Inventor · Franklin, MA, US

Mark Hummel

91Patents
19h-index
111Co-inventors
87Inventor score

Filing activity: Nov 15, 1982 → Aug 24, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US6448815B1 Low voltage differential receiver/transmitter and calibration method thereof Electricity 111 Expired
US6950438B1 System and method for implementing a separate virtual channel for posted requests in a multiprocessor computer system Electricity 82 Expired
US6721813B2 Computer system implementing a system and method for tracking the progress of posted write transactions Physics 61 Expired
US5016162A Contention revolution in a digital computer system Physics 53 Expired
US7421525B2 System including a host connected to a plurality of memory modules via a serial memory interconnect Physics 45 Expired
US8244978B2 IOMMU architected TLB support Physics 43 Active
US6665742B2 SYSTEM FOR RECONFIGURING A FIRST DEVICE AND/OR A SECOND DEVICE TO USE A MAXIMUM COMPATIBLE COMMUNICATION PARAMETERS BASED ON TRANSMITTING A COMMUNICATION TO THE FIRST AND SECOND DEVICES OF A POINT-TO-POINT LINK Electricity 34 Expired
US7613898B2 Virtualizing an IOMMU Physics 34 Active
US6751684B2 System and method of allocating bandwidth to a plurality of devices interconnected by a plurality of point-to-point communication links Electricity 32 Expired
US6760838B2 System and method of initializing and determining a bootstrap processor [BSP] in a fabric of a distributed multiprocessor computing system Physics 31 Expired
US6745272B2 System and method of increasing bandwidth for issuing ordered transactions into a distributed communication system Electricity 30 Expired
US7917726B2 Using an IOMMU to create memory archetypes Physics 27 Active
US7548999B2 Chained hybrid input/output memory management unit Physics 27 Active
US8489789B2 Interrupt virtualization Physics 25 Active
US8180944B2 Guest interrupt manager that records interrupts for guests and delivers interrupts to executing guests Physics 24 Active
US4569018A Digital data processing system having dual-purpose scratchpad and address translation memory Physics 21 Expired
US7809923B2 Direct memory access (DMA) address translation in an input/output memory management unit (IOMMU) Physics 20 Active
US7640315B1 Implementing locks in a distributed processing system Physics 20 Expired
US8386745B2 I/O memory management unit including multilevel address translation for I/O and computation offload Physics 20 Active
US7069361B2 System and method of maintaining coherency in a distributed communication system Electricity 19 Expired
US7287105B1 Asynchronous-mode sync FIFO having automatic lookahead and deterministic tester operation Electricity 18 Expired
US8806025B2 Systems and methods for input/output virtualization Emerging Cross-Sectional Technologies 18 Active
US7873770B2 Filtering and remapping interrupts Physics 15 Active
US6738917B2 Low latency synchronization of asynchronous data Physics 14 Expired
US9424199B2 Virtual input/output memory management unit within a guest virtual machine Physics 13 Active

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