Expanded compatibility RFID tags

• US 7,755,486 B2
• Filed: 09/26/2006
• Issued: 07/13/2010
• Est. Priority Date: 05/06/2004
• Status: Active Grant

• Current Assignee: Savi Technology Incorporated
• Original Assignee: Savi Technology Incorporated
• Inventors: Zhu, Liping Julia, Farrell, Steven J., Evans, Allan Michael, Ahn, Don
• Primary Examiner(s): Lieu, Julie
• Application Number:
  US11/535,482
• Publication Number:
  US 20070085688A1
• Time in Patent Office: 1,386 Days
• Field of Search: None
• US Class Current: 340/572.1
• CPC Class Codes: G06K 17/0029 the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
• CPC Class Codes: G06Q 10/08 Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: G08B 13/2462 Asset location systems combined with EAS inventory, tracking, logistic G06Q10/00; entrance control systems G07C9/00
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

Systems and methods for providing expanded compatibility in identification tags such as RFID (Radio Frequency Identification) devices. Integrated devices can be equipped with various combinations of passive and active tags configured for compatibility with passive and active readers, respectively. Additionally, the integrated devices can be equipped with various combinations of passive and active tag readers for compatibility with passive and active tags, respectively. A first combination comprises an active tag and a passive tag reader for collecting information over a passive channel, and sending the information over an active channel. A second combination comprises an active tag and a passive tag receiver/transceiver for communication over both active and passive channels. A third combination comprises an active tag and an active tag reader for collecting information over an active channel, and sending information over an active channel.

Claims

1. An integrated device for tracking a container, the device comprising:

a passive tag reader configured to receive responses from at least one of a plurality of passive tags in response to interrogations received at the one or more passive tags from an external tag reader;

an active tag, coupled in communication with the passive tag reader, the active tag configured to access information related to the responses; and

a controller, coupled in communication with the active tag and the passive tag reader, the controller configured to generate a relative hierarchy amongst the the plurality of passive tags from the information.

2. The device of claim 1, further comprising:

a controller, coupled in communication with the active tag and the passive tag reader, the controller configured to process the information to generate a manifest of other containers associated with the container.

3. The device of claim 1, wherein the passive tag reader is a RFID (Radio Frequency Identification) devices.

4. The device of claim 1, further comprising:

a memory device, coupled to both the passive tag reader and the active tag, the memory device configured to store the information received by the passive tag reader.

5. The device of claim 1, wherein the active tag comprises a transceiver configured to operate at least one of 433 MHz and 2.4 GHz.

6. The device of claim 1, wherein the passive tag reader comprises a transceiver configured to operate within a range of 860 MHz to 960 MHz or at 13.56 MHz.

7. The device of claim 1, wherein the active tag is further configured to send the information to a device external to the container.

8. The device of claim 1, wherein the active tag and the passive tag reader communicate using RFID (radio frequency identification).

9. The device of claim 1, wherein the passive tag reader is configured to wake the active tag responsive to receiving communications.

10. The device of claim 1, wherein the active tag and the passive tag reader are both integrated onto a single substrate of a semiconductor.

11. An integrated device comprising:

a memory device to store data;

an active tag, coupled in communication with the memory device, the active tag configured to communicate a portion of the stored data responsive to an interrogation; and

an passive tag, coupled in communication with the memory device, the passive tag configured to communicate a portion of the stored data responsive to an interrogation as a result of a failure in the active tag.

12. The device of claim 11, wherein the integrated device further comprises:

a controller, coupled in communication with the active tag and the passive tag, the controller configured to detect the failure in the active tag, and responsive to the failure, to route communications through the passive tag.

13. An integrated device for tracking a container, the device comprising:

a passive communication detector to detect passive communication activity from at least one of a plurality of passive tags;

a passive receiver, coupled to the passive communication detector, the passive receiver configured to receive data from the passive communication activity;

an active tag, coupled to the passive receiver, the active tag configured to store the data; and

a controller, coupled in communication with the active tag and the passive receiver, the controller configured to generate a relative hierarchy with respect to the the plurality of passive tags from the data.

14. The device of claim 13, wherein the passive communication detector comprises a passive tag.

15. In an integrated device, a method for tracking a container, the method comprising the steps of:

receiving responses from at least one of a plurality of passive tags in response to interrogations received at the one or more passive tags from an external tag reader;

providing access to information related to the responses to an active tag; and

generating a relative hierarchy with respect to the the plurality of passive tags from the information.

16. The method of claim 15, further comprising:

generating a manifest of other containers associated with the container from the information.

17. The method of claim 15, wherein receiving responses occur over an RFID (Radio Frequency Identification) channel.

18. The method of claim 15, wherein the passive tag further comprises a transmitter, and further comprising:

detecting a failure in the active tag, and responsive to the failure, communicating with the passive tag reader.

19. The method of claim 15, further comprising:

storing the information for access by both an passive tag reader and the active tag.

20. The method of claim 15, wherein the active tag comprises a transceiver configured to operate at at least one of 433 MHz and 2.4 GHz.

21. The method of claim 15, wherein the passive tag reader comprises a transceiver configured to operate within a range of 860 MHz to 960 MHz or at 13.56 MHz.

22. The method of claim 15, wherein the active tag sends the information to a device external to the container.

23. The method of claim 15, wherein the active tag and the passive tag reader communicate using RFID (radio frequency identification).

24. The method of claim 15, wherein the passive tag reader is configured to wake the active tag responsive to receiving communications.

25. The method of claim 15, wherein the active tag and the passive tag reader are both integrated onto a single substrate of a semiconductor.

26. In an integrated device, a method for tracking a container, the method comprising:

receiving data from an active communication channel;

storing the data in a memory device;

communicating a portion of the stored data through an active tag on the active communication channel responsive to an interrogation; and

communicating a portion of the stored data on a passive communication channel responsive to an interrogation as a result of a failure in the active tag.

27. In an integrated device, a method for tracking a container, the method comprising:

detecting passive communication activity;

activating a receiver to receive data from the passive communication activity;

activating an active tag to store the received data; and

generating from the data a relative hierarchy with respect to one or more passive tags associated with the passive communication activity.