Codex Corporation
Encyclopedia
Codex Corporation was a high-tech
company, based in Newton, Massachusetts
. The company was founded in July 1962 by James M. Cryer Jr. and Arthur Kohlenberg, with the support of Robert Gallager, who helped them as technology consultant http://www.ee.ucla.edu/~congshen/robert_gallager.pdf.
The company made key contributions to the evolution of modems. In the late 1960s, Codex was the first company to mass-market high-speed, 9600 bits per second modems that were based on Quadrature Amplitude Modulation
(QAM), and was also the first to introduce Large Scale Integrated Circuit
s (LSI) in modems http://quincy.hbs.edu:8080/lehman/company_histories/c/companyHistory.html?companyName=Codex%20Corp..
Codex Corporation went public in 1968, and in the early 70s it held about 20% of the high-speed modem market. After losing much of their profitable military business in the mid 70s, the company was in 1977 acquired by Motorola
.
In 2001, Motorola sold the remains of Codex Corporation to Platinum Equity
and renamed it Vanguard Managed Solutions
http://www.vanguardnetworks.com/company/overview/. Vanguard Managed Solutions has since been renamed Vanguard Networkshttp://www.vanguardnetworks.com/company/overview/.
High tech
High tech is technology that is at the cutting edge: the most advanced technology currently available. It is often used in reference to micro-electronics, rather than other technologies. The adjective form is hyphenated: high-tech or high-technology...
company, based in Newton, Massachusetts
Newton, Massachusetts
Newton is a city in Middlesex County, Massachusetts, United States bordered to the east by Boston. According to the 2010 U.S. Census, the population of Newton was 85,146, making it the eleventh largest city in the state.-Villages:...
. The company was founded in July 1962 by James M. Cryer Jr. and Arthur Kohlenberg, with the support of Robert Gallager, who helped them as technology consultant http://www.ee.ucla.edu/~congshen/robert_gallager.pdf.
The company made key contributions to the evolution of modems. In the late 1960s, Codex was the first company to mass-market high-speed, 9600 bits per second modems that were based on Quadrature Amplitude Modulation
Quadrature amplitude modulation
Quadrature amplitude modulation is both an analog and a digital modulation scheme. It conveys two analog message signals, or two digital bit streams, by changing the amplitudes of two carrier waves, using the amplitude-shift keying digital modulation scheme or amplitude modulation analog...
(QAM), and was also the first to introduce Large Scale Integrated Circuit
Integrated circuit
An integrated circuit or monolithic integrated circuit is an electronic circuit manufactured by the patterned diffusion of trace elements into the surface of a thin substrate of semiconductor material...
s (LSI) in modems http://quincy.hbs.edu:8080/lehman/company_histories/c/companyHistory.html?companyName=Codex%20Corp..
Codex Corporation went public in 1968, and in the early 70s it held about 20% of the high-speed modem market. After losing much of their profitable military business in the mid 70s, the company was in 1977 acquired by Motorola
Motorola
Motorola, Inc. was an American multinational telecommunications company based in Schaumburg, Illinois, which was eventually divided into two independent public companies, Motorola Mobility and Motorola Solutions on January 4, 2011, after losing $4.3 billion from 2007 to 2009...
.
In 2001, Motorola sold the remains of Codex Corporation to Platinum Equity
Platinum Equity
Platinum Equity, LLC is a private equity investment firm founded by Tom Gores in 1995. The firm focuses on leveraged buyout investments of established companies in the U.S. and Europe....
and renamed it Vanguard Managed Solutions
Vanguard Managed Solutions
Vanguard Managed Solutions was an LLC company, owned by Platinum Equity and specialized in monitoring live data networks from a Network operations center, while providing their own "Vanguard" brand of IP routers to target a dual need in the Data Communication's market. VanguardMS existed from...
http://www.vanguardnetworks.com/company/overview/. Vanguard Managed Solutions has since been renamed Vanguard Networkshttp://www.vanguardnetworks.com/company/overview/.