Eastman Kodak patented a digital printing system with in-track position corrections. The system includes printing subsystems, data processing system, and digital memory storing a non-linear correction function for printing digital images with anti-aliasing pixels. The correction function specifies position corrections based on cross-track position. GlobalData’s report on Eastman Kodak gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Eastman Kodak, was a key innovation area identified from patents. Eastman Kodak's grant share as of February 2024 was 83%. Grant share is based on the ratio of number of grants to total number of patents.

Digital printing system with in-track position corrections

Source: United States Patent and Trademark Office (USPTO). Credit: Eastman Kodak Co

A recently granted patent (Publication Number: US11914319B1) discloses a digital printing system that incorporates in-track position corrections to enhance the quality of printed digital images. The system includes one or more printing subsystems, each equipped with a linear printhead containing an array of light sources for exposing a photosensitive medium. A data processing system and digital memory store a representation of an in-track position correction function, which specifies corrections to be applied based on cross-track position. The system processes digital image data, corrects image lines using the stored correction function, and adds anti-aliasing pixels at specific positions to improve image quality.

The patent further details the modification of corrected image lines by adjusting pixel values, providing anti-aliasing pixels only along edges with significant contrast, and determining inside corner pixels based on specific criteria. The system also includes a method for determining the in-track position correction function through a series of steps involving printing a test target, capturing an image, and analyzing alignment marks. Additionally, the patent describes the use of LED light sources in the linear printhead, the inclusion of a resize factor in image resampling, and the integration of a digital image capture system within the printing system for image analysis purposes. Overall, the digital printing system aims to optimize image quality through precise in-track position corrections and anti-aliasing techniques.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.