Method and arrangement for processing a signal using a...

Details Method and arrangement for processing a signal using a... Method and arrangement for processing a signal using a...

2006-11-14

2006-11-14

Raymond, Edward (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C324S076280

Reexamination Certificate

active

07136783

ABSTRACT:
Methods and arrangements for processing a signal using a digital processor having a given word length. The signal is pre-processed using a pre-processor which reduces the word length and performs an operation which is invariant with respect to a process being performed by the digital signal processor. This means that if the pre-processor operated with infinite accuracy, it would have no effect on the subsequent process. If such a pre-processor operates with infinite accuracy, it will reduce the guantization noise. In the digital signal processor, the pre-processed signal may be transformed into frequency coefficients which are normalized directly thereafter.

REFERENCES:
patent: 2005/0030207 (2005-02-01), Craven et al.
patent: WO 9945707 (1999-09-01), None

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