTOR CORP36 citations95
US5511166AApr 23, 1996
Method and apparatus for receive frame sorting in a media access control/host system interface unit
NAT SEMICONDUCTOR CORP35 citations94
US5875210AFeb 23, 1999
Method and apparatus for repeating data
NAT SEMICONDUCTOR CORP26 citations92
US5566203AOct 15, 1996
Intelligent repeater functionality
NAT SEMICONDUCTOR CORP23 citations92
US5487152AJan 23, 1996
Method and apparatus for frame header splitting in a media access control/host system interface unit
NAT SEMICONDUCTOR CORP21 citations92
US5459731AOct 17, 1995
Link error monitoring
NAT SEMICONDUCTOR CORP37 citations92
US5185863AFeb 9, 1993
Byte-wide elasticity buffer
NAT SEMICONDUCTOR CORP31 citations92
US5089957AFeb 18, 1992
Ram based events counter apparatus and method
NAT SEMICONDUCTOR CORP39 citations91
US5016221AMay 14, 1991
First-in, first-out (FIFO) memory with variable commit point
NAT SEMICONDUCTOR CORP19 citations74
US5577206ANov 19, 1996
System for physical layer controllers for performing automatic hardware based scrubbing of input and output dirty flags for updating system configuration changes
NAT SEMICONDUCTOR CORP9 citations73
US5179664AJan 12, 1993
Symbol-wide elasticity buffer with a read-only section and a read-write section
NAT SEMICONDUCTOR CORP14 citations73
US5046182ASep 3, 1991
Code points for transferring data from a network transmission medium to a station on the network
NAT SEMICONDUCTOR CORP12 citations73
US4984251AJan 8, 1991
Method and apparatus for the synchronization of a cascaded multi-channel data transmission
NAT SEMICONDUCTOR CORP20 citations70
US5784404AJul 21, 1998
Intelligent repeater functionality
NAT SEMICONDUCTOR CORP1 citations51
UNISYS CORP
4 patentsUS4873630AOct 10, 1989
Scientific processor to support a host processor referencing common memory
UNISYS CORP153 citations96
US4811203AMar 7, 1989
Hierarchial memory system with separate criteria for replacement and writeback without replacement
UNISYS CORP80 citations96
US4945479AJul 31, 1990
Tightly coupled scientific processing system
UNISYS CORP207 citations94
US4858115AAug 15, 1989
Loop control mechanism for scientific processor
UNISYS CORP50 citations92
SPERRY CORP
4 patentsUS4530054AJul 16, 1985
Processor-addressable timestamp for indicating oldest written-to cache entry not copied back to bulk memory
SPERRY CORP127 citations96
US4530055AJul 16, 1985
Hierarchical memory system with variable regulation and priority of writeback from cache memory to bulk memory
SPERRY CORP92 citations95
US4530088AJul 16, 1985
Group coding system for serial data transmission
SPERRY CORP72 citations94
US4706191ANov 10, 1987
Local store for scientific vector processor
SPERRY CORP43 citations90