Abrégé

The invention relates to a method for generating traffic information to be used in a car navigation system, comprising the steps of acquiring traffic information data including information relating to a travel time of links making up a road on a map and for acquiring map data relating to the link, the map data comprising at least information on a road type of the link and checking if a volume of the traffic information data available in is sufficient for performing a statistical estimate for the travel time. In order to enhance the traffic information generated, it is proposed to use the steps of checking if the volume of traffic information data relating to links located in a target area is sufficient and adapting a size of the target area depending on the amount of available traffic information data.

Classes IPC  ?

• G06G 7/76 - Calculateurs analogiques pour des procédés, des systèmes ou des dispositifs spécifiques, p. ex. simulateurs de circulation, p. ex. circulation routière
• G08G 1/00 - Systèmes de commande du trafic pour véhicules routiers
• G08G 1/01 - Détection du mouvement du trafic pour le comptage ou la commande

Abrégé

Disclosed is a traffic information distribution apparatus 1 including date-time information in traffic information acquired by the traffic information acquire unit 12 or generated by the traffic information prediction unit, and accumulates the traffic information in the traffic information DB 13. When the traffic information distribution apparatus 1 receives distribution request information transmitted from the in-vehicle terminal 5, based on date-time information of reference traffic information held by the in-vehicle terminal 5 included in the distribution request information, the traffic information distribution apparatus 1 retrieves traffic information including the same date-time information as the date-time information of the reference traffic information from the traffic information DB 13. Then, difference traffic information generation unit 18 generates difference traffic information between the retrieved traffic information and traffic information to be distributed, and the traffic information distribution apparatus 1 distributes the generated difference traffic information to the in-vehicle terminal 5.

Classes IPC  ?

• G01C 21/00 - NavigationInstruments de navigation non prévus dans les groupes

Abrégé

The present invention provides a technique, by speech input, to specify a location, even when a name or the like of the location is not accurately known, while driving. An in-vehicle apparatus mounted in a vehicle has a speech recognition function, and stores information shown on a signboard and a noun substitute in storage. If speech inputted from a speech input device includes a noun substitute and further includes at least a part of the information shown on the signboard, a response is decided according to the information shown on the signboard, and the decided response is outputted from an output device.

Classes IPC  ?

• G10L 21/00 - Techniques de traitement du signal de parole ou de voix pour produire un autre signal audible ou non audible, p. ex. visuel ou tactile, afin de modifier sa qualité ou son intelligibilité

Abrégé

To improve operability of screen switching of native APs and virtual machine APs. It is an information processing device capable of executing native APs described in a native code and JavaAPs described in a Java (registered trademark) bytecode. A key event processing unit manages a current mode. It also decides display or non-display of each of images generated by the native APs and images generated by the Java APs according to the current mode which is managed. It further changes the current mode which is managed according to a type of a key event received from a key driver. A graphics driver superimposes and outputs the images decided to be displayed in predetermined order.

Classes IPC  ?

• G06F 3/00 - Dispositions d'entrée pour le transfert de données destinées à être traitées sous une forme maniable par le calculateurDispositions de sortie pour le transfert de données de l'unité de traitement à l'unité de sortie, p. ex. dispositions d'interface
• G06F 9/54 - Communication interprogramme
• H04N 13/02 - Générateurs de signaux d'image
• H04N 7/173 - Systèmes à secret analogiquesSystèmes à abonnement analogiques à deux voies, p. ex. l'abonné envoyant un signal de sélection du programme

Abrégé

A map update system includes: a navigation apparatus that provides guidance from a current position to a destination having been set based upon map data stored therein and downloads various types of information requested by a user; and a providing apparatus that provides the various types of information to be downloaded at the navigation apparatus, and: the providing apparatus transmits the various types of information and update information related to an update of map data to the navigation apparatus in response to a download request transmitted from the navigation apparatus; and the navigation apparatus issues a notice related to the update of the map data based upon the update information transmitted from the providing apparatus, while downloading the various types of information.

Classes IPC  ?

• G01C 21/32 - Structuration ou formatage de données cartographiques