N-state ripple adder scheme coding with corresponding...

Details N-state ripple adder scheme coding with corresponding... N-state ripple adder scheme coding with corresponding...

2011-04-12

2011-04-12

Lauture, Joseph (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

C380S255000

Reexamination Certificate

active

07924176

ABSTRACT:
Methods and apparatus for implementing an n-state ripple-adder scheme coder with n≧2 using an n-state reversible switching function and a non-reversible n-state switching function acting upon a first and a second word of at least 2 n-state symbols are disclosed. Corresponding decoding methods and apparatus are also disclosed. A resulting codeword may be a codeword which can be decoded by using the identical or different n-state switching functions in a corresponding ripple adder scheme decoder. Feistel networks and LFSRs apply the coding and decoding. Systems using the coding and decoding methods may be communication, storage and/or financial systems.

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