Radio frequency communication devices using chaotic signal and method thereof

• US 20070260236A1
• Filed: 08/30/2006
• Published: 11/08/2007
• Est. Priority Date: 04/14/2006
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Jae-hyon, Han, Sang-Min, Kim, Young-hwan, Lee, Seong-soo, Son, Mi-hyun
• Application Number:
  US11/512,377
• Publication Number:
  US 20070260236A1
• Time in Patent Office: Days
• US Class Current: 606/41
• CPC Class Codes: H04B 1/69 Spread spectrum techniques
• CPC Class Codes: H04M 1/6066 including a wireless connection
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

RF (radio frequency) communication devices which use a chaotic signal and a method thereof are provided. An RF communication system includes: a transmitter terminal which generates a chaotic signal including a plurality of frequency components in a predetermined frequency band and transmits a chaotic carrier generated by inserting a data signal including information to be transmitted into the chaotic signal to a receiver terminal; and the receiver terminal extracts the data signal from the chaotic carrier received from the transmitter terminal via a wireless network and outputs the extracted data signal. As a result, low power, light weight local area RF communication devices can be realized.

Claims

1. An RF (radio frequency) communication system comprising:

a transmitter terminal which generates a chaotic signal comprising a plurality of frequency components in a predetermined frequency band and transmits a chaotic carrier generated by synthesizing a data signal with the chaotic signal to a receiver terminal; and

the receiver terminal extracts the data signal from the chaotic carrier received from the transmitter terminal via a wireless network.

2. The RF communication system of claim 1, wherein the transmitter terminal comprises:

a chaotic signal generator which generates the chaotic signal;

a modulator which synthesizes the data signal with the chaotic signal to generate the chaotic carrier; and

an antenna which transmits the chaotic carrier generated by the modulator.

3. The RF communication system of claim 1, wherein the receiver terminal comprises a detector which senses the chaotic carrier and extracts the data signal.

4. The RF communication system of claim 1, wherein the transmitter terminal comprises a signal processing circuit which converts the data signal to a base band and outputs a digital signal.

5. The RF communication system of claim 4, wherein the signal processing circuit is a mobile station modem of a portable remote terminal.

6. The RF communication system of claim 1, wherein the transmitter terminal comprises an audio interface which receives an analog data signal from an external source.

7. The RF communication system of claim 6, wherein the transmitter terminal further comprises an ADC (analog-to-digital converter) which converts an analog data signal output from the audio interface into a digital data signal.

8. The RF communication system of claim 1, wherein the receiver terminal comprises a DAC which converts the extracted digital data signal into an analog data signal.

9. The RF communication system of claim 8, wherein the receiver terminal further comprises an audio interface which outputs the analog data signal.

10. The RF communication system of claim 1, wherein the transmitter terminal is one of a portable remote terminal, a computer, an MP3 (MPEG Audio Layer-3) player, an RF transceiver, a TV (television), an audio system, a PMP (portable multimedia player), a PDA (personal digital assistant), an RF headset, an RF mouse, and a computer peripheral device.

11. The RF communication system of claim 1, wherein the receiver terminal is one of a portable remote terminal, a computer, an MP3 player, an RF transceiver, a TV, an audio device, a PMP, a PDA, an RF headset, an RF mouse, a computer peripheral device, and a speaker.

12. An RF communication device comprising:

a chaotic signal generator which generates a chaotic signal comprising a plurality of frequency components in a predetermined frequency band, and which transmits a chaotic carrier generated by synthesizing a data signal comprising information to be transmitted with the chaotic signal, to a receiver terminal.

13. The RF communication device of claim 12, further comprising

a modulator which synthesizes the data signal with the chaotic signal to generate a chaotic carrier;

and an antenna which transmits the chaotic carrier generated by the modulator.

14. The RF communication device of claim 12, further comprising a signal processing circuit which converts the data signal to a base band and outputs a digital signal.

15. The RF communication device of claim 14, wherein the signal processing circuit is a mobile station modem of a portable remote terminal.

16. The RF communication device of claim 12, further comprising an audio interface which receives an analog data signal.

17. The RF communication device of claim 16, further comprising an ADC which converts an analog data signal output from the audio interface into a digital data signal.

18. The RF communication device of claim 12, wherein the RF communication device is at least one of a portable remote terminal, a computer, an MP3 player, an RF transceiver, a TV, an audio device, a PMP, a PDA, an RF headset, an RF mouse, and a computer peripheral device.

19. An RF communication device comprising:

an antenna which receives a chaotic carrier generated by inserting a data signal into a chaotic signal comprising a plurality of frequency components in a predetermined frequency band via a wireless network, extracts the data signal from the chaotic carrier, and processes the data signal.

20. The RF communication device of claim 19, further comprising a detector which senses the chaotic carrier and extracts the data signal.

21. The RF communication device of claim 20, wherein the detector is a diode which detects an envelope of the data signal from the chaotic carrier.

22. The RF communication device of claim 19, further comprising:

a DAC which converts he extracted digital data signal into an analog data signal; and

an audio interface which outputs the analog data signal.

23. The RF communication device of claim 19, wherein the RF communication device is one of a portable remote terminal, a computer, an MP3 player, an RF transceiver, a TV, an audio device, a PMP, a PDA, an RF headset, an RF mouse, a computer peripheral device, and a speaker.

24. An RF communication device comprising:

a transmitter which generates a chaotic signal comprising a plurality of frequency components in a predetermined frequency band and transmits a chaotic carrier generated by inserting a data signal comprising information to be transmitted into the chaotic signal to a receiver;

wherein the receiver extracts the data signal from the chaotic carrier received through an antenna and processes the extracted data signal.

25. The RF communication device of claim 24, further comprising:

a switch which connects one of the transmitter and the receiver to the antenna; and

a BPF (band pass filter) which filters the chaotic carrier transmitted or received through the antenna.

26. The RF communication device of claim 24, further comprising a duplexer which connects one of the transmitter and the receiver to the antenna and filters the chaotic carrier transmitted or received through the antenna.

27. The RF communication device of claim 24, wherein the transmitter comprises:

a chaotic signal generator which generates the chaotic signal; and

a modulator which synthesizes the data signal with the chaotic signal to generate the chaotic carrier;

wherein the chaotic carrier generated by the modulator is transmitted by the antenna.

28. The RF communication device of claim 24, wherein the receiver comprises a detector which senses an envelope of the received chaotic carrier and extracts the data signal.

29. The RF communication device of claim 24, wherein the transmitter further comprises a signal processing circuit which converts the data signal to a base band and outputs a digital signal.

30. The RF communication device of claim 29, wherein the signal processing circuit is a mobile station modem of a portable remote terminal.

31. The RF communication device of claim 24, wherein the transmitter further comprises an audio interface which receives an analog data signal from an external source.

32. The RF communication device of claim 31, wherein the transmitter further comprises an ADC which converts the analog data signal output from the audio interface into a digital data signal.

33. The RF communication device of claim 24, wherein the receiver comprises:

a DAC which converts the extracted digital data signal into an analog data signal; and

an audio interface which outputs the analog data signal.

34. The RF communication device of claim 24, wherein the RF communication device is at least one of a portable remote terminal, a computer, an MP3 player, an RF transceiver, a TV, an audio device, a PMP, a PDA, an RF headset, an RF mouse, and a computer peripheral device.

35. A signal processing method of an RF communication device comprising:

receiving a chaotic carrier generated by inserting a data signal into a chaotic signal comprising a plurality of frequency components in a predetermined frequency band from an external source;

extracting the data signal from the received chaotic carrier; and

processing the extracted data signal so as to output the extracted data signal.

36. A signal processing method of an RF communication device comprising:

generating a chaotic signal comprising a plurality of frequency components in a predetermined frequency band;

inserting a data signal comprising information to be transmitted into the chaotic signal to generate a chaotic carrier; and

transmitting the chaotic carrier to an external device.

37. The signal processing method of claim 36, further comprising converting an analog data signal into a digital data signal to generate the data signal.