| 摘要 |
The invention concerns a device comprising: a sensor (403) sensing a value representing a non-sensory biological activity of the user's body, such as the pulse beat or the activity of a limb; means for filtering the value sensed by said sensor, supplying a relative position of said value in a cycle representing a temporal variation of said biological activity; and means (106) for making available to the user data representing said relative position, for example a bell, a display screen or a pointer on a dial.
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