  Considered to only exist in the fairy tales in the past, invisibility cloaks
have been successively converted into reality no matter in the spatial domain
or temporal domain. Inspired by the spatial cloaking, time gaps are utilized to
hide temporal events. However, a sophisticated synchronization for cloaking is
indispensable in these cloaking techniques, therefore leaving inconvenience for
the realization of the temporal cloak. Here, by exploiting temporal Talbot
effect, we propose a brand new scheme and concept to achieve a temporal cloak
without any synchronization for cloaking process, under which the
intensity-modulated event is directly turned into invisibility in intensity
through temporal averaging effect induced by the Talbot effect. We successfully
realize temporal cloak for periodic and pseudo-random signals respectively. We
also find that the higher order temporal Talbot effect is beneficial to
cloaking performance. Moreover, it is feasible to recover the data from the
intensity-cloaked waveform. This method and its concept render a distinct
perspective for temporal cloak, extend temporal cloak to the pulsed-wave and
promote the development of confidential communication.
