Hitachi, Ltd.

Hitachi Maxell, Limited

Tsukasa Hasegawa

Tamotsu Ito

Shinichiro Fukushima

Chiyo Akamatsu

Hidefumi Goto

Yoshikatsu Yoshino

Takaharu Noguchi

Atsushi Saito

Masahiro Kageyama

Shigemitsu Higuchi

Yasumasa Matsuda

Yasunori Ohara

Yasuhiko Kasai

Hajime Asuma

Shinichi Yoshida

Tsukasa Yamauchi

Akira Naito

Shigeto Oheda

Takahiko Nozoe

Tomoko Tsuchiya

Hidefumi Gotou

Akira Nakajima

Tadashi Kuwabara

Jun Ito

Hiroyuki Koreeda

Yoshimichi Kudo

Mayuko Tanaka

Nobuo Hataoka

Shigeto Oeda

Michihiro Mese

Toshio Kamimura

Osamu Komoda

Haru Ando

Hideki Kuwamoto

Hiroyuki Kumai

Masayoshi Kuroda

Yoshiisa Inoue

Hideaki Kikuchi

Takao Iwatani

Yoshihiko Kunimori

Hiromi Tomita

Katsuki Ikuta

Rituko Kanazawa

Shunichi Itoh

Shigeki Hataya

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

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 device including a self-information memory which stores function data for other devices to operate the device and device name data. Upon receiving a request from another device for the device name or function data, the device sends the data stored in the self-information memory. When function data is thereafter received, the device executes a function indicated by the data. When plural devices are connected to each other via a network, device acting as a mater device, includes a connected device memory which stores device name data of all connected device and a communication pair memory which stores function data of the communication partner.

Information device, information device system control method, and information device system

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

An IRDsupplies broadcasting data on a bus in a desired time period. When the IRDperforms a reservation of the bus usage, the IRDrequests current bus usage information and information of the bus reservation from all devices connected by the bus, such as a DVD, a D-VTR, a D-VTR, a CAM, a TV, and a isochronous managerof the D-VTR. The isochronous managerand each device answer by sending the bus usage information and reservation information to the IRD. The IRDjudges a possibility of the reservation from the answer information. If the reservation is possible, it performs the reservation operation. If the reservation is impossible, then the reason is displayed on a TV. Therefore, it is possible to prevent a usage of a device that excesses the bus transferring capacity.

Electronic device, method for using electronic device, and electronic device system for reserving bus usage time on a bus to conduct communications between electronic devices

An electronic device connected to a network corresponding to plug & play and hot plug functions and enabled to control other electronic devices is provided with communication route detecting unit for detecting a communication route between electronic devices being used or reserved for communication and notifying unit for notifying the user of a result of detection by the communication route detecting unit. The above-described electronic device is configured so as to detect a communication route between subject electronic devices to be used for communication and notify the user of the electronic devices on the communication route, which must not be disconnected from the network with use of the communication unit. Consequently, the user can be prevented from accidental disconnection of the cable of a subject electronic device, thereby preventing the disconnection of the device from the network.

Electronic device, electronic device system control method and electronic device system

A video signal recording apparatus using an information recording medium, having: a unit for identifying and detecting a WO type information recording medium and a rewritable type information recording medium; a control unit for each of the WO type information recording medium and the rewritable type information recording medium; and a display apparatus for displaying a detection result of the detecting unit. In the video signal recording apparatus using the information recording medium, file management information to form a directory is recorded as intermediate information onto the information recording medium.

Camera information recording apparatus for recording image data in an optical disk wherein managing information is stored when the residual storage of a battery decreases

An IRD supplies broadcasting data on a bus a desired time period. When the IRD performs a reservation of the bus usage, the IRD request current bus usage information and information of the bus reservation from all devices connected by the bus, such as a DVD , a D-VTR , a D-VTR , a CAM , a TV , and a isochronous manager of the D-VTR . The isochronous manager and each device answer by sending the bus usage information to the IRD and reservation information. The IRD judges a possibility of the reservation from the answer information. If the reservation is possible, it performs the reservation operation. IF the reservation is impossible, then the reason is displayed on a TV . Therefore, it is possible to prevent a usage of a device that excesses the bus transferring capacity.

A device including a self-information memory which stores function data for other devices to operate the device and device name data. Upon receiving a request from another device for the device name or function data, the device sends the data stored in the self-information memory. When function data is thereafter received, the device executes a function indicated by the data. When plural devices are connected to each other via a network, device acting as a master device, includes a connected device memory which stores device name data of all connected device and a communication pair memory which stores function data of the communication partner.

A recording medium having a data management structure capable of efficiently determining whether or not an outline image representing the outline of an original image and character information representing additional contents are added, and an motion-picture voice recording/reproducing apparatus for improving a retrieving operation factor of the recorded original image by generating and outputting the outline image from the original image even when the outline image is not added. Recording position information of images representing an outline of motion-picture and a voice signal, recording position information of character information representing additional contents relating to the motion-picture and voice signals, and/or information representing that the images representing the outline or the character information is not set by a user or by a system, are recorded to, and reproduced from, the recording medium.

Information recording medium, motion-picture voice recording/reproducing apparatus, and motion-picture voice recording/reproducing method

A device includes a self-information memory to store therein function data for other devices to operate the pertinent device and device name data thereof. Receiving a request from another device for the device name or function data, the device sends the data stored in the self-information memory. When function data is thereafter received, the device executes an instruction indicated by the data. In case where a plurality of devices each including the self-information memory are connected to each other via a bus or the like in a form of a network, at least one of the devices, i.e., a master device includes in addition to the self-information memory a connected device memory to store therein device name data of all of the connected devices and a communication pair memory to store therein function data of the communication partner. The master device requests the other devices for device name data thereof. When the requested data is received, the master device stores the data in the connected device memory. Consequently, by referring to the device name data stored in the memory, the control device recognize the device name of the connected device. Moreover, the master device requests the other devices for function data thereof. When the requested data is received, the master device stores the data in the communication pair memory. Therefore, by referring to the data stored in the pair memory, the master device recognize the function of the communication partner. In consequence, when a function is selected and function data related thereto is sent to a communication partner, the function can be accordingly 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 medium is 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 the recording medium is 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.

Growing community of inventors

Hiratsuka, Japan

Tsukasa Hasegawa