  We discuss the viability of $gb \to tH \to ttb$ charged-Higgs signals at the
proposed LHC $pp$ supercollider, in the decay channel $tt \to (bq \bar q')(b
\ell \nu)$. Here one top quark decays hadronically and one semileptonically,
with all three $b$-quarks giving flavor-tagged jets. The principal backgrounds
come from $ttg,ttq,ttc$ and $ttb$ continuum production, with possible
mis-tagging of $g,q$ and $c$. We conclude that significant signals can be
separated from these backgrounds, for limited but interesting ranges of the
parameters $m_{H\pm}$ and $\tan\beta$, with the LHC energy and luminosity.
