METHOD AND DEVICE FOR HANDWRITING DETECTION

• US 20090297028A1
• Filed: 05/30/2008
• Published: 12/03/2009
• Est. Priority Date: 05/30/2008
• Status: Active Grant

• Current Assignee: Sony Ericsson Mobile Communications USA Incorporated (Sony Group Corp.)
• Original Assignee: Sony Ericsson Mobile Communications USA Incorporated (Sony Group Corp.)
• Inventors: DE HAAN, Ido Gert
• Granted Patent: US 8,165,398 B2
• Time in Patent Office: Days
• US Class Current: 382/187
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06V 30/1423 the instrument generating sequences of position coordinates corresponding to handwriting preprocessing or recognising digital ink G06V30/32

Abstract

The invention relates to a method for handwriting detection using a handwriting tool (2) being arranged for communicating with a further device (2) and comprising the following steps: recognizing characters using detection of movements carried out by means of said handwriting tool (2); determining the probability factor of at least one input character corresponding to a given character; and using said probability factor in a step for correction, completion and prediction of words being formed by said characters. The invention also relates to a device for such handwriting detection.

Claims

1. A method for handwriting detection using a handwriting tool being arranged for communicating with a further device and comprising the following steps:

recognizing characters using detection of movements carried out by means of said handwriting tool;

determining the probability factor of at least one input character corresponding to a given character; and

using said probability factor in a step for correction, completion and prediction of words being formed by said characters.

2. A method according to claim 1, wherein said recognizing of characters is carried out by means of at least one accelerometer being arranged in said handwriting tool.

3. A method according to claim 1, wherein the step for correction, completion and prediction of words being formed by said characters is of the T9/XT9 type, or similar.

4. A method according to claim 1, wherein said handwriting tool is arranged for communicating with said further device via a wireless connection.

10. A method according to claim 2, wherein the step for correction, completion and prediction of words being formed by said characters is of the T9/XT9 type, or similar.

5. Device for handwriting detection comprising a handwriting tool being arranged for communicating with a further device and wherein:

said handwriting tool is arranged for recognizing characters using detection of movements carried out by means of said handwriting tool;

said device comprising a character recognition unit for determining the probability factor of at least one input character corresponding to a given detected character; and

being arranged for using said probability factor for correction, completion and prediction of words being formed by said characters.

6. A device according to claim 5, wherein it comprises at least one accelerometer being arranged in said handwriting tool and being arranged for recognizing said characters.

7. A device according to claim 5, wherein it is adapted for correction, completion and prediction of words being formed by said characters of the T9/XT9 type, or similar.

8. A device according to claim 5, wherein said handwriting tool is arranged for communicating with said further device via a wireless connection.

9. A device according to claim 5, wherein the headset is associated with a further device in the form of a mobile telephone, portable computer or similar communication device, wherein said output signals are used for inputting characters forming sms messages, mms messages, e-mail message or the like.

11. A device according to claim 6, wherein it is adapted for correction, completion and prediction of words being formed by said characters of the T9/XT9 type, or similar.

12. A device according to claim 6, wherein said handwriting tool is arranged for communicating with said further device via a wireless connection.

13. A device according to claim 7, wherein said handwriting tool is arranged for communicating with said further device via a wireless connection.

14. A device according to claim 6, wherein the headset is associated with a further device in the form of a mobile telephone, portable computer or similar communication device, wherein said output signals are used for inputting characters forming sms messages, mms messages, e-mail message or the like.

15. A device according to claim 7, wherein the headset is associated with a further device in the form of a mobile telephone, portable computer or similar communication device, wherein said output signals are used for inputting characters forming sms messages, mms messages, e-mail message or the like.

16. A device according to claim 8, wherein the headset is associated with a further device in the form of a mobile telephone, portable computer or similar communication device, wherein said output signals are used for inputting characters forming sms messages, mms messages, e-mail message or the like.