Frequency matching and optimization system for an RF receiver

• US 7,376,401 B2
• Filed: 04/12/2005
• Issued: 05/20/2008
• Est. Priority Date: 04/12/2005
• Status: Expired due to Fees

• Current Assignee: HRH Newco Corporation
• Original Assignee: Wayne-Dalton Corporation (HRH Door Corp.)
• Inventors: Maurer, Steven K.
• Primary Examiner(s): Nguyen; Simon
• Application Number:
  US11/104,945
• Publication Number:
  US 20060229050A1
• Time in Patent Office: 1,134 Days
• Field of Search: 455418-420, 455269-2791, 455352-354, 455346-349, 340 57- 573
• US Class Current: 455/130
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 2009/00928 for garage doors
• CPC Class Codes: G07C 2209/61 Signal comprising different frequencies, e.g. frequency hopping
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks

Abstract

A system for selectively changing the operating frequency of an RF receiver includes a receiver having a selection interface, and a frequency matching module removably attached to the barrier operator. After detecting an input on its selection interface, the receiver responsively changes its operating frequency from its current frequency to another frequency, as determined by the input. The frequency matching module then optimizes received signals of the same frequency as the receiver'"'"'s operating frequency, thereby enhancing the receiver'"'"'s range of signal detection.

Claims

1. A frequency matching and optimization system for an RF receiver, comprising:

a barrier operator having;

a selection interface to receive a selection input, said selection input associated with at least two predetermined user selectable frequencies;

a receiver to detect signals of any number of frequencies, said receiver configured to detect signals of a selected predetermined frequency in response to the receipt of said selection input at said selection interface; and

a frequency matching module having an antenna to receive signals, said frequency matching module removably coupled to said receiver, wherein when said frequency matching module is coupled to said receiver, said frequency matching module itself optimizes signals of said selected frequency, which are detected by said receiver.

2. The system according to claim 1, wherein said selection interface comprises a selection jumper wire.

3. The system according to claim 1, wherein said selection interface comprises a frequency selection switch.

4. The system according to claim 1, wherein said selection interface comprises an operator controller coupled to said barrier operator and a receiver select line coupling said receiver with said operator controller.

5. The system according to claim 4, wherein said selection input comprises a control signal.

6. The system according to claim 1, wherein said frequency matching module is removably coupled to said receiver by a connector.

7. The system according to claim 1, wherein said antenna is of a length suitable to optimize the RF energy contained in a transmitted signal of said desired frequency.

8. The system according to claim 7, wherein said antenna is external to said matching module.

9. The system according to claim 7, wherein said antenna is internal to said matching module.

10. The system according to claim 1, wherein said frequency matching module comprises a frequency tuning network to optimize signals of said desired frequency.

11. The system according to claim 10, wherein said frequency tuning network comprises an operatively arranged network of capacitors and inductors.

12. The system according to claim 11, wherein said operatively arranged network comprises a Pi configuration.

13. The system according to claim 11, wherein said operatively arranged network comprises an L configuration.

14. A frequency matching and optimization system for a receiver comprising:

a barrier operator having a receiver responsive to a carrier signal of a first frequency;

a frequency matching module to optimize a received carrier signal of a second frequency, said frequency matching module removably coupled to said receiver;

whereby in response to coupling said frequency matching module to said receiver, said receiver becomes responsive to said second frequency.

15. A frequency matching and optimization system for a receiver comprising:

a plurality of frequency select modules; and

a first frequency matching module removably coupled to a receiver, wherein when said first frequency select module is coupled to said receiver, said receiver is enabled to be responsive to signals of a first predetermined frequency;

wherein, the receiver is selectively enabled to be responsive to signals of a second predetermined frequency upon the removal of said first frequency select module, and the coupling of a second frequency select module to said receiver.