Reduced complexity signal converter

Details Reduced complexity signal converter Reduced complexity signal converter

1997-02-06

1999-11-09

Elmore, Reba I.

Boots, shoes, and leggings

364133, 364494, 364602, 36472601, 365 45, 365433, G06F 1710

Patent

active

059800976

ABSTRACT:
In a signal converter which derives from an input signal having a sample rate R/q an output signal having a larger sample rate R, the input signal is combined with a feedback signal in a subtracter to form a single combined signal. Samples of the combined signal are mapped into a larger number of output samples by a mapper forming part of a mapping arrangement which also produces the feedback signal. The formation of a single combined signal makes the signal converter less complex in design than it would be if a number of combined signals were formed. In a further embodiment a noise shaping filter is interposed between the subtracter and the mapper.

REFERENCES:
patent: 5272655 (1993-12-01), Roza
patent: 5548286 (1996-08-01), Craven
patent: 5619406 (1997-04-01), Divan et al.

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