US 11,750,235 B2
Radio frequency receiver circuit
Philip Eugene Quinlan, Glounthaune (IE); Joana Rochelle Ortiz Maramba, Puting Kahoy (PH); Catherine Francisco Andaya, Metro Manila (PH); Erwin Paul Ramos Santiago, Las Pinas (PH); Vernon H. Valles, Karangalan Village (PH); and Juan Miguel Judit Ugsimar, Las Pinas (PH)
Assigned to Analog Devices International Unlimited Company, Limerick (IE)
Filed by Analog Devices International Unlimited Company, Limerick (IE)
Filed on Jun. 24, 2021, as Appl. No. 17/357,699.
Prior Publication US 2022/0416828 A1, Dec. 29, 2022
Int. Cl. H04B 1/16 (2006.01); H04B 1/18 (2006.01); H04B 1/30 (2006.01)
CPC H04B 1/1607 (2013.01) [H04B 1/18 (2013.01); H04B 2001/307 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A radio-frequency, RF, receiver circuit, for monitoring simultaneously a plurality of frequencies, the RF receiver circuit comprising:
a sub-sampler configured to:
receive an RF signal at any of the plurality of RF frequencies;
receive from a local oscillator a first oscillating signal having a first oscillator frequency; and
sub-sample, using the first oscillating signal, the received RF signal in order to generate and output an analog sub-sampled signal; and
a signal processing system coupled to an output of the sub-sampler and configured to:
receive the analog sub-sampled signal from the output of the sub-sampler;
demodulate the analog sub-sampled signal to produce a demodulated analog sub-sampled signal; and
recover from the demodulated analog sub-sampled signal a digital code that is encoded within the RF signal.