| US 7,471,224 B2 | ||
| Broadband analog to digital conversion using analog spectral recording | ||
| William R. Babbitt, Bozeman, Mont. (US); Mark Allen Neifeld, Tucson, Ariz. (US); and Kristian D. Merkel, Bozeman, Mont. (US) | ||
| Assigned to Montana State University, Bozeman, Mont. (US) | ||
| Filed on Nov. 06, 2006, as Appl. No. 11/556,751. | ||
| Claims priority of provisional application 60/734727, filed on Nov. 07, 2005. | ||
| Prior Publication US 2007/0223936 A1, Sep. 27, 2007 | ||
| Int. Cl. H03M 1/00 (2006.01) | ||
| U.S. Cl. 341—133 [341/155] | 40 Claims |
| 1. A method for converting an analog waveform to a series of digital values comprising:
receiving an input analog waveform to be digitized over a particular frequency band;
recording a phase-sensitive frequency-domain representation of the input analog waveform without using a spectral-spatial
holographic (SSH) material with inhomogeneously broadened transition (IBT) absorption properties;
digitizing a readout of the phase-sensitive frequency-domain representation to produce a spectral series of digital values;
and
determining, based on the spectral series, an output series of digital values that represent the analog waveform digitized
over the particular frequency band.
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