Non-authentic article discrimination system, and method for discriminating non-authentic article

• US 7,202,787 B2
• Filed: 09/29/2004
• Issued: 04/10/2007
• Est. Priority Date: 09/29/2003
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Nakazawa, Tsutomu
• Primary Examiner(s): Crosland; Donnie L.
• Application Number:
  US10/952,572
• Publication Number:
  US 20050151617A1
• Time in Patent Office: 923 Days
• Field of Search: 340/572.1, 340/10.6
• US Class Current: 340/572.1
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: G06K 19/07703 the interface being visual

Abstract

A non-authentic article discrimination system for discriminating whether an article to which an IC tag is attached is a non-authentic article includes an IC tag and a base device. The IC tag includes a first antenna portion for receiving a radio wave, a power generation circuit for generating electric power from the radio wave received by the first antenna portion, a first storing portion for storing information regarding the article, and a radio wave output circuit for outputting a radio wave including the information stored in the first storing portion via the first antenna portion. The base device includes a second antenna portion for receiving the radio wave transmitted from the first antenna portion and transmitting a radio wave generated in the base device toward the IC tag, a second storing portion for storing information regarding the article, the information stored in the second storing portion being the same as the information stored in the first storing portion, a discriminating portion for discriminating whether the first information included in the radio wave received by the second antenna portion coincides with the information stored in the second storing portion, and a displaying portion for displaying a discrimination result of the discrimination portion.

Claims

1. A non-authentic article discrimination system for discriminating whether an article to which an IC tag is attached is a non-authentic article, the non-authentic article discrimination system comprising:

the IC tag; and

a base device;

wherein the IC tag includes;

a first antenna portion for receiving a radio wave;

a power generation circuit for generating electric power from the radio wave received by the first antenna portion;

a first storing portion for storing a first code and a second compute code,

a receiving circuit to which the electric power is supplied from the power generation circuit, and which receives the radio wave from the first antenna portion;

a discrimination circuit which performs a first process for discriminating whether the first code stored in the first storing portion coincides with a second code received by the receiving circuit, and a second process for discriminating whether the second compute code stored in the first storing portion coincides with second computed result information received by the receiving circuit;

a first computing circuit in which, depending on a discrimination result between the first code and the second code made by the discrimination circuit, when the first code coincides with the second code, first computed result information is generated by computing the first code;

an output circuit for outputting the first computed result information generated by the first computing circuit; and

a light-emitting diode in which, depending on a discrimination result between the second computed result information and the second compute code made by the discrimination circuit, when the second computed result information coincides with the second compute code, emission of light is performed, and

the base device includes;

a radio wave supplying circuit for supplying the radio wave to the IC tag;

a second storing portion for storing the second code;

a second receiving circuit for receiving the first computed result information outputted by the output circuit of the IC tag;

a second storing portion for storing the second code;

a second receiving circuit for receiving the first computed result information outputted by the output circuit of the IC tag;

a second computing circuit for generating the second computed result information by computing the first computed result information received by the second receiving circuit; and

a second output circuit for performing at third process in which the second code is outputted to the IC tag, and a fourth process in which the second computed result information is outputted to the IC tag.

2. A non-authentic article discrimination system for discriminating whether an article to which an IC tag is attached is a non-authentic article, the non-authentic article discrimination system, comprising:

the IC tag; and

a base device;

wherein the IC tag includes;

a first antenna portion for receiving a radio wave;

a power generation circuit for generating electric power from the radio wave received by the first antenna portion;

a first storing portion for storing a first code and a third code,

a receiving circuit to which the electric power is supplied from the power generation circuit, and which receives the radio wave from the first antenna portion;

a discrimination circuit for discriminating whether the first code stored in the first storing portion coincides with a second code received by the receiving circuit; and

an output circuit, in which, depending on a discrimination result between the first code and the second code made by the discrimination circuit, when the first code coincides with the second code, the third code is outputted; and

the base device includes;

a radio wave supplying circuit for supplying the radio wave to the IC tag;

a second storing portion for storing a second code and a fourth code;

a second receiving circuit for receiving the third code outputted by the output circuit of the IC tag;

a displaying portion for displaying a discrimination result between the third code received by the second receiving circuit and the fourth code;

a second output circuit for outputting the second code.

3. An IC tag to be used in combination with a base device in a non-authentic article discrimination system for discriminating whether an article to which an IC tag is attached is a non-authentic article, the IC tag, comprising:

an antenna portion for receiving a radio wave;

a power generation circuit for generating electric power from the radio wave received by the antenna portion;

a storing portion for storing a first code and a second compute code,

a receiving circuit to which the electric power is supplied from the power generation circuit, and which receives the radio wave from the first antenna portion;

a discrimination circuit which performs a first process for discriminating whether the first code stored in the storing portion coincides with a second code received by the receiving circuit, and a second process for discriminating whether the second compute code stored in the storing portion coincides with second computed result information received by the receiving circuit;

a first computing circuit in which, depending on a discrimination result between the first code and the second code made by the discrimination circuit, when the first code coincides with the second code, first computed result information is generated by computing the first code;

an output circuit for outputting the first computed result information generated by the first computing circuit to the base device; and

a light-emitting diode in which, depending on a discrimination result between the second computed result information which is obtained by computing the first computed result information in the case device, and is received by the receiving circuit, and the second compute code by the discrimination circuit, when the second computed result information coincides with the second compute code, emission of light is performed.

4. A method for discriminating whether an article to which an IC tag is attached is a non-authentic article using a non-authentic article discrimination system having an IC tag and a base device, the method, comprising:

a step in which the base device outputs the radio wave;

a step in which the IC tag receives the radio wave outputted by the base device, and generates electric power;

a step in which the base device outputs a second code;

a step in which the IC tag receives the second code outputted by the base device, and discriminates whether a first code prepared in advance coincides with the second code outputted by the base device;

a step in which, depending on a discrimination result between the first code and the second code, when the first code coincides with the second code, the IC tag generates first computed result information by computing the first code, and outputs the first computed result information to the base device;

a step in which the base device receives the first computed result information, generates second computed result information by computing the first computed result information, and outputs the second computed result information to the IC tag; and

a step in which the IC tag receives the second computed result information, and discriminates whether the second computed result information coincides with a second compute code prepared in advance.

5. The method for discriminating whether an article to which an IC tag is attached is a non-authentic article according to claim 4, wherein, depending on a discrimination result between the second computed result information and the second compute code, when the second computed result information coincides with the second compute code, a light-emitting diode which is provided at the IC tag is emitted.