Nec Corporation

Hitachi, Ltd.

Hitachi-high-technologies Corporation

Hitachi High-tech Corporation

Makiko Yoshida

Takahide Yokoi

Takayuki Kawahara

Hiroyuki Saito

Shunsuke Sasaki

Takashi Anazawa

Hiroyuki Okazaki

Naoshi Itabashi

Yoshimitsu Yanagawa

Makoto Nishio

Takashi Egawa

Takamichi Muramatsu

Sonoko Migitaka

Sho-ichiro Nakai

Takashi Tabe

Takakura Tatsuki

Provided is a biomolecule measuring device capable of effectively reducing measurement noise occurring when measuring a biomolecule sample using a semiconductor sensor. This biomolecule measuring device generates a trigger to react a sample with a reagent after starting to send the reagent onto the semiconductor sensor that detects ion concentration (see FIG.).

Biomolecule measuring device

An aspect of the present invention includes performing electrophoresis of a nucleic acid sample to be analyzed labeled for each base type, generating waveform data of detected intensity by detecting a label signal for the each base type, selecting another peak position for each peak position of the waveform data for each base type, calculating relative signal intensity of signal intensity in each position relative to the signal intensity in the other selected position, and analyzing existence of each base type in a base sequence coordinate position of the nucleic acid sample by comparing the relative signal intensity of the nucleic acid sample to be analyzed and the relative signal intensity of a known nucleic acid sample in each peak position. Accordingly, acquiring information about a gene mutation in trace amounts existing in a target gene region highly sensitively with high precision is realized.

Gene mutation analyzer, gene mutation analysis system, and gene mutation analysis method

A network management method provides optical performance and configuration management to satisfy user demands. Network information of the network is stored for retrieval and, when inputting a plurality of user demands each for a change of performance of the network, a modified design of the network is provided based on the network information to satisfy the user demands.

Network management system with network designing function

In a connection admission controlling system, a call admission processing and allocating device judges whether or not a call is admitted in response to a peak rate of a traffic and allocates, as a temporary bandwidth, the peak rate to the call when the call is admitted. A resource controlling device has a connection call controlling table which holds call connection data of calls each of which has at least one of the temporary bandwidth and an effective bandwidth. A traffic measuring device measures a traffic of the call to produce a measured traffic. An effective bandwidth computing and allocating device has a new call controlling table which holds new call connection data representing data of calls each of which have the temporary bandwidth. The effective bandwidth computing and allocating device computes the effective bandwidth by using the measured traffic and allocates the effective bandwidth to the call.

Simple connection admission controlling system and method capable of

In a self-healing communications network of meshed topology, wherein a group of network nodes form part of the network and support a communication route, a delay time period is established for each network node of the group in response to the occurrence of a failure in the communication route, the delay time period of each network node of the group being different from the delay time periods of other network nodes of the group. A self-healing fault restoration activity is initiated from each of the network nodes of the group when the amount of time elapsed from the time of occurrence of the failure equals the delay time period established for each network node. As a result, self-healing fault restoration activities are initiated from several network nodes at successively delayed instants, and control traffic is time-dispersed, preventing traffic concentration of fault restoration messages.

Self-healing network initiating fault restoration activities from nodes

In a reconfigurable network shared by multiple users, a reservation request is sent from a user who desires to establish a network resource in the network. The request contains indications of a circuit assigned to the user, a network resource desired to be allocated from the resource of the assigned circuit, dates and start and end times of a reservation time span. A reservation system includes an interface connected to the user networks for receiving the request, a first database, a second database for storing resources respectively assigned to the user networks. An admission controller connected to the interface is responsive to a user's request for accessing the first and second databases to verify the availability of the desired resource, and informs the user as to the results of the verification. If the desired resource is available, the data of the request is stored into the first database. As a separate unit, a link control module is provided which is connected to one of the interconnection switches. At the start time of the request, the link control module operates the associated switch to establish the desired network resource, and at the end time of the request, operates the associated switch to clear the established network resource. The admission controller removes the data of the request from the first database at the end time of the request.

Network resource reservation with admission and link control functions

A video-on-demand system provides video signals from a video information provider to any one of subscriber terminals. The system comprises video storage devices distributed over a network area for storing a video program supplied from the video information provider. A video gateway receives a subscriber request from a subscriber terminal and produces a control signal according to the information stored in a database. A service request monitor analyzes subscriber requests received by the video gateway to produce a list of recorded calls. A program relocator analyzes the list to determine first and second video storage devices between which the video program is to be transferred. A transfer command generator is responsive to the determined video storage devices for supplying a program transfer command signal to the video gateway for updating the database. A switched telecommunication network is responsive to the program transfer command signal for transferring the video program from the first video storage device to the second video storage device and responsive to the control signal for establishing a connection between the subscriber terminal and the second video storage device,

Growing community of inventors

Tokyo, Japan

Makiko Yoshida