Abstract: There is provided a communications-type car navigation system including a vehicle-mounted terminal and a server. When transferring, to the terminal, the result of a route searching which the server has performed, the server transfers the data that will satisfy the requirements of a route guiding method which the user wishes. Also, the server transfers the route data that has been compressed. Concerning the map data as well, the server transfers only the necessary attributes thereof. Moreover, the following conditions allow the operability to be enhanced: the selection of a map transferring method and the route guiding method where the driving state has been taken into consideration, and the selection of a guiding unit which the user wishes.

Abstract: A navi-server which is provided with information from a traffic information providing center, and presents and provides information made on the information to a terminal is characterized by being equipped with a first storage means storing the information provided from the traffic information providing center; a traffic jam statistical making means which makes traffic jam statistical information including traffic jam information in a predetermined point and a predetermined zone as well as a reliability of the traffic jam information, based on information stored in the first storage means; and a second storage means storing information made by the traffic jam statistical making means, wherein the navi-server presents and provides the information stored in the second storage means to the terminal, based on a request of the terminal and at a predetermined timing.

Abstract: A storage area of a removable storage medium is divided into a header and a plurality of log data writing areas. Each log data writing area records log data for printers having the same model name. The header is further divided into a plurality of header data storage areas, each area storing a single model name and the top address of a log data writing area indicating the destination for recording log data of devices having this model name. In this way, an association is established between the model name and the log data.

Abstract: In a navigation system, display screen handling PG 2032 prepares hierarchically a plurality of operation screens to receive the setting from the operator, and changes the operation screen displayed on display 208 according to the content of the operation to operation button group 207 by the operator, the operation screen under the display, and said layered structure. Further, communication control PG 2032 controls cellular phone 30 through cellular phone IF 204 when it is necessary to receive the information from the information service center 10 in order to process according to the setting given by the operator through each of a series of operation screens displayed on display 208, and establishes the communication line between information service center 10 and this system. And, after information is received, the communication line is cut off.

Abstract: When an auto-select program is executed in a reset process control program of a laser printer, an input prime signal valid mode is selected when the laser printer is not in sleep mode. Accordingly, the laser printer executes a reset process upon in response to an input prime signal. However, an input prime signal invalid mode is selected when the laser printer is in sleep mode. As a result, the laser printer ignores input prime signals. In this way, a user can prevent undesirable execution of the reset process, thereby reducing the number of unnecessary processes and lowering the running cost.

Abstract: The navigation device of the present invention has a storage device which stores map data including link data of respective links constituting roads on a map, and statistical data including travel time (moving speed) which is determined by statistical values of traffic information collected in the past, with respect to each of the links. Then, the navigation device uses for each departure time candidate, the map data and the statistical data of collection conditions corresponding to the statuses upon passing each of the route constituting links which constitute the route, so as to obtain the travel time for each of the route constituting links. Thereafter, the travel times of respective route constituting links thus obtained are summed up, and the travel time between the departure position and the destination is obtained.

Abstract: A recommended route is searched by the use of traffic information collected in the past. A map/statistical traffic data storage device 3 stores map data including link data of respective links constituting roads on a map, and statistical data including travel time or moving speeds of the respective links determined by statistical values of traffic information collected in the past. Said statistical data is classified every condition of collection of traffic information. A navigation device searches a recommended route from a departure position to a destination by using the map data stored in the map/statistical traffic data storage device and statistical data corresponding to a day type and a weather type which constitute conditions of search, out of statistical data stored in the map/statistical traffic data storage device 3.

Abstract: A map data transmitting method for transmitting a map through communication comprises steps of setting a specific route, specifying map data contained in a slicing range within a predetermined distance from the route having been set based upon map data that include road data and background data, newly creating new polygon data if an original polygon data contained in the background data included in the specified map data is partially contained in the slicing range and another portion of the polygon is outside the slicing range, by removing polygon data corresponding to the portion outside the slicing range from the original polygon data and transmitting a road map specified in conformance to the map data and background data containing the new polygon data.

Abstract: There is provided a communications-type car navigation system including a vehicle-mounted terminal and a server. When transferring, to the terminal, the result of a route searching which the server has performed, the server transfers the data that will satisfy the requirements of a route guiding method which the user wishes. Also, the server transfers the route data that has been compressed. Concerning the map data as well, the server transfers only the necessary attributes thereof. Moreover, the following conditions allow the operability to be enhanced: the selection of a map transferring method and the route guiding method where the driving state has been taken into consideration, and the selection of a guiding unit which the user wishes.

Abstract: In a communication-type navigation system for downloading map data according to the present invention, a reduction in the amount of map information to be transferred, correction of a position measured by a GPS, and delivery of advertisements are effected. In this system, a terminal 5 stores rough map data in advance. Then, when detailed map data is required, it is downloaded from a map data delivery center to the terminal 5. Further, together with the map data, GPS correction information is delivered to the terminal 5 from the map data delivery center 80. Still further, coupon information associated with an advertisement is displayed and an electronic mail on the coupon information is issued, by the map data delivery center.

Abstract: In a navigation system using a bird's-eye view display mode, map data on a plan view map are subjected to a perspective projection conversion to obtain drawing data on a bird's-eye view map. In this case, an input of the position of a view point is accepted, and a projection plane for a bird's-eye view is determined on the basis of the coordinates of a current position and a destination and the position of the view point so that the display positions of the two points which have been subjected to perspective-projection conversion are coincident with predetermined positions. Alternatively, an input of a scale is accepted, and the position of the view point and the projection plane are determined on the basis of the coordinates of the two points and the scale so that the display positions of the two points after the perspective projection conversion are coincident with predetermined positions and the drawing scale is coincident with the input scale.

Abstract: When the surface temperature of a heat roller is less than a toner melting temperature, the heat roller is not driven to rotate in a warm-up operation until the surface temperature of the heat roller reaches a rotatable temperature after a heater is turned ON. However, when the surface temperature drops below the rotatable temperature after the surface temperature once reached the rotatable temperature, the heat roller is immediately driven to rotate after the heater is turned ON, provided the temperature remains above a check temperature.

Abstract: In a navigation system using a bird's-eye view display mode, map data on a plan view map are subjected to a perspective projection conversion to obtain drawing data on a bird's-eye view map. An input of the position of a view point is accepted, and a projection plane for a bird's-eye view is determined so that the display positions of the two points which have been subjected to perspective-projection conversion are coincident with predetermined positions. Alternatively, an input of a scale is accepted, so that the display positions of the two points after the perspective projection conversion are coincident with predetermined positions and the drawing scale is coincident with the input scale. In a further alternative, an input of the projection angle is accepted, and the projection plane is determined on the basis of the projection angle and the position of the view point.

Abstract: A map display apparatus includes a map data memory which stores map data necessary for plotting a map of a predetermined region; a map display which reads map data out of the map data memory and plots a bird's-eye view display by projecting the map data read out from the map data memory onto a projection plane which makes a projection angle with a plane of the map data read out from the map data memory, the projection angle being greater than 0° and less than 90°, the bird's-eye view display including identifying marks which identify items in the bird's-eye view display; and an identifying mark overlap preventer which prevents identifying marks from overlapping one another in the bird's-eye view display.

Abstract: When a user wants to set a print density “4”, for example, only to a printer A and not a printer B, the user inputs an input command having a printer specifying command and the print density “4” as a corresponding operating condition, and sends the input command to the printer A via a network to which the printers A and B are connected. When the printer A receives the input command, a discriminating program compares its model number “8” stored in a ROM of the printer A with a model number “8” set in the printer specifying command. If the model numbers match, a setting program sets the print density “4” operation condition.

Abstract: By executing a storage control program, a CPU core stores in a time series detection signals from sensors, operation signals outputted to operating members, and error detection results in a ring buffer of a RAM whenever a change occurs in any of these data. The CPU core outputs the data stored in the ring buffer to a personal computer, for example, based on an output program. Accordingly, an operator can view the history of detection signals outputted from the sensors and the operation signals outputted to the operating members up to the point that the error is generated on the CRT screen of the personal computer. The operator can easily analyze the cause of the generated error.

Abstract: The present invention is related to a stereoscopic map displaying method beneficial for a navigation system in which map information is selected from a database according to a current location of a mobile object. The map database for storing map information comprises a plurality of types of information regarding a first map mesh provided with height information and a second map mesh with no height information wherein there is provided information for identifying that the second map mesh has no height information. A mode of a mark representing the moving display device is switched in accordance with a result whether first map data or second map data is utilized and displayed on the display apparatus superposing graphics data.

Abstract: An object of the present invention is to provide a vehicle control apparatus which makes it possible to share information by a plurality of devices and which can improve controllability. An OS switching means (OS-CH) switches a plurality of operating system (OS1, OS2). A shared object (CO) has a memory resource which can be referred to from the plurality of operating systems. The shared object (CO) shares at least road information, and the road information registered by the application of one of the operating systems can be referred to from the application of the other operating system.

Abstract: In order to provide a navigation system intelligibly providing various information which contains information to vary with time and is expected by the user, without increasing quantity of the information to be transmitted to a terminal mounted on a car, a navigation system is constituted with an information offering equipment and an information display system, and said information offering equipment has an individual information reception means to obtain individual information through a network and a data transmission means to transmit the received information to the information display system, and said information display system has a data receiver receiving the data from the information offering equipment, a map display means, an icon display means displaying the receive data on a map, an icon select means, and a detailed information display means which displays the detailed information of an icon selected.

Abstract: In a navigation system using a bird's-eye view display mode, map data on a plan view map are subjected to a perspective projection conversion to obtain drawing data on a bird's-eye view map. In this case, an input of the position of a view point is accepted, and a projection plane for a bird's-eye view is determined on the basis of the coordinates of a current position and a destination and the position of the view point so that the display positions of the two points which have been subjected to perspective-projection conversion are coincident with predetermined positions. Alternatively, an input of a scale is accepted, and the position of the view point and the projection plane are determined on the basis of the coordinates of the two points and the scale so that the display positions of the two points after the perspective projection conversion are coincident with predetermined positions and the drawing scale is coincident with the input scale.