Clarion Co

Yoshiyuki Mizuno

Takeshi Homma

Keisuke Mutou

Hiroaki Kokubo

An information retrieving apparatus is provided which has excellent usability using voice inputs. Search queries input by a user via a touch panel or the like are used as voice recognition vocabulary. Further, the search queries are edited by use of morpheme information and/or other information in a database, thereby providing such voice recognition vocabulary that can be easily uttered by the user.

Information retrieving apparatus

An on-board apparatus includes: a map data storage unit in which map data that include altitude information are stored; a subject vehicle position detection unit that detects a subject vehicle position; and a calculation target geographical point setting unit that sets a calculation target geographical point based upon the subject vehicle position, wherein a road grade at the calculation target geographical point is calculated based upon altitudes of a plurality of geographical points that include at least a geographical point present ahead of the calculation target geographical point and a geographical point present behind the calculation target geographical point.

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Zama, Japan

Yoshiyuki Mizuno