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公开(公告)号：US20240195521A1
公开(公告)日：2024-06-13
申请号：US18443117
申请日：2024-02-15
Applicant: STMICROELECTRONICS S.R.L.
IPC: H04J3/06
CPC classification number: H04J3/0685 , H04J3/0617
Abstract: An integrated circuit includes a control circuit, a primary sensor device coupled to the control circuit, and a plurality of groups of secondary sensor devices coupled to the primary sensor device. The primary sensor device receives a master clock signal from the control device and outputs, to each group of secondary sensor devices, a respective secondary clock signal with a frequency lower than the primary clock signal. The primary sensor device generates primary sensor data. The primary sensor device receives secondary sensor data from each group of secondary sensor devices. The primary sensor device combines the primary sensor data and all of the secondary sensor data into a sensor data stream with a time division-multiplexing scheme and outputs the sensor data stream to the control circuit.
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公开(公告)号：US20220345525A1
公开(公告)日：2022-10-27
申请号：US17466837
申请日：2021-09-03
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Alessandra Maria RIZZO PIAZZA RONCORONI , Matteo QUARTIROLI , Rossella BASSOLI , Paola BALDRIGHI
Abstract: The present disclosure is directed to a device and method for generating and transmitting a TDM signal including both raw data and processed data. The device includes a sensor having a time division multiplexing (TDM) interface. The TDM interface transmits both raw data and processed data in a single TDM signal by reserving one or more slots inside a TDM frame for transmission of the processed data. The sensor also embeds additional information inside a data stream of raw data by repurposing one or more of values of the raw data as an exception code, flag, or another type of notification. The device is also enabled to transmit data, and disabled when not in use in order to conserve power.
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公开(公告)号：US20220321318A1
公开(公告)日：2022-10-06
申请号：US17707423
申请日：2022-03-29
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Matteo QUARTIROLI , Paolo ROSINGANA
IPC: H04L7/00
Abstract: A sensor includes detection circuitry and control circuitry coupled to the detection circuitry. The detection circuitry generates a detection signal indicative of a detected physical quantity. The control circuitry, in operation receives the detection signal and a frequency-indication signal, and generates a trigger signal based on the frequency-indication signal and a set of local reference signals. The sensor generates a digital output signal and a locking signal based on the trigger signal and the detection signal. The generating the digital output signal includes outputting a sample of the digital output signal based on the trigger signal. The locking signal is temporally aligned with the digital output signal.
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公开(公告)号：US20240048144A1
公开(公告)日：2024-02-08
申请号：US18352581
申请日：2023-07-14
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Matteo QUARTIROLI , Alessandro MECCHIA , Paolo PESENTI
CPC classification number: H03L7/0814 , H03L7/0992
Abstract: A device includes a local oscillator, an all-digital phase-locked loop, a digital signal generator, sampling circuitry, and an interface. The local oscillator generates a local clock signal. The all-digital phase locked loop generates a sampling control signal. The ADPLL includes a phase-error detector, a digital filter and a sigma-delta modulator. The phase detector generates a phase error signal based on a loop clock signal and a received reference signal. The digital filter generates a signal indicative of a frequency ratio between a frequency of the reference clock signal and the local clock frequency based on the phase error signal. The sigma-delta modulator generates a modulated signal based on the signal indicative of the frequency ratio. The sampling control signal is based on the modulated signal. The sampling circuitry samples digital signals generated by the digital signal generator at a sampling frequency, which is a function of the sampling control signal.
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公开(公告)号：US20230370524A1
公开(公告)日：2023-11-16
申请号：US18360692
申请日：2023-07-27
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Alessandra Maria RIZZO PIAZZA RONCORONI , Matteo QUARTIROLI , Rossella BASSOLI , Paola BALDRIGHI
CPC classification number: H04L67/12 , H04J3/1647
Abstract: The present disclosure is directed to a device and method for generating and transmitting a TDM signal including both raw data and processed data. The device includes a sensor having a time division multiplexing (TDM) interface. The TDM interface transmits both raw data and processed data in a single TDM signal by reserving one or more slots inside a TDM frame for transmission of the processed data. The sensor also embeds additional information inside a data stream of raw data by repurposing one or more of values of the raw data as an exception code, flag, or another type of notification. The device is also enabled to transmit data, and disabled when not in use in order to conserve power.
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Patent Agency Ranking
公开(公告)号：US20220315416A1
公开(公告)日：2022-10-06
申请号：US17707454
申请日：2022-03-29
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Matteo QUARTIROLI , Alessandro MECCHIA , Laura MAESTRI
Abstract: The sensor is configured to provide a digital output signal and has a digital detector, which is configured to detect a physical quantity and generate a conditioned digital signal indicative of the detected physical quantity; and a rate modification stage, configured to receive the conditioned digital signal and a group of parameters, the group of parameters comprising an interpolation factor and a downsampling factor, and to provide the digital output signal. The rate modification stage has an interpolator and a decimation element. The interpolator is configured to receive and to upsample the conditioned digital signal based on the interpolation factor and to provide an interpolated signal. The decimation element is configured to downsample the interpolated signal based on the downsampling factor, thereby generating the digital output signal.
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公开(公告)号：US20240271935A1
公开(公告)日：2024-08-15
申请号：US18160723
申请日：2023-01-27
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Alessandro MAGNANI , Matteo QUARTIROLI , Alessandra Maria RIZZO PIAZZA RONCORONI , Paolo ROSINGANA
IPC: G01C19/5776
CPC classification number: G01C19/5776 , G06F7/544 , H04R1/10 , H04R2460/13
Abstract: A device includes one or more inertial sensors and fusion circuitry coupled to the one or more inertial sensors. The inertial sensors, in operation, generate inertial sensor data with respect to a plurality of axes of movement. The fusion circuitry, in a polar fusion mode of operation, applies a plurality of polar rotation operations to the generated inertial sensor data to rotate the generated inertial sensor data onto an axis of the plurality of axes of movement. A fused data signal is generated based on a result of the plurality of polar rotation operations. The plurality of inertial sensors may include bone-conduction sensors.
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公开(公告)号：US20240072922A1
公开(公告)日：2024-02-29
申请号：US17898335
申请日：2022-08-29
Applicant: STMICROELECTRONICS S.R.L.
IPC: H04J3/06
CPC classification number: H04J3/0685 , H04J3/0617
Abstract: An integrated circuit includes a control circuit, a primary sensor device coupled to the control circuit, and a plurality of groups of secondary sensor devices coupled to the primary sensor device. The primary sensor device receives a master clock signal from the control device and outputs, to each group of secondary sensor devices, a respective secondary clock signal with a frequency lower than the primary clock signal. The primary sensor device generates primary sensor data. The primary sensor device receives secondary sensor data from each group of secondary sensor devices. The primary sensor device combines the primary sensor data and all of the secondary sensor data into a sensor data stream with a time division-multiplexing scheme and outputs the sensor data stream to the control circuit.
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公开(公告)号：US20240019475A1
公开(公告)日：2024-01-18
申请号：US18348993
申请日：2023-07-07
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Matteo QUARTIROLI
Abstract: The integrated sensor has a clock which provides a clock signal having a clock frequency; a digital detector which detects a power grid signal and generates a reference digital signal indicative of the power grid signal and having a sample rate which is a function of the clock frequency; and a timing monitoring stage which receives the reference digital signal and a nominal signal indicative of a nominal timing of the reference digital signal. The timing monitoring stage also compares the reference digital signal with the nominal signal and, in response, provides an error signal indicative of a timing error between the reference digital signal and the nominal signal.
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公开(公告)号：US20230396407A1
公开(公告)日：2023-12-07
申请号：US18453018
申请日：2023-08-21
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Matteo QUARTIROLI , Paolo ROSINGANA
IPC: H04L7/00
CPC classification number: H04L7/0079
Abstract: A sensor includes detection circuitry and control circuitry coupled to the detection circuitry. The detection circuitry generates a detection signal indicative of a detected physical quantity. The control circuitry, in operation receives the detection signal and a frequency-indication signal, and generates a trigger signal based on the frequency-indication signal and a set of local reference signals. The sensor generates a digital output signal and a locking signal based on the trigger signal and the detection signal. The generating the digital output signal includes outputting a sample of the digital output signal based on the trigger signal. The locking signal is temporally aligned with the digital output signal.
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