Textual data storage system and method

Abstract

A hand-held electronic device for use in accessing and displaying textual information. The device may include: a display for displaying information; a processor; a memory; and a word dictionary table stored in the memory, the word dictionary table may include a word list of unique words that are contained in the textual information. The word dictionary table may also include a set of word identification tokens, where each word identification token represents one of the unique words in the word list. The memory may also include a phrase dictionary table, which may include a phrase list of word identification token groups, each word identification token group representing a phrase that is contained in the textual information. The phrase dictionary table may further include a set of phrase identification tokens, each phrase identification token representing one of the phrases in the textual information. The memory may include a removable module.

I claim:  
     
         1 . A method for storing data comprising: 
 storing a word dictionary in a memory, the word dictionary including a first list of the unique words that are contained in the data and that also includes a set of word identification tokens, each word identification token representing one of the unique words in the first list; and    storing a phrase dictionary in the memory, the phrase dictionary including a second list of word identification token groups, each word identification token group representing a phrase that is contained in the data, the second list further including a set of phrase identification tokens, each phrase identification token representing one of the word identification token groups.    
     
     
         2 . The method of  claim 1 , further comprising the step of: 
 determining an optimum range of the length of the phrases that are to be included in the phrase dictionary and including only phrases of optimum length in the phrase dictionary.    
     
     
         3 . The method of  claim 1 , wherein the data comprises textual information.  
     
     
         4 . The method of  claim 3 , wherein the textual information comprises automotive repair and servicing information.  
     
     
         5 . The method of  claim 1 , wherein the memory comprises at least one removable module.