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Segment Information (Tables) | 3 Months Ended
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Apr. 05, 2015
Segment Information | Segment information for the three months ended April 5, 2015 and March 30, 2014 is as follows:
|  | Semiconductor Test |  |  | Wireless Test |  |  | System Test |  |  | Corporate and Eliminations |  |  | Consolidated |
|  | (in thousands) |
Three months ended April 5, 2015: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 270,917 |  |  | $ | 34,048 |  |  | $ | 37,436 |  |  | $ | — |  |  | $ | 342,401 |
Income (loss) before taxes (1)(2) |  |  | 43,125 |  |  |  | (10,441 | ) |  |  | 1,005 |  |  |  | 8,749 |  |  |  | 42,438 |
Three months ended March 30, 2014: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 261,737 |  |  | $ | 21,210 |  |  | $ | 38,063 |  |  | $ | — |  |  | $ | 321,010 |
Income (loss) before taxes (1)(2) |  |  | 34,600 |  |  |  | (25,085 | ) |  |  | 448 |  |  |  | (11,836 | ) |  |  | (1,873 | )
(1) | Interest income, interest expense, and other (income) expense, net are included in Corporate and Eliminations.
(2) | Included in the income (loss) before income taxes for each of the segments are charges related to inventory and other.
Semiconductor Test |
Schedule of Segment Reporting Information by Segment Charges | Included in the Semiconductor Test segment are charges and credits in the following line item in the statements of operations:
|  | For the Three Months Ended |
|  | April 5, 2015 |  |  | March 30, 2014 |
|  | (in thousands) |
Cost of revenues - inventory charge |  | $ | 531 |  |  | $ | 6,205 |
Wireless Test |
Schedule of Segment Reporting Information by Segment Charges | Included in the Wireless Test segment are charges and credits in the following line item in the statements of operations:
|  | For the Three Months Ended |
|  | April 5, 2015 |  |  | March 30, 2014 |
|  | (in thousands) |
Cost of revenues - inventory charge |  | $ | 846 |  |  | $ | 3,093 |
System Test |
Schedule of Segment Reporting Information by Segment Charges | Included in the System Test segment are charges and credits in the following line item in the statements of operations:
|  | For the Three Months Ended |
|  | April 5, 2015 |  |  | March 30, 2014 |
|  | (in thousands) |
Cost of revenues - inventory charge |  | $ | 63 |  |  | $ | 741 |
Corporate And Eliminations |
Schedule of Segment Reporting Information by Segment Charges | Included in Corporate and Eliminations are charges and credits in the following line items in the statements of operations:
|  | For the Three Months Ended |
|  | April 5, 2015 |  |  | March 30, 2014 |
|  | (in thousands) |
Other (income) expense, net - gain from the sale of an equity investment |  | $ | (4,782 | ) |  | $ | — |
Selling and administrative - stock -based compensation charge (1) |  |  | — |  |  |  | 6,598 |
(1) | See Note J: “Stock-Based Compensation” regarding the stock-based compensation charge.

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