Nissan Motor Company Limited

Takeshi Oono

Masaki Watanabe

Minoru Tomikashi

Takeshi Mitamura

Masao Yamane

Daisuke Saitoh

Keiko Katsuragawa

Katsumi Ohta

Hideaki Hozumi

Hiroyuki Sakai

A recognition dictionary system includes a variant term accumulation unit, a variant frequency analysis unit, and a recognition dictionary update unit. The variant term accumulation unit is configured to accumulate and store a first variant term that has a meaning equivalent to a base term stored in a recognition dictionary and has first character string information that is different from character string information of the base term. The variant frequency analysis unit is configured to analyze an occurrence frequency of the first variant term accumulated and stored in the variant term accumulation unit and to determine the first variant term as a principal variant term when the occurrence frequency is higher than a first prescribed value. The recognition dictionary update unit is configured to update the recognition dictionary to register the principal variant term in the recognition dictionary as being associated with the base term.

Recognition dictionary system and recognition dictionary system updating method

An information presentation apparatus for a vehicle includes an indicator mounted on the vehicle for indicating a target direction and a control unit for controlling the indicator. The control unit includes a function for acquiring a current position of the vehicle and a reference direction of the vehicle, a function for specifying a target and acquiring a target position, a function for calculating a target angle that indicates a target direction against the reference direction based on the target position, the current position and the reference direction, and a function for generating a presentation command based on the calculated target angle so as to indicate the target direction by the indicator. According to the apparatus, information for specifying the target position can be provided.

Information presentation apparatus for vehicle and information presentation method for vehicle

In navigation system, method, and program for an automotive vehicle, a travel history of the vehicle which is made correspondent with a road map information is stored, a degree of a user's familiarity with one of predetermined regions for each of the predetermined regions in the road map information is calculated on the basis of the travel history of the vehicle and its corresponding road map information, and the road map information is produced in accordance with the calculated degree of the user's familiarity with the one of the predetermined regions.

Navigation system, method, and program for automotive vehicle

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Yokosuka, Japan

Takeshi Oono