Robust position detection for a multi-stroke electronic brush display

• US 20060244718A1
• Filed: 07/21/2004
• Published: 11/02/2006
• Est. Priority Date: 07/24/2003
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Hiddink, Martin G. H., Costenraad, Hurbertus M. R., Bergman, Anthonie H.
• Application Number:
  US10/565,659
• Publication Number:
  US 20060244718A1
• Time in Patent Office: Days
• US Class Current: 345/156
• CPC Class Codes: G06F 3/0321 by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet constructional details of pen-shaped pointing devices G06F3/03545, G06F3/03542, G06F3/037
• CPC Class Codes: G09F 9/372 the positions of the elements being controlled by the application of an electric field
• CPC Class Codes: G09G 3/001 using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP

Abstract

The invention provides a method of activating an electronic paint (50). A registration code embedded in a first portion (20) of an image written on a portion of an electronic paint (50) is scanned. A position of an electronic brush (30) is determined based on the scanned registration code, and a second portion (22) of the image is written on the electronic paint (50) based on the determined position of the electronic brush (30).

Claims

1. A method of activating an electronic paint (50), comprising:

scanning a registration code embedded in a first portion (20) of an image written on a portion of an electronic paint (50);

determining a position of an electronic brush (30) based on the scanned registration code; and

writing a second portion (22) of the image on the electronic paint (50) based on the determined position of the electronic brush (30).

2. The method of claim 1 wherein writing the second portion (22) of the image on the electronic paint (50) comprises selectively writing a portion of the image over the embedded registration code.

3. The method of claim 1 further comprising:

writing a new registration code on an uncoded second portion (22) of the electronic paint (50) while writing the second portion (22) of the image, wherein the new registration code is embedded in the second portion (22) of the image.

4. The method of claim 3 wherein writing the new registration code comprises writing one of a registration mark (24), a grid (26), or an electronic-paint surface coordinate (28).

5. The method of claim 1 further comprising:

receiving an electronic-brush position input; and

writing an adapted registration code on an uncoded surface portion (22) of the electronic paint (50) based on the electronic-brush position input.

6. The method of claim 5 wherein the electronic-brush position input is received from one of a mechanical position detector (38) or an optical position detector (38).

7. The method of claim 1 further comprising:

receiving a tilt signal from a tilt sensor (56) attached to the electronic brush (30); and

determining a rotation of the electronic brush (30) based on the received tilt signal.

8. The method of claim 1 further comprising:

initializing the electronic paint (50) to a reset state.

9. The method of claim 8 wherein the initialized electronic paint (50) is reset to a predetermined color.

10. A system for activating an electronic paint (50), comprising:

an electronic brush (30) including an electronic-paint activation device (34);

an electronic-brush scanner (36) coupled to the electronic brush (30); and

a controller (40) in electrical communication with the electronic-paint activation device (34) and the electronic-brush scanner (36), wherein a position of the electronic brush (30) is determined based on a registration code embedded in a first portion (20) of an image written on a portion of an electronic paint (50) that is scanned by the electronic-brush scanner (36) and communicated to the controller (40), and wherein an electronic-paint write signal is sent from the controller (40) to the electronic-paint activation device (34) based on the determined electronic-brush position.

11. The system of claim 10 wherein the embedded registration code comprises one of a registration mark (24), a grid (26), or an electronic-paint surface coordinate (28).

12. The system of claim 10 further comprising:

a position detector (38) coupled to the electronic brush (30) and in electrical communication with the controller (40), wherein the position detector (38) provides an electronic-brush position signal to the controller (40) based on a movement of the electronic brush (30).

13. The system of claim 12 wherein the position detector (38) comprises at least one of a mechanical position detector (38) or an optical position detector (38).

14. The system of claim 10 wherein the electronic-paint activation device (34) and the electronic-brush scanner (36) are wired or wirelessly connected to the controller (40).

15. The system of claim 10 further comprising:

a tilt sensor (56) attached to the electronic brush (30), wherein a tilt signal from the tilt sensor (56) is received at the controller (40) to determine an electronic-brush rotation.

16. An electronic brush (30) for activating an electronic paint (50), comprising:

an electronic-brush housing (32);

an electronic-paint activation device (34) coupled to the electronic-brush housing (32);

an electronic-brush scanner (36) coupled to the electronic-brush housing (32); and

a controller (40) in electrical communication with the electronic-paint activation device (34) and the electronic-brush scanner (36), wherein a position of the electronic brush (30) is determined based on a registration code embedded in a portion of an image written on a portion of an electronic paint (50) that is scanned by the electronic-brush scanner (36) and communicated to the controller (40), and wherein an electronic-paint write signal is sent from the controller (40) to the electronic-paint activation device (34) based on the determined electronic-brush position.

17. The electronic brush (30) of claim 16 wherein the controller (40) is wired or wirelessly connected to the electronic-paint activation device (34) and the electronic-brush scanner (36).

18. The electronic brush (30) of claim 16 further comprising:

a position detector (38) coupled to the electronic brush (30) and in electrical communication with the controller (40), wherein the position detector (38) provides an electronic-brush position signal to the controller (40) based on a movement of the electronic brush (30).

19. The electronic brush (30) of claim 18 wherein the position detector (38) comprises at least one of a mechanical position detector (38) or an optical position detector (38).

20. The electronic brush (30) of claim 16 further comprising:

a tilt sensor (56) attached to the electronic brush (30) and in electrical communication with the controller (40), wherein a tilt signal from the tilt sensor (56) allows a determination of an electronic-brush rotation