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Handwritten keyboardless entry computer system    
United States Patent5157737   
Link to this pagehttp://www.wikipatents.com/5157737.html
Inventor(s)Sklarew; Ralph (Reston, VA)
AbstractA keyboardless entry computer system includes a transparent input screen that generates positional information when contacted by a stylus, and a display screen mounted physically below the input screen such that a character that is displayed can be seen below the input screen. The system includes a computer that has been programmed to compile the positional information into Strokes, to calculate Stroke characteristics, and then compare the Stroke characteristics with those stored in a database in order to recognize the symbol drawn by the stylus. Key features of the system are: (1) transparent position sensing sybsystem; (2) underlying display on which to mimic drawing of sensed positions and to show characters or symbols; (3) means to convert sensed positions first into plotted Points and then into recognized characters or symbols; and (4) means to "learn" to associate sensed input positions with a character or symbol.



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Drawing from US Patent 5157737
Handwritten keyboardless entry computer system - US Patent 5157737 Drawing
Handwritten keyboardless entry computer system
Inventor     Sklarew; Ralph (Reston, VA)
Owner/Assignee     Grid Systems Corporation (Fremont, CA)
Patent assignment
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Publication Date     * October 20, 1992
Application Number     07/523,447
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     May 14, 1990
US Classification     382/315 345/173
Int'l Classification     G06K 009/00
Examiner     Boudreau; Leo H.
Assistant Examiner    
Attorney/Law Firm     Townsend and Townsend
Address
Parent Case     REFERENCE TO RELATED CASE This is a continuation of application Ser. No. 029,772 filed Mar. 24, 1987 which is a continuation-in-part of U.S. patent application Ser. No. 06/889,513, filed Jul. 25, 1986, now abandoned.
Priority Data    
USPTO Field of Search     382/13 382/59 178/18
Patent Tags     handwritten keyboardless entry computer
   
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Market Size
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> $10B
$5B - $10B
$2B - $5B
$500M - $2B
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$10M - $100M
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$0   $2.5B   $5B   $7.5B   $10B
Market Share
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50% - 74.99%
25% - 49.99%
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2 - 4.99%
1 - 1.99%
< 1%