Device and method for communicating at a distance and system using them

• US 6,442,403 B1
• Filed: 08/20/1999
• Issued: 08/27/2002
• Est. Priority Date: 08/31/1998
• Status: Expired due to Term

• Current Assignee: Canon Europa N.V. (Canon Inc.)
• Original Assignee: Canon Europa N.V. (Canon Inc.)
• Inventors: Becot, Sylvain, Gouache, Stéphane, Caillerie, Alain, Visa, Pierre, Delumeau, François
• Primary Examiner(s): Hunter, Daniel
• Assistant Examiner(s): LE, LANA N
• Application Number:
  US09/377,837
• Time in Patent Office: 1,103 Days
• Field of Search: 455/66, 455/504, 455/562, 455/41, 455/556, 455/88, 342/359, 343/763, 343/766, 358/1.15
• US Class Current: 455/575.1
• CPC Class Codes: H01Q 1/2266 disposed inside the computer

Abstract

The device (220) of the invention for communicating at a distance has a signal transmission/reception means (223, 224, 102) which has a moving part (102) and a reception device (102, 223, 224), said moving part modifying the electromagnetic environment of said reception device.

Preferentially, said moving part is an antenna (102).

In particular, said moving part can be fixed to a moving component of an item of office equipment (100) using data received by said communication device.

Claims

1. A data processing device cooperating with a digital apparatus which has a certain function independent of the data processing device, the digital apparatus comprising a moving component that moves relative to the digital apparatus and affects the certain function of the digital apparatus, said data processing device comprising:

communication means for communicating data in the form of electromagnetic signals, said communication means including a moving part arranged for modifying an electromagnetic environment of said communication means; and

means for attaching said moving part to the moving component.

2. A data processing device according to claim 1, wherein the moving part is an antenna.

3. A data processing device according to claim 1, wherein the moving part is a metallic reflector.

4. A data processing device according to any one of claims 1, to 3, wherein the digital apparatus is an item of office equipment.

5. A data processing device according to claim 4, wherein the moving component is an inertia flywheel incorporated in the item office equipment.

6. A data processing device according to claim 4, wherein the moving component is a print carriage incorporated in the item office equipment.

7. A data processing device according to claim 1, further comprising a frame duration determination means, adapted to yield a frame duration is less than or equal to a mean duration of periods of good communication.

8. A data processing device according to claim 1, further comprising a good communication cycle ratio determination means that determines a mean ratio of a period of good communication during a cycle to a duration of the cycle.

9. A data processing device according to claim 1, further comprising:

a means for determining a new cycle duration equal to or greater than a product of a former cycle duration and a ratio of a duration of a data frame used by said communication means to a duration of good communication; and

a means of controlling the duration of the cycle to make the cycle have the new cycle duration.

10. A data processing device according to claim 1, wherein the moving part is driven by a print carriage on an item of office equipment that uses data received by said communication device.

11. A data processing device according to claim 1, further comprising a means for determining a ratio of redundancy information associated with data to be communicated, the ratio being a function of a good communication cycle ratio.

12. A data processing device according to claim 1, further comprising a good communication determination means,

wherein when said good communication determination means determines that a communication is not good, the moving part is set in movement.

13. A data communication method comprising a step of setting in movement a moving component of a digital apparatus, the digital apparatus having a certain function independent of data communication, the moving component affecting the certain function of the digital apparatus and being attached to a moving part of a communication means for communicating data in the form of electromagnetic signals,

wherein the moving part modifies an electromagnetic environment of the communication means when the moving component is set in motion.

14. A data communication method according to claim 13, wherein the moving part is an antenna.

15. A data communication method according to any one of claims 13 or 14, wherein, during said setting step, the moving part is fixed to a moving member of an item of office equipment that uses data received by the communication device.

16. A data communication method according to any one of claims 13 or 14, wherein during said setting step, the moving part effects cyclic movement in such a way that a change to the electromagnetic environment caused by the cyclic movement has a same cycle period as the movement of the moving part.

17. A data communication method according to claim 13, further comprising a step of determining a mean duration of periods of good communication.

18. A data communication method according to claim 13, further comprising a frame duration determination step, wherein a frame duration is less than or equal to a mean duration of periods of good communication.

19. A data communication method according to any one of claims 13 or 14, further comprising a good communication cycle ratio determination step during which a mean ratio of a duration of good communication during a cycle to a duration of the cycle is determined.

20. A data communication method according to claim 13, further comprising:

a step of determining a new cycle duration equal to or greater than a product of a former cycle duration and a ratio of the duration of a data frame used by the communication means to a duration of good communication, and

a step of controlling a duration of a cycle during which the cycle is made to have the new cycle duration.

21. A data communication method according to any one of claims 13 or 14, further comprising a step of determining a ratio of redundancy information associated with data to be communicated, the ratio being a function of a good communication cycle ratio.

22. A data communication method according to any one of claims 13 or 14, further comprising a good communication determination step, wherein when said good communication determination step determines that a communication is not good, said setting step is performed.

23. A network implementing the data communication method according to any one of claims 13 or 14.

24. A computer implementing the data communication method according to any one of claims 13 or 14.

25. A copier implementing the data communication method according to any one of claims 13 or 14.

26. A facsimile implementing the data communication method according to any one of claims 13 or 14.

27. A printer implementing the data communication method according to any one of claims 13 or 14.

28. A scanner implementing the data communication method according to any one of claims 13 or 14.

29. A camera implementing the data communication method according to any one of claims 13 or 14.