Variable length code construction apparatus

Details Variable length code construction apparatus Variable length code construction apparatus

1997-02-20

1999-03-16

Hoff, Marc S.

Coded data generation or conversion

Digital code to digital code converters

To or from variable length codes

341 65, H03M 740

Patent

active

058835890

ABSTRACT:
An apparatus for constructing a variable length code includes a unit for producing a unique word consisting of continuous N "0" bits, a prefix processing unit for producing a codeword including at least one "1" bit, the prefix of the codeword having continuous "0" bits with a length equal to or shorter than s, and a suffix processing unit for modifying a bit pattern of the produced codeword from the prefix processing unit so that the suffix of the codeword has continuous "0" bits with a bit length equal to or shorter than t, that a bit length of continuous "0" bits in the codeword is shorter than N, and that s+t<N is satisfied.

REFERENCES:
patent: 4146909 (1979-03-01), Beckenhauer et al.
patent: 4990910 (1991-02-01), Takishima et al.
patent: 5077760 (1991-12-01), Lepage
patent: 5091971 (1992-02-01), Ward et al.
patent: 5396595 (1995-03-01), Standley
patent: 5488367 (1996-01-01), Kitamura
patent: 5528628 (1996-06-01), Park et al.

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