NDLI: Andrew Viterbi's fabulous formula [Medal of Honor]

Content Provider	IEEE Xplore Digital Library
Author	Perry, T.S.
Copyright Year	1964
Description	This paper presents the story of an unusually bright and hard working professor who wanted to explain a difficult concept in clear and simple terms in order to better teach his students. Viterbi working from Jet Propulsion Laboratory helped developed phase-lock loop. Viterbi also started consulting on applications of his algorithms and called their firm Linkabit. The company worked on various defense and commercial satellite modems and terminals. It also built a satellite signal scrambler called Videocipher for the cable channel HBO. Years later OmniNet was founded, envisioned mobile satellite network and hired Qualcomm to build it. Qualcomm's solution was to use spread-spectrum communications and used the Viterbi algorithm to help extract the original signal from the noise. With the launch of OmniTracs, which is a trucking systems, scrappy start-up took on the mobile phone industry. Viterbi and his colleagues also figured out a way to have each handset and tower analyze the quality of its own signals as well as the other conversations being transmitted around it; the tower would then adjust power usage until the handset was transmitting just enough signal to work. One of Viterbi's earliest investments was in VoiceSignal Technologies, which used the Viterbi algorithm for voice recognition systems in cellphones, including the iPhone.
Starting Page	47
Ending Page	50
Page Count	4
File Size	18136840
File Format	PDF
ISSN	00189235
Volume Number	47
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-01-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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