| Patent | Date |
|---|
Waveform propagation timing modeling for circuit design
Grant 10,796,049 - Han , et al. October 6, 2 | 2020-10-06 |
View pruning for routing tree optimization
Grant 10,643,019 - Han , et al. | 2020-05-05 |
Systems and methods for routing a clock net with multiple layer ranges
Grant 10,579,767 - Li , et al. | 2020-03-03 |
Routing topology generation using spine-like tree structure
Grant 10,460,065 - Liu , et al. Oc | 2019-10-29 |
Placement of cells in a multi-level routing tree
Grant 10,402,533 - Reece , et al. Sep | 2019-09-03 |
Region aware clustering
Grant 10,402,522 - Viswanathan , et al. Sep | 2019-09-03 |
Systems and methods for modifying a balanced clock structure
Grant 10,380,287 - Meyer , et al. A | 2019-08-13 |
Systems and methods for clock tree generation with buffers and inverters
Grant 10,354,040 - Farshidi , et al. July 16, 2 | 2019-07-16 |
Balanced scaled-load clustering
Grant 10,318,693 - Viswanathan , et al. | 2019-06-11 |
Local cluster refinement
Grant 10,289,797 - Viswanathan , et al. | 2019-05-14 |
Systems and methods for assigning clock taps based on timing
Grant 10,289,775 - Wilson , et al. | 2019-05-14 |
Routing tree topology generation
Grant 10,289,795 - Gao , et al. | 2019-05-14 |
Systems and methods for clock tree clustering
Grant 10,282,506 - Meyer , et al. | 2019-05-07 |
Clock cell library selection
Grant 10,198,551 - Farshidi , et al. Fe | 2019-02-05 |
System and method for constructing spanning trees
Grant 10,102,328 - Liu , et al. October 16, 2 | 2018-10-16 |
System and method for evaluating spanning trees
Grant 9,785,738 - Alpert , et al. October 10, 2 | 2017-10-10 |
Solving network traffic congestion using device grouping
Grant 9,106,560 - Alpert , et al. August 11, 2 | 2015-08-11 |
Early design cycle optimization
Grant 9,038,009 - Alpert , et al. May 19, 2 | 2015-05-19 |
Congestion aware routing using random points
Grant 9,026,976 - Alpert , et al. May 5, 2 | 2015-05-05 |
Creating regional routing blockages in integrated circuit design
Grant 8,930,873 - Alpert , et al. January 6, 2 | 2015-01-06 |
Solving traffic congestion using vehicle grouping
Grant 8,897,998 - Alpert , et al. November 25, 2 | 2014-11-25 |
Solving traffic congestion using vehicle grouping
Grant 8,892,344 - Alpert , et al. November 18, 2 | 2014-11-18 |
Physical synthesis optimization with fast metric check
Grant 8,881,089 - Alpert , et al. November 4, 2 | 2014-11-04 |
Solving traffic congestion using vehicle grouping
Grant 8,831,875 - Alpert , et al. September 9, 2 | 2014-09-09 |
Direct current circuit analysis based clock network design
Grant 8,775,996 - Alpert , et al. July 8, 2 | 2014-07-08 |
Determining High Quality Initial Candidate Sink Locations For Robust Clock Network Design
App 20140181772 - Alpert; Charles Jay ; et al. | 2014-06-26 |
Direct Current Circuit Analysis Based Clock Network Design
App 20140143746 - Alpert; Charles Jay ; et al. | 2014-05-22 |
Early Design Cycle Optimzation
App 20140101629 - Alpert; Charles Jay ; et al. | 2014-04-10 |
Solving Traffic Congestion Using Vehicle Grouping
App 20140088791 - ALPERT; Charles Jay ; et al. | 2014-03-27 |
Solving Traffic Congestion Using Vehicle Grouping
App 20140081478 - Alpert; Charles Jay ; et al. | 2014-03-20 |
Latch clustering with proximity to local clock buffers
Grant 8,677,299 - Alpert , et al. March 18, 2 | 2014-03-18 |
Designing a robust power efficient clock distribution network
Grant 8,677,305 - Alpert , et al. March 18, 2 | 2014-03-18 |
Solving Traffic Congestion Using Vehicle Grouping
App 20140074389 - Alpert; Charles Jay ; et al. | 2014-03-13 |
Solving Network Traffic Congestion Using Device Grouping
App 20140071827 - ALPERT; CHARLES JAY ; et al. | 2014-03-13 |
Multiple threshold voltage cell families based integrated circuit design
Grant 8,656,334 - Alpert , et al. February 18, 2 | 2014-02-18 |
Early design cycle optimzation
Grant 8,640,075 - Alpert , et al. January 28, 2 | 2014-01-28 |
Early Design Cycle Optimzation
App 20130326450 - Alpert; Charles Jay ; et al. | 2013-12-05 |
Designing A Robust Power Efficient Clock Distribution Network
App 20130326456 - Alpert; Charles Jay ; et al. | 2013-12-05 |
Solving congestion using net grouping
Grant 8,601,425 - Alpert , et al. December 3, 2 | 2013-12-03 |
Solving Congestion Using Net Grouping
App 20130275934 - Alpert; Charles Jay ; et al. | 2013-10-17 |
Congestion Aware Routing Using Random Points
App 20130272126 - Alpert; Charles Jay ; et al. | 2013-10-17 |
Multi-patterning lithography aware cell placement in integrated circuit design
Grant 8,495,548 - Agarwal , et al. July 23, 2 | 2013-07-23 |
Latch clustering with proximity to local clock buffers
Grant 8,458,634 - Alpert , et al. June 4, 2 | 2013-06-04 |
Routing and timing using layer ranges
Grant 8,443,324 - Alpert , et al. May 14, 2 | 2013-05-14 |
Cost-effective And Reliable Utilities Distribution Network
App 20130096976 - Alpert; Charles Jay ; et al. | 2013-04-18 |
Multi-patterning Lithography Aware Cell Placement In Integrated Circuit Design
App 20130086543 - Agarwal; Kanak Behari ; et al. | 2013-04-04 |
Timing driven routing in integrated circuit design
Grant 8,386,985 - Alpert , et al. February 26, 2 | 2013-02-26 |
Whitespace Creation And Preservation In Circuit Design
App 20120297355 - Alpert; Charles Jay ; et al. | 2012-11-22 |
Timing Driven Routing In Integrated Circuit Design
App 20120284683 - Alpert; Charles Jay ; et al. | 2012-11-08 |
Routing And Timing Using Layer Ranges
App 20120240093 - Alpert; Charles Jay ; et al. | 2012-09-20 |
Latch Clustering With Proximity To Local Clock Buffers
App 20120110532 - Alpert; Charles Jay ; et al. | 2012-05-03 |
Object placement in integrated circuit design
Grant 8,108,819 - Alpert , et al. January 31, 2 | 2012-01-31 |
Object Placement In Integrated Circuit Design
App 20100262944 - Alpert; Charles Jay ; et al. | 2010-10-14 |
Techniques for super fast buffer insertion
Grant 7,676,780 - Alpert , et al. March 9, 2 | 2010-03-09 |
System And Computer Program Product For Diffusion Based Cell Placement Migration
App 20090064074 - Alpert; Charles Jay ; et al. | 2009-03-05 |
Method For Diffusion Based Cell Placement Migration
App 20090064073 - Alpert; Charles Jay ; et al. | 2009-03-05 |
Method and apparatus for diffusion based cell placement migration
Grant 7,464,356 - Alpert , et al. December 9, 2 | 2008-12-09 |
Techniques for super fast buffer insertion
Grant 7,392,493 - Alpert , et al. June 24, 2 | 2008-06-24 |
Techniques For Super Fast Buffer Insertion
App 20080072202 - Alpert; Charles Jay ; et al. | 2008-03-20 |
Probabilistic congestion prediction with partial blockages
Grant 7,299,442 - Alpert , et al. November 20, 2 | 2007-11-20 |
Clustering techniques for faster and better placement of VLSI circuits
Grant 7,296,252 - Alpert , et al. November 13, 2 | 2007-11-13 |
Method and apparatus for diffusion based cell placement migration
App 20070143724 - Alpert; Charles Jay ; et al. | 2007-06-21 |
Method and apparatus for performing density-biased buffer insertion in an integrated circuit design
Grant 7,137,081 - Alpert , et al. November 14, 2 | 2006-11-14 |
Method and apparatus for generating steiner trees using simultaneous blockage avoidance, delay optimization and design density management
Grant 7,127,696 - Alpert , et al. October 24, 2 | 2006-10-24 |
Probabilistic congestion prediction with partial blockages
App 20060156266 - Alpert; Charles Jay ; et al. | 2006-07-13 |
Stability metrics for placement to quantify the stability of placement algorithms
Grant 7,073,144 - Alpert , et al. July 4, 2 | 2006-07-04 |
Porosity aware buffered steiner tree construction
Grant 7,065,730 - Alpert , et al. June 20, 2 | 2006-06-20 |
Techniqes for super fast buffer insertion
App 20060112364 - Alpert; Charles Jay ; et al. | 2006-05-25 |
Method of and system for buffer insertion, layer assignment, and wire sizing using wire codes
Grant 7,036,104 - Alpert , et al. April 25, 2 | 2006-04-25 |
Latch placement technique for reduced clock signal skew
Grant 7,020,861 - Alpert , et al. March 28, 2 | 2006-03-28 |
Clustering-based multilevel quadratic placement
App 20060031802 - Alpert; Charles Jay ; et al. | 2006-02-09 |
Clustering techniques for faster and better placement of VLSI circuits
App 20060031804 - Alpert; Charles Jay ; et al. | 2006-02-09 |
Practical methodology for early buffer and wire resource allocation
Grant 6,996,512 - Alpert , et al. February 7, 2 | 2006-02-07 |
Method and system for determining an interconnect delay utilizing an effective capacitance metric (ECM) signal delay model
Grant 6,968,306 - Alpert , et al. November 22, 2 | 2005-11-22 |
Stability metrics for placement to quantify the stability of placement algorithms
App 20050235237 - Alpert, Charles Jay ; et al. | 2005-10-20 |
Interconnect delay and slew metrics based on the lognormal distribution
Grant 6,950,996 - Alpert , et al. September 27, 2 | 2005-09-27 |
Optimal buffered routing path constructions for single and multiple clock domains systems
Grant 6,915,361 - Alpert , et al. July 5, 2 | 2005-07-05 |
Apparatus and method for incorporating driver sizing into buffer insertion using a delay penalty estimation technique
Grant 6,915,496 - Alpert , et al. July 5, 2 | 2005-07-05 |
Method and apparatus for performing density-biased buffer insertion in an integrated circuit design
App 20050138589 - Alpert, Charles Jay ; et al. | 2005-06-23 |
Method and apparatus for generating steiner trees using simultaneous blockage avoidance, delay optimization and design density management
App 20050138578 - Alpert, Charles Jay ; et al. | 2005-06-23 |
Buffer insertion with adaptive blockage avoidance
Grant 6,898,774 - Alpert , et al. May 24, 2 | 2005-05-24 |
Hybrid quadratic placement with multiple linear system solvers
App 20050086622 - Alpert, Charles Jay ; et al. | 2005-04-21 |
Method and system for extending delay and slew metrics to ramp inputs
Grant 6,868,533 - Alpert , et al. March 15, 2 | 2005-03-15 |
Latch placement technique for reduced clock signal skew
App 20050015738 - Alpert, Charles Jay ; et al. | 2005-01-20 |
Interconnect delay and slew metrics based on the lognormal distribution
App 20040243955 - Alpert, Charles Jay ; et al. | 2004-12-02 |
Porosity aware buffered steiner tree construction
App 20040216072 - Alpert, Charles Jay ; et al. | 2004-10-28 |
Robust delay metric for RC circuits
Grant 6,807,659 - Alpert , et al. October 19, 2 | 2004-10-19 |
Buffer insertion with adaptive blockage avoidance
App 20040123261 - Alpert, Charles Jay ; et al. | 2004-06-24 |
Method and system for extending delay and slew metrics to ramp inputs
App 20040103379 - Alpert, Charles Jay ; et al. | 2004-05-27 |
Optimal buffered routing path constructions for single and multiple clock domain systems
App 20040068626 - Alpert, Charles Jay ; et al. | 2004-04-08 |
Apparatus and method for incorporating driver sizing into buffer insertion using a delay penalty estimation technique
App 20040064793 - Alpert, Charles Jay ; et al. | 2004-04-01 |
Robust delay metric for RC circuits
App 20040064798 - Alpert, Charles Jay ; et al. | 2004-04-01 |
Apparatus and method for determining buffered steiner trees for complex circuits
Grant 6,591,411 - Alpert , et al. July 8, 2 | 2003-07-08 |
Apparatus and method for buffer library selection for use in buffer insertion
Grant 6,560,752 - Alpert , et al. May 6, 2 | 2003-05-06 |
Practical methodology for early buffer and wire resource allocation
App 20020184607 - Alpert, Charles Jay ; et al. | 2002-12-05 |
Apparatus and method for determining buffered steiner trees for complex circuits
App 20020133799 - Alpert, Charles Jay ; et al. | 2002-09-19 |
Method and system for re-routing interconnects within an integrated circuit design having blockages and bays
Grant 6,401,234 - Alpert , et al. June 4, 2 | 2002-06-04 |
Method and apparatus for performing buffer insertion with accurate gate and interconnect delay computation
Grant 6,347,393 - Alpert , et al. February 12, 2 | 2002-02-12 |
Optimum buffer placement for noise avoidance
Grant 6,117,182 - Alpert , et al. September 12, 2 | 2000-09-12 |
Method and system for segmenting wires prior to buffer insertion
Grant 6,044,209 - Alpert , et al. March 28, 2 | 2000-03-28 |
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