JP3191292U7

JP3191292U7 -

Info

Publication number: JP3191292U7
Application number: JP2014000649U
Authority: JP
Filing date: 2014-01-24
Publication date: 2015-11-05
Anticipated expiration: 2024-01-24

Description

本考案は、一枚の１２センチ・デジタル・ビデオディスクに、ＤＶＤ方式とブルーレイ方式で、同一コンテンツを“比較的長時間”収録できるようにしたものです。The present invention enables the same content to be recorded on a 12-cm digital video disc in a DVD format and a Blu-ray format for a "relatively long time".

本考案に先行して、一枚のディスクに同一コンテンツをハイブリッド記録するアイデアはあったが、そもそもＤＶＤとブルーレイでは容量に差があり、同じ記録面積に同一コンテンツをそのままハイブリッド記録するのは無駄が生じ、実用的でない。Prior to the present invention, there was an idea of hybrid recording of the same content on one disc, but in the first place there is a difference in capacity between DVD and Blu-ray, and it is wasteful to record the same content directly on the same recording area. Resulting and impractical.

特開２００９−００４０９４号の、一枚のディスクの内周と外周で記録面を分け、異なる信号フォーマットで収録時間が同じになるように同一コンテンツをハイブリッド記録する、という方法でＤＶＤとブルーレイの信号を記録すると、推定される収録時間は約８０分ずつで、この案のみでは長編ソフトに適さない（何か他のフォーマットとの組み合わせを想定したものでは？例えばＨＤ−ＤＶＤとＢｌｕ−ｒａｙとか）。Japanese Unexamined Patent Application Publication No. 2009-004094 describes a DVD and Blu-ray signal by dividing the recording surface on the inner and outer circumferences of a single disc and hybrid recording the same content so that the recording times are the same in different signal formats. The estimated recording time is about 80 minutes each, and this proposal alone is not suitable for feature-length software (assuming a combination with other formats? For example, HD-DVD and Blu-ray) .
特開２００６−１９０４１５号の、二層ディスクの各層で記録方式を分けると、どちらの層もＤＶＤの収録時間と同じ１２０分までしか収録できず、ブルーレイ記録層には余裕が出来てしまう。そのデッドスペースも有効活用できるのが本考案です。According to Japanese Patent Laid-Open No. 2006-190415, if the recording method is divided for each layer of the dual-layer disc, both layers can only record up to 120 minutes, which is the same as the DVD recording time, and there is room for the Blu-ray recording layer. The present invention can effectively utilize the dead space.

同じ収録時間なら、ブルーレイの方がＤＶＤより記録面積が少なくて済みます。For the same recording time, Blu-ray requires less recording area than DVD.
片面二層ディスクで、ブルーレイ記録層の余った面にＤＶＤ信号を記録し、ＤＶＤ記録層と内容が繋がるように収録すれば、同一コンテンツを、それぞれ約１６０分ずつ収録できる計算で、これなら長編ソフトにも対応でき、実用的です。With a single-sided dual-layer disc, if the DVD signal is recorded on the surplus surface of the Blu-ray recording layer and recorded so that the content is connected to the DVD recording layer, the same content can be recorded for about 160 minutes each. Compatible with software, practical.

ソフトメーカーの製造・流通コストの削減、消費者の利便性向上は明らかです。It is clear that software manufacturers can reduce manufacturing and distribution costs and improve consumer convenience.

正面図。Ａ．＝ブルーレイ記録面。Ｂ．＝ＤＶＤ記録面。Front view. A. = Blu-ray recording surface. B. = DVD recording surface. 断面図。Ｃ．＝ブルーレイ記録層。Ｄ．＝ＤＶＤ記録層。Sectional drawing. C. = Blu-ray recording layer. D. = DVD recording layer.

Claims

A single-sided dual-layer 12-centimeter digital video disc with one layer on the DVD recording layer and the other layer on the Blu-ray recording layer. In addition, a video disc for sale and rental that records the same content in a hybrid so that the recording time is the same.