Nec Corporation

Tdk Corporation

Koichi Funaya

Yoshihide Kikuchi

Osamu Ootsuka

Yuji Kaneko

Satoru Kaneda

Naoki Soeda

Kantarou Oota

Katsuaki Yamamoto

A disk system has contents play-back restriction mechanism. A contents storage section, which contents received from a regular server are stored in. A capacitor charged with power supplied from the server. A volatile memory backed up by the capacitor and stores data necessary for the play-back of the contents received from the server. A controller for controlling the contents storage section and the volatile memory for reading and writing data when supplied with power from a regular player or the server.

Disk system and medium with contents play-back restriction mechanism

The present video apparatus is provided with a re-encoder having an audio/video processing section disposed between a decoder and an encoder so that the decoded audio/video signals can be re-encoded. Image resolution of the video information is altered by the audio/video processing section so as to control the bit-rate of the audio/video encoding process performed in the encoding section to suit the system performance. Such a configuration of the video apparatus enables to control the file size of the audio/video codes recorded in a recording medium of the recorder. It is also possible to use the audio/video processing section to insert characters, diagrams and image information in the video data, and to insert additional audio data in the original audio data.

Video apparatus and re-encoder therefor

An apparatus for recording and playback of digital broadcasts determines programs that can be played and recorded simultaneously in accordance with a bit rate of each program to be recorded and played back and the performance capacity on which programs are recorded. Bit rate information for programs is provided in conjunction with information identifying the programs in an electronic program guide received by the apparatus.

Program information providing apparatus and record/playback control apparatus

A bus switch for realizing bus transaction across two or more buses comprises N (N: integer larger than 1) bus bridges, a switch module and a scheduler. When a transaction cell is generated by a bus bridge, the bus bridge adds a destination port number to the header of the transaction cell. The destination port number designates one of output ports of the switch module to which the transaction cell should be transferred. When the transaction cell is supplied to an input port of the switch module, an output port multiplexer of the switch module is controlled by the destination port number in the transaction cell, and the transaction cell is transferred to one of the output ports that corresponds to the destination port number, thereby the transaction cell is transferred to a destination bus bridge. By the addition of the destination port number, the scheduler does not have to directly control connection of a transfer path in the switch module. Therefore, the scheduler and the switch module do not have to be connected together via lines, and thus the scheduler and the switch module can be formed in separate and independent two LSIs. Consequently, the number of buses connected to the bus switch can be increased easier in comparison with conventional bus switches.

Bus switch for realizing bus transactions across two or more buses

In a data delivery server apparatus to which a plurality of terminal equipments each having a unique identifier are connected, a storage section stores a plurality of data, each of which includes one or more data blocks. A quantizing section receives an access request as pre-quantization access request from each of the plurality of terminal equipment. The pre-quantization access request requests a data stored in the storage section. The quantizing section also quantizes the access request to produce one or more post-quantization access requests associated with one or more data block of the data. A reducing section produces a collective access request from the post-quantization access requests belonging to each of quantization regions of the quantizing section. An access section accesses the storage section in accordance with each of the collective access requests to read out the corresponding data block from the storage section. A delivery section for delivering the data block to the terminal equipments which have issued the pre-quantization access requests corresponding to each of the collective access request.

Data serving apparatus with access requests quantized into variable size

Acceleration/deceleration processing is performed in industrial robot controls when there is a transit point in an instructed trajectory where the robot tip cannot follow the trajectory with the instructed velocity because of the allowable limit of acceleration of the robot tip. In the invention, for specifying the velocity reduction ratio at the transit point quantitatively and continuously in consideration of tradeoff between the tracking error and the continuity of the traveling speed, a transit velocity or the velocity at the transit point after acceleration/deceleration processing is calculated from a linear combination of two instructed velocities before and after the transit point referring a transit velocity parameter as the velocity reduction ratio. To attain the transit velocity with allowable acceleration, the start point and the end point of acceleration/deceleration processing are determined, and the robot tip is controlled through continuous acceleration/deceleration processing from the transit point to the end point.

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Tokyo, Japan

Koichi Funaya