Prysm, Inc.

Aprilis, Inc.

Christopher J Butler

Roger A Hajjar

John S Berg

David L Kent

Vincent Fedele

Mikhail Kaluzhny

Robert David Farraher

Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.

Servo feedback control based on designated scanning servo beam in scanning beam display systems with light-emitting screens

A method and apparatus for applying gradient edge detection to detect features in a biometric, such as a fingerprint, based on data representing an image of at least a portion of the biometric. The image is modeled as a function of the features. Data representing an image of the biometric is acquired, and features of the biometric are modeled for at least two resolutions. The method and apparatus improves analysis of both high-resolution images of biometrics of friction ridge containing skin that include resolved pores and lower resolution images of biometrics without resolved pores.

Method and apparatus for processing biometric images

Growing community of inventors

Acton, MA, United States of America

Christopher J Butler