Inventor · Sunnyvale, CA, US

Nils Graef

33Patents
8h-index
19Co-inventors
64Inventor score

Filing activity: Nov 17, 2004 → Feb 9, 2012

Most-cited inventions

PatentTitleAreaCited byStatus
US7702989B2 Systems and methods for generating erasure flags Physics 96 Active
US7730384B2 Method and apparatus for evaluating performance of a read channel Electricity 42 Active
US8161345B2 LDPC decoders using fixed and adjustable permutators Electricity 35 Active
US8098451B2 Systems and methods for variable fly height measurement Physics 30 Active
US7971125B2 Systems and methods for prioritizing error correction data Electricity 27 Active
US8014196B2 Reduced-power programming of multi-level cell (MLC) memory Physics 17 Active
US8578256B2 Low-latency decoder Electricity 13 Active
US8484535B2 Error-floor mitigation of codes using write verification Physics 12 Active
US8245098B2 Selectively strengthening and weakening check-node messages in error-correction decoders Electricity 8 Active
US8797795B2 Methods and apparatus for intercell interference mitigation using modulation coding Physics 4 Active
US8161348B2 Systems and methods for low cost LDPC decoding Electricity 3 Active
US8245120B2 Power reduced queue based data detection and decoding systems and methods for using such Electricity 2 Active
US7640444B2 Systems and methods for low power bus operation Emerging Cross-Sectional Technologies 2 Active
US8503128B2 Systems and methods for variable compensated fly height measurement Physics 2 Active
US7669110B2 Trace-ahead method and apparatus for determining survivor paths in a Viterbi detector Electricity 2 Active
US8077812B2 Reduced-complexity multiple-input, multiple-output detection Electricity 2 Active
US9069687B2 Memory read-channel with selective transmission of error correction data Electricity 1 Active
US7876847B2 Global minimum-based MLD demapping for soft-output MIMO detection Electricity 1 Active
US8375281B2 Method and apparatus for storing survivor paths in a viterbi detector using systematic pointer exchange Electricity 1 Active
US8046669B2 Method and apparatus for evaluating performance of a read channel Electricity 1 Active
US7707449B2 Systems and methods for low power multi-rate data paths Electricity 1 Active
US8032818B2 Method and apparatus for storing survivor paths in a Viterbi detector using input-dependent pointer exchange Electricity 1 Active
US7583762B2 Reduced-complexity multiple-input, multiple-output detection Electricity 1 Active
US9753877B2 Memory read-channel with signal processing on general purpose processor Physics 0 Active
US9356623B2 LDPC decoder variable node units having fewer adder stages Electricity 0 Active

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