Non-linear display brightness adjustment

H Pan - US Patent 10,264,266, 2019 - Google Patents
Display brightness adjustment apparatus and methods are described in which the average
brightness of a display may be scaled up or down using a non-linear function. When …

Multi-spectral ultrasonic imaging

IIJC Kitchens, JK Schneider, A Hinger… - US Patent …, 2019 - Google Patents
Abstract Systems and methods for multi-spectral ultrasonic imaging are disclosed. In one
embodiment, a finger is scanned at a plurality of ultrasonic scan frequencies. Each scan …

Fingerprint based smart phone user verification

JT Apostolos, W Mouyos, J Feng, DT Jeffrey - US Patent 9,754,149, 2017 - Google Patents
A touch screen, now incorporated in most smart phones, presents an effective and
transparent method to incorporate continuous active user verification schemes. The …

Method and system for fingerprint authentication

L Hamid - US Patent 7,272,247, 2007 - Google Patents
An improved method and system for reading and analyzing fingerprints is disclosed.
According to the present invention, fingerprints are scanned and then analyzed to determine …

Fingerprint based smart phone user verification

JT Apostolos, W Mouyos, J Feng, DT Jeffrey… - US Patent …, 2018 - Google Patents
A touchscreen, now incorporated in most smartphones, tablets, laptops, and similar devices,
presents an effective and transparent method to incorporate continuous active user …

Anti-spoofing protection for fingerprint controllers

A Ryshtun, V Kremin, O Rohozin, O Pirogov… - US Patent …, 2020 - Google Patents
(57) ABSTRACT A method for detecting fingerprint spoof objects includes detecting a
presence of the object at a fingerprint sensor and, in response to detecting the presence of …

Adaptive transfer function for video encoding and decoding

A Tourapis, D Singer - US Patent 10,812,801, 2020 - Google Patents
A video encoding and decoding system that implements an adaptive transfer function
method internally within the codec for signal representation. A focus dynamic range …

Virtual sensor network (VSN) based control system and method

AJ Grichnik, ML Kesse, A Jayachandran… - US Patent …, 2011 - Google Patents
(57) ABSTRACT A method for providing a virtual sensor netWork based sys tem. The
method may include obtaining project data descrip tive of a virtual sensor netWork to be …

Method and apparatus for classifying fingerprint image quality, and fingerprint image recognition system using the same

SB Pan, KI Chung, JH Moon, HI Kim - US Patent 7,711,158, 2010 - Google Patents
A method and apparatus for classifying fingerprint image quality and a fingerprint image
recognition system are provided. The method includes dividing a fingerprint image into a …

Electronic device and method for identifying falsification of biometric information

S Kim, K Seo, S Kyunghoon, R Bongjae… - US Patent …, 2020 - Google Patents
Provided are an electronic device and operation method thereof. The electronic device may
include: a display having a biometric sensing region; a biometric sensor disposed in the …