Sony Corporation

Tsunemitsu Takase

Yoshikatsu Niwa

Shinya Masunaga

Tomoaki Takemura

Takashi Sasaki

Junichi Otani

Yoshiyasu Masuda

Akihiro Muto

Takafumi Azuma

Sou Fujii

Toshitaka Tamura

Yasushi Ikeda

Provided is an information processing apparatus including a recording unit, a chapter generation unit, a metadata acquisition unit, and a setting unit. The recording unit is configured to record a program. The chapter generation unit is configured to generate one or more chapter points based on a feature amount of the recorded program. The metadata acquisition unit is configured to acquire metadata on the program, that includes information on a start time and end time of each section sectioning the program. The setting unit is configured to allocate, when a section to be reproduced in the recorded program is designated, two different chapter points to a start time and end time of the section given by the acquired metadata, and set an interval between the two chapter points as a reproduction range of the designated section.

Information processing apparatus, information processing method, and program

The reproduction unit includes a reproducing unit that reproduces three-dimensional (3D) content recorded on a content recording medium, and a display control unit that displays a two-dimensional (2D) image of the 3D content on a parent screen having a predetermined size within a display screen when an interlace operation is executed with respect to a 3D image of the 3D content during reproduction by the reproducing unit, and displays the 3D image of the 3D content on a child screen having a size smaller than the predetermined size within the display screen.

Reproduction unit, reproduction method, and program

A reception apparatus receiving a stream delivered by multicast through a network includes: a stream receiving a stream of a first channel as a viewing stream and one or more streams of second channels as viewing candidate streams; a buffer section storing the streams of the channels received by the stream reception section; a reproduction processing section performing processing for viewing the stream stored as the viewing stream in the buffer section; and a channel causing, when an instruction to switch over, as a viewing target, from the first channel to any one of the second channels of the streams being received as the viewing candidate streams is input, the reproduction processing section to process as the viewing stream the stream corresponding to the second channel and stored in the buffer section, and the stream to receive the stream as the viewing stream.

Reception apparatus and method for reducing time delay in channel switching

A content reproduction apparatus is provided for reproducing variable-speed content. The content reproduction apparatus includes a data acquisition section for obtaining first streaming data and second streaming data, wherein the first streaming data includes first reproduction time data indicating a time to reproduce the first streaming data at a first streaming speed, and wherein the second streaming data includes second reproduction time data indicating a time to reproduce the second streaming data at a second streaming speed. The content reproduction apparatus also includes a reproduction time acquisition section for calculating a third reproduction time according to the first reproduction time data, the second reproduction time data, and a relationship between the first streaming speed and the second streaming speed, the third reproduction time being a time to reproduce the first streaming data at the first streaming speed followed by the second streaming data at the first streaming speed.

Content reproduction apparatus, content reproduction method, and program

A content reproduction method is provided, which acquires, from a data transmission apparatus, first streaming data that is used to play a content at a first speed, and records the first streaming data on a storage medium. The content reproduction method plays the content at the first speed, based on the stored first streaming data. The content reproduction method also starts acquisition of second streaming data in response to a varied-speed reproduction request for the content, wherein the second streaming data is used to play the content at a second speed, and plays the content at a transition speed based on the stored first streaming data, in response to the varied-speed reproduction request. The content reproduction method plays the content at the second speed based on the second streaming data, after the acquisition of the second streaming data progresses to a reproduction preparation complete state.

Content reproduction appratus, content reproduction method, and content reproduction system with varied-speed reproduction requests

When performing writing and/or reading of information to/from an optical disk provided with a wobble including time axis information, an occurrence of a reading error of the time axis information from the wobble is suppressed so that disabled reading of information from the optical disk and an occurrence of a writing error can be prevented. Evaluated parameters such as a CRC error rate of an ATIP signal, an FMDT jitter amount and a phase error between an ATIP synchronization signal and a frame synchronization signal of writing data are evaluated based on a range of set values. When the evaluated parameter is deviated from the range of set values, writing and reading speeds are changed, thereby increasing the reading accuracy of the wobble signal.

Optical writing device, optical reading device, recording-medium writing method, including wobble signal evaluation features

A content playback device has a processor, a memory, a data acquisition portion that acquires streaming data for content from a data transmission device, and a storage portion that stores the acquired streaming data in a storage medium. The content playback device also has a playback portion that plays back the content based on the stored streaming data, a playback control portion that causes the playback portion to halt playback of the content in response to a halt playback request, and an acquisition control portion. The acquisition control portion causes the data acquisition portion to stop acquisition of the streaming data in response to the halt playback request, and causes the data acquisition portion to restart acquisition of the streaming data in response to a resume playback request. The storage portion stores, in the storage medium, the streaming data acquired in response to the resume playback request, starting from a position at which acquisition of the streaming data was stopped.

Content playback device, content playback method, computer-readable storage medium, and content playback system

Optical writing device, optical reading device, recording medium writing method, and recording medium reading method

The invention relates to an optical disc device and a control method for the optical disc device. The presence of defects on an optical disc is confirmed by, based on the result of detecting a return light corresponding to a sub-beam spot used for tracking control, which is formed on the preceding side with respect to scan of a main beam spot, suppressing changes in signal level of the light detection result caused upon boosting of the laser power of a laser beam. Also, whether data can be correctly reproduced is determined by, based on the result of detecting a return light corresponding to a sub-beam spot used for tracking control, which is formed on the succeeding side with respect to scan of the main beam spot, suppressing changes in signal level caused upon writing of the data. Therefore, whether data can be correctly reproduced can be confirmed with a simple construction while effectively avoiding a reduction of the data transfer rate.

Optical disc device and control method using preceding sub-beam to detect a disc defect

The optical beam of the read power corresponding to the rotating velocity is radiated to a recording medium. Thereby, the rotating velocity of optical disc can be detected and the optical beam of read power corresponding to the detected rotating velocity can be radiated to an optical disc.

Growing community of inventors

Tokyo, Japan

Tsunemitsu Takase