91色情片

Video cameras in racing cars provide exciting live pictures for TV, but the
image is often spoilt by interference. Now the Formula One Administration in
Britain is patenting a system that gives better reception (GB 2345408). The new
system builds on cellphone technology: each car beams 2.5-gigahertz microwave
signals straight ahead to receivers strewn all around the track edges. The
transmitters change frequency as they 鈥渉and off鈥� smoothly from one receiver to
the next, under the control of a central computer that logs the car鈥檚 position
by its speed, the time and GPS satellite location. This ensures a much steadier
TV signal.