  In this paper we obtain a heavy meson bound state equation from the heavy
quark equation of motion in heavy quark effective theory (HQET) and the heavy
meson effective field theory we developed very recently. The bound state
equation is a covariant extention of the light-front bound state equation for
heavy mesons derived from light-front QCD and HQET. We determine the covariant
heavy meson wave function variationally by minimizing the binding energy
$\bar{\Lambda}$. Subsequently the other basic HQET parameters $\lambda_1$ and
$\lambda_2$, and the heavy quark masses $m_b$ and $m_c$ can also be
consistently determined.
