Sony Corporation

Satoshi Katsuo

Masaki Hirose

Jun Yoshikawa

Norikazu Ito

Tomohisa Shiga

Satoshi Yoneya

Masakazu Yoshimoto

Hiroyuki Fujita

Koichi Sato

Hisao Tanaka

Satoshi Yutani

Motohiro Terao

Takashi Furukawa

Hideki Ando

Takayoshi Kawamura

Minoru Kawahara

Noboru Oya

Yuka Yamamoto

Takaya Ono

Shouji Nakamura

Tsutomu Shimosato

Taro Shigata

Gentaro Okayasu

Akira Yamaguchi

Tsutomu Yamamoto

Tetsuya Narita

Shoji Nakamura

Takeshi Oka

Shintaro Mizutani

Shiro Hagihara

Syuichi Takazawa

Kazutaka Iinuma

Yoji Shimizu

A conversion apparatus and method is disclosed by which a file including data multiplexed therein can be edited or handled readily while maintaining the compatibility. A standard/independent conversion section converts a file of a standard AV multiplex format wherein video data and audio data are placed in a multiplexed state in a body into a file of an AV independent format wherein video data or audio data are placed collectively in a body. Meanwhile, an independent/standard conversion section converts a file of the AV independent formation into a file of the standard AV multiplex format.

Convertion apparatus and convertion method

A recording-and-reproducing apparatus for managing content data recorded on a removable recording medium includes: a device configured to acquire reproduction information required for reproducing the content data; a device configured to generate a first management file for individually managing the content data; a device configured to register control information for the content data in a second management file collectively managing the content data. Further, the apparatus includes a device configured to read out the control information in the second management file recorded on the recording medium; a memory in which the control information of the second management file read out by the read-out device is expanded; a device configured to compare the control information in the second management file expanded in the memory and the content data recorded on the recording medium; and a device configured to update the control information in the second management file expanded in the memory.

Recording-and-reproducing apparatus and content-managing method

The information processing system includes a plurality of information processing apparatuses connected via a network. Each apparatus includes one or more modules interconnected via a system bus. At least one of the modules is a network module having a network communication function. The information processing apparatus that inputs an external timing signal functions as a timing master, and the other information processing apparatuses function as a timing slave. The module in the timing master generates time synchronization information in the form of a packet and in the form of a command according to the timing signal and transmits the command to another module and transmits the packet to the timing slave via the network. The network module in the timing slave receives the packet from the timing master, converts the packet to the command to transmit to another module connected to the system bus and included in the timing slave.

Apparatus for time synchronizing a non-PCI component over a PCI bus

Conversion apparatus and conversion method

A recording-and-reproducing apparatus for reproducibly controlling data recorded on a recording medium includes: a device configured to acquire control information required for reproducing the data when the data is recorded; a device configured to control operations during the period from the start to the end of recording data on the recording medium. The apparatus further includes a device configured to determine whether a recorded file of the data exceeds a predetermined limit of a storage capacity of a file system in the recoding medium and sequentially generate a subsequent recorded file upon exceeding the limit. Moreover, the apparatus includes a device configured to generate a single recording-and-reproducing unit during the period on the recording medium indicated by the control device based on a plurality of recorded files upon exceeding the limit; and a device configured to update the control information by recording the single recording-and-reproducing unit on the control information.

Recording-and-reproducing apparatus and recording-and-reproducing method

A file generating apparatus for improving the usability of recording media and providing efficient read and write processes. A header control portion generates a header arranged at the beginning of a file. A footer control portion generates a footer arranged at the end of the file. A filler control portion generates a filler so that the data amount of a body, the header, or the footer of the file corresponds to an integral multiple of an ECC block on an optical disk by adding the filler to the body, the header, or the footer. A KLV encoder KLV-encodes a filler for the body according to the KLV structure. The present invention can be applied to a disk apparatus that records video data or audio data on optical disks.

File generation apparatus, method, program, and recording medium

In a recording control apparatus and method, in recording areas on an optical disk, consecutive empty areas for an ALLOCATION_UNIT are reserved as reserved areas. Multiplexed data in units of packets which can be recorded in the reserved areas is recorded in the reserved areas. A remaining part of the reserved areas in which the multiplexed data in units of packets is not recorded is freed as empty areas. Subsequently, multiplexed data is similarly recorded.

Recording control apparatus, recording control method, and program used therewith

A real-time reproduction determination unit determines whether or not AV data recorded in recording areas on an optical disc can be reproduced in a real-time manner. If the AV data recorded on the optical disc cannot be reproduced in a real-time manner, a compile simulation unit and a compile execution unit respectively select extents from the AV data recorded on the optical disc and relocate the extents to a relocation area.

Data-processing apparatus, data-processing method and program

An information processing apparatus includes a file-time-code (FTC) sort unit and a logical block number (LBN) scheduling unit. The FTC unit sorts data items recorded on an optical disk based on the playback times of the pieces of data. The LBN scheduling unit sorts the data items recorded by the FTC sort unit based on the recording positions of the data items on the optical disk. The LBN scheduling unit also uses the sorting result as the result of scheduling the order of reading the data items from the optical disk.

Information processing apparatus and information processing method, and program used therewith

A minimum buffer data amount and a minimum reproduction delay time are found from a line approximation graphic form approximating a media read line and used as a basis for determining whether or not data can be reproduced in a real-time manner from a recording medium at a requested reproduction rate. The media read line is a line expressing the change in cumulative amount of data read out from the recording medium. The minimum buffer data amount is the minimum of the amount of data stored in a buffer as data required in reproduction of the data in a real-time manner at the requested reproduction rate. The minimum reproduction delay time is the minimum of a reproduction delay time from the start of an operation to read out the data from the recording medium to the start of an operation to reproduce the data.

Information-processing apparatus, information-processing method and information-processing program

The rewriting counts in respective areas of a rewritable medium are uniformized. If empty areas are present on the rewritable medium rearward of a recording start position in terms of addresses, then data is recorded in those empty areas. When no empty areas become available rearward of the recording start position, data is then recorded in empty areas forward of the recording start position. The numbers of times that data is recorded in recording areas of the recording medium are thus averaged.

Apparatus for and method of recording data, and program

A data recording and reproducing apparatus () which generates a plurality of divided data through dividing input data Dusing a distributor () if recording data, while generating redundancy-code data Pand Pusing Read-Solomon-code data which can perform error-correcting on a plurality of divided data, and records the divided data and the redundancy-code data P, Pon HDDstoand. The data recording and reproducing apparatus () reproduces the divided data and the redundancy-code data from the HDDstoand, performs error-correcting processing on the divided data based on the redundancy-code data by an error corrector (), and outputs the divided data which have been error-corrected after multiplying the divided data by a data multiplier () if reproducing data.

Apparatus and method for recording and reproducing data, and AV server

There is provided an image reproducing apparatus and an image reproducing method which allow reproducing speed to be shifted instantly when a change of the reproducing speed is requested in a multi-channel AV (Audio Visual) server. When a request to reproduce an image is made, the image reproducing apparatus reads image data of the part corresponding to the requested reproducing speed out of the HDDs to store in a temporary storage section. Then, an image output I/F reads the image data stored in the temporary storage section and structures a reproduced image by using the image data. In this case, a controller section controls a pattern in reading the divisional data by the image output I/F and structures a reproduced image by means of various reproducing speeds by this reading pattern.

Image reproducing apparatus and image reproducing method

A data recording and reproducing apparatus capable of correctly recording or reproducing data groups by linking divided data within a hard disk is provided. When a group of data such as video and music data are recorded into a hard disk to which random access is possible, file controlling information for indicating a link between the plurality of groups of data is produced from the time code of the groups of data in a time-ordered fashion. Thus-produced file controlling information is then stored in a SRAM of an operation controlling section. When the reproduction position is indicated by the time code, this position is converted into a relative position from the initial position of the file by using the file controlling information. Based on the relative position from the initial position of the file, the data is read out from the hard disk.

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Kanagawa, Japan

Satoshi Katsuo