Donald Leonard

Education

Born in New York City, Leonard studied Electrical Engineering at the New York University in the 1950s, where he received his Bachelor of Electrical Engineering in 1956 and his Master of Electrical Engineering in 1960.

Career

After graduation Leonard started his career as researcher at the New York University Research Laboratory After working for the New York Telephone Company some time, he joined American Telephone & Telegraph Company Bell labs in 1956. Here he started his lifelong career at American Telephone & Telegraph Company working on the further development of the Transmission System 1 (T-1), which were introduced by Bell Labs in 1962.

He later supervised the development of a Pulse-code modulation for the Telstar.

In 1963 he moved to Bell Labs in Merrimack Valley, where he was director of the Transmission Technology Laboratory from 1968 to 1970. In 1970 he moved to Indianapolis to directed the Telephone Laboratory.

From 1977 to 1980 in Columbus he was executive director of Crossbar and Switching Operations, and from 1980 to 1982 at Western Electric he was Vice President of Corporate Engineering. In 1982 he returned to Bell labs, where he succeeded William O. Fleckenstein as Vice President, Switching Systems, and where in 1991 he was appointed Vice President, Quality, Technology, and Process Research.

In 1994 he retired and got succeeded by Arun Netravali.

60. Leonard, "RELEASED." United States. Patent Number. 3,030,448. 17 April 1962.

Leonard, "Elimination of talk-off in in-band signaling systems" United States. Patent Number.

3,306,984. 28 February 1967.

Achievements

• Leonard has been awarded an honorary doctorate from Midwest College of Engineering. The Hispanic Engineer National Achievement Award in 1992 by the Society of Hispanic Professional Engineers. And in 1996 the Institute of Electrical and Electronics Engineers Simon Ramo Medal for his "engineering leadership in design and development of intelligent networks, digital electronic switching, transmission and signaling systems, and network databases."Pn In 1997 he was awarded an EMMY by the Academy of Television Arts and Sciences for his work on High Definition television