Intangible Assets (Tables)

12 Months Ended

Jan. 27, 2013

Notes to financial statements [Abstract]

Amortizable Intangible Assets Components



	January 27, 2013								January 29, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Useful Life
	(In thousands)							(In years)	(In thousands)							(In years)
Acquisition-related intangible assets	$	172,039	$	(96,389	)	$	75,650	6.9	$	172,039	$	(79,261	)	$	92,778	6.0
Patents and licensed technology	407,002		(170,320		)	236,682		7.0	352,386		(119,028		)	233,358		7.3
Total intangible assets	$	579,041	$	(266,709	)	$	312,332		$	524,425	$	(198,289	)	$	326,136

- Definition

Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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