Data Processing Apparatus and Method
First Claim
1. A method of providing process information for a number generation process which is operable to generate a number representative of an analogue data source, the method comprising the steps of:
- receiving analogue data representative of the analogue data source;
processing the received analogue data to form a first data set and a second data set;
generating error correction data associated with said first data set;
generating transform data for transforming said second data set into the error correction data; and
storing said transform data,the method further comprising repeating the generation and storage of transform data plural times, with the first data set of one time forming the analogue data for the next time.
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Accused Products
Abstract
A process for generating a number representative of an analogue data source (ADS) in which during enrolment a distinctive characteristic of the ADS is measured to obtain physical data (PD). Part of the PD is used to generate a physical value (PV) representative of the ADS. An error correction algorithm (ECA) is applied to the PV to generate error correction data (ECD), which is transformed, using another part of the PD, to generate transform data. During subsequent regeneration of the PV, the distinctive characteristic is re-measured to generate a new set of PD, and a PV is generated using the same part of the PD physical data as was used during enrolment. ECD is generated by transforming the transform data, using the same part of the PD as was used to transform the ECD during enrolment. The ECA uses the regenerated ECD to correct errors in the PV representative of the ADS.
14 Citations
22 Claims
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1. A method of providing process information for a number generation process which is operable to generate a number representative of an analogue data source, the method comprising the steps of:
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receiving analogue data representative of the analogue data source; processing the received analogue data to form a first data set and a second data set; generating error correction data associated with said first data set; generating transform data for transforming said second data set into the error correction data; and storing said transform data, the method further comprising repeating the generation and storage of transform data plural times, with the first data set of one time forming the analogue data for the next time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of generating a number representative of an analogue data source, the method comprising the steps of:
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receiving analogue data representative of the analogue data source; processing the received analogue data to form a first data set and a second data set; retrieving transform data from a data store; generating an intermediate number using the first data set; transforming the second data set into error correction data using the retrieved transform data; and
processing said intermediate number and said error correction data using an error correction algorithm to generate the number representative of the analogue source,the method further comprising generating plural numbers representative of the analogue data source by using each generated number as the analogue data from which another representative number is generated, and in each number generation operation retrieving associated transform data. - View Dependent Claims (10, 11, 12)
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13. An apparatus for providing process information for a number generation process which is operable to generate a number representative of an analogue data source, the apparatus comprising:
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a receiver operable to receive analogue data representative of the analogue data source; a processor operable to process the received analogue data to form a first data set and a second data set; an error correction data generator operable to generate error correction data associated with said first data set; a transform data generator operable to generate transform data for transforming said second data set into the error correction data; and an outputter operable to output the transform, data to a storage device, the apparatus further comprising means for repeating the generation and storage of transform data plural times, with the first data set of one time forming the analogue data for the next time. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An apparatus for of generating a number representative of an analogue data source, the apparatus comprising:
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a receiver operable to receive analogue data representative of the analogue data source; a processor operable to process the received analogue data to form a first data set and a second, data set; a data retriever operable to retrieve transform data from a data store; a number generator operable to generate an intermediate number using the first data set; a data transformer operable to transform the second data set into error correction data using the retrieved transform data; and an error corrector operable to process said intermediate number and said error correction data using an error correction algorithm to generate the number representative of the analogue source, wherein the data processor is operable to receive a generated number as a new set of analogue data in order to generate another representative number. - View Dependent Claims (20, 21, 22)
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Specification