Fujitsu Corporation

Noboru Iwayama

Naoya Torii

Masahiro Matsuda

Masahiko Takenaka

Takayuki Hasebe

Kazuki Matsui

Tatsuro Matsumoto

Hiroyasu Sugano

Hidenobu Ito

Hideto Kihara

Kenichi Sasaki

Hitoshi Yamauchi

Kinya Yamazaki

Kenichi Utsumi

Ryota Akiyama

Akinori Iwakawa

Youji Kohda

Masashi Uyama

Naohisa Kawaguchi

Madoka Mitsuoka

Yuji Kijima

Koji Otani

A communication device transmits to a relaying device a transmission right grant request for requesting a grant of a transmission right to a transmitting device, and the relaying device determines whether the received transmission right grant request is a command associated with the transmission right of the communication device or a command associated with the transmitting device, and if it determines that it is the command associated with the transmitting device, it grants the transmission right to the transmitting device, and starts broadcasting of data being transmitted from the transmitting device. In addition, when receiving from the communication device an operation command for operating the transmitting device, the relaying device determines a type of the command and transmits it to the transmitting device.

Communication method, communication system, relaying device and communication device

A tag access control system capable of setting an appropriate parameter for controlling a reader/writer can be provided. The tag access control system includes a control portion that controls data communication between an IC tag and a reader/writer by sending a command to the reader/writer in accordance with a parameter and receiving an execution result; and a parameter adjustment portion that adjusts the parameter to an appropriate value. The parameter adjustment portion includes a parameter change portion that changes the parameter a plurality of times, a result storage portion that records execution results of commands based on a plurality of parameters that are changed and a calculation portion that calculates an appropriate parameter based on the execution results stored in the result storage portion.

Tag access control system, tag access control method and tag access control program

A tag access control system for controlling data communication between a plurality of reader/writers respectively having a plurality of antennas and one or more IC tags moving sequentially through communication ranges of the plurality of antennas includes a storing portion for storing movement information and reader/writer information, a command accepting portion for accepting a command, a dividing portion for generating a plurality of divided commands from the command, a detecting portion for detecting the IC tag located within the communication range of the antenna in one reader/writer of the plurality of reader/writers, a job controlling portion for sequentially assigning the plurality of reader/writers the plurality of divided commands according to the movement information and the reader/writer information, and a returning portion for returning a result of processing the command. In this way, the tag access control system can improve a success rate of reading data from and writing data in a plurality of IC tags without lowering a moving velocity of articles.

Tag access control system, tag access control method and recording medium storing tag access control program

Method for making delivery of products more efficient, and having deliveries made that are convenient for delivery recipients. When a user (delivery recipient) purchases a product from a vendor and applies for delivery, a management serveraccepts a delivery application from a vendor client. The management servernotifies the delivery recipient clientof the application for delivery, and prompts the user to designate delivery terms. For example, a delivery terms designation form is provided on a web page, and the URL for that web page is provided in the application for delivery notification. The delivery recipient clientaccesses the web page and refers to a list of products to be delivered to him or herself. Moreover, the delivery recipient designates delivery terms when he or she is certain of his or her schedule. A delivery business is notified of these delivery terms.

Delivery management method and device, and delivery information service method

Method and system for reporting to a source user before communication begins communication means usable by both the source and a destination user. Operable communication means at each user's information terminal are stored in a list DBin advance for each user. A selection devicereceives a destination user designation from the source user who is requesting communication, and acquires the usable communication means of the destination user and the source user respectively from the list DB. There are also cases in which the selection deviceacquires communication means usable by the source user from the selection deviceor a user terminal. Next, the selection devicecreates a candidate list describing communication means which both parties can use, and sends it from a WWW server, for example, to the source user terminal. Before communication begins, the candidate list is displayed at the source user terminal by a WWW browser, for example.

Communication means notification method and notification system

A notification is sent to a group of information terminals that conduct simultaneous communication by participating in a channel. The status change notification system includes a database DB and monitoring means . The DB is disposed outside the channel. The monitoring means monitors an occurrence of a status change in the DB, and generates a notification of a status change when a status change occurs. At least one of the group of information terminals includes notifying means . The notifying means receives a notification of status change from the monitoring means . The notifying means sends the notification to other of the group of information terminals to notify of the status change in a broadcasting manner.

Status change notification system for use in chat system channel

Messaging system and device for enabling users simultaneously and directly to send messages to numerous persons in cases where the users cannot connect directly to a chat system. A message is received by messaging device from access device , which is a telephone set for example, and is stored in message database as is without further processing. In addition to the message, messaging device also receives a message destination designation from access device . Messaging device reports a storing location for the message on an IRC, a URL for example, by sending a text message to the message destination. The IRC client notifies the user of the text message in real time. A user who views the text message makes a request to provider device to provide the message using acquisition device . Provider device accesses the message database, reads the message, and sends it to the acquisition device . Thereby, the message sent from access device is reported as is to another user.

Chat system and method for delivering additional information via another independent network

To notify users, in real time, of information that matches a search preference. Preference database , register , preference setting unit , recording unit , preferential search unit , notification unit and channel display section are provided. Preference database stores, associated with the user, one or more search preferences to search for a channel. Register registers search preferences in preference database . Preference setting unit receives the input of search preferences, and sends them to register , associated with the user. Recording unit stores the state of each channel. Preferential search unit judges, based on the state of each channel, whether each channel satisfies any search preference. Based on the judgment of preferential search unit , notification unit notifies the corresponding user terminal of the channel that meets any search preference of the user. Channel display section outputs the reported contents.

System for chat network search notifying user of changed-status chat network meeting user-tailored input predetermined parameters relating to search preferences

A file protection system for protecting a file which is stored in a storage unit includes a storage position deciding unit for deciding a positional-information corresponding to an area in which information of the file is stored in the storage unit and an encryption unit for encrypting the information of the file in accordance with a predetermined algorithm using at least a part of the positional-information decided by the storage position deciding unit. Information obtained by the encryption unit is stored in the area identified by the positional-information in the storage unit. A file protection system is operable when information of a file which was encrypted as described above is read out from a storage unit. The file protection system includes a decryption unit for decrypting the encrypted information of the file which is read out from an area in the storage unit using information corresponding the area, an extracting unit for extracting the positional-information from information obtained by the decryption unit, and a determination unit for determining whether or not the positional-information extracted by the extracting unit is equal to corresponding positional-information which is at least a part of the information corresponding to the area from which the encrypted information of the file is read out. When the determination unit determines that two pieces of positional-information are not equal to each other, it is determined that the information obtained by the decryption unit does not include correct information of the file.

File protection system, software utilization system using the file

The present invention was made in order to provide a technology capable of safely ciphering compressed and encoded image data irrespective of lines or media and carrying out a correct decoding operation without any shifts in the frames of ciphered moving pictures. Further, so as to prevent giving any means of encoding from comparison of image ciphered data and so as to generate totally different ciphered image data from the same data compressed images, a processing is executed not on an ECB mode but on such modes as CBC, CFB, OFB or the like. Moreover, as an initial vector, information different for frames included in a header, that is, time information from the start of an image or a frame sequential number, is used. In this way, even if compressed images within adjacent frames are accidentally the same, totally different ciphered data can be obtained.

Encoder and decoder

The present invention provides a data content utilizing device having data storing section for storing information obtained by encoding data contents and content identification information specifying the data contents, a utilization permitting device for generating utilization permission information used to decode data contents desired by a user and information converting section for loading data contents requested by the user from the data storing section and decoding the data contents only in the case where utilization permission information is generated by the utilization permitting device.

Method and device for utilizing data content

A software charging system includes a utilization permitting device for giving permission to use a software storing medium storing ciphered programs or data (software); and an authorization center capable of communicating with the utilization permitting device for setting a utilizable amount, totalling utilization amounts and charging a user. The utilization permitting device includes: a utilization permission processing part having a clock for obtaining date and time data, and having a date and time data storing unit for storing obtained date and time data until obtaining next data and time data; and a utilization amount managing part for calculating a software utilization amount of an end user. A software utilization amount is managed based on the number of days at the utilization permission processing part.

Software charging system and software data utilization permitting device

In accordance with the present invention, there is provided a transformation pattern generating mechanism comprising: a key input section for inputting a key for encryption; a transformation pattern generating section for generating a transformation pattern for transformation of input data; and an output section for outputting the generated transformation pattern; wherein, when a number sequence corresponding to a predetermined transformation pattern is input as the key to the key input section, said transformation pattern generating section generates and outputs the predetermined transformation pattern corresponding to the number sequence.

Transformation pattern generating device and encryption function device

Moving-picture data in a frame is encoded without depending on another frame of moving-picture data, and moving-picture data in a frame is encoded depending on another frame of moving-picture data. Whether each frame of moving-picture data is a frame which was encoded without depending on another frame of moving-picture data or which was encoded depending on another frame of moving-picture data is determined. The frame of moving-picture data was thus determined as having been encoded without depending on another frame of moving-picture data. The enciphered moving-picture data includes the frame of moving-picture data and the frame of moving-picture data which was determined as being the frame which was encoded depending on another frame of moving-picture data.

Growing community of inventors

Kawasaki, Japan

Noboru Iwayama