Wireless handwriting input device using graffitis and bluetooth

• US 20020067350A1
• Filed: 12/06/2000
• Published: 06/06/2002
• Est. Priority Date: 12/06/2000
• Status: Abandoned Application

• Current Assignee: Mourad Ben Ayed
• Original Assignee: Mourad Ben Ayed
• Inventors: Ben Ayed, Mourad
• Application Number:
  US09/729,968
• Publication Number:
  US 20020067350A1
• Time in Patent Office: Days
• US Class Current: 345/179
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06V 30/142 using hand-held instruments; Constructional details of the instruments
• CPC Class Codes: G06V 40/20 Movements or behaviour, e.g. gesture recognition recognition of facial expressions G06V40/16

Abstract

Wireless input device apparatus allows a user to input data into cellular phones, personal digital assistant, TVs and computers.

The user holds a wireless stylus and performs movements corresponding to graffiti. In the preferred embodiment, graffiti refers to PalmPilot graffiti. The wireless stylus identifies the user symbols and wirelessly sends them to a terminal device. In the preferred embodiment, the wireless stylus uses a BlueTooth transmitter for connecting and sending data to terminal devices, thus, the wireless stylus can be used for inputting data into any BlueTooth compliant system.

In another embodiment, the wireless stylus sends the raw accelerometer data to a terminal device, which identifies the user symbols.

Claims

1. A method for input of handwriting, comprising:

holding a wireless electronic stylus;

pushing a button;

performing movements in the air that correspond to graffiti symbols.

2. The method of claim 1 where said electronic stylus performs the followings:

establish a wireless connection with a receiving device.

3. The method of claim 2 further comprising:

getting output from accelerometer,

4. The method of claim 3 further comprising:

getting acceleration sequences characterizing each of a plurality of graffiti symbols from memory;

correlating accelerometer output to said acceleration sequences;

identifying graffiti symbols.

5. The method of claim 4 further comprising:

correlating graffiti symbols to letters.

6. The method of claim 5 further comprising:

correlating graffiti symbols to numbers.

7. The method of claim 4 further comprising:

correlating graffiti symbols to symbols.

8. The method of claim 5 further comprising:

wirelessly sending identified symbols to said receiving device.

9. The method of claim 8 further comprising:

displaying identified symbols.

10. The method of claim 3 further comprising:

wirelessly sending said accelerometer output to said receiving device.

11. The method of claim 10 further comprising said receiving device doing the following:

getting acceleration sequences characterizing each of a plurality of graffiti symbols from memory;

correlating accelerometer output to said acceleration sequences;

identifying graffiti symbols;

12. The method of claim 11 further comprising:

Correlating graffiti symbols to letters.

13. The method of claim 12 further comprising:

Correlating graffiti symbols to numbers.

14. The method of claim 3 where graffiti corresponds to PalmPilot graffiti set.

16. The apparatus of claim 15 containing a database of acceleration sequences

characterizing each of a plurality of graffiti symbols.

17. The apparatus of claim 16 wherein said transmitter is a BlueTooth transmitter.

18. The apparatus of claim 17 wherein said graffiti set is the PalmPilot graffiti set.

15. Apparatus for input of handwriting, comprising:

a wireless stylus fitted with accelerometers and a transmitter.