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Taxes (Tables)
 3 Months Ended
Mar. 31, 2013
Reconciliation of United States Federal Statutory Corporate Tax Rate to Company's Effective Tax Rate

A reconciliation of the United States federal statutory corporate tax rate to the Company’s effective tax rate was as follows:

 

     Quarter Ended  
     March 31,
2013		     April 1,
2012		  

Income tax at federal statutory rate

      35 %      35 % 

State income taxes, net of federal benefit

      2        1   

Foreign tax rate differential

      (17 )      (15 ) 

2013 research and development credit

      (1 )      —     

Discrete event- 2012 research and development credit

      (3 )      —     
  

 

 

    

 

 

  

Income tax provision

      16 %      21 %