Abstract: A navigation device includes an own vehicle position detecting unit configured to detect position information of own vehicle; a route setting unit configured to set a guidance route that guides the own vehicle to a destination on the basis of a first map including information of a traveling route and the position information of the own vehicle; a matching unit configured to match a position of the own vehicle as a first own position with the traveling route where the own vehicle travels on the first map on the basis of the position information of the own vehicle; a driving lane detecting unit configured to match the position of the own vehicle as a second own position with a driving lane where the own vehicle travels on a second map on the basis of the second map including information of the driving lane in the traveling route and the position information of the own vehicle; and a calculating unit configured to determine whether the second own position is included in the first own position.

Abstract: A processing method of an information processor for connecting an external device with a main body of the information processor. The processing method also performs processing of an application program with respect to the external device. The processing method includes connecting the external device to the main body. The processing method also includes determining whether the connected external device has been previously connected with the main body of the information processor.

Abstract: According to the present invention, when an application program on a personal computer executes processing by connecting an external device such as at CD drive, the application program is started and thereafter it is determined whether the external device associated with the application program is fitted with or not. When the external device is not fitted with, the processing is interrupted, and when a fitting of the external device is recognized, the interrupted processing is restarted.

Abstract: An information processing apparatus includes a setting section for setting a sum total of a usable time of at least one specific function under a predetermined condition, and a restricting section for restricting use of the specific function if a used time of the specific function exceeds the sum total of usable time of the specific function.

Abstract: A method for producing a silica glass optical fiber, which comprises coating carbon on the optical fiber with the use of the remaining heat of not less than 800.degree. C. possessed by the optical fiber just after heat wire drawing, for thermal decomposition of a carbon coat-forming gas comprised of one or more members selected from the group of halogenated hydrocarbons, hydrocarbons, and halogen molecules, which has 5 to 15 hydrogen atoms per 10 halogen atoms, and a reaction apparatus for coating carbon, wherein the area of the outer end of an exhaust region is greater than the transverse sectional area of a coating region, and the outer end is outwardly opened.

Abstract: An apparatus for driving a chain in which expansion and contraction of the chain due to an angular position of a sprocket is eliminated, the tensile stress imposed to the chain is reduced so that the chain travels smoothly. A guide cam is provided, which has a guide groove, one end of which is opened at a predetermined peripheral position of a sprocket where the rollers of the chain are released from the sprocket. The cam guides the rollers of the chain so that a winding angle of the chain around the sprocket is kept at a constant value and a constant traveling orbit is maintained irrespective to the angular direction of the sprocket.