Patent · US Active

Method and peer network for ascertaining the peer network originating station for a file

US9160793B2 · kind B2 · utility

7Cited by

8References

19Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Gero Bäse · Birkenfeld, DE
Robert Kutka · Geltendorf, DE
Jürgen Pandel · Feldkirchen-Westerham, DE

Key dates

Filing date	Oct 23, 2006
Grant date	Oct 13, 2015
Priority date	—
Expiry date	Sep 1, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04L63/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Files which are available for dissemination in a controlled peer-to-peer network are provided with a watermark comprising a large number of watermark elements. Upon download, the composition of the parts of the file which are obtained from a plurality of source stations provides a new watermark which can clearly be associated with the target station. By storing information about forwarded watermark elements of a network server, it is possible to reconstruct for each file the network station from which this file originates.

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