G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 12/02 (2006.01) G06F 5/06 (2006.01) G06F 9/355 (2006.01) H03H 17/02 (2006.01)
Patent
CA 2070668
The invention relates to an address processor for a signal processor. This address processor comprises means for address calculation in a read/write memory containing at least one circular buffer for storing state variables of digital filters. This means comprises a set (S) of registers for storing the current folding address (mod pointer) for each circular buffer relative to the absolute start address of the buffer. Furthermore, a calculation unit (+) is included for (1) adding the current folding address to the displacement (dataaddr,writeaddr) of a selected state variable relative to the corresponding buffer start address, (2) reducing the sum obtained in step (1) with the corresponding buffer length (modnumb) if the sum exceeds or is equal to this buffer length, and (3) adding the buffer start address to the result obtained in (2) for obtaining the absolute address of the selected state variable.
Andersson Rojas Karl-Gunnar
Andre Tore Mikael
Marks & Clerk
Telefonaktiebolaget Lm Ericsson
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