Peter A. Franaszek is an American information theorist, an

IEEE Fellow , the Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and ot ...

, a research staff member emeritus at the IBM T.J. Watson Research Center and a former member of the IBM Academy of Technology. He received his Sc.B. from Brown University in 1962, and his Ph.D. from Princeton University in 1966. His work was mainly on the representation of information for storage and transmission, and the placement and movement of such information in computer systems. Specific areas include constrained coding, compression algorithms, I/O architectures, switching networks, disk defragmentation algorithms, concurrency control techniques, operating system schedulers, and compression techniques and architectures for systems with memory compression. Franaszek's coding research determined fundamental aspects of constrained coding, and obtained algorithms for code construction. 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. His work also served as a basis for key components in the proliferation of disk drives, compact disks (CDs), and digital versatile disks (DVDs). Specific codes he developed have been widely used in commercial data storage and transmission products. His (2,7) RLL code found widespread application in disk drives in the 1980s and later in magnetic and optical recording applications. Together with Albert Widmer, he designed

8b/10b encoding In telecommunications, 8b/10b is a line code that maps 8-bit words to 10-bit symbols to achieve DC balance and bounded disparity, and at the same time provide enough state changes to allow reasonable clock recovery. This means that the di ...

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). This forms the basis for the comoression/deflate engines embodied in the IBM z15 and Power9 processors.

Awards

* *2002: ACM

Paris Kanellakis Theory and Practice Award The Paris Kanellakis Theory and Practice Award is granted yearly by the Association for Computing Machinery (ACM) to honor "specific theoretical accomplishments that have had a significant and demonstrable effect on the practice of computing". It wa ...

*2009: IEEE Richard W. Hamming Medal for his contributions to the theory and practice of

run-length limited Run-length limited (RLL) is a line coding technique that is used to send arbitrary data over a communications channel with bandwidth limits. RLL codes are defined by four main parameters: ''m'', ''n'', ''d'', ''k''. The first two, ''m''/''n'', ...

channel coding for magnetic and optical storage.IEEE Richard W. Hamming Medal Recipients
an IEEE webpage (retrieved October 1, 2010)
IBM Research News, July 6, 2009 (retrieved October 1, 2010)

References

{{DEFAULTSORT:Franaszek, Peter Living people American information theorists Fellows of the IEEE Princeton University alumni Brown University alumni Year of birth missing (living people)