Reader control system

• US 8,698,604 B2
• Filed: 04/25/2006
• Issued: 04/15/2014
• 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): Bugg, George
• Assistant Examiner(s): Afrifa-Kyei, Anthony D
• Application Number:
  US11/912,632
• Publication Number:
  US 20090219143A1
• Time in Patent Office: 2,912 Days
• Field of Search: 340/10.4
• US Class Current: 340/10.4
• 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 of responding to a request from a mobile processor, the method being performed by a reading device and comprising:

receiving, from the mobile processor, a command for a specific operation, the command including a code value indicating the specific operation to be processed by the reading device;

determining whether or not the specific operation is performed and producing a determination result;

performing, according to the determination result, a generating operation of a response message, the response message including a code field and a payload field; and

transmitting, to the mobile processor, the generated response message,

wherein the generating operation includes a first generating operation when the specific operation is successful and a second generating operation when the specific operation has failed,

wherein the first generating operation comprises inserting the code value included in the command into the code field and inserting a first type of payload of the received command into the payload field, and

wherein the second generating operation comprises inserting a second predetermined fixed value indicating a failure into the code field, and inserting a second type of payload different than the first type of payload indicating the failure into the payload field.

2. The method of claim 1, further comprising:

storing the result value.

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

7. The method of claim 1, wherein the first generating operation further comprises inserting a fixed value indicating a success into the payload field.

8. The method of claim 7, wherein the first predetermined fixed value is inserted into the payload field when no separate result value exists when the specific operation is performed successfully.

9. The method of claim 7, wherein the first predetermined fixed value is 0x00 and the second predetermined fixed value is 0xFF.

4. A reading device configured to response to a request from an external module, the reading device comprising:

an interface unit configured to transmit/receive data to/from the external module; and

a control unit configured to;

receive, from the external module via the interface unit, a command for a specific operation, the command including a code value indicating the specific operation to be processed by the reading device,

determine whether or not the specific operation is performed and produce a determination result,

perform, according to the determination result, a generating operation of a response message, the response message including a code field and a payload field, and

transmit, to the external module via the interface unit, the generated response message,

wherein the generating operation includes a first generating operation when the specific operation is successful and a second generating operation when the specific operation is failed,

wherein the first generating operation comprises inserting the code value included in the command into the code field and inserting a first type of payload of the received command into the payload field, and

wherein the second generating operation comprises inserting a second predetermined fixed value indicating a failure into the code field, and inserting a second type of payload different than the first type of payload indicating the failure into the payload field.

5. The reading device of claim 4, wherein the control unit further stores the result value.

6. The reading device of claim 4, wherein the command and the generated response message operate in pairs.

10. The reading device of claim 4, wherein the first generating operation further comprises inserting a first predetermined fixed value indicating a success into the payload field.

11. The reading device of claim 10, wherein the first predetermined fixed value is inserted into the payload filed when no separate result value exists when the specific operation is performed successfully.

12. The reading device of claim 10, wherein the first predetermined fixed value is 0x00 and the second predetermined fixed value is 0xFF.