Sony Corporation

Takehiko Nakano

Hisato Shima

Makoto Sato

Yoshio Osakabe

Naofumi Yanagihara

Kazuhiko Takabayashi

Teruhiko Suzuki

Tomoyuki Asano

Yoshitomo Osawa

Hiroyuki Suzuki

Gen Ichimura

Mitsuhiro Hirabayashi

Ryuji Ishiguro

Ichiro Hamada

Mari Horiguchi

Mitsuru Katsumata

Junji Kato

Yumiko Ohnuki

Tatsuya Igarashi

Hajime Inoue

Noriyuki Yamamoto

Satoshi Tsujii

Yasuaki Honda

Sadaharu Sato

Yasushi Minoya

Harumi Kawamura

Teruhiko Kori

Teruyoshi Komuro

Yukihiko Aoki

Masao Mizutani

Kouji Ogawa

Michio Miyano

Mariko Kitajima

Hirofumi Shimada

Toshiharu Fukui

Yuta Murata

Atsuko Ogasawara

An information processing apparatus for processing profile identification information of content is provided. The information processing apparatus includes a storage unit configured to store profile identification information in which information indicating a plurality of profile elements regarding content is connected and a transmission unit configured to send the profile identification information to another device. The profile identification information includes a profile element regarding a container format of content, a profile element regarding a protection format applied to content, and a profile element regarding an encoding format of content, and at least one thereof contains a nested profile element describing classification of a profile element or other supplemental information.

Information processing apparatus and information processing method for processing profile identification information of content

Captured images acquired by a plurality of imaging units are output to a captured image combining unit, which generates a composite image by joining the captured images in accordance with composite setting information generated by a composite setting information generation unit. A specific region information generation unit generates specific region information indicating the specific region corresponding to a specific imaging region in the composite image. In accordance with the specific region information, the captured image combining unit can easily perform an invalidation or emphasizing process, for example, on the image corresponding to the specific imaging region. The specific region information is also associated with the composite image generated by the captured image combining unit, so that reproduction control on the specific region corresponding to the specific imaging region in the composite image can be performed at the time of reproduction or the like of the composite image.

Information processing device, imaging apparatus, image reproduction apparatus, and method and program

The present disclosure relates to an image processing device and an image processing method capable of reducing a processing burden required at the time of generating a stream. A file generating unit sets a startcode and filler data for a file including a bitstream acquired by coding an image and performs control of the setting of the startcode and the filler data such that the startcode and the filler data that are set configure a file with a characteristic of a parameter managing a decoder buffer being maintained in media data of the file. The present disclosure, for example, can be applied to an image processing device.

Image processing device and method

Provided is an image encoding device including circuitry configured to generate a file with clean random access (CRA) information, which identifies CRA pictures in the image and which is set in a header region of a file that includes the header region and a data region within which a series of encoded image data associated with actual data of the image is stored, wherein the file is an MP4 format file, wherein the CRA information is sample group information grouping a plurality of CRA pictures, wherein the CRA information includes previous picture information used to identify a previous picture which is previous to each CRA picture in a presentation order and is not encoded normally at a time of random access to the CRA picture, and wherein output of the previous picture from the image encoding device is skipped based on the previous picture information.

Image decoding device, image decoding method, image encoding device, and image encoding method

The present disclosure relates to an information processing apparatus and an information processing method which facilitate reproduction of the data obtained by encrypting prepared multiple patterns regarding at least part of data of content with unique keys. An image acquiring unit receives an image file containing: encrypted data that is obtained by encrypting with unique keys multiple pieces of pattern data regarding forensic object data which is at least part of encoded image data of video content and that has an identical size; unencrypted data, of the encoded image data of video content, which is not encrypted with any one of the keys; size information that represents the size of the encrypted data; and position information that represents a position of the encrypted data in the file. The present disclosure can be applied to a video reproducing terminal and the like.

Information processing apparatus and information processing method

Provided is an image decoding device including an acquisition unit configured to acquire clean random access (CRA) information used to identify one or more CRA pictures in an image sequence inserted into a data region from a header region of a file format including the header region and the data region, a control unit configured to specify one CRA picture in the image sequence as a decoding start picture using the CRA information when an instruction of random access is detected, and a decoding unit configured to decode the image sequence from the decoding start picture specified by the control unit.

Image decoding device, and image decoding method, image encoding device, and image encoding method

The disclosure is directed to reduce a load of time and cost at the time of transition to a safer system in which an encryption scheme is newly set. By allowing a device of a transition step which implements a predetermined security reinforcement measure to handle high-value content only for a given system transition period, a problem of a time necessary for the transition can be avoided and the transition to the safer system can be performed smoothly. The device mentioned herein which implements the predetermined security reinforcement measure is, for example, a device which supports only an existing encryption algorithm and for which security of a weaker portion other than the encryption scheme is ensured.

Content transmission and reception device compatible to switch to a new encryption scheme

Content is transmitted within a range of the user's legitimate use while limiting the number of equipment to which the content is transmitted at the same time. A content using apparatus periodically transmits an exchange key and the corresponding key ID using a command. Only while receiving the key ID at predetermined reception cycles, a content providing apparatus maintains the corresponding exchange key. When not periodically receiving the key ID, the content providing apparatus destroys the corresponding exchange key. After that, when receiving a command including the key ID, the content providing apparatus returns a response including information indicating that the exchange key has become invalid.

Communication system, communication apparatus, communication method, and computer program

A communication apparatus includes a tuner, a content storage, and a controller that acquires content from the tuner, for one of providing the content to a terminal or recording the content to the content storage, and registers the terminal, in association with a registration date, to a home network. The terminal requests the content from outside the home network. The controller provides the content to the registered terminal based on a request, from the registered terminal, for the content, where the providing of the content to the registered terminal is based on the request, before an expiration date, for the content. The expiration date is based on the registration date of the registered terminal. The providing of the content to the registered terminal is restricted based on the request, after the expiration date, for the content.

Restriction of use that exceeds a personal use range when transmitting a content accumulated at home via an external network

The present invention relates to a telecommunications apparatus and a method, a storage medium, and a program for determining whether or not an other side communicating apparatus is near in a network. In a transmitting apparatus, a transmitting unit transmits a sending-message, and a control unit receives a response message to the sending-message, which includes acknowledgement information based on shared data and transmission information in the sending-message. The transmitting apparatus also includes a first judging unit that judges whether a response time of the acknowledgement message is less than a predetermined time. A receiving apparatus includes a generating unit that generates the acknowledgment information and transmits the response message to the transmitting apparatus.

Telecommunications apparatus and method, storage medium, and program

An electronic device that shares a secret key with another electronic device; receives a first response request transmitted from the another electronic device; generates a first response message based on the first response request and the secret key; receives a second response request transmitted from the another electronic device; and generates a second response message based on the second response request, the second response message transmitted to the another electronic device and including authentication data generated based on the secret key. The electronic device is authorized to receive data from the another electronic device when the authentication data matches expected authentication information generated by the another electronic device, and a predetermined time elapsed from a transmission of the second response request does not expire before the second response message is received by the another electronic device.

Information processing apparatus and method, recording medium and program

To securely transmit content through remote access via an external network, such as a WAN, while exceeding restrictions of an RTT and a TTL. A way of handling a flag for controlling remote access of content is explicitly defined, and an authentication method is explicitly defined when a content using device performs remote access. Thus, also in remote access, similarly to access of the related art in a household, a copyright protection environment of content based on the DTCP-IP is constructed.

Communication system, communication device, communication method, and computer program

A measurement to obtain an RTT to a receiving apparatus is performed by a relay apparatus that is disposed between a WAN and a home network and connects these two networks. That an RTT value is equal to or less than the threshold value is set as a content distribution condition from a transmitting apparatus, so that the same use environment as a system using current DLNA and DTCP-IP can be realized for content use in the home network. Thereby, unjust distribution of content is prevented while an authentication and key exchange procedure performed via an external network is allowed.

Communication apparatus, communication method, communication system, and computer program

The construction of a receiving apparatus for receiving a broadcast from a plurality of broadcasting providers is simplified. In a receiving apparatus for receiving a broadcast from a plurality of broadcasting providers, of the function blocks which constitute the receiving apparatus, a block used in common irrespective of the broadcasting provider is formed as a common block, and a block different from one broadcasting provider to another is formed as an independent block. These blocks are connected to each other through an IEEE1394 interface, and the common block is shared among the plurality of blocks which are not used in common, so that a receiving process is performed.

Growing community of inventors

Kanagawa, Japan

Takehiko Nakano