Radio frequency identification (RFID) tag

• US 8,308,073 B2
• Filed: 06/08/2011
• Issued: 11/13/2012
• Est. Priority Date: 06/15/2010
• Status: Active Grant

• Current Assignee: Convergence Systems Limited
• Original Assignee: Convergence Systems Limited
• Inventors: Lai, Kin Yue Albert, Garrett, Jerry, Chan, Yi Wah
• Primary Examiner(s): HESS, DANIEL A
• Application Number:
  US13/155,906
• Publication Number:
  US 20110303751A1
• Time in Patent Office: 524 Days
• Field of Search: 235/492, 700/224
• US Class Current: 235/492
• CPC Class Codes: G06K 19/027 the material being suitable for use as a textile, e.g. woven-based RFID-like labels designed for attachment to laundry items markings attached to laundry items in general D06F93/00
• CPC Class Codes: G06K 19/0701 at least one of the integrated circuit chips comprising an arrangement for power management
• CPC Class Codes: G06K 19/07758 arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 1/273 Adaptation for carrying or wearing by persons or animals
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407
• CPC Class Codes: Y10T 29/49 Method of mechanical manufacture

Abstract

A radio frequency identification (RFID) tag is disclosed as including an integrated circuit and at least one antenna connected with the integrated circuit, wherein the antenna is formed of an at least partly metalized thread.

Claims

1. A radio frequency identification (RFID) tag including an integrated circuit and at least one antenna connected with said integrated circuit, wherein said at least one antenna is formed of an at least partly metalized thread, wherein said integrated circuit is a flip chip integrated circuit mounted on a piece of FR4 printed circuit board with a plurality of metalized holes, wherein said at least one antenna is connected with at least one of said metalized holes.

2. The RFID tag according to claim 1 wherein said RFID tag is a passive RFID tag.

3. The RFID tag according to claim 1 wherein said flip chip integrated circuit is mounted on a piece of plastic inlay or on a piece of cloth.

4. The RFID tag according to claim 1 wherein two pairs of at least partly metalized thread antennas are connected to said flip chip integrated circuit.

5. The RFID tag according to claim 1 wherein said antenna is a loop style antenna.

6. The RFID tag according to claim 1 wherein said RFID tag is electrically connected with and powered by a battery.

7. A method of forming a tamper-destruct seal for an object, said method including providing at least one radio frequency identification (RFID) tag, wherein said RFID tag includes an integrated circuit and at least one antenna connected with said integrated circuit, wherein said at least one antenna is formed of an at least partly metalized thread, and associating said thread with said object, wherein said object is a document and said thread of said RFID tag is positioned through at least one hole of said document.

8. A radio frequency identification (RFID) tag including an integrated circuit and at least one antenna connected with said integrated circuit, wherein said at least one antenna is formed of an at least partly metalized thread, wherein said RFID tag includes a plurality of at least partially metalized threads, wherein at least one of said plurality of threads is a deactivator thread of a distinguishable colour relative to the other threads, said distinguishable colour providing a visual guide for identifying the deactivator thread, and wherein operation of said RFID tag is adapted to be permanently terminated upon cutting of said deactivator thread.