Screentone Systems Corporation, a wholly owned subsidiary of Acacia Research Corporation has entered into a settlement and license agreement with Electronics for Imaging (EFI), covering a patent portfolio directed to methods for digital halftone screening.  

This patented technology generally relates to methods for improving print image quality through the use of advanced signal processing techniques for transforming continuous toned images into high quality half toned images. This technology can be used in printing products such as high end laser printers and image setters.

Acacia Research’s subsidiaries develop, acquire, and license patented technologies. According to Acacia Research, its subsidiaries control over 100 patent portfolios, covering technologies used in a wide variety of industries.