System for timing a sports competition with two timing devices
AssigneeSwiss Timing Ltd
InventorFabien Blondeau
Life of this patent
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Abstract
The system for timing a sports competition includes a main timing device having a first time base, and a secondary timing device having a second time base (5). The two timing devices are capable of operating in parallel when the timing system is enabled. The two timing devices are arranged such that the second time base (5) is synchronized by using a reference timer signal (CLKref) generated by the first time base. The second time base (5) includes a phase lock loop (10, 11, 12, 13, 14, 17) for adapting the frequency of the second timer signal (CLK_T2) according to the frequency of the reference timer signal (CLKref).
Claims6
A system for timing a sports competition, which includes a main timing device having a first time base and a secondary timing device having a second time base, wherein both timing devices are capable of operating in parallel when the timing system is enabled in order to receive a race start pulse to start the race time measurement and a stop pulse for the race time measurement, both timing devices being arranged such that the two time bases are synchronised with each other in normal operating mode,
- wherein the second time base is synchronised using the first time base, and
- wherein the second time base includes a phase lock loop wherein a reference timer signal supplied by the first time base is compared to a second timer signal generated by a quartz oscillator so as to adapt the frequency of the second timer signal.
Dependencies are inferred from the claim text.