Door lock mechanism controller and method of controlling door lock mechanism

• US 20070290792A1
• Filed: 06/12/2007
• Published: 12/20/2007
• Est. Priority Date: 06/12/2006
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Tsuchimochi, Naoki, Kimura, Takashi, Watanabe, Yasuharu
• Granted Patent: US 7,902,960 B2
• Time in Patent Office: Days
• US Class Current: 340/5.61
• CPC Class Codes: B60R 2325/105 Radio frequency identification data [RFID]
• CPC Class Codes: B60R 25/2072 with means for preventing jamming or interference of a remote switch control signal
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks

Abstract

A door lock mechanism controller includes a first communication device and a second communication device. The first communication device transmits a first radio signal to a first communication terminal through a first antenna so as to receive authentication information for operating a door lock mechanism. The second communication device transmits/receives a radio signal to/from a second communication terminal so as to receive authentication information for operating the door lock mechanism. A control prevents operation of an actuator based on the authentication information received by the second antenna, when the first radio signal is transmitted by the first antenna.

Claims

1. A door lock mechanism controller comprising:

a communication terminal configured to send an authentication signal for operating a door lock mechanism;

a first antenna and a second antenna each configured to send a radio signal;

a first communication device connected to the first antenna for receiving the authentication signal from the communication terminal; and

a second communication device connected to the second antenna for receiving the authentication signal from another communication terminal; and

a control configured to selectively actuate the door lock mechanism based on one of the authentication signal received by the first communication device and the authentication signal received by the second communication device, wherein the control prevents actuation of the door lock mechanism based on the authentication information received by the second communication device while the radio signal is being sent by the first antenna.

2. The door lock mechanism controller according to claim 1, wherein

the control inhibits the second antenna from receiving a radio signal, when a radio signal is sent by the first antenna.

3. The door lock mechanism controller of claim 1, wherein

the control inhibits a process for extracting the authentication signal included in the radio signal received by the second antenna, when a radio signal is sent by the first antenna.

4. The door lock mechanism controller of claim 1, further comprising:

an operational device that is operated by a user, wherein

the second communication device sends a radio signal from the second antenna at predetermined intervals, and

the control causes the first communication device to start sending a radio signal through the first antenna and to inhibit the second communication device from receiving a radio signal, upon operation of the operational device.

5. The door lock mechanism controller according to claim 1, wherein

the control stops sending a radio signal through the first antenna, and cancels inhibition of receiving a radio signal by the second communication devise, when no response has been generated from the first communication terminal over a predetermined period of time in response to transmission of the radio signal through the first antenna.

6. The door lock mechanism controller of claims 1, wherein the first antenna and the second antenna are contained in a same door handle of a vehicle.

7. A door lock mechanism controller comprising:

a first communication terminal configured to send a first authentication signal for operating a door lock mechanism;

a second communication terminal configured to send a second authentication signal for operating the door lock mechanism;

a first antenna configured to send a first radio signal;

a second antenna configured to send a second radio signal;

a first communication device connected to the first antenna for receiving the first authentication signal from the first communication terminal; and

a second communication device connected to the second antenna for receiving the second authentication signal from the second communication terminal; and

a control configured to selectively actuate the door lock mechanism based on one of the authentication signal received by the first communication device and the authentication signal received by the second communication device, wherein the control prevents actuation of the door lock mechanism based on the authentication signal received by the second communication device, while the first radio signal is being sent by the first antenna.

8. The door lock mechanism controller according to claim 16,

wherein the control prevents the second antenna from receiving the second radio signal while the first radio signal is being sent by the first antenna.

9. The door lock mechanism controller according to claim 16,

wherein the control prevents a process from extracting the authentication information included in the second radio signal received by the second antenna, while the first radio signal is being sent by the first antenna.

10. The door lock mechanism controller according to claim 16,

wherein the second communication device is configured to send the second radio signal from the second antenna at predetermined intervals,

wherein the control is configured to control the first communication device to start sending the first radio signal through the first antenna;

and

wherein the control is configured to prevent the second communication device from receiving the second radio signal.

11. The door lock mechanism controller according to claim 16, wherein

the control stops sending the first radio signal through the first antenna, and cancels prevention of receiving the second radio signal by the second communication device, when no response has been generated from the first communication terminal over a predetermined period of time in response to transmission of the first radio signal through the first antenna.

12. The door lock mechanism controller according to claim 16, wherein the first antenna and the second antenna are contained in a same door handle of a vehicle.

13. A method for operating a door lock mechanism comprising:

controlling an actuator for operating a door lock mechanism for locking and unlocking a vehicle door,

sending a first radio signal through a first antenna so as to receive authentication information for operating the door lock mechanism from a first communication terminal;

sending a second radio signal through a second antenna so as to receive authentication information for operating the door lock mechanism from the second communication terminal;

controlling the actuator, based on one of the authentication information received by the first antenna and the authentication information received by the second antenna, and

preventing operation of the actuator based on the authentication information received by the second antenna, when the first radio signal is sent by the first antenna.

14. A door lock mechanism controller comprising:

a communication terminal configured to send an authentication signal for operating a door lock mechanism;

a first antenna and a second antenna each configured to send a radio signal;

first communication means connected to the first antenna for receiving the authentication signal from the communication terminal; and

second communication means connected to the second antenna for receiving the authentication signal from another communication terminal; and

control means configured to selectively actuate the door lock mechanism based on one of the authentication signal received by the first communication means and the authentication signal received by the second communication means,

wherein the control prevents actuation of the door lock mechanism based on the authentication information received by the second communication means while the radio signal is being sent by the first antenna.