Inventor · Houston, TX, US

Robert A. Lester

53Patents
24h-index
61Co-inventors
91Inventor score

Filing activity: Mar 3, 1995 → Feb 13, 2015

Most-cited inventions

PatentTitleAreaCited byStatus
US6286083A Computer system with adaptive memory arbitration scheme Physics 176 Expired
US6715116B2 Memory data verify operation Physics 142 Expired
US7010652B2 Method for supporting multi-level striping of non-homogeneous memory to maximize concurrency Physics 116 Expired
US6785785B2 Method for supporting multi-level stripping of non-homogeneous memory to maximize concurrency Physics 114 Expired
US6363439B1 System and method for point-to-point serial communication between a system interface device and a bus interface device in a computer system Physics 106 Expired
US6766469B2 Hot-replace of memory Physics 103 Expired
US5905509A Accelerated Graphics Port two level Gart cache having distributed first level caches Physics 97 Expired
US6832340B2 Real-time hardware memory scrubbing Physics 64 Expired
US6160562A System and method for aligning an initial cache line of data read from local memory by an input/output device Physics 63 Expired
US6078338A Accelerated graphics port programmable memory access arbiter Physics 59 Expired
US5596729A First arbiter coupled to a first bus receiving requests from devices coupled to a second bus and controlled by a second arbiter on said second bus Physics 58 Expired
US6854070B2 Hot-upgrade/hot-add memory Physics 56 Expired
US5999198A Graphics address remapping table entry feature flags for customizing the operation of memory pages associated with an accelerated graphics port device Physics 54 Expired
US5936640A Accelerated graphics port memory mapped status and control registers Physics 53 Expired
US6202101A System and method for concurrently requesting input/output and memory address space while maintaining order of data sent and returned therefrom Physics 43 Expired
US5949436A Accelerated graphics port multiple entry gart cache allocation system and method Physics 42 Expired
US6247102A Computer system employing memory controller and bridge interface permitting concurrent operation Physics 40 Expired
US6823424B2 Rebuild bus utilization Physics 38 Expired
US5923859A Dual arbiters for arbitrating access to a first and second bus in a computer system having bus masters on each bus Physics 34 Expired
US7320086B2 Error indication in a raid memory system Physics 31 Expired
US6470429B1 System for identifying memory requests as noncacheable or reduce cache coherence directory lookups and bus snoops Physics 31 Expired
US5914727A Valid flag for disabling allocation of accelerated graphics port memory space Electricity 29 Expired
US5990914A Generating an error signal when accessing an invalid memory page Physics 27 Expired
US6785835B2 Raid memory Physics 26 Expired
US5999743A System and method for dynamically allocating accelerated graphics port memory space Physics 23 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.