Browse Prior Art Database

MPGE VIDEO-PLAYER WITH MULTIPLE OUTPUT PROCESSING

IP.com Disclosure Number: IPCOM000012996D
Publication Date: 2003-Jun-12
Document File: 2 page(s) / 9K

Publishing Venue

The IP.com Prior Art Database

Abstract

ID614951

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Research Disclosure

MPGE VIDEO-PLAYER WITH MULTIPLE OUTPUT PROCESSING

In video systems, a HDTV video stream on a disc is accompanied by multiple graphics overlay streams, for HD (High Definition, 16:9, 1080 x 1920 pixels) and lesser resolutions

respectively e.g. SD (Standard Definition, 4:3, 480 x 720 pixels). Furthermore the systems has a terminal to connect a HD display (16:9) and a terminal to connect a SD display, e.g. a normal Television with 4:3 format. For user convenience there should always be a signal at any of the outputs. The apparatus could read both overlay streams from the disc to supply the signal to the corresponding HD and SD outputs. However, the band width of the reading


means and or decoder could be a bottle neck. If the band width is not sufficient only one of the overlay streams could be read and consequently supplied to one of the outputs. In this event the user will see only on one of the outputs (HD or SD) the overlay stream. This is confusing for the user. Therefore, it is proposed to add the functionality to down scale the HD overlay stream to obtain a SD overlay and to up scale the SD overlay stream to obtain a HD

overlay. A manual or automatic choice can be made to either using the HD graphics overlay stream on HD output and the same graphics but downscaled on the SD output, or reversely use the SD graphics overlay stream on the SD output and the same graphics but up scaled on the HD ou...