Patent · US Expired

Film scanner with film weaver correction facility

US7099055B1 · kind B1 · utility

2Cited by

2References

9Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Dieter Fischer · Steinfeld (Oldenburg), DE
Guido Kohlmeyer · Dortmund, DE
Thomas Leonard · Schwerte, DE

Key dates

Filing date	Apr 2, 1999
Grant date	Aug 29, 2006
Priority date	—
Expiry date	Apr 2, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04N5/253
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention realtes to a film scanner comprising a frame sensor (4) for picking up film frames, and a scanning device (13) at least for scanning a sprocket hole associated with a film frame. To determine the position of a sprocket hole, the film scanner comprises an evaluation device (25) which is provided to determine, in given areas, edge positions in a measuring frame supplied by the scanning device (13), form lines from the determined edge positions and determine the deviation of the center of the sprocket hole from a reference center.

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