Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Non-linear contrast control apparatus with pixel distribution measurement for video display system

Non-linear contrast control apparatus with pixel distribution measurement for video display system

US Patent 5422680 · Granted Jun 6, 1995

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Robust biometric access control based on dynamic structural changes in tissue2022
3D dynamic structure estimation using synchronized images2021
Systems and methods of biometric analysis with adaptive trigger2019
Biometric enrollment systems and methods2019
Iris biometric recognition module and access control assembly2017
Iris biometric recognition module and access control assembly2017
Iris biometric matching system2017
Image sensor with integrated region of interest calculation for iris capture, au2016
Iris biometric matching system2015
Image sensor with integrated region of interest calculation for iris capture, au2015
Method of capturing image data for iris code based identification of vertebrates2014
Method of normalizing a digital image of an iris of an eye2014