Noncontact reader/writer, information communication system using the same, and management system using the same

• US 20040098270A1
• Filed: 12/18/2002
• Published: 05/20/2004
• Est. Priority Date: 11/20/2000
• Status: Active Grant

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Obayashi, Keichiro, Fujii, Nobuhiko, Kitajima, Yasuhiko
• Granted Patent: US 6,899,270 B2
• Time in Patent Office: Days
• US Class Current: 235/451
• 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 7/10039 interrogator driven, i.e. synchronous

Abstract

A noncontact reader/writer is disclosed which performs, at a high speed, a processing of communication, such as read or write, with a plurality of noncontact information carriers such as noncontact IC cards. A transmitting unit transmits signals, such as commands, to the respective kinds of noncontact information carriers. A memory stores information about at least one of the kinds of noncontact information carriers with which the noncontact reader/writer communicated. A control unit decides, based on the stored information, the priority of the kinds of noncontact information carries in the communication processing and performs a communication processing. The stored information includes the kinds of noncontact information carriers or the number of occurences of communication with the respective kinds of noncontact information carriers.

Claims

1. A noncontact reader/writer for plural kinds of noncontact information carriers comprising:

a transmitter for sending a signal to each of the plural kinds of noncontact information carriers;

a receiver for receiving a signal from said each of the plural kinds of noncontact information carriers;

a memory for storing information on a kind of at least one of the plural kinds of the noncontact information carriers with which the noncontact reader/writer has communicated; and

a controller for determining, based upon the information, a priority order in a communication processing on a kind of noncontact information carrier, among the plural kinds of noncontact information carriers, and for carrying out the communication processing.

2. The noncontact reader/writer of claim 1, further comprising:

a priority memory for storing a priority table for showing a priority order on the kind of the plural kinds of noncontact information carriers with which the noncontact reader/writer communicates,

wherein said memory includes a pointer memory to store a pointer value showing a specific priority order in the priority table, as the information; and

according to each kind of the plural kinds of noncontact information carriers with which the noncontact reader/writer has communicated, the controller determines the pointer value, and in next communication, the controller carries out communication processing, by determining the priority order in the communication processing based on the priority order shown by the pointer value.

3. The noncontact reader/writer of claim 2, wherein the priority memory is formed of a nonvolatile memory.

4. The noncontact reader/writer of claim 2, further comprising:

a communication enable/inhibit setting unit capable for setting, to enable or to inhibit a communication with respect to each kind of the noncontact information carriers.

5. The noncontact reader/writer of claim 1 through 4, wherein the noncontact reader/writer is powered by a battery.

6. The noncontact reader/writer of claim 1, wherein

the memory includes a communication times memory for storing a number of communication times with respect to each kind of the plural kinds of noncontact information carriers with which the noncontact reader/writer has communicated, as the information;

and

the controller, according to a content of the communication times memory, determines a communication priority order and carries out communication processing.

7. The noncontact reader/writer of claim 6, further comprising:

a communication priority storing memory for storing a priority order for communicating with each kind of the plural kinds of noncontact information carriers.

8. The noncontact reader/writer of claim 6 or 7, wherein the priority memory is formed of a nonvolatile memory.

9. The noncontact reader/writer of claim 8, wherein the nonvolatile memory stores an error check code.

10. The noncontact reader/writer of claim 9, further comprising:

a noticing unit for noticing an abnormality in the nonvolatile memory found by the error check code to an outside of said noncontact reader/writer.

11. The noncontact reader/writer of claim 6 or 7, further comprising:

a clearing unit for clearing data in the communication times memory.

12. The noncontact reader/writer of claim 6 or 7, further comprising:

a communication enable/inhibit setting unit capable of setting whether to enable or to inhibit communication with each kind of the plural kinds of noncontact information carriers.

13. The noncontact reader/writer of claim 6 or 7, wherein the noncontact reader/writer is powered by a battery.

14. A information communication system comprising:

a noncontact reader/writer for a plural kinds of noncontact information carriers comprising;

a transmitter for sending a signal to each of the plural kinds of noncontact information carriers;

a receiver for receiving a signal from said each of the plural kinds of noncontact information carriers;

a memory for storing information on a kind of at least one of the plural kinds the noncontact information carriers with which the noncontact reader/writer has communicated; and

a controller for determining, based upon the information, a priority order in a communication processing on a kind of noncontact information carrier, among the plural kinds of noncontact information carriers, and for carrying out the communication processing;

a communication terminal for sending information of the noncontact IC information carriers read by said noncontact reader/writer; and

a group of servers for communicating with the communication terminal, wherein the information read by the noncontact reader/writer is, according to the information read, sent to a specific server among the group of servers.

15. The information communication system of claim 14, wherein said noncontact reader/writer further comprising:

a priority memory for storing a priority table for showing a priority order on the kind of the plural kinds of noncontact information carriers with which the noncontact reader/writer communicates,

wherein said memory includes a pointer memory to store a pointer value showing a specific priority order in the priority table, as the information; and

according to each kind of the plural kinds of noncontact information carriers with which the noncontact reader/writer has communicated, the controller determines the pointer value, and in next communication, the controller carries out communication processing, by determining the priority order in the communication processing based on the priority order shown by the pointer value.

16. The information communication system of claim 14, wherein

the memory includes a communication times memory for storing a number of communication times with respect to each kind of the plural kinds of noncontact information carriers with which the noncontact reader/writer has communicated, as the information;

and

the controller, according to a content of the communication times memory, determines a communication priority order and carries out communication processing.

17. The information communication system of one of claim 14 through 16, wherein the noncontact reader/writer includes the communication terminal.

18. The information communication system of one of claim 14 through 17, wherein the information read in the noncontact reader/writer is, according to a kind of the noncontact information carriers included in the information read, sent to a specific server among the group of servers.

19. A management system comprising:

a noncontact reader/writer for plural kinds of noncontact information carriers comprising;

a transmitter for sending a signal to each of the plural kinds of noncontact information carriers;

a receiver for receiving a signal from each of the plural kinds of noncontact information carriers;

a memory for storing information on a kind of at least one of the plural kinds of the noncontact information carriers with which the noncontact reader/writer has communicated;

a controller for determining, based upon the information, a priority order in a communication processing on a kind of noncontact information carrier, among the plural kinds of noncontact information carriers, and for carrying out the communication processing; and

a conveying-way on which an article having at least one of the plural kinds of noncontact information carriers travel,

wherein the article is sorted based on a kind of the plural kinds of noncontact information carriers.

20. The management system of claim 19, wherein the noncontact reader/writer further comprising:

a priority memory for storing a priority table for showing a priority order on the kind of the plural kinds of noncontact information carriers with which the noncontact reader/writer communicates,

wherein said memory includes a pointer memory to store a pointer value showing a specific priority order in the priority table, as the information; and

according to each kind of the plural kinds of noncontact information carriers with which the noncontact reader/writer has communicated, the controller determines the pointer value, and in next communication, the controller carries out communication processing, by determining the priority order in the communication processing based on the priority order shown by the pointer value.

21. The management system of claim 19, wherein

the memory includes a communication times memory for storing a number of communication times with respect to each kind of the plural kinds of noncontact information carriers with which the noncontact reader/writer has communicated as the information, and

the controller, according to a content of the communication times memory, determines a communication priority order and carries out communication processing.

22. The management system of one of claim 19 through 21, wherein the management system stocks or places the article sorted.