(Nikkei BP Group)
(No.1 High-Tech News Site in Japanese)
| Casio Computer Develops GPS Navigation Wristwatch
January 13, 1999 (TOKYO) -- Casio Computer Co., Ltd. said that it has
developed a wristwatch with a built-in global positioning system (GPS)
|Other portable GPS devices are available, but Casio's new product is
the world's first to be incorporated into a watch.
Casio will launch the product around July as a new model
in the company's range of multi-function PRO TREK watches designed for
outdoor enthusiasts. It is likely to be priced around 60,000 yen (US$540).
The prototype model runs on a single lithium battery (CR2). The battery
can be used for more than 600 GPS readings, or for 10 hours if the watch
is set to automatically take readings at one minute intervals.
Casio said the GPS readings are based on signals the watch picks up from
satellites. Signals are received from a maximum of eight and a minimum
of three satellites for each reading. At least four seconds is needed
for the user's location to appear on the display from the time the signals
are picked up.
The device shows the wearer's exact longitude and latitude, in degrees,
minutes and seconds. In addition, if coordinates for a destination are
input in advance, it can graphically display the direction and remaining
distance from the current location. The GPS readings are accurate to
within a 30m radius, Casio said.
Also, the watch is equipped with a memory capacity so that as many as
200 individual readings can be stored. And it can record 100 sequences
of related positions, the company said. The latter of the memory options
will be useful for hikers, mountaineers and others who seek to maintain
a record of the route they have taken. The watch will even allow them
to display the route graphically on the LCD screen, which is fitted
with an electro luminescence backlight.
The watch weighs 148g, including the battery, and it measures 65mm by
66mm by 29mm, without the wrist strap. The time it displays is automatically
adjusted based on time signals transmitted from the GPS satellites.
(BizTech News Dept.)
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