Inventor · Carlton, GB

Richard Simpson

103Patents
25h-index
67Co-inventors
93Inventor score

Filing activity: Feb 22, 1982 → Jun 6, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US9362974B2 Methods and systems for high bandwidth chip-to-chip communications interface Emerging Cross-Sectional Technologies 131 Active
US5805792A Emulation devices, systems, and methods Physics 108 Expired
US6185629A Data transfer controller employing differing memory interface protocols dependent upon external input at predetermined time Physics 102 Expired
US9363114B2 Clock-embedded vector signaling codes Electricity 99 Active
US9059816B1 Control loop management and differential delay correction for vector signaling code communications links Electricity 95 Active
US5487022A Normalization method for floating point numbers Physics 94 Expired
US5446651A Split multiply operation Physics 94 Expired
US5596763A Three input arithmetic logic unit forming mixed arithmetic and boolean combinations Physics 90 Expired
US5233690A Video graphics display memory swizzle logic and expansion circuit and method Physics 88 Expired
US5761103A Left and right justification of single precision mantissa in a double precision rounding unit Physics 86 Expired
US9124557B2 Methods and systems for chip-to-chip communication with reduced simultaneous switching noise Emerging Cross-Sectional Technologies 77 Active
US5644522A Method, apparatus and system for multiply rounding using redundant coded multiply result Physics 76 Expired
US5606347A Devices systems and methods for flexible format data storage Physics 56 Expired
US4713748A Microprocessor with block move instruction Physics 56 Expired
US9577815B1 Clock data alignment system for vector signaling code communications link Electricity 55 Active
US9071476B2 Methods and systems for high bandwidth chip-to-chip communications interface Electricity 54 Active
US5630160A Floating point exponent compare using repeated two bit compare cell Physics 44 Expired
US5140687A Data processing apparatus with self-emulation capability Physics 35 Expired
US5696924A Memory access circuit with address translation performing auto increment of translated address on writes and return to translated address on reads Physics 33 Expired
US5287470A Apparatus and method for coupling a multi-lead output bus to interleaved memories, which are addressable in normal and block-write modes Physics 31 Expired
US5465224A Three input arithmetic logic unit forming the sum of a first Boolean combination of first, second and third inputs plus a second Boolean combination of first, second and third inputs Physics 30 Expired
US5493524A Three input arithmetic logic unit employing carry propagate logic Physics 26 Expired
US6374325B1 Content addressable memory (CAM) Physics 26 Expired
US5249266A Data processing apparatus with self-emulation capability Physics 26 Expired
US5056041A Data processing apparatus with improved bit masking capability Physics 25 Expired

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