  The pion scalar form factor along with all existing S-wave iso-scalar
$\pi\pi$-scattering phase shift data in the elastic region up to $1 {\rm
GeV}^2$ are applied for a determination of the $f_0(500)$ and $f_0(980)$ meson
parameters $m_{f_0(500)}=(360\pm33){\rm MeV}$, $\Gamma_{f_0(500)}=(587\pm
85){\rm MeV}$ and $m_{f_0(980)}=(957\pm77) {\rm MeV}$,
$\Gamma_{f_0(980)}=(164\pm142){\rm MeV}$ in a model independent way.
