Patent · US Active

Method and apparatus for performing synchronised audio and video presentation

US8005337B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Peter Steinborn · Neuwied, DE
Mario Sieck · Hankensbüttel, DE

Key dates

Filing date	Nov 22, 2004
Grant date	Aug 23, 2011
Priority date	—
Expiry date	Oct 31, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/439
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A synchronisation of the presentation or reproduction of video data with audio data is described, which data each are processed on two non-synchronised computers. An MPEG-type stream is separated into video data and audio data, wherein the video data is processed utilising the first processing means and the audio data is timestamped and forwarded to the second processing means which compares the received time-stamp to the local time. The transmission time periods of sending audio data packets from the first processing means to the second processing means are calculated based on the local system time and timestamp is inserted into the audio data packets. Subsequently, synchronised audio and video presentation or reproduction is performed.

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