Reader control system

• US 8,604,913 B2
• Filed: 11/24/2010
• Issued: 12/10/2013
• Est. Priority Date: 04/25/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Ryoo, Seung Hyup, Kim, Jin Tae, Min, Sang Cheol, Kim, Hee Seung, Park, Jae Joon, Lee, Dong Hyun, Kim, Yong Sam
• Primary Examiner(s): Nguyen, Nam V
• Application Number:
  US12/954,446
• Publication Number:
  US 20110068907A1
• Time in Patent Office: 1,112 Days
• Field of Search: 340 101- 105, 3405721-5729, 370/314, 370/445, 708/250, 708/255, 455/41.2, 455/41.1, 455/417, 455/567
• US Class Current: 340/10.51
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10297 arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092 cryptographic protocols H04L9/00; network security protocols H04L63/00; real-time communication protocols in data switching networks H04L65/00; network protocols for data switching network services H04L67/00
• CPC Class Codes: G06K 7/10366 the interrogation device being adapted for miscellaneous applications
• CPC Class Codes: G06Q 20/352 Contactless payments by cards
• CPC Class Codes: G07F 7/0893 the card reader reading the card in a contactless manner
• CPC Class Codes: H04L 69/03 Protocol definition or specification protocol conformance testing H04L1/244
• CPC Class Codes: H04M 1/72409 by interfacing with external accessories hands-free H04M1/60
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04W 4/12 Messaging; Mailboxes; Announcements
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation

Abstract

An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.

Claims

1. A method for disabling a tag device, the method performed by a reading device and comprising:

receiving, from a mobile processor, a killing command for disabling the tag device,

wherein the killing command includes a first message type field, a first code field, a first payload length field and an first payload field, the first payload field including an argument and being represented by a first payload type,

wherein the argument comprises a unique identifier, a value specifying the length of the unique identifier, an access password and a kill password, the unique identifier indicating the tag device to be disabled;

obtaining the unique identifier based on the unique identifier length;

detecting the tag device to be disabled with the unique identifier;

accessing the detected tag device with the access password; and

disabling the accessed tag device with the kill password; and

transmitting, to the mobile processor, a killing response in response to the received killing command,

wherein the killing response includes a second message type field, a second code field, a second payload length field and a second payload field, the second payload field being represented by a second payload type, the second payload type having a different data field structure from the first payload type.

2. The method of claim 1, wherein the first code field of the killing command includes a code discerning a type of a command.

3. The method of claim 1, wherein the reading command and the reading response operate in pairs and the killing command and the killing response operate in pairs.

4. The method of claim 1, further storing a result code indicating a reason of failure when the killing command fails.

5. The method of claim 4, wherein the result code includes a code informing that no tag device is detected, when the detecting step fails.

6. A reading device for disabling a tag device, comprising:

a first interface unit configured to transmit/receive data to/from a mobile terminal;

a second interface unit configured to transmit/receive data to/from the tag device;

a processor configured to;

receive, from the mobile terminal via the first interface unit, a killing command for disabling the tag device,

wherein the killing command includes a first message type field, a first code field, a first payload length field and an first payload field, the first payload field including an argument and being represented by a first payload type,

wherein the argument comprises a unique identifier, a value specifying the length of the unique identifier, an access password and a kill password, the unique identifier indicating the tag device to be disabled,

obtain the unique identifier based on the unique identifier length,

detect the tag device to be disabled with the unique identifier,

access to the detected tag device, via the second interface unit, with the access password,

disable the accessed tag device with the kill password, and

transmit, to the mobile terminal, a killing response in response to the received killing command,

wherein the killing response includes a second message type field, a second code field, a second payload length field and a second payload field, the second payload field being represented by a second payload type, the second payload type having a different data field structure from the first payload type.

7. The reading device of claim 6, wherein the first code field of the killing command includes a code discerning a type of a command.

8. The reading device of claim 6, wherein the killing command and the killing response operate in pairs.

9. The reading device of claim 6, wherein the processor further stores a result code indicating a reason of failure when the killing command fails.

10. The reading device of claim 9, wherein the result code includes a code informing that no tag device is detected, when the detecting step fails.