Patent · US Active

Method and device for the detection, at the correct time, of print marks located at regular intervals on a print web

US8085973B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Bernhard Dirsch · Erlangen, DE
Jörg Reh · Steinfeld (Oldenburg), DE

Key dates

Filing date	Jan 17, 2007
Grant date	Dec 27, 2011
Priority date	—
Expiry date	Mar 13, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65H2557/264
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

In a method and a device for the detection, at the correct time, of pressure marks situated at regular intervals on a print web, use is made of cameras, with a processing unit which is assigned to the camera. The activation of the camera is no longer triggered externally in order to detect the pressure marks. Instead, the drive control system, which actuates a movement of the print web, is connected to a bus to which the cameras and therefore the processing units are also connected. It is thereby possible for the drive control system to provide the processing units with process data which the processing units can use to calculate detection times. The activation of the camera takes place, on the basis of the calculation, automatically by means of the cameras with the processing unit itself.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.