  The event-triggered control with intermittent output can reduce the
communication burden between the controller and plant side over the network. It
has been exploited for adaptive output feedback control of uncertain nonlinear
systems in the literature, however the controller must partially reside at the
plant side where the computation capacity is required. In this paper, all
controller components are moved to the controller side and their dynamics use
sampled states rather than continuous one with the benefit of directly
estimating next triggering instance of some conditions and avoiding constantly
checking event condition at the controller side. However, these bring two major
challenges. First, the virtual input designed in the dynamic filtering
technique for the stabilization is no longer differentiable. Second, the plant
output is sampled to transmit at plant side and sampled again at controller
side to construct the controller, and the two asynchronous samplings make the
analysis more involving. This paper solves these two issues by introducing a
new state observer to simplify the adaptive law, a set of continuous companion
variables for stability analysis and a new lemma quantifying the error bound
between actual output signal and sampled transmitted output.
  It is theoretically guaranteed that all internal signals in the closed-loop
system are semiglobally bounded and the output is practically stabilized to the
origin. Finally, the numerical simulation illustrates the effectiveness of
proposed scheme.
