Hitachi, Ltd.

Other

Hitachi Maxell, Limited

Casio Hitachi Mobile Communications Co., Ltd.

Tamotsu Ito

Tsukasa Hasegawa

Masahiro Kageyama

Takashi Takeuchi

Akira Date

Shigemitsu Higuchi

Takaharu Noguchi

Atsushi Saito

Chiyo Akamatsu

Hidefumi Goto

Yasunori Ohara

Ryuichi Koike

Hiroshi Banno

Yukari Sakuramoto

Osamu Komoda

Hiroyuki Hayakawa

Akira Okushi

Susumu Yoshida

Toshiyuki Oda

Shinji Otsuka

Hirofumi Tsujimura

Makoto Ikushima

Tomoyuki Okada

Kaoru Murase

Hiroaki Ono

Akinobu Watanabe

Shinichiro Fukushima

Kazuhiro Maeda

Toshihiro Kato

Tatsuya Ishitobi

Keiji Nagayama

Eiji Ikeda

Yuzuru Takahashi

Masayoshi Kuroda

Katsuhiko Tonami

Katsuki Ikuta

Kensei Hayakawa

Shiyouichirou Funato

Isao Kito

Toshitaka Sugimoto

Noriaki Harada

Atsihiro Ohno

Tsugutaro Ozawa

Atsuhiro Ohno

A plurality of devices and a device system are disclosed, in which a plurality of input devices generate an input AV signal, a related device records and reproduces the AV signal, and a display device displays the AV signal. The input devices, the related device and the display device are interconnected to configure an AV system having a bus for transmitting or receiving the AV signal and management information. The related device of the AV system includes a recording medium for recording the AV signal, and the input devices transmit to the related device a request to secure a recording area on the recording medium.

Method of using AV devices and AV device system

A method and apparatus for accessing content is capable of retrieving and selecting information is facilitated by using uniform operations. Symbols corresponding to pre-recorded programs contained on a recording medium are displayed on a screen. In response to selecting one of the symbols, representative frames comprising the program are displayed on the screen. In response to selecting a representative frame, a portion of the program is played back. In a recording device, content is accessed by displaying a representative frame from each of a number of user-defined streams. At least a portion of a stream is played back in response to selection of the corresponding one of the representative frames.

Method and apparatus for accessing content

An operation section housing and a display section housing are connected by a rotatable hinge having a structure in which the display section housing rotates with the rotatable hinge serving as the central rotational axis. The display section housing has three built-in speakers in predetermined positions of a display. A personal digital assistant detects the angle of the rotatable hinge and identifies the speaker located in the leftmost side and the speaker located in the rightmost side relative to an upright display image displayed on the display. Then, the left audio is output from the left side of the upright display image and the right audio is output from the right side of the upright display image.

Personal digital assistant and stereo reproduction method

There is provided a cellular phone taking into consideration enhancement in processing speed and reduction in current consumption, and the cellular phone comprises a processing unit capable of executing plural kinds of processing, an oscillator for generating a clock signal to be fed to the processing unit, and a clock controller for converting the frequency of the clock signal received from the oscillator, wherein the clock controller changes the frequency of the clock signal for each of the plural kinds of the processing in response to the control by the central processing unit.

Mobile terminal

A broadcast reception system with improved usability is disclosed. The system includes a broadcast receivable mobile terminal and a server capable of sending and receiving data to and from the mobile terminal. This terminal has a first broadcast receiver and a first communication unit for data communication with the server. The server has a second broadcast receiver, a second communication unit for data communication with the mobile terminal, and a storage unit for storing therein the data received by the second broadcast receiver. When the first broadcast receiver goes bad in reception state, the mobile terminal transmits by the first communication unit to the server a send request information signal which calls for transmission of broadcast data. Upon receipt of this request, the server sends the data received from the storage unit to the mobile terminal by the second communication unit.

Broadcast reception system, mobile terminal and server

A first video file managed by a first directory having a DVD standard and a second video file which has High-resolution are recorded on optical disc. Reference information in order to refer to said second video data is recorded in said first video file. This makes it possible to store video data by a different compression method on the standard DVD disc as well as standard DVD video data.

Video disc recording and reproducing apparatus, and method using the same

A playback apparatus for playing back picture information from a storage medium storing one or more still pictures and still picture group management information for managing one or more still pictures as a still picture group. The apparatus includes a device for reading out the still picture group management information from the storage medium; and a memory for storing the still picture group management information read out from the storage medium. The still picture group management information is classified into a first type of still picture management information, a second type of still picture management information, a third type of still picture management information, or a fourth type of still picture management information. The still picture group management information includes still picture management information having a data size designated by the type.

Apparatus for playing back still picture stored in storage medium based on still picture management information

A computer-readable storage medium storing thereon a procedure for controlling a computer to play back a storage medium storing one or more still pictures and still picture group management information for managing one or more still pictures as a still picture group. The procedure including reading out the still picture management information from the still picture group management information in said storage medium. The still picture group management information is classified into a first type of still picture management information, a second type of still picture management information a third type of still picture management information on a still picture with only a post-recorded audio added to the still picture already recorded, or a fourth type of still picture management information. The still picture management information has a data size designated by the type.

Computer readable storage medium for storing still picture and still picture management information

A recording apparatus for recording one or more still pictures and still picture group management information for managing the one or more still pictures as a still picture group onto a storage medium and a storage medium therefor. A memory is provided which stores the still picture group management information. Apparatus is provided which records the still picture group management information stored in the memory to the storage. When the still picture is recorded, apparatus is provided which selects first still picture management information or selects second still picture management information in accordance with audio, and apparatus which records the first or second still picture management information in the still picture group management information in the same order of recording corresponding still pictures.

Storage medium, recording apparatus, playback apparatus, recording method, and computer-readable storage medium

A content access method and apparatus includes decompressing an input stream read from a storage medium to produce an output signal. The output signal is then multiplexed with timing information different from the timing information contained in the input stream.

Digital information processing method

Programs or data in a mask ROM incorporated in a one-chip microcomputer can be modified from the outside. With version information appended to each of a mask ROMincorporated in a one-chip microcomputerand an external EPROM, by comparing the version numbers, programs (tasks and subroutines) of a new version can always be executed and update data of a new version can be used. The programs can be customized for each user.

Microcomputer control system in which programs can be modified and newer versions of the modified programs being detected and executed

A realtime data recording method allows recovery of recorded file data upon occurrence of a fault for use as a readable file. Prior to recording, initial management data are generated such that the entire area on a recording mediumis reflected as a recording range. After the initial management data has been recorded, data recording is started. During the recording, a writing status of the recording medium (or apparatus) is set as in-writing status, and realtime sector information generated in parallel to data recording is recorded in a non-volatile memory for management of a recording status. Upon restarting after a recording fault, the in-writing status of recording mediumis read to see if the medium has been set open, and inconsistency between the recording information of the sector information and the in-writing status recording information is detected. Correct management data is recorded and re-recorded onto the recording medium.

Realtime data recording method

Growing community of inventors

Ayase, Japan

Tamotsu Ito