Inventor · Hopewell Junction, NY, US

Mark A. Check

46Patents
13h-index
50Co-inventors
84Inventor score

Filing activity: Mar 31, 1995 → Dec 4, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US8656228B2 Memory error isolation and recovery in a multiprocessor computer system Physics 63 Active
US5790844A Millicode load and test access instruction that blocks interrupts in response to access exceptions Physics 20 Expired
US6092185A Opcode compare logic in E-unit for breaking infinite loops, detecting invalid opcodes and other exception checking Physics 18 Expired
US7136954B2 Data communication method and apparatus utilizing credit-based data transfer protocol and credit loss detection mechanism Physics 18 Expired
US5748951A Specialized millicode instructions which reduce cycle time and number of instructions necessary to perform complex operations Physics 17 Expired
US7647435B2 Data communication method and apparatus utilizing credit-based data transfer protocol and credit loss detection mechanism Physics 17 Active
US7617410B2 Simultaneously updating logical time of day (TOD) clocks for multiple cpus in response to detecting a carry at a pre-determined bit position of a physical clock Physics 16 Active
US6865645B1 Program store compare handling between instruction and operand caches Physics 16 Expired
US7167968B2 Storage pre-alignment and EBCDIC, ASCII and unicode basic latin conversions for packed decimal data Physics 14 Expired
US5694587A Specialized millicode instructions for test PSW validity, load with access test, and character translation assist Physics 14 Expired
US5903479A Method and system for executing denormalized numbers Physics 14 Expired
US6035392A Computer with optimizing hardware for conditional hedge fetching into cache storage Physics 13 Expired
US6125444A Millimode capable computer system providing global branch history table disables and separate millicode disables which enable millicode disable to be turned off for some sections of code execution but not disabled for all Physics 13 Expired
US6108776A Globally or selectively disabling branch history table operations during sensitive portion of millicode routine in millimode supporting computer Physics 12 Expired
US6178495A Processor E-unit to I-unit interface instruction modification with E-unit opcode computer logic in the unit Physics 10 Expired
US7249207B2 Internal data bus interconnection mechanism utilizing central interconnection module converting data in different alignment domains Physics 9 Expired
US6085313A Computer processor system for executing RXE format floating point instructions Physics 8 Expired
US6138223A Absolute address history table index generation for predicting instruction and operand cache accesses Physics 8 Expired
US7089408B2 Re-fetch of long operand buffered remainder after cache line invalidation in out-of-order multiprocessor system without instruction re-execution Physics 7 Expired
US5625808A Read only store as part of cache store for storing frequently used millicode instructions Physics 6 Expired
US7739545B2 System and method to support use of bus spare wires in connection modules Physics 6 Active
US7882278B2 Utilizing programmable channels for allocation of buffer space and transaction control in data communications Physics 6 Active
US7493426B2 Data communication method and apparatus utilizing programmable channels for allocation of buffer space and transaction control Physics 5 Expired
US6105126A Address bit decoding for same adder circuitry for RXE instruction format with same XBD location as RX format and dis-jointed extended operation code Physics 5 Expired
US6138215A Method for absolute address history table synonym resolution Physics 5 Expired

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