DEVICE AND METHOD FOR RECEIVING DIGITAL BROADCASTING, PROGRAM AND RECORDING MEDIUM

• Main Authors: SHIMADA MASAAKI, YAGI KOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 16.05.2016
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To adjust image quality of a video of a broadcast program with a small information amount while reproduction compatibility of the broadcast program is kept.SOLUTION: A broadcast stream including video information is received through a broadcast transmission line (BD)(12), and video additional information is acquired through a communication transmission line (NW) (13). Image quality of a video displayed on video display sections (21, 21c) is adjusted based on the video information, the video additional information and information showing display performance of the video display sections (21, 21c). Adjustment of the image quality is expansion of a dynamic range of luminance of the video, for example.SELECTED DRAWING: Figure 1 【課題】放送番組の再生互換性を保ちつつ、少ない情報量で放送番組の映像の画質調整を行うことを可能にする。【解決手段】放送伝送路（ＢＤ）を通じて映像情報を含む放送ストリームを受信する（１２）とともに、通信伝送路（ＮＷ）を通じて映像付加情報を取得し（１３）、映像情報と、映像付加情報と、映像表示部（２１、２１ｃ）の表示性能を示す情報とに基づいて、映像表示部（２１、２１ｃ）で表示される映像の画質を調整する。画質の調整は、例えば、映像の輝度のダイナミックレンジの拡張である。【選択図】図１