Kabushiki Kaisha Toshiba

Takehiko Okuyama

Kenji Shimoda

Kenjiro Endoh

Jun Okazaki

Hiroaki Kobayashi

Noriko Inoue

Takashi Kokubo

Yoshihisa Sakazaki

Shinji Yamadaji

Tomoko Sekiguchi

Tomoe Kawakami

Masashige Yogo

A relay apparatus according to an embodiment of this invention includes an ID acquisition unit configured to acquire the unique ID of a partner device connected to a predetermined network, and a control unit which controls various processes on the basis of the unique ID of the partner device, which is acquired by the ID acquisition unit.

Relay apparatus and network relay method

A transmitting section divides a content recorded in a recording medium into data of a predetermined size, reproduces the data, and transmits the data to a receiving device. An erasing section erases the outputted data recorded in the recording medium, when the data of the predetermined size is transmitted to the receiving device. An EOB adding section adds an EOB, which shows an end of transmission, to the data transmitted from the transmitting section, when a power off signal is inputted during transmission of data by the transmitting section. An EOB-added data position storing section stores a recording position, on the recording medium, of the data to which the EOB is added. Then, a power off control section turns off a power of the device.

Reproducing device, reproducing method, and receiving device

On the basis of information of a topology map, a parent node ID list is generated to show correspondence of ID of each node to that of its parent node. Information given by the parent node ID list is transmitted as connection display data in a predetermined format. The receiving side, on the basis of the received connection display data, obtains information of a connecting status display to display connecting status of a network. On the basis of this information, a display to show connecting status of the network is displayed.

Apparatus for transmitting connecting status and method of displaying connecting status

A DCM/FCM manager detects the coincidence of modules by comparing a device control module and a device function module transferred from a DCM/FCM memory of other device with a content in the inside of a DCM/FCM memory of its own device. One of coincident modules is deleted and this deletion is stored in the DCM/FCM memory. The DCM/FCM manager generates link information for making use of the deleted module and makes a registry store the link information. In case of controlling the other device, a control part reads out the module from the DCM/FCM memory based on the link information of the registry and generates a command based on the read-out module and transfers the command to the other device. Accordingly, the network equipment can control devices on the network with the least memory capacity.

Network equipment and networking method

An apparatus which can achieve a synchronous dubbing and can record new data at a position just after data previously recorded without an unnatural gap and without using a buffer memory with large capacity. A reference signal from a cylinder servo circuit/tape transport servo circuit of a transmitter is converted into an isochronous packet. The packet is sent out from a digital interface transmitting circuit to a 1394 cable. On the reception side, an isochronous packet converter circuit restores a received isochronous packet into an original reference signal and sends it to the cylinder servo circuit/tape transport servo circuit. By so doing, the transmitter and the receiver are synchronized with each other, and it becomes possible to achieve a synchronous dubbing and to record new data at a position just after data previously recorded without an unnatural gap. Then the transmitter sends out dubbing data and the receiver receives it. The transmission reproduction processing and the reception recording processing are performed at the timing of the reference signal, so no buffer memory for timing adjustment is required.

Apparatus with digital interface and digital interfacing method

A controller makes a demultiplexer select a transport stream corresponding to user's operation, and supplies it to a VTR through an I/F circuit. The I/F circuit of the VTR gives the transport stream to a recording/reproducing unit for recording, and transmits EIT data to a TV to supply them to a program guide GUI generating part. The GUI generating part generates GUI data based on the inputted EIT data, and makes them stored in a cassette memory using a cassette memory unit of the VTR. At the time of reproduction, GUI data read by the cassette memory unit is supplied to the program guide GUI generating part, and a program guide display of programs recorded on a cassette tape is displayed. In this manner, guide information on programs recorded on a cassette tape is automatically displayed.

Apparatus and method of displaying recording

A copy flag detecting circuit in a device detects the copy generation management information. This copy generation management information is inserted in the CIP header of the IEEE 1394 packet for transmission. The copy flag detector of the 1394 interface in the device detects the copy generation management information in the CIP header. According to the detection result, the copy generation managing circuit records new copy generation management information and the recording controlling circuit permits or prohibits recording. Thus, there is no need for a decoding circuit at a receiving device.

Device having a digital interface and a network system using such a device and a copy protection method

A microcomputer reads out cassette management information from an integrated-circuit memory on a cassette to give the same to a digital interface formatter. The digital interface formatter outputs the cassette management information by a digital interface format which packages reproduced digital image and audio signals from an error correction circuit and a sub-code and the cassette management information. Upon dubbing recording, a separation circuit extracts the cassette management information from a dubbing input to give the same to the microcomputer. On the basis of the inputted cassette management information, the microcomputer creates cassette management information corresponding to a program to be dubbed to store the same into the integrated-circuit memory. In this manner, upon dubbing, the image and audio information is recorded onto a tape and the cassette management information is automatically recorded onto the integrated-circuit memory. Thus, the user may avoid a complicated information input task.

Information-signal multiplexing transmission apparatus using a cassette

Node c, which is connected by two different protocols, that is, the IEEE 1394 as a line transmission system and the radio transmission system, becomes the bus manager through bus arbitration, and allocates ID to each of nodes a to d in the network. In data transmission, the transmission rate informing part in node c informs each of nodes a to c of the maximum rate in the radio transmission system. The communication procedure converting part and the signaling type converting part in node c convert into the communication procedure and the signaling type suitable for the radio transmission system, and transmit the converted data to node d in the radio network through a communicating part for transmission system B, thereby enabling real time data transmission.

Method and apparatus for connecting network

A contact apparatus for a network in which a plurality of outlets are connected with each other by a repeater through a bus. A cable contains a bus to transmit signals and a power supply line. When the cable is connected with one of the outlets, the device concerned participates in the network and the power supply voltage is supplied to the device. Data can be exchanged between the devices only by connecting the cable with the outlets.

Contact apparatus for a network

Device having a digital interface and a network system using such a

A transfer-rate computing component computes a transfer rate of an output from a digital video tape recorder component to output the same through a packet conversion component. Child units, which are newly connected to a bus, output data of the transfer rate subsequent to a request command of a bus use right. A total transfer-rate computing component of a parent unit computes a total transfer rate of the data which are transmitted through the bus. An arbitration control part judges whether or not the total transfer rate exceed the maximum transfer rate which is set in the bus. Only when the total transfer rate does not exceed the maximum transfer rate, a command transmission component issues a bus use permission right, to accept the transmission of data from newly connected child units. In this manner, when a new unit or device is connected to the bus and also when connection of the bus is turned off, synchronous transfer is assured.

Growing community of inventors

Kanagawa-ken, Japan

Takehiko Okuyama