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Abstract

Methods and apparatuses for authenticating a biometric scanner, such as area type finger print scanners, involves estimating unique intrinsic characteristics of the scanner (scanner pattern), that are permanent over time, and can identify a scanner even among scanners of the same manufacturer and model. Image processing and analysis are used to extract a scanner pattern from images acquired with the scanner.

Abstract

Methods and apparatuses for authenticating a biometric scanner, such as swipe type finger print scanners, involves estimating unique intrinsic characteristics of the scanner (scanner pattern), that are permanent over time, and can identify a scanner even among scanners of the same manufacturer and model. Image processing and analysis are used to extract a scanner pattern from images acquired with the scanner.

Abstract

Methods and systems involving image processing extract from an image and estimate unique intrinsic characteristics (scanner pattern) of a biometric scanner, such as area type fingerprint scanner. The scanner pattern is permanent over time, can identify a scanner even among scanners of the same manufacturer and model, and can be used to verify if a scanner acquired an image is the same as the scanner used for biometric enrollment, i.e., to authenticate the scanner and prevent security attacks on it.

Abstract

A method is provided for generating a graph data representation having a plurality of nodes corresponding to respective systems engineering requirements. The method includes accessing a first data representation of a collection of systems requirements and relationships therebetween and generating a second data representation of the collection of systems requirements.

Abstract

A parallel dilating-filters switched-capacitor filter bank is described in simulation of the cochlea. Area-saving is achieved by filter-sharing, effective sum-gain amplifier designs, and using area efficient nth-order filter designs, and in particular using a biquadratic filter design using charge-differencing. The structure is easily expandable to include more channels by extending with additional filters and output amplifiers, or by using several chips with different sampling frequencies in parallel connection.

Abstract

An audio signal representative of an acoustic signal is provided to an auditory model. The auditory model produces a high-dimensional feature set based on physiological responses, as simulated by the auditory model, to the acoustic signal. A multidimensional analyzer orthogonalizes and truncates the feature set based on contributions by components of the orthogonal set to a cortical representation of the acoustic signal. The truncated feature set is then provided to classifier, where a predetermined sound is discriminated from the acoustic signal.

Method and apparatus for authenticating area biometric scanners

Abstract

Method and apparatus for authenticating swipe biometric scanners

Abstract

Method and apparatus for authenticating biometric scanners

Abstract

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Tree-to-graph folding procedure for systems engineering requirements

Abstract

Cochlear Filter Bank with Switched Capacitor Circuits

Abstract

Discrimination of components of audio signals based on multiscale spectro-temporal modulations

Abstract

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