Hitachi, Ltd.

Nippon Telegraph and Telephone Public Corporation

Eiji Ohira

Akira Ichikawa

Yoshiaki Kitazume

Yukio Ogawa

Toshikazu Yasue

Masaru Ohki

Nobuo Hataoka

Hirohiko Sagawa

Takeyuki Endo

Tomoko Sakiyama

Akio Komatsu

Youichi Kaneko

Satoshi Asou

Kazunori Katayama

Masaki Hirai

Hiroko Ito

The system for supporting network troubleshooting of the invention includes: storage means for periodically storing setting/configuration data and performance data of devices constituting the network based upon a schema of device IDs, interface IDs, and a respective CONFIG version number; monitoring means for monitoring the performance data of the devices by comparing the performance data with respective threshold values; identifying means for identifying the faulty device based upon the schema, when the performance data of at least one device goes beyond a respective threshold value ('faulty device'), wherein the storage means further stores the identified result for network troubleshooting. Thus, the system can estimate a factor of a change of operating condition of the network system and repair accordingly.

Method and system for supporting network system troubleshooting

The invention provides a broadcasting information service system capable of timely and flexible generation, management, broadcasting and use of information which fits needs of every user and has little redundancy. An information terminal comprises: one or more of common data files in which the data is presented in tabular form; a receiver unit which receives a data manipulation command file describing the data manipulation for the common data files; and a memory unit for environment variable which stores therein the names and the values of one or more of variables in pairs. The data manipulation of the received data file is performed in accordance with the contents of the memory unit for environment variable and the specification of the data manipulation command file , and stores therein the results of the manipulation.

Information terminal and broadcasting information service system

An information output apparatus which outputs guide information in combination with image, text, voice and sign-language so that hearing impaired, handicapped people can easily recognize the guide information. The sign-language is automatically generated by computer graphics on the basis of text information inputted to the apparatus. A user can edit the generated sign-language. When it is desired to perform a generating operation over additional sign-language information, a transitional picture is automatically inserted between the sign-language words to provide clear discrimination between the words. The inserting manner can be specified by the user.

Apparatus for interactively editing and outputting sign language

A user interface system for information retrieval which includes apparatus for sequentially effecting syntactic and semantic analysis, every time a retrieval request sentence is inputted on words and clauses of the request sentence, apparatus inputted for creating partial syntactic and semantic expressions from successively obtained results of the syntactic and semantic analysis, apparatus for predicting words or clauses which are to be next inputted as the retrieval request sentence by making use of a semantic relation between the syntactic and semantic expression and an associated task, apparatus for displaying candidates for the predicted clauses, and apparatus for taking in selected clauses as subsequent clauses of the retrieval request sentence by and permitting a user to select at least one of the displayed candidates.

User interface system for permitting natural language interaction with

In order to produce and store a pattern of reference words for use in a speaker-dependent speech recognition system, the system prompts the operator of the system to speak standard words in a predetermined sequence. For this purpose, a prestored standard word is spoken by the system with a predetermined length, power and rhythm, and the operator then repeats the standard words while attempting to simulate the same predetermined length, power and rhythm. The standard word repeated by the operator is detected and processed to determine whether it meets a certain resemblance criteria with respect to the standard word as spoken by the system. If the standard word repeated by the operator does not meet the resemblance criteria, the system repeats the same standard word to prompt the operator to try again; and, if the standard word repeated by the operator meets the resemblance criteria, it is stored as a reference word. This operation is repeated for each of the sequence of prestored standard words.

Method and apparatus for registering standard pattern for speech

Speech signal presence is decided if total signal power is above a first threshold, and if either low or high frequency components exceed thresholds as a large fraction of the total power. Total power is calculated as the zero-order auto-correlation coefficient, and fractional power of frequency components is calculated as the first-order partial auto-correlation coefficient.

Speech detecting method

A multi-frequency signal receiver, in which the digital input signals having the sampling frequency of 8 KHz or a multiple thereof are resampled at a sampling frequency of 4 KHz by means of a resampling circuit and in which the signals thus resampled are subjected to the band selection by means of a digital filter so that the frequency of the input signals may be identified.

Growing community of inventors

Hamura, Japan

Eiji Ohira