Tag-information management apparatus and IC tag

• US 20060255919A1
• Filed: 08/30/2005
• Published: 11/16/2006
• Est. Priority Date: 05/10/2005
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Nakai, Akira, Doi, Masashi
• Granted Patent: US 7,978,053 B2
• Time in Patent Office: Days
• US Class Current: 340/10.510
• CPC Class Codes: G01S 13/74 Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
• CPC Class Codes: G01S 5/18 using ultrasonic, sonic, or infrasonic waves

Abstract

An apparatus for managing information about an integrated circuit tag includes an acquiring unit and a storing unit. The acquiring unit acquires communication range information that is information about a range in which the integrated circuit tag communicates with an antenna of a reader/writer. The integrated circuit tag includes a transmitting device that transmits position identification information for identifying a position of the integrated circuit tag. The storing unit stores the communication range information in association with antenna identification information and integrated-circuit-tag identification information.

Claims

1. An apparatus for managing information about an integrated circuit tag, comprising:

an acquiring unit that acquires communication range information that is information about a range in which the integrated circuit tag communicates with an antenna of a reader/writer, wherein the integrated circuit tag includes a transmitting device that transmits position identification information for identifying a position of the integrated circuit tag; and

a storing unit that stores the communication range information in association with antenna identification information for identifying the antenna, and integrated-circuit-tag identification information for identifying the integrated circuit tag.

2. The apparatus according to claim 1, further comprising:

a writing unit that writes the communication range information into the integrated circuit tag.

3. The apparatus according to claim 1, further comprising:

a comparing unit that compares the communication range information acquired with the communication range information stored.

4. An integrated circuit tag that stores information received from a reader/writer, comprising:

a transmitting unit that transmits position identification information for identifying a position of the integrated circuit tag;

an acquiring unit that acquires communication range information that is information about a range in which the integrated circuit tag communicates with an antenna of the reader/writer, wherein the communication range information is identified by the position identification information; and

a storing unit that stores the communication range information.

5. The integrated circuit tag according to claim 4, wherein

the storing unit stores the communication range information in association with antenna identification information for identifying the antenna.

6. A method of managing information about an integrated circuit tag, comprising:

acquiring communication range information that is information about a range in which the integrated circuit tag communicates with an antenna of a reader/writer, wherein the integrated circuit tag includes a transmitting device that transmits position identification information for identifying a position of the integrated circuit tag; and

storing the communication range information in association with antenna identification information for identifying the antenna, and integrated-circuit-tag identification information for identifying the integrated circuit tag.

7. The method according to claim 6, further comprising:

writing the communication range information into the integrated circuit tag.

8. The method according to claim 6, further comprising:

comparing the communication range information acquired with the communication range information stored.