Apparatus and method for calculating and implementing a...

Details Apparatus and method for calculating and implementing a... Apparatus and method for calculating and implementing a...

2007-12-25

2007-12-25

Ghebretinsae, Temesghen (Department: 2611)

Pulse or digital communications

Spread spectrum

C708S252000, C708S250000

Reexamination Certificate

active

11233419

ABSTRACT:
An apparatus and method for calculating and implementing a Fibonacci mask for a code generator is disclosed herein. The first step receives a desired code offset from a reference code state in a Fibonacci field. Next, a field vector in a Galois field with the same code offset sought in the first field is calculated. In the next step, the first field vector is transformed into a second field vector, which is operable as a mask in the Galois LFSR. The transform step is accomplished by multiplying the Galois field vector by a linear N×N transformation matrix to obtain the Fibonacci field vector. And the N×N transformation matrix is obtained from iterated states of the Fibonacci LFSR.

REFERENCES:
patent: 5926070 (1999-07-01), Barron et al.
patent: 6038577 (2000-03-01), Burshtein
patent: 6141374 (2000-10-01), Burns
patent: 6141669 (2000-10-01), Carleton
patent: 6154101 (2000-11-01), Zou et al.
patent: 6163548 (2000-12-01), Rainish et al.

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