Back to results
US 7,458,268 B2Granted
Live-scan ultrasonic four-finger planar imaging scanner
AssigneeUltra-Scan Corporation
InventorsJohn K. Schneider, Jack C. Kitchens, Stephen M. Gojevic
Life of this patent
Estimating the term…
Abstract
The invention includes a system and a method of scanning fingerprints. A system may include an imaging surface, an ultrasound transducer, a probe arm joined to the transducer, a driver capable of moving the pivot location linearly and the transducer arcuately, a measurer capable of measuring linear and arcuate positions of the transducer, and a coupler capable of coupling information corresponding to linear and arcuate positions of the transducer with information from the transducer.
Claims14
A fingerprint scanning system comprising:
- an imaging surface capable of receiving a finger;
- an ultrasound transducer capable of providing information corresponding to a fingerprint of the finger;
- a probe arm joined to the transducer, the probe arm having a pivot location;
- a driver capable of moving the pivot location linearly and the transducer arcuately;
- a measurer capable of measuring linear and arcuate positions of the transducer;
- a coupler capable of coupling the linear and arcuate positions of the transducer with information from the transducer;
- and
- a fluidic ultrasound transmission medium between the imaging surface and the transducer;
- a gas scavenging molecular sieve.
6 more elements
A method of scanning a fingerprint comprising:
- (A) receiving a finger on an imaging surface;
- (B) providing an ultrasonic transducer capable of providing information corresponding to a fingerprint of the finger;
- (C) recording a linear position of the ultrasonic transducer to provide a linear recording;
- (D) recording an arcuate position of the ultrasonic transducer to provide an arcuate recording;
- (E) sending an ultrasonic signal from the ultrasonic transducer through a fluidic ultrasound transmission medium toward the finger;
- (F) receiving a reflected ultrasonic signal at the ultrasonic transducer;
- (G) recording information about the reflected ultrasonic signal;
- (H) coupling the recorded signal information with the linear recording and the arcuate recording;
- (I) moving the ultrasonic transducer arcuately;
- (J) repeating steps D through H;
- (K) moving the ultrasonic transducer linearly;
- (L) repeating steps C through J;
- and
- (M) scavenging gas with a molecular sieve.
11 more elements
Dependencies are inferred from the claim text.