Signal generator with directly-extractable DDS signal source

Details Signal generator with directly-extractable DDS signal source Signal generator with directly-extractable DDS signal source

2006-10-11

2011-10-25

Gannon, Levi (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

C331S017000, C327S106000, C375S376000, C708S271000

Reexamination Certificate

active

08044725

ABSTRACT:
A signal generator including a DDS-signal source that is configured to operate according to the principle of direct digital synthesis (DDS), and a PLL signal synthesizer that is configured to operate according to the principle of phase locked loop (PLL) using an output signal from the DDS-signal source as a reference signal. The DDS-signal source can be connected via a direct connection, without further frequency division or mixing, directly to an output of the signal generator or directly to a level-adjustment device of the signal generator in order to generate a portion of an overall frequency range of an output signal of the signal generator.

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International Search Report of PCT/EP2006/009828 (English translation included), Form PCT/ISA/210 (second sheet and patent family annex), mailed Dec. 27, 2006.

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