Inventor
BUTTS MICHAEL R
US36 patents
⚠️ This page may combine multiple inventors who share the name “BUTTS MICHAEL R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
QUICKTURN DESIGN SYSTEMS INC
19 patentsUS6002861ADec 14, 1999
Method for performing simulation using a hardware emulation system
QUICKTURN DESIGN SYSTEMS INC109 citations99
US5661662AAug 26, 1997
Structures and methods for adding stimulus and response functions to a circuit design undergoing emulation
QUICKTURN DESIGN SYSTEMS INC102 citations99
US5612891AMar 18, 1997
Hardware logic emulation system with memory capability
QUICKTURN DESIGN SYSTEMS INC120 citations99
US5452231ASep 19, 1995
Hierarchically connected reconfigurable logic assembly
QUICKTURN DESIGN SYSTEMS INC224 citations99
US5448496ASep 5, 1995
Partial crossbar interconnect architecture for reconfigurably connecting multiple reprogrammable logic devices in a logic emulation system
QUICKTURN DESIGN SYSTEMS INC207 citations99
US6732068B2May 4, 2004
Memory circuit for use in hardware emulation system
QUICKTURN DESIGN SYSTEMS INC273 citations98
US6377912B1Apr 23, 2002
Emulation system with time-multiplexed interconnect
QUICKTURN DESIGN SYSTEMS INC153 citations98
US5960191ASep 28, 1999
Emulation system with time-multiplexed interconnect
QUICKTURN DESIGN SYSTEMS INC169 citations98
US5812414ASep 22, 1998
Method for performing simulation using a hardware logic emulation system
QUICKTURN DESIGN SYSTEMS INC77 citations97
US6539535B2Mar 25, 2003
Programmable logic device having integrated probing structures
QUICKTURN DESIGN SYSTEMS INC80 citations96
US6289494B1Sep 11, 2001
Optimized emulation and prototyping architecture
QUICKTURN DESIGN SYSTEMS INC78 citations96
US5796623AAug 18, 1998
Apparatus and method for performing computations with electrically reconfigurable logic devices
QUICKTURN DESIGN SYSTEMS INC60 citations96
US5734581AMar 31, 1998
Method for implementing tri-state nets in a logic emulation system
QUICKTURN DESIGN SYSTEMS INC37 citations96
US5657241AAug 12, 1997
Routing methods for use in a logic emulation system
QUICKTURN DESIGN SYSTEMS INC52 citations96
US7260794B2Aug 21, 2007
Logic multiprocessor for FPGA implementation
QUICKTURN DESIGN SYSTEMS INC27 citations93
US6625793B2Sep 23, 2003
Optimized emulation and prototyping architecture
QUICKTURN DESIGN SYSTEMS INC23 citations93
US7739097B2Jun 15, 2010
Emulation system with time-multiplexed interconnect
QUICKTURN DESIGN SYSTEMS INC26 citations92
US6882176B1Apr 19, 2005
High-performance programmable logic architecture
QUICKTURN DESIGN SYSTEMS INC14 citations84
US6151258ANov 21, 2000
Programmable logic device with multi-port memory
QUICKTURN DESIGN SYSTEMS INC13 citations82
ALTERA CORP
13 patentsUS6285211B1Sep 4, 2001
I/O buffer circuit with pin multiplexing
ALTERA CORP131 citations99
US6184707B1Feb 6, 2001
Look-up table based logic element with complete permutability of the inputs to the secondary signals
ALTERA CORP257 citations99
US6020760AFeb 1, 2000
I/O buffer circuit with pin multiplexing
ALTERA CORP202 citations99
US6353552B2Mar 5, 2002
PLD with on-chip memory having a shadow register
ALTERA CORP56 citations96
US6317367B1Nov 13, 2001
FPGA with on-chip multiport memory
ALTERA CORP37 citations96
US6011744AJan 4, 2000
Programmable logic device with multi-port memory
ALTERA CORP69 citations96
US6011730AJan 4, 2000
Programmable logic device with multi-port memory
ALTERA CORP31 citations96
US5870410AFeb 9, 1999
Diagnostic interface system for programmable logic system development
ALTERA CORP83 citations96
US5821773AOct 13, 1998
Look-up table based logic element with complete permutability of the inputs to the secondary signals
ALTERA CORP71 citations96
US6570404B1May 27, 2003
High-performance programmable logic architecture
ALTERA CORP29 citations93
US6034857AMar 7, 2000
Input/output buffer with overcurrent protection circuit
ALTERA CORP22 citations93
US6259588B1Jul 10, 2001
Input/output buffer with overcurrent protection circuit
ALTERA CORP14 citations74
US6219284B1Apr 17, 2001
Programmable logic device with multi-port memory
ALTERA CORP3 citations74