| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a positional information recorder, etc., for recording relative positional information when radio waves cannot be received and converting and recording the relative positional information into positioning information when the radio waves can be received. <P>SOLUTION: The positional information recorder includes: receiving means for receiving the radio signals; operating means for outputting signals for recording the positioning information; positioning information calculating means for positioning the geographical position based on the radio signals; positioning information recording means for recording the positioning information; movement locus information calculation means for calculating the displacement information composed of the direction from a reference position and the moved distance; relative positional information recording means for calculating the relative positional information regarding the relative position from the position which is to be the reference by the displacement information when the positioning information is not obtained when the signal is outputted and recording by relating to the information concerning the signal; and positional information conversion means for converting the relative positional information already recorded to the relative positional information recording means into the positioning information when the positioning information is obtained. <P>COPYRIGHT: (C)2012,JPO&INPIT |
