| 摘要 |
Remotely controlled tennis scoreboard, which operates from batteries or ordinary A/C (110 or 220 volts). The tennis scoreboard is lightweight and not bulky. The remote control units are small, lightweight battery powered units. The tennis scoreboard has two parts, first, the main electronics and display unit, and second, a handheld control unit for setting the score. Typically each player or side uses a remote unit, so that during a game two remote control units and the main display/electronics are in use. A highly visible display is used so that it is visible indoors or outdoors. It is visible in bright sunlight or under evening or night playing conditions (under the lights). A portable version of this invention weighs 10 pounds or less.
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