US 12,452,121 B2
Dynamic switching in radio receivers
Sriram Kankipati, Hyderabad (IN); and Paul Vincent, Hyderabad (IN)
Assigned to Nordic Semiconductor ASA, Trondheim (NO)
Filed by Nordic Semiconductor ASA, Trondheim (NO)
Filed on Nov. 20, 2023, as Appl. No. 18/515,046.
Claims priority of application No. 202211067255 (IN), filed on Nov. 23, 2022.
Prior Publication US 2024/0171446 A1, May 23, 2024
Int. Cl. H04L 27/26 (2006.01)
CPC H04L 27/2697 (2013.01) [H04L 27/2649 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A digital radio receiver comprising a configurable filter, a configurable re-sampler and a configurable mixer, the receiver being configured to operate in accordance with a predetermined radio communication protocol, wherein:
the predetermined radio communication protocol defines a first type of data packet that, when transmitted, occupies a first range of frequencies, and a second type of data packet that, when transmitted, occupies a second range of frequencies, the first range of frequencies being wider than the second range of frequencies;
the configurable filter, the configurable re-sampler and the configurable mixer are arranged to process the data packets of both the first and second type;
the configurable filter is configured, by default, to attenuate frequencies that fall outside of the first range; and
the digital radio receiver is configured to:
receive a data packet transmitted by a remote device;
determine whether the data packet is of the second type;
in response to the determination that the data packet is of the second type, configure the configurable filter to attenuate frequencies that fall outside of the second range, and configure the configurable re-sampler and the configurable mixer in dependence on the determination.