公开(公告)号：US20240214010A1

公开(公告)日：2024-06-27

申请号：US18392372

申请日：2023-12-21

申请人： STMicroelectronics (Grand Ouest) SAS

发明人： Francois Sittler ,  Patrick Guyard

IPC分类号： H04B1/00 ,  H04B1/16

CPC分类号： H04B1/0096 ,  H04B1/0014 ,  H04B1/1607

摘要： The present disclosure relates to a method for demodulating a RF signal comprising the steps of: detecting if an analog to digital converter (ADC) of a Near Zero Intermediate Frequency (NZIF) receiver is in a clipping state; and if yes: determining and storing a first value (RSSI1) representative of the energy of a received signal demodulated by the Near Zero Intermediate Frequency (NZIF) receiver using a first intermediate frequency (IF1); determining and storing a second value (RSSI2) representative of the energy of the received signal demodulated by the Near Zero Intermediate Frequency (NZIF) receiver using a second intermediate frequency (IF2) corresponding to the opposite value of the first intermediate frequency (IF1), selecting the intermediate frequency corresponding to the lowest value of said first and second values.

公开(公告)号：US20240214250A1

公开(公告)日：2024-06-27

申请号：US18535788

申请日：2023-12-11

申请人： STMicroelectronics (Grand Ouest) SAS

发明人： Didier Harnay ,  Francois Sittler

IPC分类号： H04L27/227 ,  H04L27/00

CPC分类号： H04L27/2276 ,  H04L27/0014 ,  H04L2027/0016 ,  H04L2027/0051

摘要： The present disclosure relates to a method for demodulating a radio frequency (RF) signal comprising the steps of determining the nearest harmonic of a clock signal from a central frequency (Frx) of a received frequency band; and, if said nearest harmonic is in said frequency band, setting an intermediate frequency (IF) of a Near Zero Intermediate Frequency (NZIF) receiver to the difference (SpurOffset) between said central frequency (Frx) and said nearest harmonic.

公开(公告)号：US20230170922A1

公开(公告)日：2023-06-01

申请号：US17962961

申请日：2022-10-10

申请人： STMicroelectronics (Grand Ouest) SAS

发明人： Francois Sittler

IPC分类号： H04B1/00

CPC分类号： H04B1/0067 ,  H04B1/0064

摘要： The present description concerns a communication device including a first communication circuit coupled to a first antenna port of the communication device; a switch having first, second and third terminals, the first terminal being coupled to a second antenna port of the communication device, the switch being configured to switch between a first state in which the first terminal is coupled t the second terminal and a second state in which the first terminal is coupled to the third terminal; a third port coupled to the second terminal of the switch; and a second communication circuit coupled to the third terminal.