Hitachi, Ltd.

Hitachi Information Network, Ltd.

Toshiyuki Oda

Takashi Takeuchi

Tamotsu Ito

Hiroaki Takahashi

Tadashi Kuwabara

Hitoshi Akiyama

Osamu Tomobe

Takaharu Ishida

Tomochika Ozaki

Yoshihito Sato

Masakazu Hamaguchi

Tomochika Yamashita

Mika Tahara

Isao Saito

Hajime Fujiya

Yukari Matsubara

Mika Nishiyama

Jun Miyauchi

Koji Kawakami

Shiyouichirou Funato

A relay station comprises an emergency information detection unit for detecting an emergency information broadcasting flag in the digital broadcasting TMCC signal transmitted from the center station; a replacement data creation unit for issuing an instruction for creating replacement contents and replacing the data when emergency information is multiplexed in the TS; and a time synchronization unit for executing time synchronization between the TS created by the data replacement and the TS before the data replacement. On a receiving terminal, the replaced data broadcasting contents can be received while prefectural broadcasting video and audio contents are continuously received.

Broadcasting data converter

Information obtained through a network and information distributed from a package medium are mixedly displayed. A package medium 3 has a URL (Universal Resource Locator) and information for converting a directory structure in the package medium. A terminal has information for managing correspondence between data of a received electronic mail 6 and a URL of the data. The URL is used for designating data. When the designated URL exists in the terminal, data is read from the terminal. When the designated URL exists in the package medium, data is read from the package medium. The read data is mixedly displayed on one screen.

Package medium system having URL hyper-linked to data in removable

An interactive recording/reproducing medium including: image data; image reproduction control data which defines an operation instruction received from operation input apparatus and a reproduction procedure for the image data in correlation with each other, the operation input apparatus performing a reproducing operation for the image data in an interactive manner; image related data related to the contents of the image data; and relation defining information which defines the relation between the image related data and the image data. More particularly, an interactive recording/reproducing system which is interactively responsive to operations made by a user, which defines information such as text data (e.g., ASCII text) in association with an image and reproduces the text data simultaneously with reproduction of the image. An optical disk medium comprises a Video-CD recording area for recording image data (e.g. dynamic images, static images, voice) which conform to a basic Video-CD standard, a PC data recording area for recording text data associated with the image data, and a reproduction application recording area for recording a program to effect reproduction using a PC (personal computer). A Video-CD reproducing system and a PC can be alternatively used to perform reproduction using a content of the optical disk medium.

Interactive recording/reproducing medium and reproducing system

An interleaved data recording area for recording interleaved file data and a control program record area for recording a program to control the reproduction of the data are provided in an information recording medium, and the interleaved data record area is arranged succeeding the control program record area. Information of a transfer/output destination of the reproduced file data is included in the control program so that a plurality of interleaved and stored file data are continuously reproduced without retrieving control data.

Information reproducing system for reproducing interleaved image data

A television signal receiving apparatus which can read program information relevant to a television program from an optical disk medium, interlocked with the television program and can reproduce and display the read program information. Program information (broadcasting information including program names, broadcasting channel names and broadcasting dates and times and appendant information relevant to the contents of the programs) relevant to the television programs to be displayed by the television receiver/display is recorded in the optical disk medium. When a user instructs a display of the program information by the selection and decision input unit, the television control unit transmits the display request and time information from the clock apparatus to the control unit of the optical disk unit. The control unit makes the appendant information to be reproduced from the optical disk medium, by using the broadcasting channel name and the time information as retrieval information. The appendant information is sent to the television receiver/display through the interface and is displayed in a picture and sound.

Television signal receiving apparatus incorporating an information

An interactive program selecting system uses a plurality of channels (broadcasting signals) including a channel dedicated to a menu and has a tuner for receiving a broadcasting signal, a menu screen information extractor for extracting menu screen information, a display data memory for storing display data of menu screen information, a control data memory for storing control data such as a menu screen information number and moving information, a decoder for converting digital data into display data, a display unit, an RC (remote controller) for designating a menu selecting operation by a user, an RC receiver for receiving an RC signal, and a menu selection executing controller responsive to a operation command by the user to control the tuner and the menu screen information extractor.

Interactive program selecting system

A portable CD-ROM retrieval apparatus, is provided wherein a CD-ROM drive for loading a CD medium, a display for displaying characters and images, an input specifying section for specifying a desired input operation, an audio section for producing sounds, and a data storage for storing data from the CD-ROM drive and the like are connected together through a control section, these devices being housed in a single cabinet. In accordance with one feature, the apparatus can calculate and display statistical information which depends on frequency of data access to the CD medium.

CD-ROM retrieval apparatus

An information recording disc having at least two bands of information provided thereon. Each of the bands contain at least one track with one of the at least two bands being a read-only area band or a write area band along the one track of the one band. Another of the at least two bands is a mixed area band having at least one read-only area and at least one write area at different portions along the track of the mixed area band. An information system utilizes the disc for writing and reading information to and from the disc.

Information recording disc and system

A color image displaying method in which n of independent combinations of bit maps and CLUTs are prepared from data of n (n being a natural number) of independent original images, composite bit maps are prepared respectively by composing color codes ones of the pixels of the n of bit map at the same display position, a composite CLUT is prepared by composing the n of CLUTs, the composite bit map is displayed with use of the composite CLUT, whereby such image effect displays as fade-in, fade-out, cross fade, and glowing can be realized with respect to the plurality of images while preventing the increase of a bit map capacity and a display circuit size.

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Kawasaki, Japan

Toshiyuki Oda