Abstract: The present invention includes a route acquisition unit (210) that acquires moving route information indicating a moving route of a vehicle, a route determination unit (240) that determines whether or not the moving route is a familiar travelling route, a situation acquisition unit (160) that acquires a past travelling situation on the moving route and a present travelling situation on the moving route when the moving route is determined as the familiar travelling route, and a warning determination unit (170) that determines whether or not to issue a warning relating to an event associated with the moving route, based on the past travelling situation on the moving route and the present travelling situation on the moving route.

Abstract: Conventional driving support systems have a problem that the driver of a user's vehicle is still at a hazard because the conventional driving support systems cannot make another vehicle irradiate, with its visible light, an obstacle existing at a position which the user's vehicle cannot detect with its on-vehicle radar, etc. According to the present invention, a determination unit 104 determines, on the basis of position information of a first moving object and position information of an obstacle, whether or not the first moving object detects the obstacle, and a controller 105 informs the first moving object of the existence of the obstacle when the determination unit 104 determines that the first moving object does not detect the obstacle.

Abstract: A danger information notification system (10) is a system to generate danger information (70) to be provided to a driver of a vehicle. A storage unit (23) of a server apparatus (20) stores danger reports (50) each indicating a geographical position and an event that has occurred at that position in the past. A control unit (21) of the server apparatus (20) extracts, from the danger reports (50) stored in the storage unit (23), information on one or more danger events that have occurred in a geographical range of a size corresponding to a speed of the vehicle, and aggregates the information extracted, thereby generating the danger information (70). This danger information (70) is transmitted to a vehicle-mounted apparatus (40) from the server apparatus (20) through a network (30), and is output by an information presentation unit (46).

Abstract: A wireless communication apparatus which performs wireless communication with onboard information equipment installed in a vehicle includes: receiver that receives media data from the onboard information equipment; playback processing unit that outputs the media data the receiver receives; communication state retaining unit that retains a communication state between the onboard information equipment and wireless communication apparatus; usage situation deciding unit that decides a usage situation of the wireless communication apparatus from the vehicle surrounding information and generates usage situation information; quality deciding unit that decides the quality of the media data using communication state information retained in the communication state retaining unit and the usage situation information generated by the usage situation deciding unit; and transmitter that transmits the quality generated by the quality deciding unit to the onboard information equipment as media data quality information.

Abstract: An image extraction unit (104) extracts an image of a specific photographic object from among images of photographic objects included in a photographic image photographed by a camera (200). A distance calculation processing execution unit (105) executes a distance calculation processing in which a distance from the camera (200) to a photographic object is calculated using an image of the photographic object included in the photographic image, exclusively to the image of the specific photographic object extracted by the image extraction unit (104).

Abstract: A driving-support-image generation device of the present invention includes: a driving-support-image memory that stores a plurality of driving-support images each indicative of a message content of a messaging object posted on a road or around a road; and an image generator that selects from among the driving-support images stored in the driving-support-image memory, one or plural driving-support images on the basis of a pre-set order of priority, and generates using the thus-selected driving-support images, an image to be displayed on a display in a vehicle.

Abstract: A driving-support-image generation device of the present invention comprises: a character recognizer that recognizes a character in an image indicative of a message content of a messaging object posted on a road or around a road; and an image processor that generates, based on the character recognized by the character recognizer and driving-support information related to the character, a driving-support image obtained by modifying the image of the messaging object into an image matched to the driving-support information.

Abstract: There are provided a wireless communicator that performs channel scanning, in a period during which wireless communication is not performed, to detect a frequency channel currently used by a surrounding wireless communication device; a frequency channel information storage that stores frequency channel information indicating the frequency channel detected by the wireless communicator; and a travel information acquisition unit that acquires travel information indicating motion of a vehicle. A switch controller performs switching control of a frequency channel used by the wireless communicator in accordance with the frequency channel information and the travel information acquired by the travel information acquisition unit.

Abstract: A device to estimate visibility change of surroundings, including: an image recognition unit that detects a landmark by analyzing an image; an information storage unit that records, as a detection history in the past, an image analysis result of the landmark detected by the image recognition unit and a detection position when the landmark is detected by the image recognition unit; and a visibility judgment unit that estimates, when the landmark corresponding to the detection history recorded in the information storage unit is detected again by the image recognition unit, change in visibility on the basis of comparison between a detection position when detected again and the detection position in the past recorded in the information storage unit.

Abstract: A wireless communication apparatus which performs wireless communication with onboard information equipment installed in a vehicle includes: receiver that receives media data from the onboard information equipment; playback processing unit that outputs the media data the receiver receives; communication state retaining unit that retains a communication state between the onboard information equipment and wireless communication apparatus; usage situation deciding unit that decides a usage situation of the wireless communication apparatus from the vehicle surrounding information and generates usage situation information; quality deciding unit that decides the quality of the media data using communication state information retained in the communication state retaining unit and the usage situation information generated by the usage situation deciding unit; and transmitter that transmits the quality generated by the quality deciding unit to the onboard information equipment as media data quality information.

Abstract: A data transmission device is provided including a monitoring unit 2 for monitoring a transmission time period of data and predicting a transmission timing with which the above-mentioned data will be transmitted next time from the transmission time period. The data transmission device delays the transmission timing of data in the data transmission device when the transmission timing of the data in the data transmission device is close to a transmission timing predicted by the monitoring unit 2, whereas commands a network I/F unit 1 to transmit the data in the data transmission device when the transmission timing of the data in the data transmission device is not close to the predicted transmission timing.

Abstract: There are provided a wireless communicator that performs channel scanning, in a period during which wireless communication is not performed, to detect a frequency channel currently used by a surrounding wireless communication device; a frequency channel information storage that stores frequency channel information indicating the frequency channel detected by the wireless communicator; and a travel information acquisition unit that acquires travel information indicating motion of a vehicle. A switch controller performs switching control of a frequency channel used by the wireless communicator in accordance with the frequency channel information and the travel information acquired by the travel information acquisition unit.

Abstract: A conditional access apparatus receives a filter condition from another conditional access apparatus to set the filter condition to a filter unit 1 thereof. When key information meeting the above-mentioned filter condition is outputted from the filter unit 1, the conditional access apparatus informs the key information to the other conditional access apparatus, and also informs the filter condition set to the filter unit 1 by the key information control unit 3 to the other conditional access apparatus and acquires key information meeting the above-mentioned filter condition from the other conditional access apparatus.

Abstract: An analysis unit extracts conditions for branching in a sequence from sequence data recorded in a recording unit. A condition setting unit presents the result of the condition extraction performed by the analysis unit to the user, accepts a condition setting which the user inputs in response to the presentation of the condition extraction result, and outputs a description of the condition setting as condition setting information to a reconstruction unit. The reconstruction unit reconstructs and outputs the sequence data according to the condition setting information from the condition setting unit, and outputs the sequence data reconstructed thereby as a simplified sequence.

Abstract: A data storage unit (103) stores an image frame in which an image frame which consists of coded data having a data loss or error received by a receiving unit (100) and complementary coded data which is received by receiving unit at a later time are rearranged into normal sequence. A redecoding unit (105) decodes the image frame stored in the data storage unit (103) with reference to one or more already-decoded image frames required for the decoding, and stores the decoded image frame in a frame additionally-storage unit (104). A decoding unit (101) decodes an image frame with reference to an image frame stored in either a frame storage unit (102) or the frame additionally-storage unit 104 according to a command from a control unit (106).

Abstract: A data transmission device is provided including a monitoring unit 2 for monitoring a transmission time period of data and predicting a transmission timing with which the above-mentioned data will be transmitted next time from the transmission time period. The data transmission device delays the transmission timing of data in the data transmission device when the transmission timing of the data in the data transmission device is close to a transmission timing predicted by the monitoring unit 2, whereas commands a network I/F unit 1 to transmit the data in the data transmission device when the transmission timing of the data in the data transmission device is not close to the predicted transmission timing.

Abstract: A moving image display includes a data forming unit 10 for extracting encoded data from received data; a decoding unit 13 for decoding moving image data from the encoded data extracted by the data forming unit 10, and for detecting not only error information at the decoding, but also visual characteristic information indicating a feature of a picture to be displayed; a storage unit 14 for storing the moving image data decoded by the decoding unit 13 as still image data; and a switching control unit 15 for outputting, as display data, the moving image data decoded by the decoding unit 13 or the still image data stored in the storage unit 14 in accordance with the error information and visual characteristic information detected by the decoding unit 13.

Abstract: A broadcast receiver stores history information about switching between sending-out stations, the history information including broadcast display state information, in a storage unit 7 while bringing the history information into correspondence with position information about a position of a vehicle, and compares current broadcast display state information acquired at a current position of the vehicle with broadcast display state information in history information which is extracted from the storage unit 7 and which corresponds to a position which is the same as the current position to determine that a sending-out station corresponding to history information which provides a display state which is the same as the display state of a broadcast wave currently being received as the vehicle travels is a switching destination.

Abstract: A conditional access apparatus receives a filter condition from another conditional access apparatus to set the filter condition to a filter unit 1 thereof. When key information meeting the above-mentioned filter condition is outputted from the filter unit 1, the conditional access apparatus informs the key information to the other conditional access apparatus, and also informs the filter condition set to the filter unit 1 by the key information control unit 3 to the other conditional access apparatus and acquires key information meeting the above-mentioned filter condition from the other conditional access apparatus.

Abstract: A data storage unit (103) stores an image frame in which an image frame which consists of coded data having a data loss or error received by a receiving unit (100) and complementary coded data which is received by receiving unit at a later time are rearranged into normal sequence. A redecoding unit (105) decodes the image frame stored in the data storage unit (103) with reference to one or more already-decoded image frames required for the decoding, and stores the decoded image frame in a frame additionally-storage unit (104). A decoding unit (101) decodes an image frame with reference to an image frame stored in either a frame storage unit (102) or the frame additionally-storage unit 104 according to a command from a control unit (106).