Method and system for encoding and decoding typographic characters
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United States of America Patent
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May 28, 2002
Grant Date -
N/A
app pub date -
Nov 7, 1997
filing date -
Nov 7, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system suitable for encoding typographic characters into two digit base ten values and to decode such values to typographic characters are disclosed. The system maps typographic characters, such as letters in the English language and puctuation symbols into two decimal digit numeric codes. The mapped numeric codes allow all upper and lower case English letters to be identified by a unique two digit code, that may be encoded using conventional DTMF tones. The system similarly decodes two digit numeric codes, so encoded. The system optionally include a DTMF generator and decoder. Methods used by the system are also disclosed.
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