|
US3271588A
(en)
*
|
1963-08-07 |
1966-09-06 |
Tele Signal Corp |
Digital keyer for converting d. c. binary signals into two different output audio frequencies
|
|
US3444320A
(en)
*
|
1964-03-21 |
1969-05-13 |
Nippon Electric Co |
Time division frequency shift transmission system
|
|
US3470473A
(en)
*
|
1965-10-29 |
1969-09-30 |
Rfl Ind Inc |
High speed data transmission system which modulates a high frequency,fsk oscillator to a lower transmission frequency
|
|
US3458835A
(en)
*
|
1965-12-17 |
1969-07-29 |
Xerox Corp |
Facsimile phase coherent synchronization
|
|
FR1496141A
(fr)
*
|
1966-06-03 |
1967-09-29 |
Cit Alcatel |
Générateur d'ondes modulées en fréquence
|
|
GB1210816A
(en)
*
|
1967-07-19 |
1970-11-04 |
Marconi Co Ltd |
Improvements in or relating to frequency shift telegraph systems
|
|
US3548309A
(en)
*
|
1967-09-14 |
1970-12-15 |
Bell Telephone Labor Inc |
Data rate converter
|
|
US3518552A
(en)
*
|
1968-03-27 |
1970-06-30 |
Motorola Inc |
Multi-frequency signal generation
|
|
US3582782A
(en)
*
|
1968-04-24 |
1971-06-01 |
Bell Telephone Labor Inc |
Harmonic sine wave data transmission system
|
|
US3614624A
(en)
*
|
1969-04-01 |
1971-10-19 |
Ncr Co |
Device for translating binary data to a jitter-controlled asynchronous frequency modulated signal
|
|
US3585503A
(en)
*
|
1969-10-31 |
1971-06-15 |
Us Army |
Binary psk transmission using two closely related frequencies to eliminate phase discontinuity
|
|
US3663754A
(en)
*
|
1970-05-18 |
1972-05-16 |
Totuus Communications Inc |
Communication system having modulator for generating orthogonal continuous phase synchronous binary fsk
|
|
US3932704A
(en)
*
|
1970-08-19 |
1976-01-13 |
Coherent Communications System Corporation |
Coherent digital frequency shift keying system
|
|
JPS5717389B2
(nl)
*
|
1973-08-24 |
1982-04-10 |
|
|
|
JPS5055250A
(nl)
*
|
1973-09-12 |
1975-05-15 |
|
|
|
US3938045A
(en)
*
|
1974-07-03 |
1976-02-10 |
Rca Corporation |
Transmitter for frequency shift keyed modulation
|
|
US4118662A
(en)
*
|
1977-06-24 |
1978-10-03 |
Harold James Weber |
Apparatus including bifrequency electromagnetic wave generation means for sympathetic excitation of detached conductive structures
|
|
GB1566095A
(en)
|
1978-05-13 |
1980-04-30 |
Marconi Co Ltd |
Modulation circuits
|
|
JPS5537002A
(en)
*
|
1978-08-24 |
1980-03-14 |
Fujitsu Ltd |
Fs modulation system
|
|
JPS5564463A
(en)
*
|
1978-11-08 |
1980-05-15 |
Hitachi Denshi Ltd |
Data transmitter
|
|
JPS63180294A
(ja)
*
|
1987-01-22 |
1988-07-25 |
Man Design Kk |
測定デ−タ送信装置
|
|
US6185264B1
(en)
*
|
1997-12-17 |
2001-02-06 |
Ove Kris Gashus |
Apparatus and method for frequency shift keying
|
|
WO2008030250A2
(en)
*
|
2006-09-07 |
2008-03-13 |
William Marsh Rice University |
Integrated embedded processor based laser spectroscopic sensor
|