Title:
メディア・データのパケット交換伝送方法およびメディア・データの処理方法
Document Type and Number:
Japanese Patent JP2010517395
Kind Code:
A
Abstract:
The invention relates to a method for packet-switching transmission of media data and a device for processing media data. Media data may be video, audio or text data, or other data. Transmission of the data is usually effected according to a streaming method. The data is therein transmitted in packets and re-assembled in the receiving device. For Internet applications, the real-time transport protocol is very widely used in the transmission of data streams. However, this data transmission protocol does not enable a secure transmission which is based on a repetition of the defectively transmitted data. Sequence counters are used according to this protocol so that left-out data packets can be detected in the receiving device. According to the invention, it is provided that error information data is inserted in the destination media data record which is generated from the received data in the receiving device when, according to the transmission protocol, transmission errors are detected in the analysis of the data packets received. The transmission errors are then documented in the destination data record. The stored error information can be analyzed upon reproduction of the destination data record so that it can be evaluated, in particular, whether the recorded original data is so seriously defective that a new recording is inevitable. In particular, this is advantageous in video production where it is necessary to quickly evaluate whether a recorded film or video scene is of acceptable quality (if necessary, taking potential retouching into account) or whether it must be repeated and recorded again.
Inventors:
Glazer, frank
Aust, Andreas
Aust, Andreas
Application Number:
JP2009546754A
Publication Date:
May 20, 2010
Filing Date:
January 24, 2008
Export Citation:
Assignee:
Thomson Licensing
International Classes:
H04L1/00
Domestic Patent References:
| JP2001148837A | 2001-05-29 | |||
| JP2001346205A | 2001-12-14 | |||
| JP2003023413A | 2003-01-24 | |||
| JP2000115104A | 2000-04-21 | |||
| JP2004056393A | 2004-02-19 | |||
| JP2004537911A | 2004-12-16 | |||
| JP2001148837A | 2001-05-29 |
Foreign References:
| US6988238B1 | 2006-01-17 | |||
| US20040199463A1 | 2004-10-07 |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito