Exhibit 12.1

Cadence Design Systems, Inc
Ratio of earnings to fixed charges
$ in thousands

				Restated
	Year ended			(FY 2002)			(FY 2001)		(FY 2000)		(FY 1999)
	January 3, 2004			December 28, 2002			December 29, 2001		December 30, 2000		January 2, 2000
Earnings
Income (loss) before income taxes	$	(30,565	)	$	144,020		$	242,148	$	67,996	$	(11,380	)
Minority interest		—			—			1,900		600		100
Earnings (losses) in equity interests		(10,251	)		(8,108	)		200		1,100		100
Fixed charges		12,783			10,570			11,165		9,798		11,633
Net ‘Earnings’ as defined	$	(7,531	)	$	162,698		$	251,213	$	76,094	$	53
Fixed Charges
Total operating lease expenses	$	23,343		$	23,300		$	25,600	$	22,200	$	25,000
Interest component of operating lease expense (deemed to be 1/3 of op. lease expense)		7,781			7,767			8,533		7,400		8,333
Interest expense		5,002			2,803			2,632		2,398		3,300
Total Fixed charges	$	12,783		$	10,570		$	11,165	$	9,798	$	11,633
Earnings to fixed charges ratio		(0.6	)		15.4			22.5		7.8		0.0
Earnings excess (deficiency)	$	(20,314	)	$	152,128		$	240,048	$	66,296	$	(11,580	)