Digital pen and a method of storing digital records of the use made of the digital pen

• US 8,081,171 B2
• Filed: 03/17/2005
• Issued: 12/20/2011
• Est. Priority Date: 03/20/2004
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Adams, Guy de Warrenne Bruce, MacKenzie, Andrew
• Primary Examiner(s): Shankar, Vijay
• Application Number:
  US11/082,049
• Publication Number:
  US 20050207823A1
• Time in Patent Office: 2,469 Days
• Field of Search: 345/169, 345173-184, 178 1801- 1807, 178 1901- 1906, 382115-125, 382186-190, 382313-314
• US Class Current: 345/179
• 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: G06F 3/03545 Pens or stylus

Abstract

A digital pen of the kind having means to sense and create a digital record of the use made of the pen and a memory in which the digitised record is stored also includes a reader for communication with memory tags by inductive coupling. The means to sense and create a digital record of the use made of the pen may include a camera. Preferably the reader for communication with memory tags is located at the opposite end of the pen from a nib for convention writing, and the pen includes a battery power supply.

Claims

1. A digital pen having:

means to sense and create a digital record of the use made of the pen, said means including a camera and a pressure sensor,

a memory in which is stored a unique unmodifiable identifier of the pen, a plurality of standard sets of data relating to users of the pen and their roles, and in which the digital record is stored,

means to select an appropriate standard set of data relating to a particular user of the pen and their role,

a nib, and

a wireless memory reader and writer for communication with memory tags by inductive coupling, wherein the coupling also powers the memory tags, and wherein the wireless memory tag reader and writer is configured to download the digital record of the use made of the pen to at least one of the memory tags,

wherein the wireless memory tag reader and writer is located near an opposite end of the pen from the nib.

2. A digital pen according to claim 1, wherein the memory tags are RFID tags.

3. A digital pen having:

means to sense and create a digital record of the use made of the pen, said means including a camera and a pressure sensor,

a memory in which is stored a unique unmodifiable identifier of the pen and in which the digital record is stored,

a nib, and

a wireless memory reader and writer for communication with memory tags by inductive coupling, wherein the coupling also powers the memory tags, and wherein the wireless memory tag reader and writer is configured to download the digital record of the use made of the pen to at least one of the memory tags,

wherein the wireless memory tag reader and writer is located near an opposite end of the pen from the nib.

4. A digital pen according to claim 3, wherein the memory tags are RFID tags.

5. A digital pen having means to sense and create a digital record of the use made of the pen and a memory in which the digital record is stored, wherein the pen further includes:

a wireless memory tag reader and writer for communication with memory tags by inductive coupling, wherein the inductive coupling also powers the memory tags, and wherein the wireless memory tag reader and writer is configured to download the digital record of the use made of the pen to at least one of the memory tags; and

a nib, and wherein the wireless memory tag reader and writer is located near an opposite end of the pen from the nib.

6. A digital pen according to claim 5 wherein the means to sense and create a digital record of the use made of the pen includes a camera.

7. A digital pen according to claim 5 wherein the means to sense and create a digital record of the use made of the pen includes a pressure sensor.

8. A digital pen according to claim 5 further comprising a battery power supply.

9. A digital pen according to claim 5 further comprising a switch for control of the wireless memory tag reader and writer for communication with memory tags.

10. A digital pen according to claim 5 wherein the control of the wireless memory tag reader and writer for communication with memory tags is provided by the standard functionality of the digital pen.

11. A digital pen according to claim 5 further comprising a feedback device to inform the user of when the wireless memory tag reader and writer couples to a memory tag.

12. A digital pen according to claim 11 wherein the feedback device also informs the user of when a data download to or upload from a memory tag has been completed.

13. A digital pen according to claim 11 wherein the feedback device includes a light source which is illuminated to provide feedback to the user.

14. A digital pen according to claim 11 wherein the feedback device includes a sound generator which is activated to provide feedback to the user.

15. A digital pen according to claim 11 wherein the feedback device includes a vibration unit which is activated to provide feedback to the user.

16. A digital pen according to claim 5 further comprising, within the memory, a set of standard data which is included in any data download to a memory tag.

17. A digital pen according to claim 16 wherein the standard set of data is a unique unmodifiable identifier put into memory during the manufacture of the digital pen.

18. A digital pen according to claim 17 wherein a private/public key pair is associated with the unique unmodifiable identifier of the pen, and the private key is used to encrypt the digital record made of the use made of the pen, and wherein the wireless memory tag reader and writer is configured to download the encrypted digital record made of the use made of the pen to the at least one of the memory tags.

19. A digital pen according to claim 18 wherein the means by which a required set of standard data may be selected includes reading information from a memory tag associated with a document on which the pen is being used.

20. A digital pen according to claim 18 wherein the means by which a required set of standard data may be selected includes detecting the use made of the pen on a document.

21. A digital pen according to claim 16 further comprising, within the memory, a plurality of additional sets of standard data and a means by which a required set of standard data may be selected for inclusion in a data download to a memory tag.

22. A digital pen according to claim 21 wherein the additional sets of standard data relate to different users of the pen and/or different roles of a user of the pen and function as user identifiers.

23. A digital pen according to claim 22 wherein each user identifier has associated with it a public/private key pair, and the private key is used to encrypt the digital record made of the use made of the pen, and wherein the wireless memory tag reader and writer is configured to download the encrypted digital record made of the use made of the pen to the at least one of the memory tags.

24. A digital pen according to claim 21 wherein the means by which a required set of standard data may be selected includes a switch and a display.

25. A digital pen according to claim 21 wherein the means by which a required set of standard data may be selected includes the user logging in when starting a writing session with the pen and logging out when they have finished the writing session.

26. A digital pen according to claim 21 wherein the means by which a required set of standard data may be selected includes the use of biometrics.

27. A digital pen according to claim 26 wherein the use of biometrics includes identifying the user of the pen by identifying the handwriting being created by the use of the pen.

28. A digital pen according to claim 27 wherein the use of biometrics includes identifying the user of the pen using their fingerprint.

29. A digital pen according to claim 5, wherein the memory tags are RFID tags.