Eastman-kodak Company

Scott P MacKenzie

Paul W Jones

Robert J Zolla

Thomas F Powers

J Allen Heath

Nelson Adrian Blish

John A Heath

An apparatus () forms a latent indicium onto a sensitized medium, using an area energy source () for applying a substantially uniform sensitizing energy over an area of the sensitized medium and a pixel exposure source () for applying radiant energy to expose a pattern of pixels () onto the area of the sensitized medium for forming the indicium.

Two-stage exposure device for watermarking film

A method for forming a pixel () having a predetermined density onto a sensitized recording medium moving in a length direction energizes a pixel exposure source () to begin exposure at the leading edge () of a pixel () and for a first predetermined time interval. The pixel exposure source () is de-energized for a period depending on the predetermined density and on media transport speed, then re-energized at the termination of the period. The pixel exposure source () is then de-energized at the end of a second predetermined time interval to terminate exposure at the trailing edge () of the pixel (), whereby spatial dimensions of each pixel () are maintained at variable transport speed or density of pixel ().

Printer for recording on a moving medium

The present invention provides a method for recording a watermark pattern on a color recording medium that forms an image using a number N of colorants, the method comprising the step of forming the watermark pattern using at least two colorants, but fewer than N colorants.

Motion picture watermarking using two color planes

A method is provided for applying a watermark pattern along a length of photosensitive medium, the photosensitive medium having a frame pitch in the length direction that is the sum of an image frame height plus an interframe distance. The method exposes watermark tiles contiguously along the length of the photosensitive medium, wherein each watermark tile has a height dimension that is an integral divisor of the frame pitch.

Growing community of inventors

Brockport, NY, United States of America

Scott P MacKenzie