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公开(公告)号：US20250106554A1
公开(公告)日：2025-03-27
申请号：US18977726
申请日：2024-12-11
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek HUSTAVA , Tomas SUCHY , Michal NAVRATIL , Jiri KUTEJ
IPC: H04R3/00 , G01S7/52 , G01S15/93 , G01S15/931 , G08G1/16 , G10K11/178
Abstract: An obstacle monitoring system includes a transducer that receives an ultrasonic echo from an obstacle and generates a signal based on the echo. The system further includes a controller coupled to the transducer that is calibrated based on a frequency response of the transducer and a coupling circuit. The system further includes circuitry generating a damping current, controlled by the controller, that reduces or eliminates reverberation of the transducer.
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公开(公告)号：US20240264303A1
公开(公告)日：2024-08-08
申请号：US18355284
申请日：2023-07-19
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek HUSTAVA , Pavel KOSTELNIK
CPC classification number: G01S15/523 , G01S7/53 , G01S7/539
Abstract: Breathing sensors, sensing methods, and vehicle occupant monitoring systems may employ ultrasonic transducers. One illustrative sensing method includes: sensing an acoustic transducer's responses to a series of acoustic bursts emitted in a vehicle's cabin; differencing pairs of said responses to obtain difference signals; converting the difference signals into magnitude signals; performing peak detection on each of the magnitude signals to obtain at least one peak amplitude; and providing a breathing signal based on the at least one peak amplitude. The breathing signal may be an occupancy detection flag, an occupant position, a breathing frequency, and/or any combination thereof.
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公开(公告)号：US20220247516A1
公开(公告)日：2022-08-04
申请号：US17585531
申请日：2022-01-26
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek HUSTAVA , Tomas SUCHY
Abstract: Methods and devices provide for enhanced robustness via graceful packet error detection and packet retransmission. One illustrative sensing method includes: generating a voltage pulse on a signal conductor coupled to a sensor array including one or more active sensors, the voltage pulse representing a broadcast read command (BRC) that defines a frame of one or more time-division-multiple-access (TDMA) slots, one slot for each active sensor to send a data packet; performing current sensing on the signal conductor to receive the data packet from each of the one or more active sensors; determining whether each said data packet is received error free; and requesting retransmission of each said data packet not received error free.
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公开(公告)号：US20210352412A1
公开(公告)日：2021-11-11
申请号：US17156742
申请日：2021-01-25
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Tomas SUCHY , Pavel KOSTELNIK , Marek HUSTAVA
IPC: H04R17/00
Abstract: One implementation of a sensing method includes: correlating a receive signal with a first channel waveform template to obtain a first channel correlation signal in which first channel echoes would be represented as peaks; correlating the receive signal with a second channel waveform template to obtain a second channel correlation signal in which second channel echoes would be represented as peaks; and varying the first channel waveform template and the second channel waveform template based on time elapsed from a measurement start time. A sensor array implementation includes: multiple acoustic transducers that operate concurrently to send acoustic bursts in different frequency channels, each of the multiple acoustic transducers configured to use the foregoing method.
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公开(公告)号：US20200326415A1
公开(公告)日：2020-10-15
申请号：US16530693
申请日：2019-08-02
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek HUSTAVA , Michal NAVRATIL , Pavel KOSTELNIK
Abstract: Sensors, sensor controllers, and sensor control methods may employ an echo- magnification technique to improve threshold-based echo detection. In one illustrative embodiment, a sensor controller includes: a transmitter, a receiver, and a processing circuit coupled to the transmitter and to the receiver. The transmitter drives a piezoelectric element to generate acoustic bursts. The receiver senses a response of the piezoelectric element to echoes of each acoustic burst. The processing circuit is operable to apply echo-detection processing to the response by: identifying an interval of the response representing at least a portion of a potential echo; deriving a modified response from the response by selectively magnifying the response during said interval; and using the modified response to detect an echo.
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Patent Agency Ranking
公开(公告)号：US20250102669A1
公开(公告)日：2025-03-27
申请号：US18658332
申请日：2024-05-08
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek HUSTAVA , Pavel KOSTELNIK
IPC: G01S15/931 , H04B11/00 , H04R1/40 , H04R3/00 , H04R19/04
Abstract: illustrative vehicles, systems, and methods adapt ultrasonic sensing arrays for close-range communication with, e.g., smart devices, parking infrastructure, and other vehicles. As one example, an illustrative vehicle includes: one or more ultrasonic sensors configured for proximity sensing; and a controller configured to use the one or more ultrasonic sensors to receive an acoustic signal from a smart device. As another example, an illustrative vehicle includes one or more microphones configured for at least one of noise cancellation, voice control, emergency vehicle detection, and proximity sensing; and a controller configured to use the one or more microphones to receive an acoustic signal from a smart device, the acoustic signal being in the frequency range between 18 kHz and 25 kHz, inclusive.
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公开(公告)号：US20240255600A1
公开(公告)日：2024-08-01
申请号：US18468207
申请日：2023-09-15
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek HUSTAVA
CPC classification number: G01S3/46 , B60W40/10 , B60W2420/54 , B60W2554/4049
Abstract: A smart ultrasonic integrated-circuit that allows at least one MEMS device to be combined with a piezoelectric transducer in a sensor array module. The sensor array module is capable of additional functionality for an advanced driver assistance system. For example, the MEMS device can add functionality because its wide bandwidth allows for simultaneous detection of audio signals and ultrasonic signals. Accordingly, the sensor array module may provide dual-mode (audio and ultrasonic) sensing in a single module. Additionally the size/cost of a MEMS device allows for the use of a two-dimensional array for receiving ultrasonic echoes which can add a dimension to the ultrasonic range detection for a vehicle.
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公开(公告)号：US20220026976A1
公开(公告)日：2022-01-27
申请号：US17176963
申请日：2021-02-16
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Miroslav STEPAN , Marek HUSTAVA , Tomas SUCHY , Pavel HARTL , Petr KAMENICKY
IPC: G06F1/3234 , G06F1/3212 , G06F1/3215 , G06F1/3287
Abstract: A sensor device coupled to a communication interface bus, the sensor device enters a low power mode in which some operations of the sensor device are suspended when the sensor device receives insufficient power over the bus, thereby significantly reducing the likelihood that digital components of the sensor device will need to be reset due to an under-voltage condition.
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公开(公告)号：US20220026472A1
公开(公告)日：2022-01-27
申请号：US17176926
申请日：2021-02-16
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Tomas SUCHY , Miroslav STEPAN , Pavel HARTL , Marek HUSTAVA , Petr KAMENICKY
IPC: G01R19/00 , H03K17/082 , H03K5/08
Abstract: A sensor device coupled to a communication interface bus, the sensor device includes: a current source having a first terminal operable to receive a supply current, a second terminal operable to provide a supply current, and a control terminal, wherein an operating voltage is supplied by a current through the current source; a voltage clamp having a first terminal coupled to the second terminal of the current source, a second terminal coupled to a power supply terminal, and an output terminal operable to provide a current sense signal; and a control circuit having an input terminal coupled to the output terminal of the voltage clamp and an output terminal coupled to the control terminal of the current source operable to provide an adjustment signal responsive to the current sense signal, wherein the current source is configured to adjust the current through the current source responsive to the adjustment signal.
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公开(公告)号：US20200271767A1
公开(公告)日：2020-08-27
申请号：US16530654
申请日：2019-08-02
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek HUSTAVA , Jiri KANTOR
Abstract: Sensors may employ a constant false alarm rate (CFAR) screening process in combination with edge-based echo detection. In one illustrative embodiment, a sensor controller includes: a transmitter, a receiver, and a processing circuit coupled to the transmitter and to the receiver. The transmitter drives a piezoelectric element to generate acoustic bursts. The receiver senses a response of the piezoelectric element to echoes of each acoustic burst. The processing circuit is operable to apply echo-detection processing to the response by: determining a derivative signal from the response; and detecting an echo based at least in part on a peak in the derivative signal indicating a rising and/or falling edge in the response. Signaling to the electronic control unit may specify a time of flight associated with each edge.
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