Assignee
ZYCAD CORP
US9 patents
Top patents by PatentIndex Score
US5594363AJan 14, 1997
Logic cell and routing architecture in a field programmable gate array
ZYCAD CORP142 citations96
US5633518AMay 27, 1997
Nonvolatile reprogrammable interconnect cell with FN tunneling and programming method thereof
ZYCAD CORP61 citations93
US5594698AJan 14, 1997
Random access memory (RAM) based configurable arrays
ZYCAD CORP51 citations92
US5457653AOct 10, 1995
Technique to prevent deprogramming a floating gate transistor used to directly switch a large electrical signal
ZYCAD CORP26 citations92
US4769817ASep 6, 1988
Concurrent fault simulation for logic designs
ZYCAD CORP74 citations88
US5604888AFeb 18, 1997
Emulation system employing motherboard and flexible daughterboards
ZYCAD CORP40 citations87
US5773862AJun 30, 1998
Floating gate FGPA cell with separated select device
ZYCAD CORP19 citations84
USD282746SFeb 25, 1986
Special purpose computer housing
ZYCAD CORP9 citations71
USD282260SJan 21, 1986
Housing for computer module
ZYCAD CORP8 citations70