Pulse or digital communications – Repeaters – Testing
Patent
1989-09-27
1991-05-07
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
332100, 328 14, H04L 2712
Patent
active
050142852
ABSTRACT:
A frequency shift keying system for transmitting a signal which is a function of supplied data, includes first and second frequency generators producing first and second frequencies which differ in value by an amount which is a function of the maximum baud rate of the data. A counter is responsive alternately to one and the other of the two frequencies supplied thereto as a function of the data values for alternately counting up and down between values which differ by some given amount. The counter output in analog form is the transmitted signal. This system is particularly adapted to minimum frequency shift keying.
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Basile Philip C.
Kabernagel Bruce E.
Chin Stephen
General Electric Company
Smiley Raymond E.
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