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US 9,853,635 B2Granted
Double frequency-shift keying modulating device
AssigneeNational Chi Nan University
InventorsYo-Sheng Lin, Chien-Chu Chi, Ching-Hung Peng
Life of this patent
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Abstract
A double frequency-shift keying modulating device includes a modulation module. The modulation module receives an oscillating signal and a digital signal, and generates a modulation output signal that has a first frequency. The first frequency is associated with a frequency of the oscillating signal and varies periodically at a second frequency. The second frequency is associated with the digital signal and the frequency of the oscillating signal.
Claims15
A double frequency-shift keying modulating device comprising:
- a modulation module disposed to receive an oscillating signal and a digital signal, and configured to generate a modulation output signal that has a first frequency, wherein the first frequency is associated with a frequency of the oscillating signal and varies periodically at a second frequency, and the second frequency is associated with the digital signal and the frequency of the oscillating signal.
Dependencies are inferred from the claim text.