| 摘要 |
<p>Installation (1) for controlling the playing time of a sporting event, in particular of the type found in basketball, comprising:-a portable system (2) for picking up and detecting a whistle blow (S4) that signals a stoppage in the playing time, said portable system converting the audible signals into digital signals, digitally processing these digital signals and outputting a digital refereeing signal (S23) in response to the detection of the whistle blow; and-a fixed system (3) for controlling the playing time, having a digital radio connection to the portable system and comprising control means (31) that stop and/or start a clock (32) that counts down the playing time in response to the reception of the digital refereeing signal. The invention also relates to just the portable system and to just the fixed system specially designed for the portable system, and also to a time-multiplexing digital audio communications terminal incorporating such a portable system.</p> |
