Position data obtaining system and method
First Claim
1. A position data obtaining system comprising a number of position data servers each covering a narrow service area and transmitting the own position data and name thereof, wherein:
- a portable terminal present in the service area of each position data server receives the position data and name thereof transmitted from the position data server, and stores the received position data and name thereof in an internal storing unit.
1 Assignment
0 Petitions
Accused Products
Abstract
Position data servers 102 each covering a narrow service area are installed in a number of places including underground markets and the like, and periodically transmit position data and name thereof. A portable terminal 101 present in the service area of a certain position data server 102 receives the position data and name thereof from the position data server 102, and stores the received data together with reception time data obtained from a clock 204 in a position data history storing unit 202. When it is required, he portable terminal 101 displays the position data history data in the position data history storing unit 202 on an image display unit 206. Thus, it is possible to obtain position data and also readily obtain name thereof even in an underground market or like place incapable of being reached by GPS signal.
13 Citations
22 Claims
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1. A position data obtaining system comprising a number of position data servers each covering a narrow service area and transmitting the own position data and name thereof, wherein:
a portable terminal present in the service area of each position data server receives the position data and name thereof transmitted from the position data server, and stores the received position data and name thereof in an internal storing unit. - View Dependent Claims (2, 3, 4, 5, 6, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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7. An activity history recorder for recording the activity history produced during movement of the user of a portable terminal in a predetermined area for a predetermined period of time, comprising a number of position data servers each covering and located in various space in a narrow service area and periodically transmitting the own position data and name thereof, wherein:
a portable terminal present in the service area of any one of the position data servers receives the position data and name thereof transmitted by the position data server, stores the received position data and name thereof together with the reception time data as position data history data in its own storing unit, and when it is required, reads out the stored position data history data and displays the read-out data on an image display unit. - View Dependent Claims (8)
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9. A position data obtaining method comprising steps of:
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transmitting position data and name data thereof from a position data server which is communicated with a portable terminal;
receiving by the portable terminal the position data and the name data from the position data server;
recording the received position data and name data together with time data obtained by the portable terminal in a memory; and
displaying, if required, the position data, name data and time data on a display. - View Dependent Claims (11, 12)
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10. A position data obtaining method comprising steps of:
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transmitting position data, name data and map data thereof from a position data server which is communicated with a portable terminal;
receiving by the portable terminal the position data, name data and map data from the position data server;
recording the received position data, name data and map data together with time data obtained by the portable terminal in a memory; and
displaying, if required, the position data, name data, map data and time data on a display.
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Specification