Abstract: An optical deflection device having: a rotor unit including a rotary polygon mirror having a plurality of mirror surfaces on the side surface portion and a holding member holding the polygon mirror; an air dynamic pressure bearing including a rotary bearing member to support the rotor unit and a fixed bearing member rotatably supporting the rotary member; and a stator unit which supports the fixed bearing member, including a winding coil oppositely arranged to the magnet, wherein prior to an assembly process, the adhesive agent layer is formed between the outer peripheral surface of the rotary bearing member and the inner peripheral surface of the holding member, the holding member and the rotary bearing member are set at the following condition, (the inner diameter of the holding member before the assembling)≧(the outer diameter of the rotary bearing member before the assembling).

Abstract: A light-beam deflecting apparatus is provided in which a polygon mirror is pushed against a flange to hold it stationary. The light-beam deflecting apparatus includes a base member; a polygon mirror rotatable with respect to the base member; a flange contacting the polygon mirror to hold the polygon mirror; and a pushing member to push the polygon mirror against the flange. One or both of contacting surfaces of the polygon mirror and the flange is/are finished to a surface roughness of Ry, which fulfills a first formula of Ry>3 &mgr;m or a second formula of 3 &mgr;m≦Ry≦20 &mgr;m.

Abstract: A base station for a multi-carrier TDMA radio communication system comprises a first management table for registering at least one candidate channel for single-channel communication selected from among multiple traffic channels each defined in terms of the carrier frequency and time slot number, a second management table for registering at least one group of candidate channels for multi-channel communication selected from among the multiple traffic channels, and a channel assigning unit which, in response to the reception of a channel assignment request from a mobile station, assigns at least one traffic channel to the requesting mobile station by making reference to one of the first and second management tables depending on the type of the mobile station.

Abstract: An apparatus for medical diagnostic imaging may include a database that relates help information with multiple types of attribute values and stores this information; an operations state acquisition part that acquires the attribute values that expresses the current operational status of the medical diagnostic imaging apparatus; a search part that searches the knowledge database, based on the attribute values; and a display that displays help information or a list of help information, based on the search results of the search part. As the present invention searches for and displays help information according to the operational status of the apparatus for medical diagnostic imaging, it is possible to provide the operator with help information suitable for a diagnosis currently being made.

Abstract: A method of multicasting data from a sender to first, second and third receivers through a network including first and second routers, the method comprising transmitting a data packet from said sender to said first, second and third receivers, detecting at said first, second and third receivers whether said data packet is properly received, transmitting a first reception information signal from said first receiver to said first router by a first path, transmitting a second reception information signal from said second receiver to said first router by a second path, determining, at said first router, in dependence upon said first and second reception information signals, whether said first and second receivers require re-transmission of said data packet and, if so, transmitting information relating to said first and second detection information signals to said second router, determining, at said second router, whether said third receiver requires re-transmission of said data packet and, if not, instructing sai

Abstract: A communication system using asymmetrical paths for performing asymmetrical routing using unidirectional paths for unidirectional packet communication without changing existing protocols in network systems configured for bidirectional packet communication using bidirectional paths. The communication system includes a receiver gateway installed in a satellite receiver station for performing address substitution on a packet transmitted from a personal computer (PC) to a server via an Internet network, and a transmitter gateway installed in a satellite transmitter station that receives the substituted packet and transmits the substituted packet to the server. Particularly, the transmitter gateway transmits the substituted packet to the PC from the server by transmitting the substituted packet to the receiver gateway by way of a satellite. The receiver gateway sends the substituted packet to the PC.

Abstract: A key distribution method and system are disclosed in which a sender and receivers share a common key information for performing a secure broadcast communication. By use of a center side apparatus, a center generates key information of a receiver in association with a subset inclusive of two or more elements of a proper finite set S1 on the basis of a space determined by a subset inclusive of two or more elements of another finite set S2. A sender side apparatus, a sender makes the multi-address transmission of key distribution data W inclusive of data generated corresponding to each element of the finite set S1 and data generated corresponding to a set of plural receivers through a communication network. By use of a receiver side apparatus, a receiver generates common key information between the sender and the receiver from the key distribution data W and the key information of the receiver.

Abstract: A gateway apparatus 104 connected to an access network 105 accommodating a plurality of ISP networks 108, and having an LAC function of transferring a PPP frame received from a user terminal to any one of the ISP networks via an L2TP connection set on the access network, includes: a cache server interface 112 for connection to a cache server; and a packet transfer controller (81A to 81C and 87) for selecting a PPP frame in which a Web contents request message is included in a payload field from a stream of PPP frames received from a user terminal, and transferring the request message indicated in the PPP frame to the cache server via the cache server interface.

Abstract: A gateway (GW) for relaying a communication between a public telephone network and a routing server for managing use status of the GW and a network are provided on the internet. When a connection request is received, the GW issues a request to retrieve a route in which the costs are minimum and a necessary bandwidth can be reserved. The routing server retrieves the route of the minimum costs using the bandwidth reservation status of the internet and the partner's telephone number and notifies the request issued GW of the address of the partner GW. The costs at that time point may be notified to the user and the user selects whether the communication is performed or not. By managing the current connection information established by each GW, if a necessary bandwidth cannot be reserved, an audio compression ratio may be changed.

Abstract: A mobile terminal, and an information providing method and system which immediately provides information, which the user of the mobile terminal desires, for the mobile terminal. Area and related service information are stored in corresponding relationship in a database. An information server which includes means for calculating the area of the destination of the mobile terminal loads information on the destination area from the database to the mobile terminal which moves toward the destination area, using radio communication means before the mobile terminal arrives at the destination area.

Abstract: A workflow representing an operation procedure is displayed on a monitor as a status window to notify a user of the operation procedure. The workflow is defined by a workflow protocol in which activities of an ultrasonic diagnostic apparatus for realizing operations associated with diagnosis are arranged in accordance with the operation procedure. Since each function of the ultrasonic diagnostic apparatus is controlled in accordance with the workflow protocol, the ultrasonic diagnostic apparatus can perform a diagnostic operation according to the workflow using the functions according to the workflow protocol.

Abstract: An optical deflection device having a rotary body that is fixed on a bearing and is structured rotatably by a magnet arranged to face a coil provided on a base side, wherein the rotary body is made of a magnet and a polygon mirror is fixed on the rotary body.

Abstract: A mobile terminal, and an information providing method and system which immediately provides information, which the user of the mobile terminal desires, for the mobile terminal. Area and related service information are stored in corresponding relationship in a database. An information server which includes means for calculating the area of the destination of the mobile terminal loads information on the destination area from the database to the mobile terminal which moves toward the destination area, using radio communication means before the mobile terminal arrives at the destination area.

Abstract: An optical deflection apparatus includes: a base member; a coil fixed to the base member; and a rotor unit rotatable to the base member, having a bearing member, a rotating body provided on the bearing member, having reflection surfaces, and a magnet provided on the rotating body in a position facing the coil. Either the magnet and the rotating body or the bearing member and the rotating body are adhered together by an adhesive agent whose Young's modulus after hardening is not more than 100 N/mm2.

Abstract: A glide head for inspecting an asperity, protrusion, or foreign material on a magnetic disk is disclosed. The glide head has a slider to be floated up to a predetermined height on the magnetic disk in accordance with the rotation of the disk. The slider has two substantially parallel rails protruding from the air-bearing surface of the slider and a sensitive rail protruding downward separately from the two substantially parallel rails. The two substantially parallel rails float the glide head and extend from the leading end of the slider toward the trailing end of it. The sensitive rail is located at the trailing end of the slider rather than trailing ends of the two substantially parallel rails. It is preferable that the area of the sensitive rail is the half of or less than the total area of the two substantially parallel rails.

Abstract: In a group communication method which autonomously builds up a closed communication network using a large number of unspecified communication terminals, a calling message including group identification information is broadcast to a large number of unspecified communication terminals from an arbitrary communication terminal, a response message including the group identification information is broadcast from other communication terminal, and a closed communication network is formed of the communication terminal and at least one communication terminal which transmits the response message within a given time whereby a group communication is performed by the communication message using the group identification information.

Abstract: An information processing system continues communication without affecting the operation of an application when a communication line is disconnected due to a communication error. When the application sends a communication connection request to another system, an MS Manager portion connects the application via a communication line. An MS portion sends a control handle, instead of a communication line handle, to the application. When the application sends data, the MS portion changes the control handle appended to the data to the handle of the actual communication line. When data is received from another system, the MS portion changes the handle of the actual communication line to the control handle and passes the control handle to the application. When the communication line is disconnected due to an error, the MS Manager portion connects the application to the other system via another communication line. The MS portion re-sends data not yet received by the other system if there are any.

Abstract: A system configuration evaluation/proposal support method of supporting the effect evaluation of a support system for enhancing the business processing ability of a human and a system configuration proposal suitable to a business process, and a tool for the method are provided in the following manner. Data of a functional process model expressing a business process on a basic function element unit of information processing, a system configuration candidate constructed by a combination of an information system resource and a human resource, the degree of relationship between a functional process item and a related functional item provided by the system configuration candidate, the degree of importance of the functional process item, the degree of functional sufficiency of the provided functional item, and the degree of relationship of both items is defined. An operation for evaluating the functional support suitability of the system configuration candidate is executed by a mapping function calculation.

Abstract: The invention concerns light-beam deflecting apparatus in which a polygon mirror is pushed against a flange to hold it stationary. The light-beam deflecting apparatus includes a base member; a polygon mirror being rotatable in respect to the base member; a flange contacting the polygon mirror to hold the polygon mirror; and pushing member to push the polygon mirror against the flange. One or both of contacting surfaces of the polygon mirror and the flange is/are finished to a surface roughness of Ry, which fulfills a first formula of Ry≧3 &mgr;m or a second formula of 3 &mgr;m≦Ry≦20 &mgr;m.

Abstract: A voice communication system, which is connected to LAN to which communication terminals are connected and to a public network to which telephones are connected, is provided with a communication server between the LAN and public network having different protocols from each other. The communication server enables a voice communication between a telephone on the public network and a communication terminal connected to the LAN by performing processing similar to that for a voice communication between two communication terminals connected to the LAN. The communication server determines whether an address of the other party inputted by a user is a communication terminal address or a telephone number, and transmits a voice communication request to a communication terminal of the other party when the address is a communication terminal address.