Konica Corporation

Oki Electric Industry Co., Ltd.

Nippon Sheet Glass Company, Limited

Waseda University

Kei Yamada

Tetsuo Kimoto

Tomoya Yoshida

Kunio Shijo

Kazuhiro Takemoto

Kenzo Akagiri

Makoto Morito

Takashi Yazu

Kazuo Izumi

Ikuya Hotta

Tetsunori Kobayashi

Tetsuji Ogawa

Kunio Shijyo

In a source sound separator, first and second target sound predominant spectra are generated respectively by first and second processing operations for linear combination for emphasizing the target sound, using received sound signals of two microphones arrayed at a distance from each other. A target sound suppressed spectrum is generated by processing for linear combination for suppression of the target sound, using the two received sound signals. Further, a phase signal containing a larger amount of signal components of the target sound and exhibiting directivity in the direction of the target sound is generated by processing of linear combination, using the two received sound signals. The target sound and the interfering sound are separated from each other using the first and second target sound predominant spectra, the target sound suppressed spectrum, and the phase signal.

Source sound separator with spectrum analysis through linear combination and method therefor

In a circuit which adds a partial product {&#x3a3;(Aj*B)*2^j (j=0, . . . , m&#x2212;1)} to a provisional remainder u by using a value of inferior m bits (m is an integer not less than 2) of a number to be multiplied A and a multiplier factor B, there is provided a multiplication remainder calculator which shifts inferior m bits of a provisional remainder u by continuously connecting m stages of processing circuits which perform addition of a modulus N and one-bit shift, and calculates a Montgomery product of the number to be multiplied A and the multiplier factor B by repeating this processing, wherein a multiple number of the multiplier factor can be calculated by inhibiting one-bit shift of the processing circuits.

Multiplication remainder calculator

An image forming apparatus administration system is provided which includes an image forming apparatus, which is located in a first local network and connected to the Internet through a first firewall server, an administration computer, which is located in a second local network and connected to the Internet through a second firewall server, and a relaying server, which is located outside the first local network and the second local network and is connected to the Internet. The administration computer transmits information for administrating the image forming apparatus to the relaying server, and accesses the relaying server to obtain information corresponding to a state of the image forming apparatus. The image forming apparatus accesses the relaying server at a predetermined timing to obtain the information from the administrating computer, and transmits the information corresponding to the state of the image forming apparatus to the relaying server.

Apparatus administration system

The image forming apparatus, for printing print data, and a printing control apparatus, for controlling a printing operation of the image forming apparatus, are connected through a network. In the printing control apparatus, there are provided an authentication means that authenticates a user of the image forming apparatus, a discriminating means that discriminates whether print data for which the printing is instructed by the authenticated user is for public business or for private business, a recording means that records information relating to printing of print data as private business information corresponding to the user when the print data are discriminated by the discriminating means to be for private business and a charging means that charges for private business printing of the user based on the private business information recorded on the recording means.

Printing control apparatus and a method of charging for printing

An image processing apparatus management method wherein an external management apparatus manages an image processing apparatus via an information communications terminal, having the steps of transmitting to the external management apparatus inputted first identification information inherent to the image processing apparatus and second identification information stored in the information communications terminal in advance; authenticating the transmitted second identification information based on second identification information previously stored in the management apparatus; acquiring operation information of the image processing apparatus previously stored being associated with the first identification information; transmitting to the information communications terminal the operation information of the image processing apparatus; accepting the input of the operation information of the image processing apparatus sent through the information communications terminal; and performing the specified operation corresponding to the operation information of the image processing apparatus.

Image processing apparatus management method and image processing apparatus

The invention provide a glass optical element which contains an alkaline metal oxide and an alkaline earth metal oxide, comprising an end portion that contains a fluoride ion or a fluorine compound on or in a vicinity of an exposed surface of the glass optical element. The end portion containing the fluoride ion or the fluorine compound is formed by contacting the surface with hydrofluoric acid. A rod lens array is fabricated by arranging a plurality of graded index rod lenses as glass optical elements of the invention. The weather resistance of the element or the lens array can be improved by the above treatment.

Glass optical element and method for producing the same

An image forming apparatus administration system is provided which includes an image forming apparatus, which is located in a first local network and connected to the Internet through a first firewall server, an administration computer, which is located in a second local network and connected to the Internet through a second firewall server, and a relaying server, which is located outside the first local network and the second local network and is connected to the Internet. The administration computer transmits information for administrating the image forming apparatus to the relaying server, and accesses the relaying server to obtain information corresponding to a state of the image forming apparatus. The image forming apparatus accesses the relaying server at a predetermined timing to obtain the information from the administrating computer, and transmits information corresponding to the state of the image forming apparatus to the relaying server.

Image forming apparatus administration system

An image forming system, comprises an image forming apparatus including a first memory section to store a program to conduct a predetermined operation, and an image forming apparatus connecting section to connect the image forming apparatus with a network; and an administrating apparatus including an administrating memory section to store a rewrite program for the image forming apparatus, and an administrating apparatus connecting section to connect the administrating apparatus with the network. The image forming apparatus accesses the administrating apparatus through the network, obtains the rewrite program stored in the administrating memory section, and rewrites the program stored in the first memory section with the obtained rewrite program.

Growing community of inventors

Tokyo, Japan

Kei Yamada