Granted Patent
Utility
US 6,738,162 · App. 09/457,325
Digital printer for avoiding moire patterns by using a dithering mask and angular rotation between print head and print medium to simulate analog printer halftoning of color images
Inventors:
Marco Martens, Ravishankar Rao, Gerhard Robert Thompson, Charles Tresser, Chai Wah Wu
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Dec 9, 1999
Inventors
Marco Martens
Ravishankar Rao
Gerhard Robert Thompson
Charles Tresser
Chai Wah Wu
Assignee (at issue)
International Business Machines Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.