frequency-shift keying

(redirected from Mark tone)

frequency-shift keying

[′frē·kwən·sē ‚shift ′kē·iŋ]
(communications)
A form of frequency modulation used especially in telegraph, data, and facsimile transmission, in which the modulating wave shifts the output frequency between predetermined values corresponding to the frequencies of correlated sources. Abbreviated FSK. Also known as frequency-shift modulation; frequency-shift transmission.
References in periodicals archive ?
The Duyin tongyi hui decided to mark tone using a modification of the traditional four-corner method, sisheng dianfa [TEXT NOT REPRODUCIBLE IN ASCII] 'four tone dot system', in which ping tone is marked by a dot at the lower left corner of a Chinese character, shang marked by a dot at the upper left, qu in the upper right, and ru in the lower right.
16) A lost Portuguese-Chinese dictionary that was compiled by Matteo Ricci (1552-1610) together with Lazzaro Cattaneo (1560-1640) in 1598-1599 may have marked the five tones, though Ricci's surviving original version of the Dicionario Portugues-Chines, compiled in the 1580s with Michele Ruggieri (1543-1607), did not mark tones.
Interacting with reporters here, US State Department's deputy spokesman Mark Tone said Washington was worried over the loss of life in Kashmir during violent protests that has thrown normal life out of gear in the Valley.
Rory Newton, left, and Mark Tones prepare to set off
In court yesterday, Mark Tones admitted assaulting Miss Relton.
Adam Boyd, 23, a pounds 1million Hartlepool United striker, was with Annalee Relton when Mark Tones, 21, burst in.
And, as Mark Tones knows, you don't have to live in the countryside to carry off the look.
RURAL CHIC: Mark Tones and his daughter Summer are joined by Alison Fox, left, and Brigitte Burgon at Gee Gee Couture
As the pair lay on a bed, with Boyd naked, Miss Relton's ex-partner, Mark Tones, burst into the house in Bishop Cuthbert, Hartlepool, with his rugby player brother Henry.
Car salesman Mark Tones was given a nine-month conditional discharge for the attack on Miss Relton.
Mark Tones, team captain at the VAI UK, said: "One of our employees, Gavin Jamieson, ran the London Marathon for Daisy Chain and it was through him that we decided to support the charity again.
Mark Tones (Honda 250) enjoyed a clean sweep of three junior 250 victories in his first event back after a lengthy lay-off.