High speed signal processor

Details High speed signal processor High speed signal processor

2007-03-09

2009-06-02

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C375S245000

Reexamination Certificate

active

07541959

ABSTRACT:
A waveform acquisition system that captures and digitizes a wideband electrical signal through a bank of front end filters, frequency down converters, and conventional digitizers (A/D converters). A software algorithm reconstructs the composite input signal and applies the necessary corrections to remove the effects of hardware impairments. This approach is possible because it uses a class of filters that exhibit the quality of perfect waveform reconstruction, allowing signals whose spectral components overlap multiple filter bands, to be faithfully reconstructed. A calibration generator switched into the input port serves as a reference for quantifying and removing hardware errors. The channelized analog-to-digital converter (ADC) effectively multiplies the bandwidth and sampling rate of the conventional digitizer performance in a single channel by the number of channels in the system. The use of digital local oscillators enable a compact, low power, monolithic architecture.

REFERENCES:
patent: 1059 (1838-12-01), Konig
patent: H001059 (1992-05-01), Konig
patent: 5963889 (1999-10-01), Irregger et al.
patent: 5963899 (1999-10-01), Bayya et al.
patent: 6075820 (2000-06-01), Comino et al.
patent: 6380879 (2002-04-01), Kober et al.
patent: 6411653 (2002-06-01), Arunachalam et al.
patent: 6463450 (2002-10-01), Balachandran et al.
patent: 6492914 (2002-12-01), Katoh
patent: 6532256 (2003-03-01), Miller
patent: 6806820 (2004-10-01), Dhalla et al.
patent: 6980147 (2005-12-01), Mathis et al.
“Theory and Design ofM-Channel Maximally Decimated Quadrature Mirror Filters with ArbitraryM, Having the Perfect-Reconstruction Property”, by P.P. Vaidyanathan,;IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-35, No. 4, Apr. 1987.

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