Patent ID: 9367776
Filing Date: 2016-06-14
CPC Classification: G06F,G06K,H04N

Claim Text:
1. A method, comprising: receiving a print job for printing on a particular printer a page having page content; generating a log of the print job, the log identifying a user from whom the print job was received, the particular printer on which the print job is to be printed, a date at which the print job was received, and a computing device on which the user generated the print job; encoding the log using an input image to produce a data-bearing halftone image; merging the data-bearing halftone image with the page content; and printing using the particular printer the merged data-bearing halftone image and page content to produce a printed document from which identification of the user, identification of the particular printer, the date, and identification of the computing device are retrievable to trace the printed document.