Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-09-05
2006-09-05
Rogers, Scott A. (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C700S175000, C702S035000, C073S659000
Reexamination Certificate
active
07102795
ABSTRACT:
In a method and apparatus for engraving printing cylinders in an electronic engraving machine, an engraving control signal is formed from an image signal that represents tonal values of cups to be engraved and from a periodic raster signal for generating a printing raster. An engraving stylus of an engraving element controlled by the engraving control signal engraves a printing form in the form of cups arranged in the printing raster in a rotating printing cylinder. For checking of the functionability of the engraving stylus, test cups are engraved simultaneously when engraving the printing form. A respective measurement interval is defined for selected test cups. The raster signal is respectively eliminated from the engraving control signal for the duration of the measurement interval, and the remaining engraving control signal is investigated for harmonics characteristic of damage to the engraving stylus. A control signal signalling damage to the engraving stylus is generated given the presence of the characteristic harmonics.
REFERENCES:
patent: 4087801 (1978-05-01), Noh
patent: 4413507 (1983-11-01), Drew et al.
patent: 5416597 (1995-05-01), Mubaslat
patent: 5737091 (1998-04-01), Holowko et al.
patent: 6556925 (2003-04-01), Mori et al.
patent: 23 36 089 (1975-02-01), None
patent: 25 08 734 (1976-08-01), None
patent: 197 22 996 (1998-03-01), None
patent: 197 23 002 (1998-03-01), None
patent: 198 05 197 (1999-08-01), None
patent: WO 99/51438 (1999-10-01), None
Hell Gravure Systems GmbH
Rogers Scott A.
Schiff & Hardin LLP
LandOfFree
Method for engraving printing cylinders does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for engraving printing cylinders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for engraving printing cylinders will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3594314