VIBRATION APPARATUS FOR A HAND-HELD MOBILE DEVICE, HAND-HELD MOBILE DEVICE COMPRISING THE VIBRATION APPARATUS AND METHOD FOR OPERATING THE VIBRATION APPARATUS

摘要

The present invention relates to a vibration apparatus, a hand-held mobile device and a method for operating the vibration apparatus with which the time to obtain a detectable vibration effect is reduced while still being able to provide also a strong vibration effect. The vibration apparatus comprises a first weight member; a second weight member; a driving section coupled to said first weight member and operable to rotate at least said first weight member around a rotation axis; and a coupling mechanism adapted to provide coupling between said first weight member and said second weight member so that in a first state said first weight member is rotated by said driving section and in a second state said first weight member and said second weight member are rotated by said driving section.