System and method for determining a receiver threshold for a trainable transmitter system

• US 20060226949A1
• Filed: 04/12/2005
• Published: 10/12/2006
• Est. Priority Date: 04/12/2005
• Status: Abandoned Application

• Current Assignee: Gentex Corporation
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Inventors: Reene, Jason L.
• Application Number:
  US11/104,398
• Publication Number:
  US 20060226949A1
• Time in Patent Office: Days
• US Class Current: 340/5.250
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user
• CPC Class Codes: G08C 19/28 using pulse code
• CPC Class Codes: G08C 2201/31 Voice input
• CPC Class Codes: G08C 2201/62 Rolling code

Abstract

A trainable transmitter includes a receiver circuit and a control circuit. The receiver circuit is configured to receive signals. The control circuit is coupled to the receiver circuit and is configured to determine a noise level for a frequency range of the receiver circuit. The control circuit is further configured to select and provide a receiver threshold to the receiver circuit. The receiver threshold is variable based on the noise level. The trainable transmitter may be integrated in a vehicle, in particular a vehicle interior element.

Claims

1. A method for determining a receiver threshold for a trainable transmitter, the method comprising:

receiving a request to enter a training mode from a user;

determining a noise level for a frequency range of a receiver of the trainable transmitter; and

selecting a receiver threshold based on the noise level.

2. A method according to claim 1, wherein the noise level is an ambient RF noise level.

3. A method according to claim 1, wherein determining the noise level includes determining an average ambient RF noise level.

4. A method according to claim 1, further comprising providing the receiver threshold to the receiver of the trainable transmitter.

5. A method according to claim 4, wherein the receiver threshold is a threshold voltage signal.

6. A method according to claim 1, wherein the trainable transmitter is integrated in a vehicle.

7. A method according to claim 6, wherein the trainable transmitter is integrated in a vehicle interior element.

8. A trainable transmitter comprising:

a receiver circuit configured to receive signals; and

a control circuit coupled to the receiver circuit and configured to determine a noise level for a frequency range of the receiver circuit and to select and provide a receiver threshold to the receiver circuit, the receiver threshold being variable based on the noise level.

9. A trainable transmitter according to claim 8, wherein the receiver threshold is a threshold voltage signal.

10. A trainable transmitter according to claim 8, wherein the noise level is an ambient RF noise level.

11. A trainable transmitter according to claim 8, wherein the control circuit is configured to determine an average ambient RF noise level for the frequency range of the receiver circuit.

12. A trainable transmitter according to claim 8, wherein the receiver circuit is included in a transceiver.

13. A trainable transmitter according to claim 8, further comprising:

a user input device coupled to the control circuit;

wherein the control circuit determines the noise level and selects a receiver threshold based on the noise level in response to actuation of the user input device.

14. A trainable transmitter according to claim 8, wherein the trainable transmitter is integrated in a vehicle.

15. A trainable transmitter according to claim 14, wherein the trainable transmitter is integrated in a vehicle interior element.

16. A method for training a trainable transmitter, the method comprising:

receiving a request to enter a training mode from a user;

determining a noise level for a frequency range of a receiver of the trainable transmitter;

selecting a receiver threshold based on the noise level;

providing the receiver threshold to the receiver of the trainable transmitter; and

beginning the training mode of the trainable transmitter.

17. A method according to claim 16, wherein the noise level is an ambient RF noise level.

18. A method according to claim 16, wherein determining the noise level includes determining an average ambient RF noise level.

19. A method according to claim 16, wherein the training mode of the trainable transmitter comprises:

receiving a control signal from an original transmitter associated with a remote control system;

detecting a frequency and control data of the control signal; and

identifying a type of remote control system based on the frequency and control data of the control signal.

20. A method according to claim 16, wherein the trainable transmitter is integrated in a vehicle.