System, coding section, arrangement, coding apparatus, and metho

Details System, coding section, arrangement, coding apparatus, and metho System, coding section, arrangement, coding apparatus, and metho

1997-06-30

1999-01-26

Young, Brian K.

Coded data generation or conversion

Digital code to digital code converters

Adaptive coding

H03M 700

Patent

active

058643087

ABSTRACT:
Known systems use two probability signals for coding an input signal into an output signal and for decoding said output signal into the input signal. In a first memory field two probability signals are stored, and in a second memory field two other probability signals are stored, and in response to a further received symbol processor means adapt the probability signals. Such a system needs a giant memory capacity, which can be reduced by combining probability signals into a first combination signal to be stored in the first memory field and by combining further probability signals into a second combination signal to be stored in the second memory field, and by converting a third combination signal into at least one probability signal just before (de)coding takes place.

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F.M.J. Willems et al, "The Context-Tree Weighting Method: Basic Properties", IEEE Transactions on Information Theory, vol. 41, No. 3, May 1995, pp. 653-664.

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