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Circuitry for converting a sampled digital signal to a naturally sampled digital signal and method therefor Grant 6,665,338 - Midya , et al. December 16, 2 | 2003-12-16 |
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Method and apparatus for data backup and restoration in a portable data device Grant 6,317,755 - Rakers , et al. November 13, 2 | 2001-11-13 |
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