Method of processing signal, method of recovering signal, and devices performing the methods

1. A signal processing method comprising:

sampling a data signal to generate a sampled signal;

compressing the sampled signal based on a quantization parameter to generate a compressed signal; and

generating transmission data by matching at least one characteristic feature in the data signal and the compressed signal.

2. The signal processing method of claim 1 , further comprising:

determining the at least one characteristic feature within the data signal.

3. The signal processing method of claim 1 , wherein the at least one characteristic feature includes a start point, an end point, a peak point, and a valley point of the data signal.

4. The signal processing method of claim 1 , wherein the data signal indicates a movement of a user.

5. The signal processing method of claim 4 , wherein the at least one characteristic feature is based on a gait characteristic of the user.

6. The signal processing method of claim 1 , wherein the method further comprises:

appending sampling information associated with the sampling of the data signal to a header of the transmission data.

7. The signal processing method of claim 1 , further comprising:

detecting the data signal at one or more intervals determined based on at least one step of a user associated with the data signal.

8. A signal recovering method comprising:

receiving transmission data from an external device;

extracting, from the transmission data, a compressed signal having a data signal detected by the external device therein; and

recovering the data signal based on the compressed signal and at least one characteristic feature of the data signal, the recovering including,

decompressing the compressed signal based on a quantization parameter to generate a decompressed signal, and

sampling the decompressed signal based on sampling information included in the transmission data to generate a sampling signal having a same period as the data signal.

9. The signal recovering method of claim 8 , wherein the recovering comprises:

performing compensation on the sampling signal based on the at least one characteristic feature.

10. The signal recovering method of claim 8 , further comprising:

extracting the at least one characteristic feature from the transmission data.

11. The signal recovering method of claim 8 , further comprising:

estimating the at least one characteristic feature based on the transmission data.

12. The signal recovering method of claim 8 , wherein the at least one characteristic feature includes at least one of a start point, an end point, a peak point, and a valley point of the data signal.

13. The signal recovering method of claim 8 , wherein the data signal indicates a movement of a user.

14. The signal recovering method of claim 13 , wherein the at least one characteristic feature is based on a gait characteristic of the user.

15. A signal processing device comprising:

a receiver configured to receive a data signal; and

a controller configured to,

sample the data signal to generate a sampled signal,

compress the sampled signal based on a quantization parameter to generate a compressed signal, and

generate transmission data by matching at least one characteristic feature in the data signal and the compressed signal.

16. The signal processing device of claim 15 , wherein the controller is configured to determine the at least one characteristic feature within the data signal.

17. The signal processing device of claim 15 , wherein the at least one characteristic feature includes at least one of a start point, an end point, a peak point, and a valley point of the data signal.

18. The signal processing device of claim 15 , wherein the data signal indicates a movement of a user.

19. The signal processing device of claim 18 , wherein the at least one characteristic feature is based on a gait characteristic of the user.

20. The signal processing device of claim 15 , wherein the controller is configured to detect the data signal received by the receiver at one or more intervals determined based on at least one step of a user associated with the data signal.

21. A signal recovering device comprising:

a receiver configured to receive transmission data from an external device; and

a controller configured to,

extract, from the transmission data, a compressed signal having a data signal detected by the external device therein, and

recover the data signal based on the compressed signal and at least one characteristic feature of the data signal by decompressing the compressed signal based on a quantization parameter to generate a decompressed signal and sampling the decompressed signal based on sampling information included in the transmission data to generate a sampling signal having a same period as the data signal.

22. The signal recovering device of claim 21 , wherein the controller is configured to,

perform compensation on the sampling signal based on at least one characteristic feature of the data signal.

23. The signal recovering device of claim 21 , wherein the controller is configured to extract the at least one characteristic feature from the transmission data.

24. The signal recovering device of claim 21 , wherein the controller is configured to estimate the at least one characteristic feature based on the transmission data.

25. The signal recovering device of claim 21 , wherein the at least one the characteristic feature includes at least one of a start point, an end point, a peak point, and a valley point of the data signal.

26. The signal recovering device of claim 21 , wherein the data signal indicates a movement of a user.

27. The signal recovering device of claim 26 , wherein the at least one characteristic feature is based on a gait characteristic of the user.