91色情片

General Electric of New York is patenting a way of making more accurate
Global Positioning System receivers (GB 2 339 639). Various tricks can be used
to boost the accuracy of the freely available, non-military version of GPS, but
the intensive processing involved makes heavy demands on a receiver鈥檚 batteries.
So to keep down cost and weight, GE鈥檚 portable receiver radios the GPS signals
it receives to a local station. This does the processing remotely and then tells
the receiver exactly where it is.