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1.发明申请公开(公告)号：US20180152164A1
公开(公告)日：2018-05-31
申请号：US15609492
申请日：2017-05-31
Applicant: STMicroelectronics S.r.l.
Inventor： Angelo Scuderi , Gesualdo Alessi , Antonino Calcagno , Giorgio Maiellaro , Salvatore Scaccianoce
CPC classification number: H03G3/34 , H03F1/0216 , H03F1/305 , H03F3/189 , H03F3/19 , H03F3/21 , H03F3/45475 , H03F3/72 , H03F2200/451 , H03F2203/7221 , H03G1/0023 , H03G3/3005 , H03G3/3042 , H03G3/3047
Abstract: Systems and methods for switching on and off a power amplifier including a signal input receiving an input signal and a signal output providing an output signal. The power amplifier includes a control input receiving a gain control signal indicating a requested gain and a control input receiving a mute control signal indicating whether the signal output should be switched on or switched off. A control unit determines whether the signal output of the power amplifier should be switched on and/or off, and if switched on receives data identifying a switch-on ramp and if switched off receives data identifying a switch-off ramp. The control unit generates the mute control signal to switch on the signal output of the power amplifier on or off, and generates the gain control signal as a function of the data identifying the switch-on or switch-off ramp to thereby increase or decrease the gain control signal.
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公开(公告)号：US09257996B2
公开(公告)日：2016-02-09
申请号：US14741731
申请日：2015-06-17
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Angelo Scuderi , Antonino Calcagno , Salvatore Scaccianoce
CPC classification number: H03L7/02 , H03B2202/06 , H03C1/62 , H03L7/18 , H04B1/0475 , H04B1/38 , H04B7/00 , H04L25/4902
Abstract: An oscillator circuit may include a local oscillator to generate a carrier signal having a tunable frequency, a first modulator and a power amplifier coupled in cascade to the local oscillator to generate an output signal. The first modulator may be activated from a first modulating signal having a first frequency alternatively defining ON and OFF states of the first modulator. An estimator unit may receive the carrier signal during a time window and detect an estimated frequency variation of the carrier signal during the ON and OFF states. A compensation unit may include a second modulator to generate a compensation signal proportional to the estimated frequency variation and modulated with a second modulating frequency. The second modulating frequency may be substantially the same as the first modulating frequency, and the compensation signal may be added to a bias signal of the local oscillator to tune the tunable frequency.
Abstract translation: 振荡器电路可以包括本地振荡器以产生具有可调频率的载波信号，第一调制器和功率放大器级联耦合到本地振荡器以产生输出信号。 可以从具有第一频率的第一调制信号激活第一调制器，第一频率交替地限定第一调制器的接通和断开状态。 估计单元可以在时间窗口期间接收载波信号，并且在ON和OFF状态期间检测载波信号的估计频率变化。 补偿单元可以包括第二调制器，以产生与估计的频率变化成比例并且以第二调制频率调制的补偿信号。 第二调制频率可以与第一调制频率基本相同，并且补偿信号可以被添加到本地振荡器的偏置信号以调谐可调谐频率。
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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：US11150294B2
公开(公告)日：2021-10-19
申请号：US15691381
申请日：2017-08-30
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Giorgio Maiellaro , Angelo Scuderi , Angela Bruno , Salvatore Scaccianoce
Abstract: A radio-frequency receiver includes built-in-self-test (BIST) circuitry which generates a self-test signal. A local oscillator signal is divided. A self-test oscillation signal is generated, based, at least in part, on the frequency-divided local oscillation signal. The self-test signal is generated based on the self-test oscillation signal. The BIST circuitry includes a divider, which divides the self-test oscillation signal. The frequency-divided local oscillation signal and the divided self-test oscillation signal are used to perform one or more of generating the self-test oscillation signal and controlling the generation of the self-test oscillation signal. The radio-frequency receiver may be an automotive radar receiver.
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Patent Agency Ranking
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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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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公开(公告)号：US10312878B2
公开(公告)日：2019-06-04
申请号：US15609492
申请日：2017-05-31
Applicant: STMicroelectronics S.r.l.
Inventor： Angelo Scuderi , Gesualdo Alessi , Antonino Calcagno , Giorgio Maiellaro , Salvatore Scaccianoce
IPC: H03G3/34 , H03G3/30 , H03F3/19 , H03F3/21 , H03F1/02 , H03F1/30 , H03F3/189 , H03F3/45 , H03F3/72 , H03G1/00
Abstract: Systems and methods for switching on and off a power amplifier including a signal input receiving an input signal and a signal output providing an output signal. The power amplifier includes a control input receiving a gain control signal indicating a requested gain and a control input receiving a mute control signal indicating whether the signal output should be switched on or switched off. A control unit determines whether the signal output of the power amplifier should be switched on and/or off, and if switched on receives data identifying a switch-on ramp and if switched off receives data identifying a switch-off ramp. The control unit generates the mute control signal to switch on the signal output of the power amplifier on or off, and generates the gain control signal as a function of the data identifying the switch-on or switch-off ramp to thereby increase or decrease the gain control signal.
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公开(公告)号：US11860223B2
公开(公告)日：2024-01-02
申请号：US17479510
申请日：2021-09-20
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Giorgio Maiellaro , Angelo Scuderi , Angela Bruno , Salvatore Scaccianoce
CPC classification number: G01R31/2884 , G01R31/2832 , G01S7/4056 , G01S7/4069
Abstract: A radio-frequency receiver includes built-in-self-test (BIST) circuitry which generates a self-test signal. A local oscillator signal is divided. A self-test oscillation signal is generated, based, at least in part, on the frequency-divided local oscillation signal. The self-test signal is generated based on the self-test oscillation signal. The BIST circuitry includes a divider, which divides the self-test oscillation signal. The frequency-divided local oscillation signal and the divided self-test oscillation signal are used to perform one or more of generating the self-test oscillation signal and controlling the generation of the self-test oscillation signal. The radio-frequency receiver may be an automotive radar receiver.
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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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