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US 9,780,944 B2Granted
Frequency control data synchronization
AssigneeAtmel Corporation
InventorsEric Sachse, Dietmar Eggert, Sascha Beyer, Wolfram Kluge
Life of this patent
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Abstract
In an embodiment, a circuit includes a synchronizer configured to generate a trigger signal synchronized to a reference clock. A synthesizer is configured to synthesize a signal according to frequency control data in response to the trigger signal. A radio receiver is configured to process a carrier signal according to the synthesized signal. A phase measurement unit is configured to measure a first channel frequency response based on the processed carrier signal.
Claims20
A circuit comprising:
- a synchronizer configured to generate a trigger signal synchronized to a reference clock;
- a synthesizer configured to synthesize a signal according to frequency control data in response to the trigger signal;
- a radio receiver configured to process a carrier signal according to the synthesized signal and
- to measure a first channel frequency response based on the processed carrier signal.
1 more element
A method comprising:
- generating, by a synchronizer, a trigger signal synchronized to a reference clock;
- synthesizing, by a synthesizer, a signal according to frequency control data in response to the trigger signal;
- processing, by a radio receiver, a carrier signal according to the synthesized signal;
- and
- measuring, by the radio receiver, a first channel frequency response based on the processed carrier signal.
2 more elements
A system comprising:
- a microcontroller;
- an interface configured to receive a channel center frequency change command from the microcontroller;
- a synchronizer coupled to a reference clock, the synchronizer configured to generate a trigger signal synchronized to the reference clock;
- and
- a phase-locked loop (PLL) synthesizer coupled to the reference clock, the PLL synthesizer configured to synthesize a signal with a channel center frequency specified by the channel center frequency change command in response to the trigger signal;
- a radio receiver coupled to the PLL synthesizer and configured to process a carrier signal according to the synthesized signal and
- to measure a first channel frequency response based on the processed carrier signal.
4 more elements
Dependencies are inferred from the claim text.