Method and apparatus for encoding multiple character sets

Details Method and apparatus for encoding multiple character sets Method and apparatus for encoding multiple character sets

1997-06-30

1999-07-27

Hoff, Marc S.

Coded data generation or conversion

Digital code to digital code converters

Substituting specified bit combinations for other prescribed...

341 95, H03M 700

Patent

active

059297921

ABSTRACT:
Each character in a message is segregated into a range depending on the value of the character and encoded based on the range of the character. The encoding techniques may include removing all but the lowest byte, removing all but the lowest byte and masking one or more bits, base 64 encoding, base 64 encoding certain bits, and subtracting prior to base 64 encoding certain bits. To certain encoded characters is added a shift character, which can be used to determine how to decode the character. Multiple characters in the same range may be encoded and placed between a shift lock character and a shift unlock character, with the shift lock character used to determine how to decode the encoded characters. The encoded characters may be decoded using the encoded character, and the absence or presence of any shift, shift lock or shift unlock characters.

REFERENCES:
patent: 5389924 (1995-02-01), Ogawa
patent: 5682158 (1997-10-01), Edberg et al.
patent: 5687366 (1997-11-01), Harvey, III et al.

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