Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Nippon Hoso' Kyokai

Other

Hiromu Kitaura

Mitsuaki Oshima

Hideshi Ishihara

Hideki Fukuda

Toshiyuki Kawara

Takashi Inoue

Tokikazu Matsumoto

Nobuyuki Ogawa

Yuichi Ninomiya

Yoshimichi Ohtsuka

Yoshinori Izumi

Fumiaki Koga

Satoshi Kondo

Kazuhisa Yamamoto

Shigeru Furumiya

Yasuo Kitaoka

Yoshinari Takemura

Hidetoshi Takeda

Mitsuo Isobe

Yoshio Hirauchi

Hiroyuki Uenaka

Akiyoshi Maeda

Ken Ichi Kasazumi

Isao Kawahara

Katsuhiko Yamamoto

Kunihiko Hontani

Yoshitaka Mitsui

Yoshitaka Mitui

Michio Nakamura

Hideki Matsushita Electric Industrial Co Fukuda

A high resolution video signal is divided by video division means into a main signal and a sub signal, and the main signal and the sub signal are MPEG-encoded. The stream of the main signal and the stream of the sub signal are divided into 1 GPO or more of frames. First interleave blocks each including 1 GOP or more of the stream of the main signal and second interleave blocks each including 1 GOP or more of the stream of the sub signal are recorded on an optical disk. A high resolution reproduction apparatus reproduces both the first and second interleave blocks to obtain a high resolution video output. A non-high quality picture reproduction apparatus reproduces only the first or second interleave blocks to obtain a standard resolution video output.

Optical disk for high resolution and general video recording, optical disk reproduction apparatus, optical disk recording apparatus, and reproduction control information generation apparatus

The present invention has an objective of providing an optical disk having a high resolution picture and a system for reproducing data on the optical disk, which are compatible with a conventional system for reproducing an ordinary resolution picture. A high resolution signal is divided into a main signal and a sub signal by picture division means and MPEG-encoded. The main signal and the sub signal are divided into frames each having 1 GOP or more. The resultant first interleave blockand second interleave blockare recorded alternately on an optical disk. A high resolution reproduction apparatus reproduced both the first and second interleave blocks, so that a high resolution picture is obtained. A non-high resolution reproduction apparatus reproduces only the first or second interleave block, so that an ordinary resolution picture.

Optical disk for high resolution and three-dimensional video recording, optical disk reproduction apparatus and optical disk recording apparatus

A high resolution video signal is divided by video division means into a main signal and a sub signal, and the main signal and the sub signal are MPEG-encoded. The stream of the main signal and the stream of the sub signal are divided into 1 GOP or more of frames. First interleave blocks each including 1 GOP or more of the stream of the main signal and second interleave blocks each including 1 GOP or more of the stream of the sub signal are recorded on an optical disk. A high resolution reproduction apparatus reproduces both the first and second interleave blocks to obtain a high resolution video output. A non-high quality picture reproduction apparatus reproduces only the first or second interleave blocks to obtain a standard resolution video output.

The present invention has an objective of realizing compatibility of an optical disk having a high resolution video signal recorded thereon and a system for reproducing the optical disk, with a conventional system for producing a standard resolution video signal. A high resolution video signal is divided by video division means into a main signal and a sub signal, and the main signal and the sub signal are MPEG-encoded. The stream of the main signal and the stream of the sub signal are divided into 1 GOP or more of frames. First interleave blockseach including 1 GOP or more of the stream of the main signal and second interleave blockseach including 1 GOP or more of the stream of the sub signal are recorded on an optical disk. A high resolution reproduction apparatus reproduces both the first and second interleave blocks to obtain a high resolution video output. A non-high quality picture reproduction apparatus reproduces only the first or second interleave blocks to obtain a standard resolution video output.

An image display device and an image display system which can establish visible light communication without interfering with an image displayed at a predetermined frame rate are provided. A controller controls a spatial light modulator in accordance with an image signal to display the image, and also modulates an intensity of a visible light output from a backlight with a frequency higher than the frame rate of the image signal to have the visible light output from the backlight carry additional information. A light receiver receives the visible light and demodulates to extract the additional information. An additional information generator outputs the additional information.

Image display device and image display system

An image display device and an image display system which can establish visible light communication without interfering with an image displayed at a predetermined frame rate are provided. A controllercontrols a spatial light modulator in accordance with an image signal to display the image, and also modulates an intensity of a visible light output from a backlightwith a frequency higher than the frame rate of the image signal to have the visible light output from the backlightcarry additional information. A light receiverreceives the visible light and demodulates to extract the additional information. An additional information generatoroutputs the additional information.

Optical disk for high resolution and three-dimensional video recording, optical disk reproduction apparatus, and optical disk recording apparatus

Growing community of inventors

Osaka, Japan

Hiromu Kitaura