Assignee
ALTERA CORP
US3,312 patents
Top patents by PatentIndex Score
US7996749B2Aug 9, 2011
Signal loss detector for high-speed serial interface of a programmable logic device
ALTERA CORP414 citations99
US7328377B1Feb 5, 2008
Error correction for programmable logic integrated circuits
ALTERA CORP126 citations99
US7310757B2Dec 18, 2007
Error detection on programmable logic resources
ALTERA CORP114 citations99
US7135888B1Nov 14, 2006
Programmable routing structures providing shorter timing delays for input/output signals
ALTERA CORP179 citations99
US7120883B1Oct 10, 2006
Register retiming technique
ALTERA CORP129 citations99
US6943580B2Sep 13, 2005
Fracturable lookup table and logic element
ALTERA CORP105 citations99
US6798240B1Sep 28, 2004
Logic circuitry with shared lookup table
ALTERA CORP175 citations99
US6750675B2Jun 15, 2004
Programmable logic devices with multi-standard byte synchronization and channel alignment for communication
ALTERA CORP108 citations99
US6704889B2Mar 9, 2004
Enhanced embedded logic analyzer
ALTERA CORP211 citations99
US6686769B1Feb 3, 2004
Programmable I/O element circuit for high speed logic devices
ALTERA CORP146 citations99
US6658564B1Dec 2, 2003
Reconfigurable programmable logic device computer system
ALTERA CORP149 citations99
US6628140B2Sep 30, 2003
Programmable logic devices with function-specific blocks
ALTERA CORP108 citations99
US6556044B2Apr 29, 2003
Programmable logic device including multipliers and configurations thereof to reduce resource utilization
ALTERA CORP233 citations99
US6538470B1Mar 25, 2003
Devices and methods with programmable logic and digital signal processing regions
ALTERA CORP318 citations99
US6525678B1Feb 25, 2003
Configuring a programmable logic device
ALTERA CORP165 citations99
US6460148B2Oct 1, 2002
Enhanced embedded logic analyzer
ALTERA CORP145 citations99
US6326807B1Dec 4, 2001
Programmable logic architecture incorporating a content addressable embedded array block
ALTERA CORP132 citations99
US6292016B1Sep 18, 2001
Programmable logic with on-chip DLL or PLL to distribute clock
ALTERA CORP93 citations99
US6285211B1Sep 4, 2001
I/O buffer circuit with pin multiplexing
ALTERA CORP131 citations99
US6275065B1Aug 14, 2001
Programmable logic integrated circuit architecture incorporating a lonely register
ALTERA CORP123 citations99
US6236231B1May 22, 2001
Programmable logic integrated circuit devices with low voltage differential signaling capabilities
ALTERA CORP111 citations99
US6215326B1Apr 10, 2001
Programmable logic device architecture with super-regions having logic regions and a memory region
ALTERA CORP331 citations99
US6205579B1Mar 20, 2001
Method for providing remote software technical support
ALTERA CORP164 citations99
US6184707B1Feb 6, 2001
Look-up table based logic element with complete permutability of the inputs to the secondary signals
ALTERA CORP257 citations99
US6157210ADec 5, 2000
Programmable logic device with circuitry for observing programmable logic circuit signals and for preloading programmable logic circuits
ALTERA CORP157 citations99
US6134173AOct 17, 2000
Programmable logic array integrated circuits
ALTERA CORP143 citations99
US6130552AOct 10, 2000
Programmable logic integrated circuit with on-chip DLL or PLL for clock distribution
ALTERA CORP105 citations99
US6085317AJul 4, 2000
Reconfigurable computer architecture using programmable logic devices
ALTERA CORP208 citations99
US6020759AFeb 1, 2000
Programmable logic array device with random access memory configurable as product terms
ALTERA CORP144 citations99
US6020760AFeb 1, 2000
I/O buffer circuit with pin multiplexing
ALTERA CORP202 citations99
US6020758AFeb 1, 2000
Partially reconfigurable programmable logic device
ALTERA CORP201 citations99
US6005806ADec 21, 1999
Nonvolatile configuration cells and cell arrays
ALTERA CORP139 citations99
US5963069AOct 5, 1999
System for distributing clocks using a delay lock loop in a programmable logic circuit
ALTERA CORP142 citations99
US5949710ASep 7, 1999
Programmable interconnect junction
ALTERA CORP191 citations99
US5909126AJun 1, 1999
Programmable logic array integrated circuit devices with interleaved logic array blocks
ALTERA CORP133 citations99
US5894228AApr 13, 1999
Tristate structures for programmable logic devices
ALTERA CORP128 citations99
US5815726ASep 29, 1998
Coarse-grained look-up table architecture
ALTERA CORP287 citations99
US5815003ASep 29, 1998
Programmable logic integrated circuits with partitioned logic element using shared lab-wide signals
ALTERA CORP95 citations99
US5744991AApr 28, 1998
System for distributing clocks using a delay lock loop in a programmable logic circuit
ALTERA CORP216 citations99
US5689195ANov 18, 1997
Programmable logic array integrated circuit devices
ALTERA CORP454 citations99
US5606266AFeb 25, 1997
Programmable logic array integrated circuits with enhanced output routing
ALTERA CORP101 citations99
US5581501ADec 3, 1996
Nonvolatile SRAM cells and cell arrays
ALTERA CORP186 citations99
US5561757AOct 1, 1996
Computer user interface having tiled and overlapped window areas
ALTERA CORP110 citations99
US5550782AAug 27, 1996
Programmable logic array integrated circuits
ALTERA CORP369 citations99
US5541530AJul 30, 1996
Programmable logic array integrated circuits with blocks of logic regions grouped into super-blocks
ALTERA CORP181 citations99
US5537057AJul 16, 1996
Programmable logic array device with grouped logic regions and three types of conductors
ALTERA CORP326 citations99
US5487143AJan 23, 1996
Computer user interface having tiled and overlapped window areas
ALTERA CORP323 citations99
US5485103AJan 16, 1996
Programmable logic array with local and global conductors
ALTERA CORP285 citations99
US5483178AJan 9, 1996
Programmable logic device with logic block outputs coupled to adjacent logic block output multiplexers
ALTERA CORP237 citations99
US5371422ADec 6, 1994
Programmable logic device having multiplexers and demultiplexers randomly connected to global conductors for interconnections between logic elements
ALTERA CORP302 citations99
Showing the top 50 of 3,312 patents by PatentIndex Score.