Inventor
SIMKINS JAMES M
US38 patents
⚠️ This page may combine multiple inventors who share the name “SIMKINS JAMES M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
XILINX INC
31 patentsUS7567997B2Jul 28, 2009
Applications of cascading DSP slices
XILINX INC71 citations98
US7480690B2Jan 20, 2009
Arithmetic circuit with multiplexed addend inputs
XILINX INC61 citations98
US7472155B2Dec 30, 2008
Programmable logic device with cascading DSP slices
XILINX INC111 citations98
US9081634B1Jul 14, 2015
Digital signal processing block
XILINX INC61 citations97
US7184466B1Feb 27, 2007
Radio frequency data conveyance system including configurable integrated circuits
XILINX INC63 citations96
US6690201B1Feb 10, 2004
Method and apparatus for locating data transition regions
XILINX INC87 citations95
US7467175B2Dec 16, 2008
Programmable logic device with pipelined DSP slices
XILINX INC45 citations93
US7467177B2Dec 16, 2008
Mathematical circuit with dynamic rounding
XILINX INC43 citations93
US7882165B2Feb 1, 2011
Digital signal processing element having an arithmetic logic unit
XILINX INC25 citations92
US7870182B2Jan 11, 2011
Digital signal processing circuit having an adder circuit with carry-outs
XILINX INC21 citations92
US7797610B1Sep 14, 2010
Method and apparatus for virtual quad-port random access memory
XILINX INC26 citations92
US7757294B1Jul 13, 2010
Method and system for maintaining the security of design information
XILINX INC26 citations92
US7274211B1Sep 25, 2007
Structures and methods for implementing ternary adders/subtractors in programmable logic devices
XILINX INC38 citations92
US7233168B1Jun 19, 2007
Methods of setting and resetting lookup table memory cells
XILINX INC20 citations92
US7100101B1Aug 29, 2006
Method and apparatus for concatenated and interleaved turbo product code encoding and decoding
XILINX INC30 citations91
US6983394B1Jan 3, 2006
Method and apparatus for clock signal performance measurement
XILINX INC52 citations91
US7865542B2Jan 4, 2011
Digital signal processing block having a wide multiplexer
XILINX INC16 citations84
US7860915B2Dec 28, 2010
Digital signal processing circuit having a pattern circuit for determining termination conditions
XILINX INC11 citations84
US7853636B2Dec 14, 2010
Digital signal processing circuit having a pattern detector circuit for convergent rounding
XILINX INC10 citations84
US7853634B2Dec 14, 2010
Digital signal processing circuit having a SIMD circuit
XILINX INC10 citations84
US7853632B2Dec 14, 2010
Architectural floorplan for a digital signal processing circuit
XILINX INC12 citations84
US7849119B2Dec 7, 2010
Digital signal processing circuit having a pattern detector circuit
XILINX INC12 citations84
US7844653B2Nov 30, 2010
Digital signal processing circuit having a pre-adder circuit
XILINX INC11 citations84
US7840627B2Nov 23, 2010
Digital signal processing circuit having input register blocks
XILINX INC8 citations84
US7840630B2Nov 23, 2010
Arithmetic logic unit circuit
XILINX INC17 citations84
US8912829B1Dec 16, 2014
Method and apparatus for using a synchronous reset pulse to reset circuitry in multiple clock domains
XILINX INC12 citations83
US7161995B1Jan 9, 2007
Method and apparatus for Viterbi synchronization
XILINX INC10 citations83
US8001171B1Aug 16, 2011
Pipeline FFT architecture for a programmable device
XILINX INC16 citations82
US7535789B1May 19, 2009
Circuits and methods of concatenating FIFOs
XILINX INC4 citations63
US8866509B1Oct 21, 2014
Flip-flop array with option to ignore control signals
XILINX INC2 citations57
US9075930B2Jul 7, 2015
Configurable embedded memory system
XILINX INC1 citations51
SIMKINS JAMES M
3 patentsUS8495122B2Jul 23, 2013
Programmable device with dynamic DSP architecture
SIMKINS JAMES M12 citations83
US8220060B1Jul 10, 2012
Method and system for maintaining the security of design information
SIMKINS JAMES M7 citations83
US8543635B2Sep 24, 2013
Digital signal processing block with preadder stage
SIMKINS JAMES M4 citations58