0000950123-09-054408 8-K 1 20091029 7.01 20091029 20091029 CADENCE DESIGN SYSTEMS INC 0000813672 7372 770148231 DE 1229 8-K 34 001-10606 091143040 2655 SEELY ROAD BLDG 5 SAN JOSE CA 95134 4089431234 555 RIVER OAKS PARKWAY SAN JOSE CA 95134 ECAD INC /DE/ 19880609 8-K 1 f53878e8vk.htm FORM 8-K