COMMUNICATIONS SYSTEM AND COMMUNICATIONS APPARATUS

• US 20140055238A1
• Filed: 11/04/2013
• Published: 02/27/2014
• Est. Priority Date: 05/23/2007
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Fukuda, Kunio
• Granted Patent: US 9,792,743 B2
• Time in Patent Office: Days
• US Class Current: 340/5.65
• 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 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 7/10198 setting parameters for the interrogator, e.g. programming parameters and operating modes
• CPC Class Codes: G07C 9/28 the pass enabling tracking or indicating presence
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04B 5/0056 for use in interrogation, identification or read/write systems record carriers G06K7/00, G06K19/00; for railways B61L3/12
• CPC Class Codes: H04B 5/0062 in RFID [Radio Frequency Identification] Systems
• CPC Class Codes: H04B 5/77 for interrogation

Abstract

A communications system configured to execute data transmission between a transponder having no radio wave generating source thereof and a reader/writer is provided. The communications system includes, a service permission level notifier configured to tell a service permission level for associated with a received signal level for permitting service acceptance from the reader/writer to the transponder, and an access controller configured to determine in the transponder whether the received signal level from the reader/writer is at the notified service permission level to determine accessibility to the transponder from the reader/writer.

Claims

1. A first apparatus comprising:

a communication circuit which is configured to communicate with a second apparatus; and

a controller which is configured to control the first apparatus to;

receive, from the second apparatus, a beacon frame including service information; and

transmit, to the second apparatus, a service entry associated with the service information.

2. The first apparatus of claim 1, wherein the service entry is transmitted to the second apparatus for activating the service.

3. The first apparatus of claim 1, wherein the beacon frame further includes service permission information.

4. The first apparatus of claim 3, wherein the service permission information indicates a signal level for permitting service activation.

5. The first apparatus of claim 4, wherein the controller is further configured to control the first apparatus to determine whether the service entry should be transmitted based on a received signal strength and the service permission information.

6. The first apparatus of claim 5, wherein the service entry is a connection request to establish a connection with the second apparatus.

7. The first apparatus of claim 6, wherein the controller is further configured to control transmitting a communication parameter with the connection request.

8. The first apparatus of claim 1, wherein the controller determines whether the service entry should be transmitted.

9. A second apparatus comprising:

a communication circuit which is configured to communicate with a first apparatus; and

a controller which is configured to control the second apparatus to;

transmit, to the first apparatus, a beacon frame including service information at a predetermined time interval; and

receive, from the first apparatus, a service entry associated with the service information.

10. The second apparatus of claim 9, wherein the controller activates the service when the second apparatus receives the service entry.

11. The second apparatus of claim 9, wherein the service entry is transmitted from the first apparatus.

12. The second apparatus of claim 9, wherein the beacon frame further includes service permission information which is used for a determination whether the service entry should be transmitted.

13. The second apparatus of claim 12, wherein the service permission information indicates a signal level for permitting service activation.

14. The second apparatus of claim 13, wherein the controller causes a communication with the first apparatus when the second apparatus receives the service entry.

15. The second apparatus of claim 14, wherein the service entry is a connection request from the first apparatus and the controller is further configured to control the second apparatus to control transmitting a connection response to establish a connection with the first apparatus.

16. The second apparatus of claim 14, wherein the beacon frame includes communication-associated parameters.

17. The second apparatus of claim 16, wherein the communication operates with the received communication-associated parameters.

18. The second apparatus of claim 9, wherein the beacon frame includes communication-associated parameters.

19. The second apparatus of claim 9, further comprising:

after transmitting the beacon frame, transmit a non-modulated carrier continuously during an entry period.

20. A method for communicating between a first apparatus and a second apparatus, the method comprising:

receiving, from the second apparatus, a beacon frame including service information; and

transmitting, to the second apparatus, a service entry associated with the service information.

21. A method for communicating between a first apparatus and a second apparatus, the method comprising:

transmitting, to the first apparatus, a beacon frame including service information at a predetermined time interval; and

receiving, from the first apparatus, a service entry associated with the service information.

22. A computer readable medium storing instructions for communicating between a first apparatus and a second apparatus which, when executed, cause the first apparatus to:

receive, from the second apparatus, a beacon frame including service information; and

transmit, to the second apparatus, a service entry associated with the service information.

23. A computer readable medium storing instructions for communicating between a first apparatus and a second apparatus which, when executed, cause the second apparatus to:

transmit, to the first apparatus, a beacon frame including service information at a predetermined time interval; and

receive, from the first apparatus, a service entry associated with the service information.