System for extending infrared remote control

• US 5,815,108 A
• Filed: 12/18/1996
• Issued: 09/29/1998
• Est. Priority Date: 12/18/1996
• Status: Expired due to Term

• Current Assignee: VOXX Electronics Corporation (VOXX International Corporation)
• Original Assignee: Terk Technologies Corp. (VOXX International Corporation)
• Inventors: Terk, Neil
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): Wong, Albert K.
• Application Number:
  US08/768,673
• Time in Patent Office: 650 Days
• Field of Search: 341/173, 341/176, 359/145, 359/146, 359/147, 381/3, 381/14, 348/734, 348/729, 455/42
• US Class Current: 341/176
• CPC Class Codes: G08C 2201/40 Remote control systems using repeaters, converters, gateways
• CPC Class Codes: G08C 23/04 using light waves, e.g. infrared
• CPC Class Codes: H04B 1/202 by remote control

Abstract

An assembly or system for effecting control of an electronic device having an infrared sensor for receiving an infrared control signal from a manually actuated remote control comprises, in accordance with the present invention, an infrared sensor for receiving and converting the infrared control signal from the remote control to an electrical signal, the sensor being attached to an audio speaker assembly of an audio reproduction system. A signal generator also attached to the speaker assembly is operatively connected to the sensor for generating an RF carrier signal modulated by control information encoded in the infrared control signal and the electrical signal. A transmission link is provided for transmitting the modulated RF carrier signal from the speaker assembly to the electronic device. A signal receiver disposed adjacent to the infrared sensor of the electronic device receives the modulated RF carrier signal and converts the modulated RF carrier signal to a secondary infrared signal essentially identical to the infrared control signal.

Claims

1. An infrared remote control extension system for effecting control of an electronic device having an infrared sensor for receiving an infrared control signal from a manually actuated remote control, the assembly comprising:

an audio speaker assembly including an electro-acoustic transducer, said transducer being operatively coupled to an audio reproduction system;

an infrared sensor at least indirectly attached to said speaker assembly for receiving and converting the infrared control signal from the remote control to an electrical signal;

a signal generator operatively connected to said sensor for generating an RF carrier signal containing or carrying control information encoded in said infrared control signal and said electrical signal;

transmission means for transmitting the RF carrier signal from said signal generator to the electronic device; and

a signal receiver at the electronic device for receiving and converting the RF carrier signal transmitted from said signal generator to a secondary infrared signal essentially identical to said infrared control signal, said signal receiver being disposed adjacent to the infrared sensor of the electronic device.

2. The extension system defined in claim 1 wherein said transmission means includes a wire or cable extending from said transducer to an amplification unit of said audio reproduction system, said wire or cable being electrically connected to said signal generator and to said amplification unit so that said wire or cable carries an electrical audio signal from said amplification unit toward said transducer and carries said RF carrier signal from said signal generator toward said signal receiver.

3. The extension system defined in claim 2 wherein said transmission means further includes a first connector for conducting the RF carrier signal from said wire or cable to a first location of a wiring network internal to a building, said transmission means also including a second connector for conducting the RF carrier signal from a second location of said wiring network to said signal receiver.

4. The extension system defined in claim 3 wherein said transmission means additionally includes a low-pass filter for blocking said RF carrier signal from entering said amplification unit.

5. The extension system defined in claim 4 wherein said transmission means also includes a high-pass filter for blocking said audio signal from said amplification unit from being transmitted over said wiring network via said first connector.

6. The extension system defined in claim 2 wherein said transmission means further includes an electrical line extending from said wire or cable to said signal receiver, said RF carrier signal being transmitted over said wire or cable and said electrical line to said signal receiver.

7. The extension system defined in claim 1 wherein said transmission means includes an antenna operatively connected to said signal generator for wirelessly transmitting said RF carrier signal from said signal generator to said signal receiver.

8. The extension system defined in claim 7 wherein a wireless audio signal receiver is operatively connected to said transducer, further comprising modification means operatively connected to said audio signal receiver and said transducer for modifying a characteristic of an audio signal applied to said transducer from said audio signal receiver, said sensor being operatively connected to said modification means for changing said characteristic in accordance with instructions encoded in said infrared control signal.

9. The extension system defined in claim 8 wherein said characteristic is an amplitude of the audio signal applied to the speaker assembly.

10. The extension system defined in claim 1 wherein said speaker assembly includes a speaker housing, said sensor being mounted to said housing.

11. A method for effecting control of an electronic device having an infrared sensor for receiving an infrared control signal from a manually actuated remote control, the method comprising:

operating the remote control to produce the infrared signal;

receiving said infrared signal at an audio speaker assembly of an audio reproduction system;

at the speaker assembly, generating an RF carrier frequency;

also at the speaker assembly, modulating the RF carrier frequency with instructions encoded in the received infrared control signal;

transmitting the RF carrier frequency from the speaker assembly to the electronic device; and

at the electronic device, receiving the RF carrier frequency;

in response to the received RF carrier frequency, generating, at said electronic device, a secondary infrared signal substantially similar to said infrared control signal; and

emitting said secondary infrared signal toward the infrared sensor of the electronic device.

12. The method defined in claim 11 wherein the transmitting of the RF carrier frequency includes transmitting the RF carrier frequency over a wire or cable extending from said speaker assembly to an amplification unit of said audio reproduction system.

13. The method defined in claim 12 wherein the transmitting of the RF carrier frequency further includes conducting the RF carrier frequency from said wire or cable to a socket at a first location of a wiring network internal to a building, transmitting the RF carrier frequency over the wiring network, and conducting the RF carrier frequency from a second location of said wiring network to said signal receiver.

14. The method defined in claim 13, further comprising blocking said RF carrier frequency from entering said amplification unit.

15. The method defined in claim 14, further comprising blocking an audio signal from said amplification unit from being transmitted over said wiring network via said first connector.

16. The method defined in claim 13 wherein said wiring network is a twisted-pair telephone wiring network.

17. The method defined in claim 12 wherein the transmitting of the RF carrier frequency further includes transmitting said RF carrier frequency over an electrical line extending from said wire or cable to said signal receiver.

18. The method defined in claim 11 wherein the transmitting of the RF carrier frequency includes wirelessly emitting said RF carrier frequency from an antenna operatively connected to said speaker assembly.

19. The method defined in claim 18, further comprising:

receiving a wireless audio signal at said speaker assembly;

converting said wireless audio signal to an electrical signal;

applying said electrical signal to said speaker to generate an acoustic pressure wave; and

modifying, in accordance with instructions encoded in said infrared control signal, a characteristic of said electrical signal applied to said speaker assembly.

20. The method defined in claim 18 wherein said characteristic is a loudness or volume level of a reproduced audio signal.

21. An infrared remote control extension system for effecting control of an electronic device having an infrared sensor for receiving an infrared control signal from a manually actuated remote control, the assembly comprising:

an audio speaker assembly including an electro-acoustic transducer, said transducer being operatively coupled to an audio reproduction system;

an infrared sensor at least indirectly attached to said speaker assembly for receiving and converting the infrared control signal from the remote control to an electrical signal;

a signal generator operatively connected to said sensor for generating an RF carrier signal carrying control information encoded in said infrared control signal and said electrical signal;

transmission means for transmitting the RF carrier signal from said signal generator to the electronic device;

a signal receiver at the electronic device for receiving and converting the RF carrier signal transmitted from said signal generator to a secondary infrared signal essentially identical to said infrared control signal, said signal receiver being disposed adjacent to the infrared sensor of the electronic device; and

modification means operatively connected to said transducer for modifying a characteristic of an audio signal applied to said audio reproduction system, said sensor being operatively connected to said modification means for changing said characteristic in accordance with instructions encoded in said infrared control signal.

22. The extension system defined in claim 21 wherein said characteristic is an amplitude of the audio signal applied to the speaker assembly.

23. A method for effecting control of an electronic device having an infrared sensor for receiving an infrared control signal from a manually actuated remote control, the method comprising:

operating the remote control to produce the infrared signal;

receiving said infrared signal at an audio speaker assembly of an audio reproduction system;

at the speaker assembly, generating an RF carrier frequency containing or carrying instructions encoded in the received infrared control signal;

transmitting the RF carrier frequency from the speaker assembly to the electronic device;

at the electronic device, receiving the RF carrier frequency;

in response to the received RF carrier frequency, generating, at said electronic device, a secondary infrared signal substantially similar to said infrared control signal;

emitting said secondary infrared signal toward the infrared sensor of the electronic device;

receiving an audio signal at said speaker assembly;

converting said audio signal to an electrical signal;

applying said electrical signal to said speaker to generate an acoustic pressure wave; and

modifying, in accordance with instructions encoded in said infrared control signal, a characteristic of said electrical signal applied to said speaker assembly.

24. The method defined in claim 23 wherein said characteristic is a loudness or volume level of a reproduced audio signal.

25. An infrared remote control extension system for effecting control of an electronic device having, an infrared sensor for receiving an infrared control signal from a manually actuated remote control, the assembly comprising:

an audio speaker assembly including an electro-acoustic transducer, said transducer being operatively coupled to an audio reproduction system;

an infrared sensor at least indirectly attached to said speaker assembly for receiving and converting the infrared control signal from the remote control to an electrical signal;

a signal generator operatively connected to said sensor for generating an RF carrier signal containing or carrying control information encoded in said infrared control signal and said electrical signal;

transmission means for transmitting the RF carrier signal from said signal generator to the electronic device, and

a signal receiver at the electronic device for receiving and converting the RF carrier signal transmitted from said signal generator to a secondary infrared signal essentially identical to said infrared control signal, said signal receiver being disposed adjacent to the infrared sensor of the electronic device, said transmission means including an antenna operatively connected to said signal generator for wirelessly transmitting said RF carrier signal from said signal generator to said signal receiver.