Enhancing signal to noise ratio of an interpolated signal

Details Enhancing signal to noise ratio of an interpolated signal Enhancing signal to noise ratio of an interpolated signal

2008-06-17

2008-06-17

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

Data rate conversion

C341S060000, C370S465000

Reexamination Certificate

active

07388524

ABSTRACT:
Providing interpolated signals with enhanced signal-to-noise-ratio (SNR). In an embodiment, for each digital sample (of an analog signal) having strength Dn, N values are inserted, with the kth inserted value having a strength of Dn(1+/−Dk), wherein Dk is selected randomly from within a range set according to quantization noise. The received digital samples along with inserted digital values are provided as the interpolated signal corresponding to the input signal represented by the received digital samples.

REFERENCES:
patent: 5928313 (1999-07-01), Thompson
patent: 6861968 (2005-03-01), Melanson et al.
patent: 7082143 (2006-07-01), LeBlanc et al.

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