1. A rhythmic lighting method for an LED on a portable electronic device comprising:
(A) determining whether the portable electronic device is playing audio;
(B) if the portable electronic device is playing audio, performing a frequency quantification analysis to the audio; otherwise keeping the same status;
(C) extracting a quantification value for a frequency section of the audio and determining whether the quantification value is exceeding a predetermined value;
(D) if the quantification value exceeds the predetermined value, sending an enabling signal to the portable electronic device to execute a blinking action; and
(E) if the quantification value is less than the predetermined value, the portable electronic device will keep the same status without performing lighting.
2. The method as claimed in claim 1, wherein the portable electronic device is a multimedia player.
3. The method as claimed in claim 2, wherein the multimedia player is a radio.
4. The method as claimed in claim 2, wherein the multimedia player is a MP3 player.
5. The method as claimed in claim 2, wherein the multimedia player is a slide projector.
6. The method as claimed in claim 5, wherein the slide projector is a slide projector capable of playing background music.
7. The method as claimed in claim 1, wherein the lighting action is performed by a LED.
8. The method as claimed in claim 7, wherein the LED is mounted on an external case of the portable electronic device.
9. The method as claimed in claim 1, wherein in step (C), the predetermined value is 5dB.
10. The method as claimed in claim 1, wherein the audio is music with a tempo.
11. The method as claimed in claim 1, wherein the audio is a MP3 song.
12. The method as claimed in claim 1, wherein the audio is a wireless audio.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for using a modulation scheme for communication, the method comprising:
passing a reference chirp signal to a plurality of channels to produce a plurality of sub-carriers;
applying a varying time delay to each of the plurality of sub-carriers;
coding a symbol signal onto each of the plurality of sub-carriers; and
combining the plurality of sub-carriers to produce a composite waveform.
2. The method of claim 1, wherein the symbol signal varies for each of the plurality of subcarriers.
3. The method of claim 1, wherein passing the reference signal to the plurality of channels to produce the plurality of sub-carriers includes:
splitting the reference signal into a plurality of signals.
4. The method of claim 1, further comprising:
transmitting the composite waveform; and
receiving a received composite waveform.
5. The method of claim 4, further comprising:
demodulating the received composite waveform into filtered symbol data.
6. The method of claim 5, wherein demodulating the received composite waveform into filtered symbol data further comprises:
applying a second reference chirp signal to the received composite waveform.
7. The method of claim 6, wherein the reference chirp signal has a reference signal chirp rate, and wherein the second reference chirp signal has the reference signal chirp rate.
8. The method of claim 6, wherein the received composite waveform is received at a receiving location, and wherein the second reference chirp signal is generated at the receiving location.
9. The method of claim 6, wherein applying the second reference chirp signal to the received composite waveform produces a plurality of frequency offset waveforms.
10. The method of claim 9, further comprising:
passing the plurality of frequency offset waveforms to a plurality of sub-channel demodulators.
11. The method of claim 10, wherein each of the plurality of sub-channel demodulators produces filtered symbol data.
12. The method of claim 10, wherein each of the plurality of sub-channel demodulators includes a band-pass filter, such that the plurality of sub-channel demodulators includes a plurality of band-pass filters.
13. The method of claim 12, wherein each of the band pass filters has a corresponding filtering band frequency, the filtering band frequency for each, of the bandpass filters differing, such that each of the plurality of sub-channel demodulators produces filtered data for the corresponding filtering band frequency.
14. The method of claim 10, wherein each of the plurality of sub-channel demodulators includes an envelope detector.
15. The method of claim 1, wherein the waveform is an electromagnetic wave.
16. The method of claim 1, wherein passing the reference chirp signal to the plurality of channels to produce the plurality of sub-carriers includes:
splitting the reference chirp signal into a plurality of reference chirp signals, wherein each of the plurality of reference chirp signals is transmitted to one from the plurality of channels.
17. The method of claim 1, wherein the symbol signal comprises symbol data.
18. The method of claim 1, wherein the symbol signal is generated by amplitude shift keying (ASK).
19. The method of claim 1, wherein the symbol signal is generated by on-off keying.
20. The method of claim 1, wherein the symbol signal is generated via a switch.
21. An offset chirp modulation transmission and receiving apparatus, comprising:
a modulator producing a transmitted complex composite waveform output via a plurality of data inputs, the modulator including a plurality of sub-channel modulators for receiving a plurality of split data inputs from at least one of the plurality of data inputs; and
a demodulator for receiving a complex composite waveform input, the demodulator including a plurality of sub-channel demodulators for producing a plurality of filtered symbol data.
22. The apparatus of claim 21, wherein the plurality of data inputs includes a reference signal.
23. The apparatus of claim 22, wherein the reference signal comprises a chirp.
24. The apparatus of claim 22, wherein the modulator includes a sub-channeling component for sub-channeling the reference signal into the plurality of split data inputs.
25. The apparatus of claim 24, wherein the plurality of split data inputs comprise a plurality of parallel sub-channeled inputs.
26. The apparatus of claim 21, wherein each of the plurality of sub-channel modulators includes a time delay component.
27. The apparatus of claim 21, wherein each of the plurality of inputs includes a symbol data signal.
28. The apparatus of claim 27, wherein the symbol data signal varies for each of the plurality of inputs.
29. The apparatus of claim 27, wherein each of the plurality of sub-channel modulators includes a combining apparatus for combining one from, the plurality of split data inputs with the symbol data signal.
30. The apparatus of claim 29, wherein the combining apparatus comprises a switch.
31. The apparatus of claim 29, wherein the combining apparatus comprises on-off keying.
32. The apparatus of claim 29, wherein the combining apparatus comprises amplitude shift keying (ASK).
33. The apparatus of claim 21, wherein the demodulator includes:
a mixer for mixing the received complex composite waveform with a demodulator reference input to produce a frequency offset composite waveform.
34. The apparatus of claim 33, wherein the demodulator reference input comprises a time offset composite waveform.
35. The apparatus of claim 34, wherein the time offset composite waveform includes a chirp signal.
36. The apparatus of claim 34, wherein the chirp signal is un-modulated.
37. The apparatus of claim 33, wherein the demodulator reference input is generated at the demodulator.
38. The apparatus of claim 21, wherein each of the sub-channel demodulators includes a band pass filter.
39. The apparatus of claim 21, wherein each of the sub-channel demodulators includes an envelope detector.
40. A method for using offset chirp modulation for communication, the method comprising:
transmitting a reference chirp signal to a plurality of channels to produce a plurality of sub-carriers;
applying a varying time delay to each of the plurality of sub-carriers;
coding a symbol signal onto each of the plurality of subcarriers;
combining the plurality of subcarriers to produce a composite waveform;
transmitting the composite waveform;
receiving a composite waveform; and
demodulating the received composite waveform into filtered symbol data.
41. A system for producing a modulation scheme for communication, comprising:
means for passing a reference chirp signal to a plurality of channels to produce a plurality of sub-carriers;
means for applying a varying time delay to each of the plurality of sub-carriers;
means for coding a symbol signal onto each of the plurality of subcarriers; and
means for combining the plurality of subcarriers to produce a composite waveform.