Method and devices for the transfer of a data flow from a data source to a data sink

US7984205B2 · kind B2 · utility

Assignee

• Thomson Licensing · FR

Inventors

• Ingo Huetter · Pattensen, DE
• Michael Weber · Neu-Ulm, DE

Key dates

• Filing date: Oct 24, 2006
• Grant date: Jul 19, 2011
• Expiry date: Jun 27, 2027

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L65/65
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

In the transfer of AV data flows, especially in a network environment, a delayed transition from one operating mode to the other operating mode will be possible when changing the operating mode from e.g. normal replay to fast forward search. This is due to the fact that—in the transfer from data source to data sink different buffer memory stages must be passed before the transferred data finally come to decoding. When the request for changing the operating mode comes, the data already present in the buffer memories must first be processed before the actually requested new data come to be decoded. For the solution of the problem described, it is suggested according to the invention that after the request of changing the operating mode the undesirable data in the buffer memories are quickly eliminated through suitable measures so that the desired data can then be decoded faster. To do that, an identifier for the new operating mode is inserted in the data flow on the part of the data source device. The decoder driver of the decoder in the data sink device will search for the inserted identifier in the data flow and reject all data packets which are not combined with this identifier. T…