  In this note we use results of Minamoto and Amiot, Iyama, Reiten to construct
an embedding of the graded singularity category of certain graded Gorenstein
algebras into the derived categories of coherent sheaves over its projective
scheme. These graded algebras are constructed using the preprojective algebras
of $d$-representation infinite algebras as defined by Herschend, Iyama and
Oppermann. We relate this embedding to the construction of a semi-orthogonal
decomposition of the derived category of coherent sheaves over the projective
scheme of a Gorenstein algebra of parameter 1 described by Orlov.
