Biometric password security
AssigneeLenovo (Singapore) Pte. Ltd.
InventorsJohn Weldon Nicholson, Steven Richard Perrin
Life of this patent
Estimating the term…
Abstract
A system includes a user speech profile stored on a computer readable storage device, the speech profile containing a plurality of phonemes with user identifying characteristics for the phonemes, and a speech processor coupled to access the speech profile to generate a phrase containing user distinguishing phonemes based on a difference between the user identifying characteristics for such phonemes and average user identifying characteristics, such that the phrase has discriminability from other users. The speech processor may also or alternatively select the phrase as a function of ambient noise.
Claims19
A system comprising:
- a user speech profile stored on a computer readable storage device, the speech profile containing a plurality of phonemes with user identifying characteristics for the phonemes, wherein the identifying characteristic comprise a representation of the amount of pronunciation difference for each of the plurality of phonemes from an average user;
- and
- a speech processor coupled to access the speech profile and generate a phrase containing user distinguishing phonemes based on the pronunciation difference between the user identifying characteristics for such phonemes and average user identifying characteristics, such that the phrase has discriminability from other users wherein the speech processor generates the phrase by searching for a phrase in a library that contains user distinguishing phonemes, wherein a user distinguishing phoneme is based on pronunciation of a phoneme by a user differing from the way most other users pronounce the phoneme and wherein such distinguishing phonemes have an associated score indicative of a magnitude by which such pronunciation differs and wherein the associated score is adjusted based on a difference of the pronunciation from ambient noise, resulting in a different generated phrase in the presence of the ambient noise.
A system comprising:
- an audio input to receive speech from a user, the speech including ambient noise proximate the user;
- a speech processor coupled to the audio input to generate a phrase containing user distinguishing phonemes as a function of an associated score indicative of a magnitude by which pronunciation of the distinguishing phonemes differs from that of an average user, wherein the associated score includes an ambient noise score such that the phrase has discriminability from the ambient noise, wherein the speech processor generates the phrase by searching for a phrase in a library that contains user distinguishing phonemes, and wherein the associated score is adjusted based on a difference of the pronunciation from ambient noise, resulting in a different generated phase in the presence of the ambient noise.
A method comprising:
- receiving a speech audio input from a user, the speech including ambient noise signal proximate the user;
- and
- generating a phrase containing user distinguishing phonemes by a speech processor coupled to the audio input, as a function of an associated score indicative of a magnitude by which pronunciation of the distinguishing phonemes differs from that of an average user, wherein the associated score includes an ambient noise score such that the phrase has discriminability from the ambient noise, wherein the speech processor generates the phrase by searching for a phrase in a library that contains user distinguishing phonemes, and wherein the ambient noise score results in a generation of a different phrase in the presence of the ambient noise.
Dependencies are inferred from the claim text.