Denso Corporation

Nippondenso Co., Ltd.

Tetsuro Adachi

Yukiyasu Ueno

Yoshitaka Ozaki

Tomonori Fukui

Akira Tsukamoto

Noboru Oyama

Fumiaki Fujie

An information provision system, which includes (i) a navigation apparatus in a vehicle and (ii) an information center, provides an occupant of the vehicle with information. The navigation apparatus and information center communicate via a wireless communication link. The navigation apparatus wirelessly acquires reception position information, which indicates several reception positions, from the information center. When determining that the vehicle reaches one of the reception positions, the navigation apparatus wirelessly acquires, in association with the reached reception position, display-related information containing (i) display position information indicating a display position and (ii) at-display-position window information indicating contents of a display window displayed at the display position. When determining that the vehicle reaches the display position, the navigation apparatus displays the contents of the corresponding display window indicated by the acquired at-display-position window information.

Information provision system and in-vehicle apparatus

An optical dust detector assembly includes an air duct member having an introductory portion and a base portion for permitting a flow of air passing therethrough, the duct member having a pair of radial holes formed in its peripheral wall, a pair of cylindrical casings secured to the peripheral wall of the duct member at both sides thereof and having respective opening ends communicating with the interior of the duct member through the respective radial holes thereof, a light emission element arranged within one of the casings to emit a light beam and pass it through the radial holes toward the other casing, and a light receiving element arranged within the other casing to receive the light beam emitted from the light emission element and passed through the radial holes. The air duct member is bent in such a manner as to form therein an inclined internal surface for deflecting upwardly the flow of air introduced through the introductory portion, and the radial holes are formed in a peripheral wall of the base portion of the duct member to face the flow of air deflected by the inclined internal surface so that foreign particles like rain or snow are not deflected upward toward the optical detector.

Optical dust detector assembly for use in an automotive vehicle

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Okazaki, Japan

Tetsuro Adachi