Method and apparatus for interleave/de-interleave addressing in

Details Method and apparatus for interleave/de-interleave addressing in Method and apparatus for interleave/de-interleave addressing in

1997-02-10

1999-03-23

Lane, Jack A.

Excavating

371 21, G06F 1100

Patent

active

058869980

ABSTRACT:
Interleaving/de-interleaving of data is achieved by storing and subsequently retrieving portions of the data from circular buffers (60,70). The circular buffers (60,70) are addressed such that each circular buffer corresponds to an index of data (B.sub.i). Thus, data (80) is written into a circular buffer (60,70) using a first modulo scheme and read using a second modulo scheme, where the second modulo scheme is based on the interleaving scheme. An index array (20) is used to point to the appropriate entry in the circular buffers(60,70) to ensure a proper interleave/de-interleave process.

REFERENCES:
patent: 4742517 (1988-05-01), Takagi et al.
patent: 5056105 (1991-10-01), Darmon et al.
patent: 5592492 (1997-01-01), Ben-Efraim et al.

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