SYSTEMS AND METHODS FOR CONFIGURING AND OPERATING A WIRELESS CONTROL SYSTEM IN A VEHICLE FOR ACTIVATION OF A REMOTE DEVICE

• US 20130142269A1
• Filed: 11/30/2012
• Published: 06/06/2013
• Est. Priority Date: 12/02/2011
• Status: Active Grant

• Current Assignee: Gentex Corporation
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Inventors: Witkowski, Todd R.
• Granted Patent: US 8,837,608 B2
• Time in Patent Office: Days
• US Class Current: 375/259
• CPC Class Codes: H04B 7/0689 using different transmission schemes, at least one of them being a diversity transmission scheme

Abstract

Control systems for mounting in a vehicle are configured for transmitting a control signal to a receiver associated with a remote device. A control system receives a first control signal associated with a first transmission scheme. The system determines a bit pattern of the first control signal, and, based on the determined bit pattern, the system determines a second transmission scheme.

Claims

1. A method for training a trainable transmitter in a vehicle using an original transmitter, comprising:

receiving a first control signal from the original transmitter;

determining a bit pattern of the first control signal without decoding the first control signal, wherein the bit pattern is associated with a first transmission scheme;

determining a second transmission scheme based on the determined bit pattern, wherein the second transmission scheme is different from the first transmission scheme;

storing the second transmission scheme in a memory associated with a user-selectable transmission feature; and

transmitting a second control signal using the second transmission scheme stored in the memory in response to a user selection of the user-selectable transmission feature.

2. The method of claim 1, wherein the trainable transmitter is unable to transmit the second control signal using the first transmission scheme.

3. The method of claim 1, wherein the step of determining the bit pattern of the first control signal comprises determining a number of bits of the first control signal.

4. The method of claim 1, wherein the step of determining the bit pattern of the first control signal comprises determining a number of bits of a preamble portion of the first control signal.

5. The method of claim 1, wherein the step of determining the bit pattern of the first control signal comprises determining a first number of bits associated with a preamble portion of the first control signal and a second number of bits associated with a data message portion of the first control signal.

6. The method of claim 1, wherein the step of determining the bit pattern of the first control signal comprises determining a 12-bit preamble portion of the first control signal followed by a 72-bit data message portion of the first control signal.

7. The method of claim 1, wherein the step of determining the bit pattern of the first control signal comprises determining a data message portion of the first control signal and a non-data message portion of the first control signal.

8. The method of claim 1 further comprising:

determining a transmission frequency; and

storing in the memory the determined transmission frequency, wherein the step of transmitting the second control signal using the second transmission scheme includes transmitting at the second control signal at the determined frequency.

9. The method of claim 8, wherein the first control signal is received at a first frequency and a second frequency, wherein the step of determining a transmission frequency comprises selecting one of the first frequency and the second frequency.

10. The method of claim 8, wherein the first control signal is received at a first frequency and a second frequency, wherein the step of determining a transmission frequency comprises selecting a first received frequency from the first frequency and the second frequency.

11. The method of claim 8, wherein the step of determining a transmission frequency is based on an association of the transmission frequency with the determined bit pattern.

12. The method of claim 11, wherein the first control signal is received at a received frequency, wherein the transmission frequency is different from the received frequency.

13. A method of training a trainable transmitter in a vehicle, the method comprising:

receiving a first control signal at two frequencies according to a first transmission scheme from an original transmitter;

determining a bit pattern of the first control signal without decoding the received first control signal;

determining a second transmission scheme based on the determined bit pattern, wherein the second transmission scheme is different from the first transmission scheme;

storing the determined second transmission scheme and the two frequencies in a memory associated with a user-selectable transmission feature; and

transmitting a second control signal in response to a selection of the user-selectable transmission feature, wherein the second control signal is generated using the second transmission scheme and transmitted at the two frequencies.

14. The method of claim 13, wherein the determined bit pattern comprises a preamble portion of the first control signal followed by a data message portion of the first control signal.

15. The method of claim 13, further comprising:

determining a first received frequency of the two frequencies;

wherein the step of transmitting the second control signal to the remote receiver at the two frequencies comprises sequentially transmitting at the first received frequency and then transmitting at a second frequency of the two frequencies.

16. The method of claim 15, wherein the sequential transmitting is repeated in response to continual selection of the user-selectable transmission feature.

17. The method of claim 13, wherein the first transmission scheme of the first control signal comprises a first rolling code format and the second transmission scheme comprises a second rolling code format.

18. A control system for operating a remote device, the control system comprising:

a receiver configured to receive a first control signal, wherein the first control signal is associated with a first transmission scheme;

a transmitter configured to transmit a second control signal; and

a processing circuit, wherein the processing circuit is configured to;

determine a bit pattern of the first control signal,

determine a second transmission scheme based on the determined bit pattern, wherein the second transmission scheme is different from the first transmission scheme, and

generate the second control signal using the second transmission scheme.

19. The system of claim 18, wherein the first transmission scheme comprises a first rolling code format and the second transmission scheme comprises a second rolling code format.

20. The system of claim 19, wherein the control system is unable to generate the first control signal.