CP

Carl Preston Pixley

SY Synopsys: 17 patents #30 of 2,302Top 2%
Motorola: 6 patents #1,752 of 12,470Top 15%
MT Microelectronic & Computer Technology: 1 patents #56 of 112Top 50%
Overall (All Time): #173,488 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10325054 Invariant sharing to speed up formal verification Himanshu Jain, Per M. Bjesse 2019-06-18
9870442 Equivalence checking between two or more circuit designs that include square root circuits Himanshu Jain 2018-01-16
9501597 Elimination of illegal states within equivalence checking Himanshu Jain 2016-11-22
9189581 Equivalence checking between two or more circuit designs that include division circuits Himanshu Jain 2015-11-17
8914758 Equivalence checking using structural analysis on data flow graphs Sudipta Kundu 2014-12-16
8732637 Formal verification of bit-serial division and bit-serial square-root circuit designs Himanshu Jain 2014-05-20
8589836 Formally checking equivalence using equivalence relationships Alfred Koelbl 2013-11-19
8079000 Method and apparatus for performing formal verification using data-flow graphs Alfred Koelbl 2011-12-13
8001500 Method and apparatus for formally checking equivalence using equivalence relationships Alfred Koelbl 2011-08-16
7836414 Formally proving the functional equivalence of pipelined designs containing memories Alfred Koelbl, Jerry R. Burch 2010-11-16
7523423 Method and apparatus for production of data-flow-graphs by symbolic simulation Alfred Koelbl 2009-04-21
7509604 Method and apparatus for formally comparing stream-based designs Alfred Koelbl 2009-03-24
7509599 Method and apparatus for performing formal verification using data-flow graphs Alfred Koelbl 2009-03-24
7389479 Formally proving the functional equivalence of pipelined designs containing memories Alfred Koelbl, Jerry R. Burch 2008-06-17
7386820 Method and apparatus for formally checking equivalence using equivalence relationships Alfred Koelbl 2008-06-10
7260800 Method and apparatus for initial state extraction Alfred Koelbl 2007-08-21
7107553 Method and apparatus for solving constraints Brian Lockyear, James H. Kukula, Robert F. Damiano 2006-09-12
6321186 Method and apparatus for integrated circuit design verification Jun Yuan, Stephen Shultz, Hillel Miller 2001-11-20
5999717 Method for performing model checking in integrated circuit design Matthew Kaufmann, Andrew K. Martin 1999-12-07
5754454 Method for determining functional equivalence between design models Jaehong Park 1998-05-19
5680332 Measurement of digital circuit simulation test coverage utilizing BDDs and state bins Richard Raimi 1997-10-21
5638381 Apparatus and method for deriving correspondence between storage elements of a first circuit model and storage elements of a second circuit model Hyunwoo Cho 1997-06-10
5572535 Method and data processing system for verifying the correct operation of a tri-state multiplexer in a circuit design Hyunwoo Cho, Bernard Plessier, Jesse R. Wilson, Ralph McGarity 1996-11-05
5331568 Apparatus and method for determining sequential hardware equivalence 1994-07-19