Patent ID: 6766490
Filing Date: 2004-07-20
Classification: H03M

Abstract:
A method for encoding an initial sequence of binary digits, said initial sequence having a length of K bits, said method comprising the steps of:a) separating, in a portable computer system disposed within a housing that is sized so that it is portable substantially within the hand of a user, said portable computer system comprising a handwriting recognition pad having a first region for alphabetic characters and a second region for numeric characters, said initial sequence of binary digits into a first segment and a second segment, said first segment comprising a first portion of said K bits and said second segment comprising a second portion of said K bits different from said first portion; b) adding in said portable computer system one or more binary zeroes to said first segment and to said second segment such that said first segment and said second segment each have a length of K bits; c) operating on in said portable computer system said first segment and said second segment with a code generator to generate a first encoded sequence and a second encoded sequence; and d) forming in said portable computer system an encoded sequence for said sequence of binary digits by XORing said first encoded sequence and said second encoded sequence.