Inventor · Menlo Park, CA, US

Ralph D. Wittig

56Patents
21h-index
68Co-inventors
91Inventor score

Filing activity: Dec 12, 1997 → Aug 31, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US6091263A Rapidly reconfigurable FPGA having a multiple region architecture with reconfiguration caches useable as data RAM Electricity 318 Expired
US6150838A FPGA configurable logic block with multi-purpose logic/memory circuit Electricity 271 Expired
US6150839A Rapidly reconfigurable FPGA having a multiple region architecture with reconfiguration caches useable as data RAM Electricity 167 Expired
US6396302B2 Configurable logic element with expander structures Electricity 89 Expired
US6388466B1 FPGA logic element with variable-length shift register capability Electricity 74 Expired
US6118300A Method for implementing large multiplexers with FPGA lookup tables Electricity 73 Expired
US6457164B1 Hetergeneous method for determining module placement in FPGAs Physics 67 Expired
US6292925A Context-sensitive self implementing modules Physics 66 Expired
US6216258A FPGA modules parameterized by expressions Physics 66 Expired
US6208163A FPGA configurable logic block with multi-purpose logic/memory circuit Electricity 65 Expired
US6400180B2 Configurable lookup table for programmable logic devices Electricity 58 Expired
US6184712A FPGA configurable logic block with multi-purpose logic/memory circuit Electricity 51 Expired
US6260182A Method for specifying routing in a logic module by direct module communication Physics 50 Expired
US6243851A Heterogeneous method for determining module placement in FPGAs Physics 49 Expired
US9218443B1 Heterogeneous multiprocessor program compilation targeting programmable integrated circuits Physics 42 Active
US6501296B2 Logic/memory circuit having a plurality of operating modes Electricity 38 Expired
US6191610A Method for implementing large multiplexers with FPGA lookup tables Electricity 33 Expired
US6583645B1 Field programmable optical arrays Physics 31 Expired
US8443230B1 Methods and systems with transaction-level lockstep Physics 31 Active
US6237129A Method for constraining circuit element positions in structured layouts Physics 21 Expired
US7721090B1 Event-driven simulation of IP using third party event-driven simulators Physics 21 Active
US6505337B1 Method for implementing large multiplexers with FPGA lookup tables Electricity 20 Expired
US10747690B2 Device with data processing engine array Electricity 19 Active
US6353920B1 Method for implementing wide gates and tristate buffers using FPGA carry logic Physics 16 Expired
US8447957B1 Coprocessor interface architecture and methods of operating the same Physics 15 Active

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