Note 7 – Intangibles

Intangibles at December 31, 2012 and December 31, 2011 were as follows:



(In thousands)		December 31, 2012						December 31, 2011
		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Capitalized software development costs	$	45,064	$	(23,450)	$	21,614	$	44,198	$	(20,718)	$	23,480
Acquired technology		89,876		(42,562)		47,314		67,918		(32,210)		35,708
Patents		24,046		(9,398)		14,648		21,875		(7,992)		13,883
Other		27,421		(17,084)		10,337		24,614		(13,819)		10,795
	$	186,407	$	(92,494)	$	93,913	$	158,605	$	(74,739)	$	83,866

Software development costs capitalized during 2012, 2011 and 2010 were $12.2 million, $12.6 million and $16.5 million, respectively, and related amortization was $14.1 million, $13.4 million and $10.7 million, respectively. Included in these capitalized costs for the years ended December 31, 2012, 2011 and 2010, were costs related to stock based compensation of $519,000, $539,000 and $719,000, respectively. We have conformed the prior year balances related to capitalized software development costs to the current year presentation, which is net of fully amortized assets.

Amortization of capitalized software development costs is computed on an individual product basis for those products available for market and is recognized based on the product’s estimated economic life, generally three years. Acquired intangible assets which include acquired technology and other are amortized over their useful lives, which range from three to eight years. Patents are amortized using the straight-line method over their estimated period of benefit, generally ten to seventeen years. Total intangible assets amortization expenses were $28.1 million, $25.5 million and $17.9 million for the years ended December 31, 2012, 2011 and 2010, respectively.

Capitalized software development costs, acquired technology, patents and other had weighted-average useful lives of 1.5 years, 2.5 years, 4.0 years, and 2.0 years, respectively, as of December 31, 2012. The estimated future amortization expense related to intangible assets as of December 31, 2012 was as follows:



		Amount
		(In thousands)
2013	$	34,892
2014		21,787
2015		15,445
2016		9,220
2017		4,928
Thereafter		7,641
	$	93,913

The overall increase in our acquired technology and other intangible assets can be attributed to our acquisitions in 2012. See Note 16 – Acquisitions of Notes to Consolidated Financial Statements for additional discussion related to these acquisitions.