Abstract: According to one embodiment, a registry proxy server apparatus includes a connector, a register controller, a monitor and a change controller. The connector connects a plurality of IP telephone servers registering a plurality of IP telephone terminals and including a normal mode and an ecology mode. The register controller determines an arbitrary IP telephone server and allows the determined server to perform registry a IP telephone terminal as request source. The monitor monitors respective operational states of the plurality of IP telephone terminals and the plurality of IP telephone servers. The change controller changes an operation mode of at least one of the plurality of IP telephone servers based on a monitoring result obtained by the monitor.

Abstract: According to one embodiment, a communication apparatus includes an agent server module configured to connect to the telephone terminal connected to the public network, while bypassing the public network and the private network, and configured to receive a registration request including the terminal ID of the telephone terminal from the telephone terminal, and a controller which performs registration processing based on the registration request received by the agent server module via the bypass, and generates a session for terminal control with respect to the telephone terminal of a requester via the NAT router.

Abstract: According to one embodiment, a telephone exchange apparatus includes a memory stores a management table in which a connecting destination ID specifying a communication partner on the packet communication network and a first waiting time from a time of signal transmission to the communication partner up to a time of an arrival of a response signal are associated with each other, a monitoring unit refers to the management table and monitors presence or absence of the response signal from the communication partner within the first waiting time corresponding to connection ID of the communication partner based on the reference result, and a controller stops transmission of a signal necessary for communication establishment to the connecting destination ID in the management table and updates first waiting time corresponding to the connecting destination ID in the management table into second waiting time shorter than the first waiting time.

Abstract: According to one embodiment, a communication apparatus includes a receiver which receives a Dual Tone Multi Frequency (DTMF) signal for specifying a control request is transmitted from a management apparatus, the control request including connection destination information for specifying a management apparatus, the management apparatus is connected to the public network and remotely controls the communication process, a calculator which obtains a control request from the DTMF signal, and a controller which creates a session for management using a known protocol passable through the firewall with respect to the management apparatus based on the connection destination information included in the control request, and allows the management apparatus to execute a process based on contents of the control request.

Abstract: According to one embodiment, a communication system includes a plurality of voice-mail apparatuses which record a voice message transmitted from a telephone terminal in an arbitrary mail box among a plurality of mail boxes, and reproduces the voice message recorded in the arbitrary mail box in response to a reproduction instruction, a plurality of memory apparatuses which include a plurality of mail boxes connected to the plurality of voice-mail apparatuses via a data transmission path and shared among the plurality of voice-mail apparatuses, convert the voice message incoming from the data transmission path into a file format possible to be processed by the plurality of voice-mail apparatuses to record it in the arbitrary mail box, and store control programs and control data, and a controller which selects at least one memory apparatus, and executes processing of the voice message for the selected memory apparatus based on prescribed conditions.

Abstract: A main apparatus is used in a network telephone system for connecting a plurality of main apparatuses each accommodating at least one telephone terminal, through a communication network for packet transmission. The main apparatus includes a communication unit and a detection unit. The communication unit transmits and receives a connection confirmation signal used to confirm connection between the main apparatus and another main apparatus when a connection request is issued between telephone terminals on the communication network. The connection confirmation signal is defined by a communication protocol on the communication network. The detection unit detects a connection fault on the communication network on a basis of a result of the transmitting/receiving of the connection confirmation signal by the communication unit.

Abstract: A navigation system that searches for a route to a destination based on stored map data that provides navigation guidance to the destination along the route, including a controller that searches for a first route to the destination as a route to be recommended based on a calculation of a search cost, detects whether the first route includes a curve, changes the search cost for any detected curve, searches for a second route to the destination based on the search cost that has been changed and employs the second route as the route to be recommended instead of the first route.

Abstract: A vehicle navigation apparatus for searching for a route from an inputted place of departure to an inputted destination and performing guide, the apparatus comprising: a registration unit for associating a traveled route with a place of departure and a destination and thus registering the traveled route; a judgment unit for judging whether the same place of departure and destination as a place of departure and a destination of a registered route are inputted or not; a route search unit for reading out information of the registered route when it is judged by the judgment unit that the same place of departure and destination are inputted, and lowering weighting in searching for the route so as to search for the route; and a control unit for performing guide of the route found by the search by the route search unit. Thus, route guide preferred by a user can be performed.

Abstract: A map display device using an input unit for inputting a display scale, a memory for storing polygon map data, a drawing processing control unit for drawing a polygon map by loading polygon map data from the memory and a display unit for displaying an output from the drawing processing control unit, wherein the drawing processing control unit is provided with a function for determining a unit of a polygon map that should be drawn and drawing a polygon map of the determined unit.

Abstract: A navigation system includes an input device for inputting a destination, a current location detector for detecting current location of the vehicle, a camera for imaging an area to the rear of the vehicle, a route search program for searching for a route to the destination and a controller for providing guidance along the route determined by the route search. The controller controls the imaging by the camera according to route guidance information and determines whether a lane change is required in accordance with information obtained from the image. When it is determined that a lane change is required, the traffic situation in the vicinity surrounding the vehicle is recognized and guidance for the lane change is provided.

Abstract: A navigation system includes an input device for inputting a destination, a current location detector for detecting current location of the vehicle, a camera for imaging an area to the rear of the vehicle, a route search program for searching for a route to the destination and a controller for providing guidance along the route determined by the route search. The controller controls the imaging by the camera according to route guidance information and determines whether a lane change is required in accordance with information obtained from the image. When it is determined that a lane change is required, the traffic situation in the vicinity surrounding the vehicle is recognized and guidance for the lane change is provided.

Abstract: Disclosed is a navigation apparatus for a vehicle, which detects a present location of a mobile body, searches for a route to a destination based on map data and roads ranked in accordance with a degree of details of roads, and outputs information of the searched route. An optimal route from a present location to a destination is searched for using the map data every predetermined time or every predetermined distance. A storage medium incorporates a program that has the capabilities of the navigation apparatus.

Abstract: A navigation system that searches for a route to a destination based on stored map data that provides navigation guidance to the destination along the route, including a controller that searches for a first route to the destination as a route to be recommended based on a calculation of a search cost, detects whether the first route includes a curve, changes the search cost for any detected curve, searches for a second route to the destination based on the search cost that has been changed and employs the second route as the route to be recommended instead of the first route.

Abstract: A vehicle navigation apparatus for searching for a route from an inputted place of departure to an inputted destination and performing guide, the apparatus comprising: a registration unit for associating a traveled route with a place of departure and a destination and thus registering the traveled route; a judgment unit for judging whether the same place of departure and destination as a place of departure and a destination of a registered route are inputted or not; a route search unit for reading out information of the registered route when it is judged by the judgment unit that the same place of departure and destination are inputted, and lowering weighting in searching for the route so as to search for the route; and a control unit for performing guide of the route found by the search by the route search unit. Thus, route guide preferred by a user can be performed.

Abstract: Upon providing the same functions as those of telephone terminals in a telephone system to a mobile communication terminal outside the telephone system, the mobile communication terminal transmits a download request of system information to a main apparatus in the telephone system. This download request contains an user ID and a telephone number of the mobile communication terminal. The main apparatus compares the user ID contained in the download request with those stored and managed in the user database so as to check user's authenticity. The main apparatus then accesses the mobile communication terminal via a public network on the basis of the telephone number, and transmits the requested system information, thus providing the same functions as those of the telephone terminals.

Abstract: Disclosed is a navigation apparatus for a vehicle, which detects a present location of a mobile body, searches for a route to a destination based on map data and roads ranked in accordance with a degree of details of roads, and outputs information of the searched route. An optimal route from a present location to a destination is searched for using the map data every predetermined time or every predetermined distance. A storage medium incorporates a program that has the capabilities of the navigation apparatus.

Abstract: A map display device using an input unit for inputting a display scale, a memory for storing polygon map data, a drawing processing control unit for drawing a polygon map by loading polygon map data from the memory and a display unit for displaying an output from the drawing processing control unit, wherein the drawing processing control unit is provided with a function for determining a unit of a polygon map that should be drawn and drawing a polygon map of the determined unit.

Abstract: The invention provides a driver with notice of a certain traffic lane change on a road having many traffic lanes even if passing intersections exists within a predetermined distance before a guide intersection. Specifically, the invention concerns a vehicle navigation system for performing a route search on the basis of the input of a point, such as a destination and further performing route guidance along the searched route, which includes an information memory device for storing traffic lane information at intersections, a display for displaying the traffic lane information and a display controller for displaying traffic lane information at intersections on the display on the basis of the traffic lane data stored on the display. The display controller determines whether a passing intersection exists within a predetermined distance before the guidance intersection and controls so as to display lane information of the passing intersections and guidance intersection when the passing intersections exists.