Active transmission architecture without battery and application

• US 20090195357A1
• Filed: 03/27/2008
• Published: 08/06/2009
• Est. Priority Date: 02/04/2008
• Status: Abandoned Application

• Current Assignee: FAVEPC, Inc.
• Original Assignee: FAVEPC, Inc.
• Inventors: Tsai, Chun-Liang, Chang, Chang-Shao
• Application Number:
  US12/078,072
• Publication Number:
  US 20090195357A1
• Time in Patent Office: Days
• US Class Current: 340/10.1
• CPC Class Codes: G06K 19/0701 at least one of the integrated circuit chips comprising an arrangement for power management
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs

Abstract

An active transmission architecture without battery and the application are proposed, which make use of an analog front-end circuit to convert a received carrier into a dc signal for providing power for the active transmission architecture without battery, and therefore actively produces a replying signal with the same or different frequencies from the carrier. It is not necessary to add an extra power circuit, hence accomplishing the advantage of no battery. The proposed active transmission architecture without battery can apply to RFID systems or be used in applications that require transmitter and receiver modules.

Claims

1. An active transmission architecture without battery powered by an analog front-end circuit through the conversion of a carrier that is received by said analog front-end circuit.

2. The active transmission architecture without battery as claimed in claim 1, wherein said active transmitter includes a carrier generator.

3. The active transmission architecture without battery as claimed in claim 1, wherein said analog front-end circuit includes a rectifier used to convert said received carrier into a dc signal.

4. The active transmission architecture without battery as claimed in claim 3, wherein said rectifier is further electrically connected to a pumping circuit for the pumping of said dc signal.

5. The active transmission architecture without battery as claimed in claim 1, wherein said active transmitter without battery can be applied in the tag of an RFID system.

6. The active transmission architecture without battery as claimed in claim 5, wherein said RFID system further comprises:

a digital circuit for receiving a signal of said analog front-end circuit and driving said active transmitter without battery to transmit a replying signal;

a first antenna for receiving said carrier and sending to said analog front-end circuit; and

a second antenna for transmitting said replying signal.

7. The active transmission architecture without battery as claimed in claim 6, wherein said RFID system further includes a memory electrically connected to said digital circuit.

8. The active transmission architecture without battery as claimed in claim 6, wherein the frequency of said carrier is different from that of said replying signal.

9. The active transmission architecture without battery as claimed in claim 6, wherein the frequency of said carrier is the same as that of said replying signal.

10. The active transmission architecture without battery as claimed in claim 6, wherein said active transmitter includes a carrier generator.

11. The active transmission architecture without battery as claimed in claim 10, wherein said carrier generator bases on said analog front-end circuit and said digital circuit to produce a carrier with a specific frequency.

12. A tag architecture of an RFID system making use of active transmitter without battery, said tag architecture comprising:

an analog front-end circuit; and

an active transmission architecture without battery powered by said analog front-end circuit through the conversion of a carrier that is received by said analog front-end circuit.

13. The tag architecture as claimed in claim 12, wherein said active transmitter includes a carrier generator.

14. The tag architecture as claimed in claim 12, wherein said analog front-end circuit includes a rectifier used to convert said received carrier into a dc signal.

15. The tag architecture as claimed in claim 14, wherein said rectifier is further electrically connected to a pumping circuit for the pumping of said dc signal.

16. The tag architecture as claimed in claim 12, wherein said tag architecture further comprises:

a first antenna for receiving said carrier and sending to said analog front-end circuit;

a digital circuit for receiving a signal of said analog front-end circuit and driving said active transmitter without battery to transmit a replying signal; and

a second antenna for transmitting said replying signal.

17. The tag architecture as claimed in claim 16, wherein said tag architecture further includes a memory electrically connected to said digital circuit.

18. The tag architecture as claimed in claim 16, wherein the frequency of said carrier is different from that of said replying signal.

19. The tag architecture as claimed in claim 16, wherein the frequency of said carrier is the same as that of said replying signal.

20. The tag architecture as claimed in claim 16, wherein said active transmitter includes a carrier generator.

21. The tag architecture as claimed in claim 20, wherein said carrier generator bases on said analog front-end circuit and said digital circuit to produce a carrier with a specific frequency.

22. The tag architecture as claimed in claim 16, wherein a reader corresponding to said tag architecture of an RFID system comprises:

a receiver;

a transmitter; and

an antenna for receiving a first RF carrier of a first band and sending to said receiver and transmitting a second RF carrier of a second band that is transmitted by said transmitter.

23. The tag architecture as claimed in claim 16, wherein a reader corresponding to said tag architecture of an RFID system comprises:

a receiver;

a transmitter;

a first antenna for receiving a first RF carrier of a first band and sending to said receiver; and

a second antenna for transmitting a second RF carrier of a second band that is transmitted by said transmitter.

24. The tag architecture as claimed in claim 22, wherein said first band and said second band are the same.

25. The tag architecture as claimed in claim 23, wherein said first band and said second band are the same.

26. The tag architecture as claimed in claim 22, wherein said first band and said second band are different.

27. The tag architecture as claimed in claim 23, wherein said first band and said second band are different.

28. A transmitter module making use of active transmitter without battery, said transmitter module comprising:

an analog front-end circuit; and

an active transmitter without battery powered by said analog front-end circuit through the conversion of a carrier that is received by said analog front-end circuit.

29. The transmitter module as claimed in claim 28, wherein said active transmitter without battery includes a carrier generator.

30. The transmitter module as claimed in claim 28, wherein said analog front-end circuit includes a rectifier used to convert said received carrier into a dc signal.

31. The transmitter module as claimed in claim 30, wherein said rectifier is further electrically connected to a pumping circuit for the pumping of said dc signal.

32. The transmitter module as claimed in claim 28, wherein said transmitter module further comprises:

a first antenna for receiving said carrier and sending to said analog front-end circuit;

a digital circuit for receiving a signal of said analog front-end circuit and driving said active transmitter without battery to transmit a replying signal; and

a second antenna for transmitting said replying signal.

33. The transmitter module as claimed in claim 32, wherein said transmitter module further includes a memory electrically connected to said digital circuit.

34. The transmitter module as claimed in claim 32, wherein the frequency of said carrier is different from that of said replying signal.

35. The transmitter module as claimed in claim 32, wherein the frequency of said carrier is the same as that of said replying signal.

36. The transmitter module as claimed in claim 32, wherein said active transmitter includes a carrier generator.

37. The transmitter module as claimed in claim 36, wherein said carrier generator bases on said analog front-end circuit and said digital circuit to produce a carrier with a specific frequency.

38. The transmitter module as claimed in claim 28, wherein said transmitter module further comprises a receiver module for receiving a signal of said transmitter module, and said receiver module comprises:

a receiver;

a transmitter; and

an antenna for receiving a first RF carrier of a first band and sending to said receiver and transmitting a second RF carrier of a second band that is transmitted by said transmitter.

39. The transmitter module as claimed in claim 28, wherein said transmitter module further comprises a receiver module for receiving a signal of said transmitter module, and said receiver module comprises:

a receiver;

a transmitter;

a first antenna fore receiving a first RF carrier of a first band and sending to said receiver; and

a second antenna for transmitting a second RF carrier of a second band that is transmitted by said transmitter.

40. The transmitter module as claimed in claim 38, wherein said first band and said second band are the same.

41. The transmitter module as claimed in claim 39, wherein said first band and said second band are the same.

42. The transmitter module as claimed in claim 38, wherein said first band and said second band are different.

43. The transmitter module as claimed in claim 39, wherein said first band and said second band are different.