Patent · US Active

Method for seamless real-time splitting and concatenating of a data stream

US7480441B2 · kind B2 · utility

21Cited by

4References

11Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Wolfgang Klausberger · Hannover, DE
Meinolf Blawat · Hannover, DE
Stefan Kubsch · Hohnhorst, DE
Hui Li · Beijing, CN
Dietmar Hepper · Hannover, DE

Key dates

Filing date	Aug 18, 2004
Grant date	Jan 20, 2009
Priority date	—
Expiry date	Jan 17, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04N5/85
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

When recording packetized real-time streaming data, e.g. multimedia data, it is in general not possible to know in advance the size of the data stream, and thus the required storage area. Therefore the storage device may be full before the data stream is completely stored. The disclosed method for storing and retrieving the remaining part of the data stream on another storage device uses metadata tags (10,11) and data buffers (IB1,IB2) to split a data stream seamlessly into chunks while recording it, and distribute the chunks in real-time to different connected storage devices (D1,D2), so that the chunks can be seamlessly concatenated again in real-time for replaying the stream. The metadata tags (10,11) contain identifiers for the successive storage node (N2) and/or the preceding storage node (N1) and for the last stored application packet.

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