  Hybrid entangled states prove to be necessary for quantum information
processing within heterogeneous quantum networks. A method with irreducible
number of consumed resources that firmly provides hybrid CV-DV entanglement for
any input conditions of the experimental setup is proposed. Namely, a family of
CV states is introduced. Each of such CV states is first superimposed on a
beam-splitter with a delocalized photon and then detected by a photo-detector
behind the beam-splitter. Detection of any photon number heralds generation of
a hybrid CV-DV entangled state in the outputs, independent of
transmission/reflection coefficients of the beam-splitter and size of the input
CV state. Nonclassical properties of the generated state are studied and their
entanglement degree in terms of negativity is calculated. There are wide
domains of values of input parameters of the experimental setup that can be
chosen to make the generated state maximally entangled. The proposed method is
also applicable to truncated versions of the input CV states. We also propose a
simple method to produce even/odd CV states.
