Sony Corporation

Saturn Licensing LLC

Sony Group Corporation

Sony Electronics Inc

Sony Interactive Entertainment Inc.

Sony Computer Entertainment Inc.

Other

Ikuo Tsukagoshi

Kenichi Imai

Takenori Ohshima

Masaru Masuda

Yuichi Nishimori

Jason Naxin Wang

Masahito Yamane

Toru Chinen

Ming-Chang Liu

Koichi Goto

Shinji Takada

Yoichiro Sako

Kazuyuki Sakoda

Naohisa Kitazato

Kohei Asada

Akira Tange

Mark Eyer

Yasushi Miyajima

Seiji Wada

Hiroshi Mukawa

Motoyuki Takai

Takao Tanikame

Tatsuya Narahara

Hiroaki Ogawa

Klaus Zimmermann

Masashi Takeda

Kazuhiko Takabayashi

Ichigo Hayakawa

Kazuhide Kemmochi

Wei-Jen Li

Hua Chen

Milan Mehta

Yasuaki Yamagishi

Shirish C Gadre

Noriyuki Yamashita

Markus H Veltman

Michael Alan Kutner

Tsutomu Inui

Pattabiraman Subramanian

Kikuo Yamamoto

Shoji Ichiki

Moriyuki Yamashita

Naohiko Kawase

Chungkuang P Chu

Display with an appropriate luminance dynamic range is realizable on a receiving side. A gamma curve is applied to input video data having a level range from 0% to 100%*N (N: a number larger than 1) to obtain transmission video data. This transmission video data is transmitted together with auxiliary information used for converting a high-luminance level on the receiving side. A high-level side level range of the transmission video data is converted on the receiving side such that a maximum level becomes a predetermined level based on the auxiliary information received together with the transmission video data.

Transmitting device, transmitting method, receiving device, and receiving method

To reduce a processing load at a reception side in a case where a plurality kinds of audio data items are transmitted. A container in a predetermined format having a predetermined number of audio streams including coded data items of a plurality of groups is transmitted. For example, the coded data items of the plurality of groups include either or both of channel coded data items and object coded data items. Attribute information indicating respective attributes of the coded data items of the plurality of groups is inserted into a layer of the container and/or a layer of an audio stream. For example, stream correspondence relation information indicating which audio stream includes each of the coded data items of the plurality of groups is further inserted.

Transmission apparatus, transmission method, reception apparatus and reception method for transmitting a plurality of types of audio data items

The present technology reduces a process load in a reception side when a plurality of types of audi data is transmitted. A metafile having meta information used to acquire, in a reception device, a predetermined number of audio streams including a plurality of groups of encoded data is transmitted. To the metafile, attribute information indicating each attribute of the encoded data of the plurality of groups is inserted. For example, to the metafile, stream correspondence relation information indicating in which audio stream the encoded data of the plurality of groups is included respectively is further inserted.

Transmission device, transmission method, reception device, and reception method

To perform favorable decoding processing on the receiver side. By an image coding unit, image data of each picture constituting moving image data is classified into a plurality of hierarchies, the image data of the picture in each of the classified hierarchies is coded, the plurality of hierarchies is divided into a predetermined number of hierarchy sets, and a predetermined number of video streams having the coded image data of the picture in each of the divided hierarchy sets is generated. In this case, coding is performed so that a decoding interval of at least the coded image data of the picture in the lowest hierarchy set is a regural interval. By a transmission unit, a container including the generated predetermined number of video streams in a predetermined format is transmitted.

Coding apparatus, coding method, transmission apparatus, and reception apparatus

It is possible to enable a reception side to easily recognize that metadata is inserted into an audio stream. A metafile including meta information for acquiring an audio stream into which metadata is inserted through a reception device is transmitted. The identification information indicating that the metadata is in into the audio stream is inserted into the metafile. At the reception side, it is possible to easily recognize that the metadata is inserted into the audio stream based on the identification information inserted into the metafile.

Transmission device, transmission method, reception device, and a reception method

Convenience is achieved in performing processing depending on decoding capability in a reception side. High-frame-rate ultra-high-definition image data is processed to obtain first image data for acquisition of a base-frame-rate high-definition image, second image data for acquisition of a high-frame-rate high-definition image by being used with the first image data, third image data for acquisition of a base-frame-rate ultra-high-definition image by being used with the first image data, and fourth image data for acquisition of a high-frame-rate ultra-high definition image by being used with the first to third image data. A container is transmitted including a predetermined number of video streams including encoded image data of the first to fourth image data. Information is inserted into the container, the information corresponding to information that is inserted into each of the predetermined number of video streams and associated with image data included in the video streams.

Transmission device, transmission method, reception device and reception method

A transmission apparatus includes a transmission unit. The transmission unit transmits a packet including divided image data as payload data, the divided image data being obtained by dividing image data having a predetermined frame frequency into a predetermined number of frames, the image data having the predetermined frame frequency being subjected to mixing processing for each frame, image data of a previous frame and/or a subsequent frame being selectively used in the mixing processing, and further transmits metadata including information regarding the mixing processing in association with image data of each frame.

Transmission apparatus, transmission method, encoding apparatus, encoding method, reception apparatus, and reception method

High frame rate moving image data is satisfactorily transmitted. Mixing processing is performed in units of two temporally consecutive pictures in predetermined frame rate image data, and base frame rate image data is obtained. Image data of one picture in units of the two temporally consecutive pictures is extracted, and high frame rate enhanced frame image data is obtained. Prediction encoding processing of base frame rate image data is performed to the base frame rate image data, and a base stream is obtained. Prediction encoding processing with respect to the base frame rate image data is performed to the high frame rate enhanced frame image data, and an enhanced stream is obtained. A predetermined format container is transmitted including the base stream and the enhanced stream.

The present invention enables a receiving side to easily recognize a high-quality format corresponding to encoded image data included in an extended video stream. Two video streams including a basic video stream including encoded image data of basic format image data, and an extended video stream including encoded image data of high-quality format image data of one type selected from a plurality of types are generated. A container of a predetermined format including the basic video stream and the extended video stream is transmitted. Information indicating a high-quality format corresponding to the encoded image data included in the extended video stream is inserted into the extended video stream and/or the container.

To provide a video display system for allowing a user to look at and listen to video and sound on various means. A video display system has a video display device and a portable video display device, connected to each other for communication. The video display device produces own device video data and own device sound data to be displayed and reproduced, respectively, on the video display device; displays the own device video data and reproduces the own device sound data; encodes these data into a data format which the portable video display device is able to handle, to thereby produce other device video data and other device sound data; and sends to the portable video display device. The portable video display device receives these data, and decodes and displays the other device video data, and decodes and reproduces the other device sound data.

Video display system, video display device, its control method, and information storage medium

The present technology ensures that electrooptical conversion processing for transmission video data obtained using an HDR optoelectrical conversion characteristic is favorably carried out at a receiving side. The transmission video data is obtained by performing high dynamic range optoelectrical conversion on high dynamic range video data. A video stream is obtained by applying encoding processing to this transmission video data. A container in a predetermined format including this video stream is transmitted. Meta information indicating an electrooptical conversion characteristic corresponding to a high dynamic range optoelectrical conversion characteristic is inserted into a parameter set field in the video stream.

A processing load at a receiving side is reduced in a case where a plurality of classes of audio data is transmitted. A predetermined number of audio streams including coded data of a plurality of groups is generated and a container of a predetermined format having this predetermined number of audio streams is transmitted. Command information for creating a command specifying a group to be decoded from among the plurality of groups is inserted into the container and/or the audio stream. For example, a command insertion area for the receiving side to insert a command for specifying a group to be decoded is provided in at least one audio stream among the predetermined number of audio streams.

High frame rate image data having backward compatibility is favorably transmitted. Image data of each picture of a base layer included in a base stream sent from a transmission side has been subjected to a mixing process in a linear space or a non-linear space. On a reception side, the inverse mixing process can be performed appropriately by performing in a corresponding space on the basis of processing space information indicating whether or not the mixing process is performed in the linear space or the non-linear space.

Reception device, reception method, transmission device, and transmission method

To enable a set of media access control to be favorably performed on the reception side. A container having a predetermined format is transmitted, the container including a media stream. A predetermined number of pieces of media access information associated for the set of media access control, are sequentially inserted into a layer of the media stream or a layer of the container. For example, the media access information includes identification information for making a distinction from different media access information and identification information for making an association with the different media access information.

Transmission device, transmission method, media processing device, media processing method, and reception device

Visual safety is ensured when image switching takes place. When an image is switched by nonlinear reproduction, a display property is kept switched, during a transition display period, to a transition display property with a brightness level kept lower than a normal level, on the basis of pixel statistical information regarding the image. For example, an electro-optic conversion property is controlled to a transition property or the brightness level of a backlight is suppressed.

Image processing apparatus, image processing method, transmission apparatus, transmission method, and reception apparatus

Growing community of inventors

Tokyo, Japan

Ikuo Tsukagoshi