Reader control system

• US 8,378,790 B2
• Filed: 11/24/2010
• Issued: 02/19/2013
• Est. Priority Date: 04/25/2005
• Status: Expired due to Fees

• 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): Mehmood, Jennifer
• Assistant Examiner(s): ALAM, MIRZA F
• Application Number:
  US12/954,503
• Publication Number:
  US 20110156882A1
• Time in Patent Office: 818 Days
• Field of Search: 340/10.2, 340/10.3, 340/10.32, 340/10.1, 340/572.1, 340/572.2, 340/572.4, 340/10.41, 340/10.42, 340/10.51, 340/10.52, 340/539.13, 340/870.11, 340/825.73, 340/7.21, 340/825.69, 340/825.72, 340/572, 340/505, 340/825.54, 340/825.34, 340/825.31, 340/825.49, 340/572.7, 370/314, 370/442, 370/310, 370/310.2, 370317-319, 370/324, 370/328, 370351-356, 370/389, 370/395.52, 370/428, 370/521, 455/45, 455/106, 455/403, 455/456.5, 455/426.1, 455/426.2, 455/562.1, 455/561, 709/227, 709/228, 709/208
• US Class Current: 340/10.5
• 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 locking a tag device, the method performed by a mobile processor and comprising:

transmitting, to a reading device, a reading command, the reading command instructing the reading device to inform a unique identifier of the tag device, the unique identifier identifying the tag device uniquely and the unique identifier having a variable length,

wherein the reading device performs a reading operation in response to the reading command,

wherein a reading response is generated according to a result of the reading operation,

wherein, when the reading operation is successfully performed, the reading response includes a total length field, a first payload field, and a second payload field,

wherein the total length field specifies a total length of the first payload field and the second payload field, the first payload field having a fixed length, and the second payload field having a variable length,

wherein the first payload field comprises a protocol control (PC) section, and

wherein the unique identifier is inserted into the second payload field;

receiving, from the reading device, the reading response including the unique identifier and the PC section;

obtaining a unique identifier length by subtracting the fixed length from the total length, the unique identifier length specifying a length of the unique identifier; and

transmitting, to the reading device, a locking command for controlling a lock function for preventing a change or an erase of content included in the tag device,

wherein the locking command comprises the unique identifier, the unique identifier length, an access password, and lock data for controlling the lock function,

wherein the reading device detects the tag device to be locked with the received unique identifier,

wherein the reading device accesses the detected tag device with the received access password, and

wherein the reading device locks the accessed tag device in order to prevent a change of content included in the tag device.

2. The method of claim 1, wherein the reading command and the locking command include a code discerning a type of a command.

3. The method of claim 2, further receiving a locking response in response to the locking command, the locking response including the code included in the locking command, when the locking command is performed successfully.

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

5. The method of claim 2, wherein, when the reading operation is successfully performed, the reading response includes a code the same as the code included in the reading command.

6. The method of claim 1, wherein the reading device stores a result code indicating a reason of failure when the locking command is failed.

7. The method of claim 6, wherein the result code includes a code informing that no tag device is detected, when the detecting is failed.

8. A mobile terminal for locking a tag device, comprising:

an interface unit configured to transmit/receive data to/from a reading device;

a processor configured to;

transmit, to the reading device via the interface unit, a reading command, the reading command instructing the reading device to inform a unique identifier of the tag device, the unique identifier identifying the tag device uniquely and the unique identifier having a variable length,

wherein the reading device performs a reading operation in response to the reading command,

wherein a reading response is generated according to a result of the reading operation,

wherein, when the reading operation is successfully performed, the reading response includes a total length field, a first payload field, and a second payload field,

wherein the total length field specifies a total length of the first payload field and the second payload field, the first payload field having a fixed length, and the second payload field having a variable length,

wherein the first payload field comprises a protocol control(PC) section, and

wherein the unique identifier is inserted into the second payload field,

receive, from the reading device via the interface unit, the reading response including the unique identifier and the PC section,

obtain a unique identifier length by subtracting the fixed length from the total length, the unique identifier length specifying a length of the unique identifier, and

transmit, to the reading device via the interface unit, a locking command for controlling a lock function for preventing a change or an erase of content included in the tag device,

wherein the locking command comprises the unique identifier, the unique identifier length, an access password, and lock data for controlling the lock function,

wherein the reading device detects the tag device to be locked with the received unique identifier,

wherein the reading device accesses the detected tag device with the received access password, and

wherein the reading device locks the accessed tag device in order to prevent a change of content included in the tag device.

9. The mobile terminal of claim 8, wherein the reading command and the locking command include a code discerning a type of a command.

10. The mobile terminal of claim 9, wherein the processor further receives a locking response in response to the locking command, the locking response including the code included in the locking command, when the locking command is performed successfully.

11. The mobile terminal of claim 10, wherein the reading command and the reading response operate in pairs and the locking command and the locking response operate in pairs.

12. The mobile terminal of claim 9, wherein, when the reading operation is successfully performed, the reading response includes a code the same as the code included in the reading command.

13. The mobile terminal of claim 8, wherein the reading device stores a result code indicating a reason of failure when the locking command is failed.

14. The mobile terminal of claim 13, wherein the result code includes a code informing that no tag device is detected, when the detecting is failed.