Inventor · Minnetonka, MN, US

David E. Tetzlaff

36Patents
12h-index
42Co-inventors
81Inventor score

Filing activity: Dec 23, 1992 → Apr 12, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US7499513B1 Method and apparatus for providing frequency synthesis and phase alignment in an integrated circuit Electricity 75 Active
US5928345A Field instrument with data bus communications protocol Emerging Cross-Sectional Technologies 51 Expired
US5936514A Power supply input circuit for field instrument Physics 49 Expired
US7599431B1 Combined decision feedback equalization and linear equalization Electricity 49 Active
US5621406A System for calibrating analog-to-digital converter Electricity 20 Expired
US6351489B1 Data bus communication technique for field instrument Physics 19 Expired
US5909188A Process control transmitter with adaptive analog-to-digital converter Electricity 15 Expired
US7742553B1 VCO initial frequency calibration circuit and method therefore Electricity 14 Active
US7598768B1 Method and apparatus for dynamic port provisioning within a programmable logic device Electricity 13 Active
US7970090B1 Method and apparatus for a self-synchronizing system Electricity 13 Active
US7426235B1 Method of adaptive equalization for high-speed NRZ and multi-level signal data communications Electricity 13 Active
US7346794B1 Method and apparatus for providing clocking phase alignment in a transceiver system Physics 12 Expired
US7336755B1 PLL with low phase noise non-integer divider Electricity 10 Expired
US7620121B1 DC balance compensation for AC-coupled circuits Electricity 8 Active
US5689692A Method and apparatus for decoding an encoded NRZ signal Electricity 8 Expired
US7532645B1 Receiver operable to receive data at a lower data rate Electricity 7 Active
US8582226B2 Write delay stabilization Physics 6 Active
US7902863B1 Methods and apparatus for device-specific configuration of a programmable integrated circuit Physics 6 Active
US10084623B1 Multichannel CDR with sharing of adaptation hints and learning Electricity 6 Active
US9976814B2 Switchably activated heat transfer with magnetic fluid Emerging Cross-Sectional Technologies 5 Active
US9542122B2 Logical block addresses used for executing host commands Physics 5 Active
US8947992B2 Combined echo and crosstalk cancellation Electricity 4 Active
US7408380B1 Method and apparatus for a redundant transceiver architecture Electricity 4 Active
US5374927A Bit-serial decoder for a specially encoded bit stream Electricity 4 Expired
US9632729B2 Storage compute device with tiered memory processing Physics 3 Active

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