Abstract: An image processing device comprises an image data input means 2, an image data storage means 12 for storing the image data being input, an image data processing means 6 having multiple processing modes for outputting the stored image data, and a image data erasing means for erasing the image data stored in the storage means 12. The device further comprises erase count control means 8, 14 for controlling the number of times for erasing image data capable of having the number of times of erase set arbitrarily according to the security level required for each mode, and capable of having the set number of times of erase changed in mid-flow. Confidentiality is protected by performing erase operations repeatedly to the region storing the unnecessary image data according to the security level.

Abstract: An image processing device comprises an image data input means 2, an image data storage means 12 for storing the image data being input, an image data processing means 6 having multiple processing modes for outputting the stored image data, and a image data erasing means for erasing the image data stored in the storage means 12. The device further comprises erase count control means 8, 14 for controlling the number of times for erasing image data capable of having the number of times of erase set arbitrarily according to the security level required for each mode, and capable of having the set number of times of erase changed in mid-flow. Confidentiality is protected by performing erase operations repeatedly to the region storing the unnecessary image data according to the security level.

Abstract: An image processing device comprises an image data input means 2, an image data storage means 12 for storing the image data being input, an image data processing means 6 having multiple processing modes for outputting the stored image data, and a image data erasing means for erasing the image data stored in the storage means 12. The device further comprises erase count control means 8, 14 for controlling the number of times for erasing image data capable of having the number of times of erase set arbitrarily according to the security level required for each mode, and capable of having the set number of times of erase changed in mid-flow. Confidentiality is protected by performing erase operations repeatedly to the region storing the unnecessary image data according to the security level.

Abstract: An image processing device comprises an image data input means 2, an image data storage means 12 for storing the image data being input, an image data processing means 6 having multiple processing modes for outputting the stored image data, and a image data erasing means for erasing the image data stored in the storage means 12. The device further comprises erase count control means 8, 14 for controlling the number of times for erasing image data capable of having the number of times of erase set arbitrarily according to the security level required for each mode, and capable of having the set number of times of erase changed in mid-flow. Confidentiality is protected by performing erase operations repeatedly to the region storing the unnecessary image data according to the security level.

Abstract: An image processing device comprises an image data input means 2, an image data storage means 12 for storing the image data being input, an image data processing means 6 having multiple processing modes for outputting the stored image data, and a image data erasing means for erasing the image data stored in the storage means 12. The device further comprises erase count control means 8, 14 for controlling the number of times for erasing image data capable of having the number of times of erase set arbitrarily according to the security level required for each mode, and capable of having the set number of times of erase changed in mid-flow. Confidentiality is protected by performing erase operations repeatedly to the region storing the unnecessary image data according to the security level.

Abstract: An image processing device comprises an image data input means 2, an image data storage means 12 for storing the image data being input, an image data processing means 6 having multiple processing modes for outputting the stored image data, and a image data erasing means for erasing the image data stored in the storage means 12. The device further comprises erase count control means 8, 14 for controlling the number of times for erasing image data capable of having the number of times of erase set arbitrarily according to the security level required for each mode, and capable of having the set number of times of erase changed in mid-flow. Confidentiality is protected by performing erase operations repeatedly to the region storing the unnecessary image data according to the security level.

Abstract: An image processing device comprises an image data input means 2, an image data storage means 12 for storing the image data being input, an image data processing means 6 having multiple processing modes for outputting the stored image data, and a image data erasing means for erasing the image data stored in the storage means 12. The device further comprises erase count control means 8, 14 for controlling the number of times for erasing image data capable of having the number of times of erase set arbitrarily according to the security level required for each mode, and capable of having the set number of times of erase changed in mid-flow. Confidentiality is protected by performing erase operations repeatedly to the region storing the unnecessary image data according to the security level.

Abstract: An image processing device comprises an image data input means 2, an image data storage means 12 for storing the image data being input, an image data processing means 6 having multiple processing modes for outputting the stored image data, and a image data erasing means for erasing the image data stored in the storage means 12. The device further comprises erase count control means 8, 14 for controlling the number of times for erasing image data capable of having the number of times of erase set arbitrarily according to the security level required for each mode, and capable of having the set number of times of erase changed in mid-flow. Confidentiality is protected by performing erase operations repeatedly to the region storing the unnecessary image data according to the security level.

Abstract: A communication navigation system is provided with: a communication navigation terminal (5) and a communication center apparatus (3) with a communication network (2) for connecting them. The communication navigation terminal is provided with a traveling locus recording device (36, 24) for preferentially holding a traveling locus recorded when a movable body is driving out of a service area of the communication navigation system; and a processing device (20) for performing a route search and the like on the basis of this preferentially held traveling locus.

Abstract: A communication type navigation apparatus can communicate with a server device via a communication path. The navigation apparatus requests route search, and the server device executes route search to produce route information of a searched route. Then, the meshes necessary to travel along the searched route are determined, and the navigation apparatus obtains necessary mesh data from the server device. The navigation apparatus may request newer mesh data to the server device based on the updating information of the mesh data. By appropriately determining the mesh data to be and not to be downloaded from the server device, the communication cost necessary for obtaining the mesh data can be saved.

Abstract: A certain amount of basic map data is installed into the map data storage medium in the navigation apparatus at the time of initial setting or the like (this process will be hereinafter referred to as “pre-install”), and thereafter the user connect to the map data providing center to download necessary data according to need. Thus, the present invention offers efficient method of obtaining map data in the communication-type navigation system.

Abstract: A communication navigation system is provided with: a communication navigation terminal (5) and a communication center apparatus (3) with a communication network (2) for connecting them. The communication navigation terminal is provided with a traveling locus recording device (36, 24) for preferentially holding a traveling locus recorded when a movable body is driving out of a service area of the communication navigation system; and a processing device (20) for performing a route search and the like on the basis of this preferentially held traveling locus.

Abstract: A communication navigation system is provided with a communication center apparatus (3) and a communication terminal apparatus (4, 5), both of which transmit and receive information by two-way communication through a communication network (1, 2). The communication center apparatus is provided with: a processing device (72) for generating request correspondence information including route information indicating a planned route corresponding to request information and generating, if at least one portion of the planned route is present out of a service area of the communication navigation system, announcement information for announcing this fact; and a center side communication device (71, 73) for receiving the request information and transmitting the request correspondence information and the announcement information through the communication network.

Abstract: A communication navigation system is provided with a communication navigation terminal (5) and a communication center apparatus (3) with a communication network (2) for connecting them. The communication navigation terminal is provided with a route navigation device (20, 40, 50). If a movable body is on a route searched by the communication center apparatus, it performs a route navigation on the basis of a current position measured by a measurement apparatus (10, 18) and route information received from the communication center apparatus. If the movable body deviates from the searched route, it performs a simple navigation, in case that the current position is out of a service area of the communication navigation system, where it is not possible to transmit and receive the information through the communication network.

Abstract: A communication navigation system is provided with: a communication navigation terminal (5) and a communication center apparatus (3) with a communication network (2) for connecting them. The communication navigation terminal is provided with a traveling locus recording device (36, 24) for preferentially holding a traveling locus recorded when a movable body is driving out of a service area of the communication navigation system; and a processing device (20) for performing a route search and the like on the basis of this preferentially held traveling locus.

Abstract: A communication navigation system is provided with a communication center apparatus (3) and a communication terminal apparatus (4, 5), both of which transmit and receive information by two-way communication through a communication network (1, 2). The communication center apparatus is provided with: a processing device (72) for generating request correspondence information including route information indicating a planned route corresponding to request information and generating, if at least one portion of the planned route is present out of a service area of the communication navigation system, announcement information for announcing this fact; and a center side communication device (71, 73) for receiving the request information and transmitting the request correspondence information and the announcement information through the communication network.

Abstract: A communication type navigation apparatus can communicate with a server device via a communication path. The navigation apparatus requests route search, and the server device executes route search to produce route information of a searched route. Then, the meshes necessary to travel along the searched route are determined, and the navigation apparatus obtains necessary mesh data from the server device. The navigation apparatus may request newer mesh data to the server device based on the updating information of the mesh data. By appropriately determining the mesh data to be and not to be downloaded from the server device, the communication cost necessary for obtaining the mesh data can be saved.

Abstract: A certain amount of basic map data is installed into the map data storage medium in the navigation apparatus at the time of initial setting or the like (this process will be hereinafter referred to as “pre-install”), and thereafter the user connect to the map data providing center to download necessary data according to need. Thus, the present invention offers efficient method of obtaining map data in the communication-type navigation system.

Abstract: A route setting method for use in a navigation system for navigating a movable body is provided with a process area setting process of setting a process area, which corresponds to a present position of the movable body, includes a plurality of route points and has a size based on a performance of a recovery route searching process, in case that the present position of the movable body does not exist on a set route from an original departure point to a final destination point. The set route includes the route points and is set in advance. The route setting method is also provided with: a route point searching process of searching a closest route point, which is the closest to the final destination point among the route points on a boundary of or within the set process area; and the recovery route searching process of searching a recovery route from the present position of the movable body to the searched closest route point.

Abstract: An onboard navigation system detects a condition that a recognized present position of the vehicle belongs to a map of a peripheral part of a region covered by map data groups recorded on a recording disc. If a changer type driver is used as a player for reproducing map data, the recording disc being played is changed to a new disc in response to the detection of the above described condition. If a single driver is used, identification information of a corresponding disc is displayed. With these features, the disc being played is quickly changed to a required new disc.