Identifier for use with digital paper

• US 7,134,606 B2
• Filed: 03/08/2005
• Issued: 11/14/2006
• Est. Priority Date: 12/24/2003
• Status: Expired due to Fees

• Current Assignee: KT International, Inc.
• Original Assignee: KT International, Inc.
• Inventors: Chou, Henwell
• Primary Examiner(s): Le, Uyen-Chau N.
• Application Number:
  US11/074,539
• Publication Number:
  US 20050211783A1
• Time in Patent Office: 616 Days
• Field of Search: 235 50 R- 57, 235/494
• US Class Current: 235/494
• CPC Class Codes: G07C 13/00 Voting apparatus

Abstract

An identification system includes several sheets formed of digital paper each having a unique identifier on a writing surface thereof. Each digital paper may have a form printed on the writing surface. Data representing the form and the location thereof relative to the writing surface is stored in a computer. A digital pen connectable to the computer is compatible with the digital paper for recording pen strokes made by the digital pen and the location of the pen strokes relative to the writing surface. The digital pen includes an ink dispensing tip for marking the writing surface according to the pen strokes. The computer is connectable to the digital pen for retrieving and storing the data representing the pen strokes for each sheet. Upon completion of a form, the computer compares the data representing the pen strokes with the form data and determines the user input to the form.

Claims

1. A digital paper identification system comprising:

a processor having a memory coupled thereto;

a plurality of sheets, each sheet including digital paper of the same or different digital pattern relative to each other, and having a writing surface and a unique identifier formed thereon, the writing surface including a predefined pattern extending throughout the writing surface defining coordinates on the writing surface which are prestored in the memory;

the unique identifier being separate and distinct from the predefined pattern extending throughout the writing surface, the unique identifier including a pattern corresponding to at least one identifiable cell of the predefined pattern formed on a specific sheet of the digital paper such that each sheet is identifiable one from the other;

a digital pen for communicating with the processor, the digital pen including an ink dispensing tip for marking the writing surface of the digital paper and a camera for capturing images of the markings corresponding to pen strokes made by the digital pen and the predefined pattern on the writing surface associated with the location of the markings,

the unique identifier being markable by the digital pen for providing data to identify the marked sheet;

the processor configured for communicating with the digital pen and retrieving from the digital pen the data representing the captured images including the predefined pattern on the writing surface and the pen strokes formed on each of the sheets and including means for storing the data representing the unique identifier and the corresponding pen strokes data for each sheet in the memory, and for processing the data representing the pen strokes for each sheet.

2. The system according to claim 1 further comprising a monitor coupled to the processor and configured to display an electronic image of the sheet.

3. The system according to claim 2 wherein the processor is configured for generating and displaying on the monitor an electronic image of the sheet in real time while the sheet is being marked upon.

4. A digital paper identification system comprising:

a processor having a memory and a monitor coupled thereto;

a plurality of sheets, each sheet including digital paper of the same or different digital pattern relative to each other, and having a writing surface and a unique identifier formed thereon for distinguishing each of the sheets from among the plurality of sheets, each sheet having a form printed on the writing surface for completion by a user;

the writing surface including a predefined pattern extending throughout the writing surface defining coordinates on the writing surface which are prestored in the memory;

the unique identifier being separate and distinct from the predefined pattern extending throughout the writing surface, the unique identifier including a pattern corresponding to at least one identifiable cell of the predefined pattern formed on a specific sheet of the digital paper such that each of the sheets is identifiable one from the other;

form data corresponding to each sheet and representing the form and a location thereof relative to the writing surface being stored in the memory;

a digital pen connectable to the processor, the digital pen including an ink dispensing tip for marking the writing surface of the paper and a camera for capturing images of the markings corresponding to pen strokes made by the digital pen and the predefined pattern on the writing surface associated with the location of the markings,

the unique identifier being markable by the digital pen for providing data identify the marked sheet;

means for generating and displaying on the monitor an electronic image of the sheet including the pen strokes created by a user employing the digital pen and retrieved by the processor.

5. The system according to claim 4 wherein the processor is configured to store data representing the electronic image of each sheet in accordance with the unique identifier associated with the sheet.

6. The system according to claim 4 wherein the digital paper includes a plurality of dots disposed in a pre-defined pattern throughout the writing surface thereof.

7. The system according to claim 4 further comprising means for selecting the identifiable cell of the master sheet from a plurality of cells each having a different pattern relative to each other.

8. The system according to claim 7 wherein the means for selecting the identifiable cell includes randomly selecting the identifiable cell of the master sheet.

9. The system according to claim 7 wherein the unique identifier is associated with a cell number corresponding to the identifiable cell of the master sheet.

10. The system according to claim 4 wherein the unique identifier includes at least one pattern corresponding to an identifiable cell of each of an ordered series of master sheets of the digital paper.

11. The system according to claim 4 wherein the processor is configured for determining user selections marked on one of the sheets while the sheet is being marked upon, and for comparing the pen strokes and the location thereof recorded by the digital pen with the form data corresponding to the sheet.

12. The system according to claim 4 wherein each of the sheets includes a form pre-printed on the digital paper including at least one of a unique identifier.

13. The system according to claim 4 wherein each sheet defines an accept area on the writing surface where a user can indicate acceptance of a completed form by marking the accept area using the digital pen.

14. The system according to claim 13 wherein the processor is configured to record and store data representing an image of a completed form along with the time and date of the acceptance thereof and the unique identifier associated with the completed form.

15. The system according to claim 4 wherein the processor is configured to generate and display at least one of an electronic image of the sheet and a verification screen identifying user written ink strokes on the sheet.

16. A sheet for receiving written information, comprising:

a sheet of digital paper having a writing surface for being written on by a digital pen, the writing surface including a predefined pattern extending throughout the writing surface defining coordinates on the writing surface;

a unique identifier cell printed on the sheet of digital paper configured for distinguishing from among sheets of digital predefined pattern extending throughout the writing surface defining coordinates on the writing surface;

a unique identifier formed on the sheet of the digital paper configured for distinguishing from among sheets of digital paper having the same or different digital pattern relative to each other; and

the unique identifier being separate and distinct from the predefined pattern extending throughout the writing surface, the unique identifier including at least one pattern corresponding to an identifiable cell of the predefined pattern formed on a specific sheet of the digital paper such that data representing the unique identifier is recordable via a digital pen for identifying the sheet of the digital paper.

17. The sheet according to claim 16 wherein the pattern associated with the unique identifier is comparable to a pattern associated with the specific sheet of digital paper.

18. The sheet according to claim 16 wherein the unique identifier comprises a series of patterns each corresponding to identifiable cells of a master sheet of digital paper.

19. The sheet according to claim 16 wherein the unique identifier is imprinted on the sheet of digital paper.

20. A sheet for receiving written information, comprising:

a sheet of digital paper having a writing surface for being written on by a digital pen, the writing surface including a predefined pattern extending throughout the writing surface defining coordinates on the writing surface;

a unique identifier cell printed on the sheet of digital paper configured for distinguishing from among sheets of digital paper having the same or different digital pattern relative to each other; and

the unique identifier cell being separate and distinct from the predefined pattern extending throughout the writing surface, the unique identifier cell including at least one pattern corresponding to an identifiable cell of a master sheet of the digital paper such that data representing the unique identifier cell is recordable via a digital pen for identifying the sheet of digital paper.

21. The sheet according to claim 20 wherein the pattern associated with the unique identifier cell is comparable to a pattern associated with the master sheet of digital paper.

22. The sheet according to claim 20 wherein the unique identifier cell comprises a series of patterns each corresponding to identifiable cells of the master sheet of digital paper.

23. The sheet according to claim 20 wherein the unique identifier cell is imprinted on the sheet of digital paper.

24. The sheet according to claim 20 wherein the unique identifier cell is associated with a command on processing of ink stroke data on the digital paper.

25. The sheet according to claim 24 wherein the command is to delete an ink stroke for a predetermined area on the digital paper as marked by the digital pen.

26. The sheet according to claim 24 wherein the command is to resume accepting ink strokes on the digital paper.