Peter A. Franaszek is an American information theorist, an IEEE Fellow, a research staff member emeritus at the IBM T.J. Watson Research Center and a former member of the IBM Academy of Technology.
In early work associated with his "principal state" technique for block code construction, he designed MS43, a ternary code for data transmission, a modified version of which, MMS43, became a European standard.
Specific codes he developed have been widely used in commercial data storage and transmission products.
Together with Albert Widmer, he designed 8b/10b encoding used in gigabit telecommunication systems.
As an emeritus, he, along with B.Abali and L. Lastras, coinvented an approach to a data compression engine using a hybrid of a content addressible memory and hashing (US Patent 9836238).