Sony Corporation

Hiroki Kotani

Tetsuo Ogawa

Naoko Kumagai

Kaichi Tatsuzawa

Atsuhiko Mimura

Takao Abe

Keiko Abe

Toshiya Asai

Tetsuro Suma

Hisanori Kominami

A communication device including an access authority data managing DB device for managing access authority data with which access authority for at least one of storage area defined logically or physically in a storage device. File data stored in the storage area is defined while at least one of a user making the access and a group to which the user concerned belongs is set as a unit. A non-open WWW device controls access to the storage device on the basis of the access authority data achieved from the access authority data managing DB device in accordance with an access from a terminal device.

Communication device, communication system and method for managing access authority data

A communication device including an access authority data managing DB device for managing access authority data with which access authority for at least one of storage area defined logically or physically in a storage device and file data stored in the storage area is defined while at least one of a user making the access and a group to which the user concerned belongs is set as a unit, and a non-open WWW device for controlling an access to the storage device on the basis of the access authority data achieved from the access authority data managing DB device in accordance with an access from a terminal device.

Device and method for controlling access to open and non-open network segments

It is an object of the present invention to provide a recording apparatus and a reproducing apparatus which change a picture compression rate depending upon a picture quality of a source which a user desires to retain, thereby a tape storage space being secured. A video-data compression rate N used by a 1:N video-data compression encoderand a 1:N video-data compression decoderis changed depending upon a picture quality set by a devicefor setting a picture quality that a user desires. A tape travel speed of an archive VTRis changed in response to the picture compression rate. Thus, an amount of a tape travel is optionally set depending upon a level of the picture quality. Therefore, it is possible to optionally select a tape storage space in response to the level of the picture quality.

Recording apparatus and reproducing apparatus

An ATM I/F for transmitting data to a data transmission destination via a communication network, a data transmission server, and a data transmission managing device for calculating a network necessary for data transmission on the basis of the data quantity of the data to be transmitted and the transmission completion time indicating the time of completion of data transmission to the data transmission destination are provided. Accounting information is generated on the basis of the calculated network band and transmission time. The data is transmitted to the data transmission destination by using the calculated network band. The data transmission to the data transmission destination is completed by the transmission completion time, and accounting information is generated. Thus, when transmitting data via the communication network, the data transmission completion time is designated in advance for data transmission.

System for transmitting reservation data and completing the transmission by transmission completion time

A video providing device () comprises network I/Fs (), () for transmitting/receiving a video to an external network, a high-quality video server () for storing the video as a regular editing video, a high-compressed video streamer () for storing the video as a rough editing video, a high-compressed video server () for reading out and transmitting the rough editing video on the basis of a video transmission request from a production () included in the external network (), and a high-quality video server () for extracting and transmitting a part of the regular editing video to a post production () on the basis of the result of editing processing from the production (). Thus, the video providing device () receives, for example, a video prepared by the production () and supplies a part of the video to the post production ().

Video supply device and video supply method

Inputted video signals are highly compressed in a high-compression processing means and the compressed signals are saved in a high-compression system processing means, and the video signals lowly compressed in a low-compression processing means and the compressed signals are saved in a first and a second recording means with separating them according to using frequency. The saved videos in the high-compression system processing means are edited and an executing sequence list showing their executing sequence is formed, and a video signal having a high using frequency is outputted from the first memory means which has a small storage capacity (thus, easily accessible), based on the executing sequence list.

Signal processor

Method and apparatus for transmission of compressed picture data

There is disclosed an editing machine for performing a nonlinear edit by a fewer number of video tape recorders than heretofore without requiring a dubbing operation. Where the nonlinear edit is an insertion of other signal, the editing machine comprises a first video tape recorder for reproducing a signal from tape, a second video tape recorder, and a switcher. The first video tape recorder has a delay circuit for delaying the reproduced signal to produce an output signal delayed by a first amount and an output signal delayed by a second amount. The switcher selects one of the signals from the first video tape recorder and the reproduced signal from the second video tape recorder. In the output signal from the switcher, the reproduced signal from the second video tape recorder has been inserted in the reproduced signal from the first video tape recorder.

Editing apparatus using delay means for inserting a desired signal into

In recording a time code signal together with digital video and audio signals, at least one channel of a digital audio signal is supplied to rotary heads scanning successive slant tracks on a tape for recording in intermediate sections of the slant tracks, a digital video signal is supplied to the same heads for recording in other sections of the slant tracks situated before and after the intermediate sections and being relatively longer than the latter, and the time code signal is also supplied to the rotary heads for recording in the intermediate sections with the same time codes being represented by the time code signal recorded in the intermediate sections of a successive plurality of the slant tracks which contain the digital video signal for a respective frame.

Recording and reproducing digital video and audio signals together with

Apparatus for decoding an error detecting or correcting code constructed from digital information data and redundant data for detecting or correcting errors in the digital information data, the digital information data and redundant data being reproduced from a record medium by a playback apparatus that operates in a normal speed mode and fast and slow speed modes, includes a first decoder for decoding the error detecting or correcting code and for generating flag data indicating error conditions of the digital information data, a first memory for storing the digital information data subjected to the decoding in the first decoder, and a second memory for storing flag data. A controller is provided with a mode signal indicating a normal playback mode or a fast playback mode of the record medium playback apparatus for controlling the first and second memories so as to read out the digital information data and flag data, respectively, when the mode signal indicates the normal reproducing mode and so as to read out the digital information data without error and the flag data, respectively, when the mode signal indicates the fast reproducing mode.

Growing community of inventors

Tokyo, Japan

Hiroki Kotani