Patent · US Expired

Reproducing a digital datastream containing program information for trick mode display

US7317866B1 · kind B1 · utility

4Cited by

6References

14Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Dirk Adolph · Ronnenberg, DE
Ralf Ostermann · Hannover, DE

Key dates

Filing date	Aug 15, 2000
Grant date	Jan 8, 2008
Priority date	—
Expiry date	May 22, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH04N9/8042
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In the case of trick mode decoding e.g. single step backward, it is necessary to decode any picture in the GOP independently from its location within the GOP. The inventive method for reproducing a digital data stream containing program information for trick mode display includes the following steps of decoded the incoming digital data stream in normal playmode. Creating a group of picture history during normal decoding and storing the history in a GOP history logger. For trick mode playback the digital data stream is edited using the GOP history to achieve the correct display order. For trick mode operation the edited bitstream is decoded and the target picture is displayed.

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