The well known Kravchuk formalism of the harmonic oscillator obtained from
the direct discretization method is shown to be a new way of formulating di
screte quantum phase space. it is shown that the Kravchuk oscillator Hamilt
onian has a well defined unitary canonical partner which we identify with t
he quantum phase of the Kravchuk oscillator. The generalized discrete Wigne
r function formalism based on the action and angle variables is applied to
the Kravchuk oscillator and its continuous limit is examined.