John O. Limb
Encyclopedia
John O. Limb is an American engineer, known for fundamental contributions to the development of digital video communications and holder of a series of patents related to computer communications.
Born in Western Australia
, he got a Bachelor of Electrical Engineering
(B.E.E.) (1963) and a Ph.D.
on the thesis Vision Oriented Coding of Visual Signal (1967), both from the University of Western Australia
. Limb studied the human vision's role in the encoding of picture, partially under the direction of Dr. Albert Seyler and Professor Zig Budrikis.
He worked as researcher at the Postmaster-General's Department
's research laboratory in Melbourne
(1966–67) before moving to New Jersey
where joined Bell Labs
(1967), being manager of the department for visual communications research (1971–78) leading to patents. He then led the research department for distributed computer systems (1978–84) before going to Bellcore research where Limb was in charge of developing the new research division for communications sciences (1984–86) where he among other projects, developed medium access control protocols for local area network
s. Later he joined Hewlett Packard as director of laboratories in Bristol, England (1986–89), for the technology analysis group at Cupertino, California
(1989) and for the media technology group (1992–94). Distributed Computer Systems Research Department where the emphasis was on office information systems and local/metropolitan area networks. Recently, he has worked on optical communication
systems at Broadcom
, working at Atlanta, Georgia
.
He has held visiting professorships at the Technical University of Hanover (1975), the University of Sydney
(1983), and the University of Essex
(1985–86).
Limb started in Georgia Tech (1994) as Georgia Research Alliance
Eminent Scholar in "Advanced Telecommunications". He joined the faculty staff of both the Networking & Telecommunications Group in the College of Computing
, and the School of Electrical and Computer Engineering in the College of Engineering
. He created the Georgia Tech Broadband Telecommunications Center (1995).
Born in Western Australia
Western Australia
Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...
, he got a Bachelor of Electrical Engineering
Bachelor of Electrical Engineering
Bachelor of Electrical Engineering is an undergraduate academic degree offered to a student who completes three to five years of study in electrical engineering at a university...
(B.E.E.) (1963) and a Ph.D.
Ph.D.
A Ph.D. is a Doctor of Philosophy, an academic degree.Ph.D. may also refer to:* Ph.D. , a 1980s British group*Piled Higher and Deeper, a web comic strip*PhD: Phantasy Degree, a Korean comic series* PhD Docbook renderer, an XML renderer...
on the thesis Vision Oriented Coding of Visual Signal (1967), both from the University of Western Australia
University of Western Australia
The University of Western Australia was established by an Act of the Western Australian Parliament in February 1911, and began teaching students for the first time in 1913. It is the oldest university in the state of Western Australia and the only university in the state to be a member of the...
. Limb studied the human vision's role in the encoding of picture, partially under the direction of Dr. Albert Seyler and Professor Zig Budrikis.
He worked as researcher at the Postmaster-General's Department
Postmaster-General's Department
The Postmaster-General's Department was created at Federation in 1901 to control all postal services within Australia. Its minister was the Postmaster-General. In mid-1975 it was disaggregated into the Australian Telecommunications Commission and the Australian Postal Commission...
's research laboratory in Melbourne
Melbourne
Melbourne is the capital and most populous city in the state of Victoria, and the second most populous city in Australia. The Melbourne City Centre is the hub of the greater metropolitan area and the Census statistical division—of which "Melbourne" is the common name. As of June 2009, the greater...
(1966–67) before moving to New Jersey
New Jersey
New Jersey is a state in the Northeastern and Middle Atlantic regions of the United States. , its population was 8,791,894. It is bordered on the north and east by the state of New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania and on the southwest by Delaware...
where joined Bell Labs
Bell Labs
Bell Laboratories is the research and development subsidiary of the French-owned Alcatel-Lucent and previously of the American Telephone & Telegraph Company , half-owned through its Western Electric manufacturing subsidiary.Bell Laboratories operates its...
(1967), being manager of the department for visual communications research (1971–78) leading to patents. He then led the research department for distributed computer systems (1978–84) before going to Bellcore research where Limb was in charge of developing the new research division for communications sciences (1984–86) where he among other projects, developed medium access control protocols for local area network
Local area network
A local area network is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building...
s. Later he joined Hewlett Packard as director of laboratories in Bristol, England (1986–89), for the technology analysis group at Cupertino, California
Cupertino, California
Cupertino is an affluent suburban city in Santa Clara County, California in the U.S., directly west of San Jose on the western edge of the Santa Clara Valley with portions extending into the foothills of the Santa Cruz Mountains. The population was 58,302 at the time of the 2010 census. Forbes...
(1989) and for the media technology group (1992–94). Distributed Computer Systems Research Department where the emphasis was on office information systems and local/metropolitan area networks. Recently, he has worked on optical communication
Optical communication
Optical communication is any form of telecommunication that uses light as the transmission medium.An optical communication system consists of a transmitter, which encodes a message into an optical signal, a channel, which carries the signal to its destination, and a receiver, which reproduces the...
systems at Broadcom
Broadcom
Broadcom Corporation is a fabless semiconductor company in the wireless and broadband communication business. The company is headquartered in Irvine, California, USA. Broadcom was founded by a professor-student pair Henry Samueli and Henry T. Nicholas III from the University of California, Los...
, working at Atlanta, Georgia
Atlanta, Georgia
Atlanta is the capital and most populous city in the U.S. state of Georgia. According to the 2010 census, Atlanta's population is 420,003. Atlanta is the cultural and economic center of the Atlanta metropolitan area, which is home to 5,268,860 people and is the ninth largest metropolitan area in...
.
He has held visiting professorships at the Technical University of Hanover (1975), the University of Sydney
University of Sydney
The University of Sydney is a public university located in Sydney, New South Wales. The main campus spreads across the suburbs of Camperdown and Darlington on the southwestern outskirts of the Sydney CBD. Founded in 1850, it is the oldest university in Australia and Oceania...
(1983), and the University of Essex
University of Essex
The University of Essex is a British campus university whose original and largest campus is near the town of Colchester, England. Established in 1963 and receiving its Royal Charter in 1965...
(1985–86).
Limb started in Georgia Tech (1994) as Georgia Research Alliance
Georgia Research Alliance
The Georgia Research Alliance is an Atlanta, Georgia-based nonprofit organization that coordinates research efforts between Georgia's public and private sectors.-External links:* * at the New Georgia Encyclopedia...
Eminent Scholar in "Advanced Telecommunications". He joined the faculty staff of both the Networking & Telecommunications Group in the College of Computing
Georgia Institute of Technology College of Computing
The College of Computing at the Georgia Institute of Technology has roots stretching back to an Information Science degree established in 1964. In 1988, Georgia Tech president John Patrick Crecine elevated the School of Information and Computer Science to become the College of Computing, making...
, and the School of Electrical and Computer Engineering in the College of Engineering
Georgia Institute of Technology College of Engineering
The College of Engineering at the Georgia Institute of Technologyprovides formal education and research in more than 10 fields of engineering, including:...
. He created the Georgia Tech Broadband Telecommunications Center (1995).
Awards and honors
- 1978 IEEE FellowIEEE FellowAn IEEE member is elevated to the grade of IEEE Fellow for "unusual distinction in the profession and shall be conferred by the Board of Directors upon a person with an extraordinary record of accomplishments in any of the IEEE fields of interest"...
- 1973 IEEE Communications SocietyIEEE Communications SocietyThe IEEE Communications Society is a professional society of the IEEE. It is also known by the abbreviation ComSoc. The Society focuses on two principal areas: the science of, and education about, communications engineering with the goal of advancing the state of the field; and professional...
"Leonard G. Abraham Prize" for best paper in the field of communications systems - 1982 IEEE Donald G. Fink Prize Paper Award for the best review paper published in the Proceedings of the IEEE in 1980
- 1991 IEEE Alexander Graham Bell MedalIEEE Alexander Graham Bell MedalThe IEEE Alexander Graham Bell Medal is an award honoring "exceptional contributions to the advancement of communications sciences and engineering" in the field of telecommunications...
, along with C. Chapin CutlerC. Chapin CutlerCassius Chapin Cutler was an American electrical engineer at Bell Labs. His notable achievements include the invention of the corrugated waveguide and differential pulse-code modulation .-Biography:...
and Arun N. Netravali