AUTHENTICATION OF SIGNATURE USING ACOUSTIC WAVE ANALYSIS
First Claim
1. A method for processing signature information, comprising:
- at a sensor, detecting an acoustic signal generated at a first time during producing of a signature on an electronic device;
processing the acoustic signal to extract features of the acoustic signal; and
sending the extracted features as reference information for storage in association with the signature or a signer of the signature.
2 Assignments
0 Petitions
Accused Products
Abstract
Embodiments relate to capturing an acoustic signal generated when generating a pattern of movement for authentication of a user (e.g., signing on a touchscreen for authentication of a signature). In addition to or in lieu of a digital image of the signature, the captured acoustic signal is used as information for authenticating the signature. To capture the acoustic signals, an electronic device includes a sensor for detecting the vibration on the touchscreen. During an initial registration process, the signal from the sensor is processed and stored for use as reference information. Subsequently received signals from the sensor are compared with the reference information to identify a signer or authenticate the signature.
38 Citations
20 Claims
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1. A method for processing signature information, comprising:
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at a sensor, detecting an acoustic signal generated at a first time during producing of a signature on an electronic device; processing the acoustic signal to extract features of the acoustic signal; and sending the extracted features as reference information for storage in association with the signature or a signer of the signature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic device comprising:
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a surface configured to receive touch and motion representing a signature; a sensor attached to the surface and configured to detect an acoustic signal generated at first time during which the touch and motion is being received on the surface; and a processing module operably coupled to the sensor to receive the acoustic signal from the sensor, the processing module configured to extract features of the acoustic signal for storage as reference information. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An electronic device comprising:
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a device interface configured to receive reference information generated at a first time based on reference features extracted from an acoustic signal captured during producing of a signature on another electronic device by a first user; a surface configured to receive touch and motion representing a signature by a second user; a sensor attached to the surface and configured to detect an acoustic signal generated at a second time subsequent to the first time during which the touch and motion by the second user is being received on the surface; and a processing module operably coupled to the sensor to receive the acoustic signal from the sensor, the processing module configured to extract comparison features of the acoustic signal for comparison with the reference information. - View Dependent Claims (19)
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20. A non-transitory computer readable storage medium storing instructions thereon, the instructions when executed by a processor causing the processor to:
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detect an acoustic signal generated at a first time during producing of a signature on an electronic device; process the acoustic signal to extract features of the acoustic signal; and send the extracted features as reference information for storage in association with the signature or a signer of the signature.
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Specification