Abstract: A road-vehicle communication system enabling resumption of the transmission/reception from the rest of data between the vehicle and the road if the transmission/reception is interrupted. Specifically, the road-vehicle communication system includes a roadside apparatus for distributing a content and a vehicle-mounted device which can play a distributed content, the roadside apparatus is connected communicatively with the vehicle-mounted device, and a series of contents are distributed from the roadside apparatus to the vehicle-mounted device. The roadside apparatus includes a control unit for determining a content which the roadside apparatus starts transmitting to the vehicle-mounted device, which is a communication party, from among the series of contents and distributing the other contents succeeding the determined transmission start content. Thus, if the transmission/reception of data between the road and vehicle is interrupted, the transmission/reception can be resumed.

Abstract: An ITS vehicle-mounted device (17) sends/receives data in DSRC Town Car Life Navi multi-content form. As a vehicle enters the communication area of a roadside apparatus (11), the past drop-in place information is sent to the ITS vehicle-mounted device (17) so that the driver can receive beneficial advertisement information from the ITS vehicle-mounted device (17). Places where the power of the ITS vehicle-mounted device (17) is turned off may be registered as the past drop-in places contained in said past drop-in place information, and the places of an idling stop may also be registered in the past drop-in place information. In that case, the accuracy of the past drop-in place information is low. Highly accurate past drop-in place information can be produced, however.

Abstract: A vehicle-mounted device (10) which receives and outputs a radio wave containing at least direction information as information includes: detection means which detects the radio wave; and control means which compares the detection direction received from the direction detection means which detects the direction of the vehicle head to the direction information so as to judge whether the information is to be outputted. Thus, it is possible to provide a vehicle-mounted device which can provide only the information required by a user, a method for outputting the information, and an information providing system.

Abstract: A roadside device (15) is provided with a corresponding table in the case where there is an item of a new version of a taste data table to take over from user taste information in an item of an old version of the taste data table. In the corresponding table, item numbers “52”, “53”, “62” and “63” in the old version of the taste table, for example, are made to correspond to item numbers “52”, “53” and “63” in the new version of the taste table. An ITS vehicle-mounted device (17) sets user taste data in the item numbers of the old version corresponding to the item numbers of the new version to default values of the items in the new version for a transmitting-destination user of the taste data table of the new version and transmits the default data to an ITS vehicle-mounted device (17) of the transmitting-destination user.

Abstract: A utterance type road traffic information providing system comprises a roadside apparatus (100) installed along a road where vehicles travel, in a parking lot, or near a parking lot and adapted for transmitting alarm information by wireless communication, a utterance type vehicle-mounted device (200) adapted for receiving the alarm information by wireless communication from the roadside apparatus (100) and outputting the alarm information and mounted in the vehicle, and a administration server (300) for communicating various information with the roadside apparatus (100). The utterance type vehicle-mounted device (200) has a predetermined operating unit and a control unit. The control unit provides again a utterance type output from the beginning by sound according to the alarm information supplied from the roadside apparatus (100) when a predetermined operation of the operating unit is made. By a simple method, the alarm information is again confirmed (re-outputted).

Abstract: When notification information about a company code is received from a center device, a control unit of an in-vehicle device refers to uplink information which is generated for each qualified delivery company and stored in a storage unit and cross-checks the company code included in the uplink information with the received company code (step S8). Only when those are identical, the uplink information corresponding to the company code to which it is judged that those are identical is read out from the storage unit and written in an uplink information storage area of the storage unit of a DSRC unit (step S9). Security on content information delivery is improved.

Abstract: Provided is a navigation device which can automatically display on a map screen, an icon of a facility, information of which is not held in the navigation device. According to the navigation device (2), when it is judged that content information received from a roadside radio device (1) contains “object facility coordinate information” and “icon image information”, these information are written into a facility information table (252). When displaying a map screen and an existing facility icon on a display unit (22), it is judged whether the facility information table (252) contains facility icon information having coordinate information contained within a range indicated by the map screen. If YES, the corresponding facility icon is overlay-displayed on the map screen and the existing facility icon.

Abstract: Disclosed is an on-vehicle device which can effectively and surely provide content information. The on-vehicle device includes a control unit which causes a feature information storage region to store feature information having predetermined items as information on the on-vehicle device features (step S1). When a radio communication channel is established between the on-vehicle device and a radio relay device by a DSRC communication unit, the on-vehicle device reads out the feature information from the feature information storage region and causes the DSRC communication unit to transmit it to the radio relay device (step S4).

Abstract: Provided is an on-vehicle device which can build a charge system which can charge in accordance with use of advertisement information. The on-vehicle device stores uplink information including some or all of information indicating whether the advertisement information is received, information indicating whether the received advertisement information is displayed, and information indicating whether a vehicle (C) has stopped before reaching an advertisement object point indicated by the advertisement information. Each of the information is made to be a charging object for advertisement.

Abstract: A vehicle (12) starts from the front of a home (11a) and moves to a destination (11b). An area (area—1) with the home (11a) at the center is an area where the position of the home (11a) is estimated to be easily specified, and a road (13a) to be searched is a road required for searching a moving route of the vehicle (12). An in-vehicle device (200) does not transmit position information or the like acquired in the area (area—1) in response to a request of position information from a road side device (100). The in-vehicle device (200) transmits the position information or the like on the vehicle (12) acquired after the vehicle (12) moves out of the area (area—1) to the road side device (100). The position information on the vehicle is transmitted to the road side device by protecting personal information.