Nikil S. Jayant (1945 -- ) is an
Indian-American
Indian Americans or Indo-Americans are citizens of the United States with ancestry from India. The United States Census Bureau uses the term Asian Indian to avoid confusion with Native Americans, who have also historically been referred t ...
communications engineer. He was a prominent long-term researcher at
Bell Laboratories
Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984),
then AT&T Bell Laboratories (1984–1996)
and Bell Labs Innovations (1996–2007),
is an American industrial Research and development, research and scientific developm ...
and subsequently a professor at
Georgia Institute of Technology
The Georgia Institute of Technology, commonly referred to as Georgia Tech or, in the state of Georgia, as Tech or The Institute, is a public research university and institute of technology in Atlanta, Georgia. Established in 1885, it is part ...
. He received his Ph.D. in Electrical Communication Engineering from the
Indian Institute of Science, Bangalore, India in 1970.
Jayant's personal research has been in the field of digital
coding,
secure voice
Secure voice (alternatively secure speech or ciphony) is a term in cryptography for the encryption of voice communication over a range of communication types such as radio, telephone or IP.
History
The implementation of voice encryption dat ...
, and transmission of information signals. His research has been on techniques for speech encryption, packet voice, signal enhancement, robust vector quantization and image coding. He has made pioneering contributions to waveform quantization. He is the author of five books, and he has received 40 patents.
Adaptive differential pulse-code modulation
Adaptive differential pulse-code modulation (ADPCM) is a variant of differential pulse-code modulation (DPCM) that varies the size of the quantization step, to allow further reduction of the required data bandwidth for a given signal-to-noise rati ...
(ADPCM) was developed for voice coding in the early 1970s by Jayant with P. Cummiskey and
James L. Flanagan at
Bell Labs
Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984),
then AT&T Bell Laboratories (1984–1996)
and Bell Labs Innovations (1996–2007),
is an American industrial research and scientific development company owned by mul ...
.
[P. Cummiskey, N. S. Jayant, and J. L. Flanagan, "Adaptive quantization in differential PCM coding of speech," Bell Syst. Tech. J., vol. 52, pp. 1105—1118, Sept. 1973.]
He won the 1995
IEEE Donald G. Fink Prize Paper Award. In 1996, he was elected to the
National Academy of Engineering
The National Academy of Engineering (NAE) is an American nonprofit, non-governmental organization. The National Academy of Engineering is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of ...
for his contributions to the coding and compression of speech, audio and image signals.
References
External links
Faculty PagePersonal Homepage
Living people
1945 births
Indian emigrants to the United States
21st-century American engineers
Members of the United States National Academy of Engineering
Georgia Tech faculty
Indian Institute of Science alumni
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