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公开(公告)号：US20220091250A1
公开(公告)日：2022-03-24
申请号：US17543175
申请日：2021-12-06
Applicant: STMicroelectronics S.r.l.
IPC: G01S13/53 , G01S7/03 , G01S7/41 , G01S7/285 , G01S7/282 , G01S13/931 , G01S13/34 , G01S13/42 , G01S13/536 , G01S7/35
Abstract: A method of operating a radar sensor system includes: frequency down-converting a reception signal that is chirp-modulated with a sequence of chirp ramps to an intermediate frequency signal; and high-pass filtering the intermediate frequency signal to produce a high-pass filtered signal. High-pass filtering includes: first high-pass filtering, with a first corner frequency, the intermediate frequency signal at each chirp in the chirp modulation of the reception signal; and replacing the first high-pass filtering with a second high-pass filtering with a second corner frequency, the first corner frequency being higher than the second corner frequency.
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Patent Agency Ranking
公开(公告)号：US10924194B2
公开(公告)日：2021-02-16
申请号：US16394633
申请日：2019-04-25
Applicant: STMicroelectronics S.r.l.
Inventor： Francesco Belfiore
Abstract: A radio-frequency transceiver device includes a transmission circuit generating a transmission signal at a transmission pad connected to a transmission antenna by modulating a radio frequency signal as a function of a control signal. First and second reception circuits receive first and second signals at first and second reception pads connected to first and second reception antennas. The received first and second signals are demodulated via the radio frequency signal to generate first and second demodulated reception signals. A control circuit operates during a reception test phase to generate only the control signal in order to test, as a function of the first and second demodulated reception signals, whether the received first signal corresponds to the received second signal. A reception error signal indicating a reception error is generated when the test indicates that the received first and second reception signals do not correspond.
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公开(公告)号：US11194035B2
公开(公告)日：2021-12-07
申请号：US16273737
申请日：2019-02-12
Applicant: STMicroelectronics S.r.l.
IPC: G01S13/53 , G01S7/03 , G01S7/41 , G01S7/285 , G01S7/282 , G01S13/34 , G01S7/35 , G01S13/931 , G01S13/42 , G01S13/536
Abstract: A method of operating a radar sensor system includes: frequency down-converting a reception signal that is chirp-modulated with a sequence of chirp ramps to an intermediate frequency signal; and high-pass filtering the intermediate frequency signal to produce a high-pass filtered signal. High-pass filtering includes: first high-pass filtering, with a first corner frequency, the intermediate frequency signal at each chirp in the chirp modulation of the reception signal; and replacing the first high-pass filtering with a second high-pass filtering with a second corner frequency, the first corner frequency being higher than the second corner frequency.
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公开(公告)号：US11808837B2
公开(公告)日：2023-11-07
申请号：US17543175
申请日：2021-12-06
Applicant: STMicroelectronics S.r.l.
IPC: G01S13/53 , G01S7/285 , G01S13/931 , G01S13/34 , G01S13/42 , G01S13/536 , G01S7/35 , G01S7/03 , G01S7/41 , G01S7/282
CPC classification number: G01S13/53 , G01S7/03 , G01S7/282 , G01S7/285 , G01S7/354 , G01S7/41 , G01S13/343 , G01S13/42 , G01S13/536 , G01S13/931
Abstract: A method of operating a radar sensor system includes: frequency down-converting a reception signal that is chirp-modulated with a sequence of chirp ramps to an intermediate frequency signal; and high-pass filtering the intermediate frequency signal to produce a high-pass filtered signal. High-pass filtering includes: first high-pass filtering, with a first corner frequency, the intermediate frequency signal at each chirp in the chirp modulation of the reception signal; and replacing the first high-pass filtering with a second high-pass filtering with a second corner frequency, the first corner frequency being higher than the second corner frequency.
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公开(公告)号：US11269051B2
公开(公告)日：2022-03-08
申请号：US16707021
申请日：2019-12-09
Applicant: STMicroelectronics S.r.l.
Inventor： Francesco Belfiore
IPC: G01S7/03 , G01S13/931 , H03K5/00 , G08G1/16
Abstract: A circuit includes an input port receiving an input signal having a first frequency. A phase-shifter network is coupled to the input port, receives the input signal, and produces therefrom first and second signals in quadrature with one another. Frequency multiplier circuitry has a common node and includes a first rectifier for rectifying the first signal to produce a first rectified signal having a second frequency that is twice the first frequency and to be applied to the common node, and a second rectifier rectifying the second signal to produce a second rectified signal having the second frequency and to be applied to the common node. A combination of the first and second rectified signals is available at the common node and includes harmonic contents at a frequency that is fourfold the first frequency.
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公开(公告)号：US20190250264A1
公开(公告)日：2019-08-15
申请号：US16273737
申请日：2019-02-12
Applicant: STMicroelectronics S.r.l.
CPC classification number: G01S13/53 , G01S7/03 , G01S7/282 , G01S7/285 , G01S7/354 , G01S7/41 , G01S13/343 , G01S13/42 , G01S13/536 , G01S13/931
Abstract: A method of operating a radar sensor system includes: frequency down-converting a reception signal that is chirp-modulated with a sequence of chirp ramps to an intermediate frequency signal; and high-pass filtering the intermediate frequency signal to produce a high-pass filtered signal. High-pass filtering includes: first high-pass filtering, with a first corner frequency, the intermediate frequency signal at each chirp in the chirp modulation of the reception signal; and replacing the first high-pass filtering with a second high-pass filtering with a second corner frequency, the first corner frequency being higher than the second corner frequency.
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