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公开(公告)号：US09423493B2
公开(公告)日：2016-08-23
申请号：US14179896
申请日：2014-02-13
Applicant: Semiconductor Components Industries, LLC
Inventor： Ivan Koudar , Marek Hustava , Tomas Suchy
CPC classification number: G01S7/52004 , B06B1/0215 , G01S7/521
Abstract: In one embodiment, a transducer controller is configured to form an integrated distance measuring and diagnostic cycle that includes measuring a decay time of a transducer and to selectively adjust a period of the transmitted signal responsively to a value of a reverberation period.
Abstract translation: 在一个实施例中，换能器控制器被配置成形成集成的距离测量和诊断循环，其包括测量换能器的衰减时间，并且响应于混响周期的值有选择地调节发射信号的周期。
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公开(公告)号：US12070772B2
公开(公告)日：2024-08-27
申请号：US18456973
申请日：2023-08-28
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Zdenek Axman , Tomas Suchy , Petr Kamenicky
CPC classification number: B06B1/0215 , G10K9/122 , B06B2201/30 , B06B2201/55
Abstract: Embodiments include a primary short circuit coupled to a primary side of a transformer and a dampening element, coupled to a transducer coupled to a secondary side of the transformer, configured to dampen a received signal during a portion of a reverberation period.
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公开(公告)号：US11867730B2
公开(公告)日：2024-01-09
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 , H03K5/08 , H03K17/082 , G06F1/3212 , G06F1/3215 , G06F1/3234 , G06F1/3287
CPC classification number: G01R19/0092 , G06F1/3212 , G06F1/3215 , G06F1/3253 , G06F1/3287 , H03K5/08 , H03K17/0828
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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Patent Agency Ranking
公开(公告)号：US11549971B2
公开(公告)日：2023-01-10
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: G06F1/3212 , G06F1/3234 , G06F1/3287 , G01R19/00 , H03K5/08 , H03K17/082 , G06F1/3215
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：US11269067B2
公开(公告)日：2022-03-08
申请号：US15888543
申请日：2018-02-05
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Jiri Kutej , Tomas Suchy , Marek Hustava , Pavel Horsky , Zdenek Axman
Abstract: Piezoelectric sensor controllers may facilitate detection and identification of various potential fault states with parameter measurements. In an illustrative embodiment of a piezoelectric-based sensor having response-parameter-based fault diagnosis, the sensor includes a piezoelectric transducer and a controller. The controller drives the piezoelectric transducer to generate bursts of acoustic energy and, based on a response of the piezoelectric transducer to said driving, identifies a corresponding transducer state from a set of potential states including multiple transducer fault states. An illustrative embodiment of a sensing method having fault diagnosis, the method includes: driving a piezoelectric transducer to generate a burst of acoustic energy; monitoring a response of the piezoelectric transducer to said driving; identifying, based on said response, a corresponding transducer state from a set of potential states including multiple transducer fault states; and if the transducer state is a fault state, reporting that fault state.
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公开(公告)号：US11194028B2
公开(公告)日：2021-12-07
申请号：US15888596
申请日：2018-02-05
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Jiri Kutej , Tomas Suchy , Marek Hustava , Pavel Horsky , Zdenek Axman
Abstract: Piezoelectric sensor controllers may facilitate detection and identification of various potential fault states with novel parameter measurements. In an illustrative embodiment of a piezoelectric-based sensor having a shorted-reverberation based resonant frequency measurement, the sensor includes a piezoelectric transducer that provides residual reverberation after being driven. The sensor further includes a controller that provides a low impedance path for the piezoelectric transducer during the residual reverberation and that measures current through the low impedance path to determine a resonant frequency of the piezoelectric transducer. In an illustrative embodiment of a sensing method having a shorted-reverberation based resonant frequency measurement, the method includes: driving a piezoelectric transducer that provides residual reverberation after being driven; providing a low impedance path for the piezoelectric transducer during the residual reverberation; and measuring current through the low impedance path to determine a resonant frequency of the piezoelectric transducer.
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公开(公告)号：US11112495B2
公开(公告)日：2021-09-07
申请号：US16260281
申请日：2019-01-29
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Tomas Suchy , Marek Hustava
Abstract: In one form, a method for acoustic distance measurement includes generating an acoustic signal with an acoustic transducer at a first time. A pulse is detected with the acoustic transducer in response to the acoustic signal encountering an obstacle within a predetermined distance. Detecting the pulse includes detecting a second time relative to the first time when a magnitude of the pulse rises above a predetermined threshold, and detecting a peak magnitude of the pulse. A correction ratio is determined as a ratio of the predetermined threshold to the peak magnitude of the pulse. A correction time is determined in response to the correction ratio. A corrected time-of-flight is determined by adjusting the second time by the compensation time.
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公开(公告)号：US20210255295A1
公开(公告)日：2021-08-19
申请号：US16791085
申请日：2020-02-14
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Tomas Suchy , Marek Hustava
IPC: G01S7/523 , G01S15/931
Abstract: Embodiments include devices, system and processes for facilitating ultra-short range detection of obstacles using a PAS sensor. A process may include obtaining a correlation of at least two characteristics of a transducer; determining a given transmission frequency and selecting a reverberation time desired for the transducer; obtaining a damping ratio corresponding to the selected reverberation time; generating a ranging signal command; generating a damping signal command; and outputting each of the ranging signal command and the damping signal command. The ranging signal command may instruct a PAS sensor to drive the transducer to output a ranging signal at the given transmission frequency, at a transmission amplitude, and at a transmission phase and the damping signal command results in a dampening, at the damping ratio, of transducer reverberations arising from the ranging signal. The damping ratio may be between thirty percent (30%) and eighty percent (80%) of the transmission amplitude.
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