System and method for collaborative handwriting input

• US 20050147301A1
• Filed: 07/23/2002
• Published: 07/07/2005
• Est. Priority Date: 08/08/2001
• Status: Abandoned Application

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Inventors: Naitoh, Arimasa, Kumaki, Atsushi, Su, Hui, Wang, Jingtao
• Application Number:
  US10/486,262
• Publication Number:
  US 20050147301A1
• Time in Patent Office: Days
• US Class Current: 382/187
• CPC Class Codes: G06F 3/0233 Character input methods
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06V 30/1423 the instrument generating sequences of position coordinates corresponding to handwriting preprocessing or recognising digital ink G06V30/32

Abstract

A system and method for collaborative handwriting input. An input hand-held computer captures, stores and redisplays ink information from a user and transfers the ink information to a recognition computer via a communication connection, which then recognizes it and outputs recognition result. A method is also employed in such a system for collaborative handwriting input. And in an embodiment, the system can comprise a recognition computer and a plurality of input hand-held computers.

Claims

1. A system for collaborative handwriting input, comprising:

an input hand-held computer, comprising;

first protocol abstraction layer means for establishing communication connection for handwriting input based on standard communication protocols;

ink capture means for collecting and storing ink information from a user;

first ink display means for display the captured ink information;

ink information transferring means for transmitting the captured ink information to a recognition computer via said first protocol abstraction layer means; and

the recognition computer comprising;

second protocol abstraction layer means for establishing communication connection for handwriting input based on standard communication protocols;

ink information receiving means for receiving the ink information form said input hand-held computer;

handwriting recognizer for recognizing the received ink information to generate a recognition result including recognition candidates;

result output means for outputting the recognition results.

2. The system of claim 1, wherein said input hand-held computer further comprising:

recognition result receiving means for receiving the recognition result from said recognition computer;

candidate display/selection means for displaying the recognition candidates in the received recognition result and accepting a selection for the candidates by the user;

selection information transferring means for transmitting the selection information of the user to said recognition computer via said first protocol abstraction layer means; and

wherein said recognition computer further comprising;

recognition result transferring means for transmitting the recognition result to said input hand-held computer via said second protocol abstraction layer means;

selection information receiving means for receiving the selection information from said input hand-held computer via said second protocol abstraction layer means.

3. The system of claim 2, wherein said recognition computer further comprising second ink display means for redisplaying the received ink information.

4. The system of claim 2, wherein said input hand-held computer further comprising:

first preference setup means for setting user preferences of handwriting input;

preference transferring means for transmitting the user preferences to said recognition computer via first protocol abstraction layer means; and

wherein said recognition computer further comprising;

second preference setup means for setting user preferences of handwriting input;

preference receiving means for receiving the user preferences from said input hand-held computer via second protocol abstraction layer means.

5. The system of claim 2, wherein said input hand-held computer further comprising a client user manager for maintaining a unique user ID that identifies said input hand-held computer and transmitting the user ID to said recognition computer via said first protocol abstraction layer means;

and

said recognition computer further comprising a user manager for verifying the user ID received from said input hand-held computer and initiating a corresponding user instance.

6. The system of claim 5, wherein the system comprising a recognition computer and a plurality of input hand-held computers.

7. A method for collaborative handwriting input in a information processing system including a recognition computer and an input hand-held computer, comprising:

establishing a communication connection between the recognition computer and the input hand-held computer;

capturing, storing and display ink information from a user on the input hand-held computer;

transferring captured ink information to the recognition computer;

recognizing the ink information on the recognition computer; and

outputting recognition result.

8. The method of claim 7, wherein said recognizing step further comprising:

transferring the recognition result form the recognition computer to the input hand-held computer;

displaying recognition candidates in the recognition result on the input hand-held computer;

accepting a selection of the user for the candidates; and

transferring the selection information of the user from the input hand-held computer to the recognition computer.

9. The method of claim 7, wherein said capturing step and said transferring step are synchronous, and further comprising the step of determining whether the user stop input activity for a predetermined time.

10. The method of claim 7, wherein said step of transferring ink information further comprising the step of redisplay the input ink on the recognition computer.

11. The method of claim 7, wherein said recognizing step further comprising:

outputting a character with the highest probability in the recognition result to a specific application;

transferring the recognition result from the recognition computer to the input hand-held computer;

displaying recognition candidates in the recognition result on the input hand-held computer;

determining whether the user selects correction, if not, return to capturing step;

accepting a selection for the candidates by the user;

transferring the selection information from the input hand-held computer to the recognition computer; and

replacing the character output to the specific application with the character selected by the user.

12. The method of claim 7, wherein said establishing step comprising:

sending a user ID from the input hand-held computer to the recognition computer;

verifying the user ID on the recognition computer;

initiating a corresponding user instance for each user ID on the recognition computer; and

establishing a communication connection between the recognition computer and the input hand-held computer.

13. The method of claim 12, wherein said information processing system comprising a recognition computer and a plurality of input hand-held computers.