Intangible Assets

6 Months Ended

Jun. 29, 2012

Intangible Assets

3. Intangible Assets

We amortize intangible assets with finite lives on a straight-line basis over their estimated useful lives. Intangible assets are reviewed for impairment when events or circumstances indicate their carrying amount may not be recoverable. We review the estimated useful lives of intangible assets to determine if events or circumstances warrant a change in the remaining useful life of an asset.

In conjunction with the January 30, 2012, restructuring plan, we recorded $47.7 million of accelerated amortization to Restructuring and other charges for abandoned intangible assets in the first quarter of 2012 related to the mobile packet core technology. As a result of the abandonment, we wrote these assets down to zero in the first quarter of 2012.

The gross carrying amount and accumulated amortization of intangible assets subject to amortization are as follows:

	6/29/12
	Gross Assets		Accumulated Amortization			Net
Developed technology	$	147.6	$	(147.3	)	$	0.3
Customer relationships		30.9		(24.7	)		6.2
Total	$	178.5	$	(172.0	)	$	6.5

	12/30/11
	Gross Assets			Accumulated Amortization			Net
Developed technology	$	212.8		$	(169.1	)	$	43.7
Customer relationships		35.2			(23.7	)		11.5
Trade names/trademarks		0.2			(0.2	)		—
Leasehold improvements		(2.7	)		2.3			(0.4	)
Non-compete arrangements		13.1			(10.8	)		2.3
Total	$	258.6		$	(201.5	)	$	57.1

The estimated future amortization expense of intangible assets subject to amortization as of June 29, 2012 follows:

2012 (remaining six months)	$	2.1
2013	$	4.2
2014	$	0.1
2015	$	0.1