Data collection and analysis system and device

Abstract

A data collection and analysis method includes applying a first noise step to an original data stream with an original character to generate a first data stream with a first character; and applying a second noise step to the first data stream to generate a second data stream with a second character, wherein a first variation between the original character and the first character is greater than a second variation between the original character and the second character.

What is claimed is: 
     
         1 . A data collection and analysis system comprising:
 an input unit for receiving an original data stream with an original character;   an integrated circuit coupled to the input unit, for receiving the original data stream, generating a first data stream with a first character by applying a first noise to the original data stream, and generating a second data stream with a second character by applying a second noise to the first data stream,   wherein a first variation between the original character and the first character is greater than a second variation between the original character and the second character.   
     
     
         2 . The data collection and analysis system of  claim 1 , further comprises:
 a true random number generator for generating a first random number set and a second random number set;   wherein the integrated circuit applies a permanent randomized response (PRR) to the original data stream based on the first random number set, and applies an instantaneous randomized response (IRR) to the temporal data stream based on the second random number set.   
     
     
         3 . The data collection and analysis system of  claim 2 , wherein the true random number generator generates a third random number set and the processor applies a synthetic randomized response (SRR) to the first data stream based on a third random number to generate the second data stream. 
     
     
         4 . The data collection and analysis system of  claim 1 , wherein identification information in the original data stream is de-identified after applying the first noise to the original data stream. 
     
     
         5 . The data collection and analysis system of  claim 1 , further comprises:
 a pre-processor for receiving an input data stream and utilizing Hash encoding to the input data stream to generate the original data stream with the original character to the input unit.   
     
     
         6 . A data collection and analysis device comprising:
 a first processor applying a first noise step to an original data stream with an original character to generate a first data stream with a first character; and   a second processor applying a second noise step to the first data stream to generate a second data stream with a second character, wherein a first variation between the original character and the first character is greater than a second variation between the original character and the second character.   
     
     
         7 . The data collection and analysis device of  claim 6 , further comprising:
 a true random number generator generating a first random number set, a second random number set, and a third random number set;   wherein the first processor applies a permanent randomized response to the original data stream based on the first random number set to generate a temporal data stream, and applies an instantaneous randomized response to the temporal data stream based on the second random number set to generate the first data stream.   
     
     
         8 . The data collection and analysis device of  claim 7 , wherein the second processor applies a synthetic randomized response to the first data stream based on the third random number set to generate the second data stream. 
     
     
         9 . The data collection and analysis device of  claim 6 , wherein identification information in the original data stream is de-identified after the first processor applies the first noise step to the original data stream. 
     
     
         10 . The data collection and analysis device of  claim 6 , further comprising:
 a pre-processor receiving an input data stream and utilizing Hash encoding to the input data stream to generate the original data stream with the original character; and   an output circuit outputting the second data stream.   
     
     
         11 . A data collection and analysis device comprising:
 a true random number generator generating a plurality of random numbers without the need of a seed; and   a processor unit, based on the plurality of random numbers, de-identifying identification information in an original data stream with an original character and generating a second data stream with a second character;   wherein the second character is substantially similar to the original character.   
     
     
         12 . The data collection and analysis device of  claim 11 , further comprising:
 a pre-processor receiving an input data stream and utilizing Hash encoding to the input data stream to generate the original data stream with the original character; and   an output circuit outputting the second data stream to a remote server.   
     
     
         13 . The data collection and analysis device of  claim 11 , wherein the plurality of random numbers comprising a first random number set and a second random number set, and the processor unit comprising a first processor; wherein the first processor applies a permanent randomized response to the original data stream based on the first random number set to generate a temporal data stream, and the first processor further applies an instantaneous randomized response to the temporal data stream based on the second random number set to generate a first data stream with a first character. 
     
     
         14 . The data collection and analysis device of  claim 13 , wherein the plurality of random numbers further comprising a third random number set, and the processor unit further comprising a second processor; wherein the second processor applies a synthetic randomized response to the first data stream based on the third random number set to generate the second data stream with the second character. 
     
     
         15 . The data collection and analysis device of  claim 14 , wherein a first variation between the original character and the first character is greater than a second variation between the original character and the second character.