Method and apparatus for recognizing handwriting of different users of a pen-based computer system
First Claim
1. A method of recognizing the handwriting of one of several users of a pen-based computer comprising the steps of:
- providing a pen-based computer having memory and a dual-function display assembly capable of receiving input and producing output;
providing user-specific handwriting data for a primary user and at least one guest user, said user-specific handwriting data including handwriting style data generically applicable to a corresponding user'"'"'s handwriting, the handwriting style data including at least one handwriting style preference selected from the group consisting of printing, cursive, mixed printing and cursive, and at least one from the group consisting of recognition speed and word separation;
storing said user-specific handwriting data for said primary user and said at least one guest user in said memory;
displaying a handwriting preferences option on said dual-function display assembly;
directing a pointing device to said preferences option to communicate user interactive events to said pen-based computer, said user interactive events including user identification;
identifying the user of the pen-based computer; and
interpreting the handwriting of said user using said user-specific handwriting data appropriate for said user.
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Accused Products
Abstract
A computer system and method capable of handwriting recognition and user identification are presented. The computer system includes a CPU, a dual-function display assembly and a stylus. The dual-function display assembly senses the relative position of the stylus with respect to the dual-function display. When an appropriate prompt is displayed, a user responds by application of the stylus to the dual-function display to enter user identity, handwriting, handwriting style, handwriting preferences, and other input to the computer system. Using user-specific handwriting preferences and data, improved handwriting recognition for the user is enabled.
99 Citations
40 Claims
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1. A method of recognizing the handwriting of one of several users of a pen-based computer comprising the steps of:
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providing a pen-based computer having memory and a dual-function display assembly capable of receiving input and producing output; providing user-specific handwriting data for a primary user and at least one guest user, said user-specific handwriting data including handwriting style data generically applicable to a corresponding user'"'"'s handwriting, the handwriting style data including at least one handwriting style preference selected from the group consisting of printing, cursive, mixed printing and cursive, and at least one from the group consisting of recognition speed and word separation; storing said user-specific handwriting data for said primary user and said at least one guest user in said memory; displaying a handwriting preferences option on said dual-function display assembly; directing a pointing device to said preferences option to communicate user interactive events to said pen-based computer, said user interactive events including user identification; identifying the user of the pen-based computer; and interpreting the handwriting of said user using said user-specific handwriting data appropriate for said user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of identifying a user of a pen-based computer capable of handwriting recognition, said method comprising the steps of:
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providing a computer system capable of storing data in memory, a stylus, and a dual-function display assembly including both a liquid crystal display linked to said computer system and an input tablet capable of determining the position of said stylus overlying said liquid crystal display; displaying an image on said liquid crystal display to query the identity of said user; determining said identity of said user with said computer system using the position of said stylus with respect to said input tablet; retrieving data from a database using said computer system, said database having data for a primary user and at least one guest user, said data including handwriting style data generically applicable to said user'"'"'s handwriting, the handwriting style data including at least one handwriting style preference selected from the group consisting of printing, cursive, mixed printing and cursive, and at least one from the group consisting of recognition speed and word separation; and utilizing said data to facilitate recognition of handwriting applied to said input tablet by said user with said stylus. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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13. A computer readable medium containing program instructions for recognizing the handwriting for one of several users of a pen-based computer including a dual-function display assembly and a memory, said program instructions comprising instructions for:
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providing user-specific handwriting data for a primary user and at least one guest user, said user-specific handwriting data including handwriting style data generically applicable to a corresponding user'"'"'s handwriting, the handwriting style data including at least one handwriting style preference selected from the group consisting of printing, cursive, mixed printing and cursive, and at least one from the group consisting of recognition speed and word separation; storing said user-specific handwriting data for said primary user and said at least one guest user in said memory; displaying a handwriting preferences option on said dual-function display assembly; identifying the user of the pen-based computer; and interpreting the handwriting of said user using said user-specific handwriting data appropriate for said user. - View Dependent Claims (25, 33, 34, 35, 36, 37, 38, 39, 40)
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20. A hand-held pen-based computer capable of identifying a user to facilitate handwriting recognition comprising:
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a housing; a dual-function display mounted in said housing, said dual-function display being pressure sensitive; an audio system enclosed within said housing for communicating with said user; a pointing device, said pointing device being formed with a hand grip and a pointed end for application against said display; and a computer system enclosed within said housing and connected to communicate with said dual-function display and said audio system, said computer system being adapted with appropriate software, memory and processing capacity to store handwriting data specific to a primary user and at least one guest user, to identify the user and to recognize handwriting applied to said dual-function display by said pointing device using said handwriting data specific to said user, wherein said handwriting data specific to said user includes handwriting style data generically applicable to said user'"'"'s handwriting, the handwriting style data including at least one handwriting style preference selected from the group consisting of printing, cursive, mixed printing and cursive, and at least one from the group consisting of recognition speed and word separation. - View Dependent Claims (21, 22, 23, 24, 26, 27)
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28. A pen-based computer system comprising:
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a digital processor; read/write memory coupled to said digital processor; a display screen coupled to said digital processor; a pointing device coupled to said digital processor, said pointing device being operative to enter strokes which are interpreted as electronic ink by said computer system; a recognizer implemented by said digital processor for recognizing ink created by a user with said pointing device; and means for identifying said user and associating user-specific handwriting data stored on said pen-based computer system with said user such that said recognizer is able to recognize said ink input by said user with greater accuracy using said user-specific handwriting data, said user-specific handwriting data including handwriting style data generically applicable to said user'"'"'s handwriting, the handwriting style data including at least one handwriting style preference selected from the group consisting of printing, cursive, mixed printing and cursive, and at least one from the group consisting of recognition speed and word separation. - View Dependent Claims (29, 30, 31, 32)
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Specification