| 摘要 |
A system and method for timing a plurality of entities, typically marathon runners over a premeasured course including a first transmitter at the starting line for transmitting a predetermined type signal. Each runner carries a timing unit actuable upon passing within a predetermined distance of the first transmitter. At another location is a second transmitter and as each runner passes within a predetermined distance the respective timing units are stopped. A read-out means is provided for having each timing unit connected thereto at the end of the event for obtaining the time elapsed.
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