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公开(公告)号：US11982776B2
公开(公告)日：2024-05-14
申请号：US17522019
申请日：2021-11-09
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Jiri Kantor , Tomas Suchy
IPC: G01S7/52 , G01S7/526 , G01S15/931
CPC classification number: G01S7/52006 , G01S7/526 , G01S15/931
Abstract: Disclosed sensors, sensor controllers, and sensor control methods enhance transducer performance using a model-based equalization method that can be performed in the field. One illustrative method for operating a piezoelectric-based sensor includes: sensing a response of a piezoelectric transducer as a function of frequency; deriving parameter values of an equivalent circuit for the piezoelectric transducer from the response; using a squared magnitude of the equivalent circuit's transfer function to determine a system level selectivity; and adapting at least one operating parameter of the sensor based on the system level selectivity. One illustrative controller for a piezoelectric transducer includes: a transmitter that drives the piezoelectric transducer; a receiver that senses a response of the piezoelectric transducer; and a processing circuit coupled to the transmitter and to the receiver to calibrate the transducer using the foregoing method.
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公开(公告)号：US11269068B2
公开(公告)日：2022-03-08
申请号：US16254882
申请日：2019-01-23
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Tomas Suchy
IPC: G01S7/52
Abstract: Piezoelectric sensor controllers may facilitate detection and identification of various potential fault states including noise-induced sensor blindness. In one illustrative embodiment, a sensor controller includes: a transmitter to drive a piezoelectric element during actuation intervals to generate acoustic bursts; a receiver to sense a response of the piezoelectric element to echoes of each acoustic burst, the receiver including a front-end amplifier; a processing circuit coupled to the transmitter and to the receiver, the processing circuit operable to apply echo-detection processing to said response; and a blindness detector to detect saturation of the front-end amplifier during or prior to the measurement intervals.
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公开(公告)号：US10771281B1
公开(公告)日：2020-09-08
申请号：US16673607
申请日：2019-11-04
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Tomas Suchy , Lukas Vykydal , Pavel Hartl , Marek Hustava
Abstract: A semi-differential signaling technique as well as bus devices and communication systems that exploit this technique to enhance the performance of the DSI3 bus. In one embodiment, there is provided a DSI3 master device that can be coupled to a DSI3 slave device via a bus having at least a power supply conductor, a power return conductor, and a signal conductor. The master device includes: a power supply node and a power return node that respectively connect to the power supply conductor and the power return conductor to supply power to the slave device; a signal node that connects to the signal conductor; and a driver that drives the signal node relative to a reference voltage midway between voltages of the power supply node and the power return node.
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公开(公告)号：US10523461B2
公开(公告)日：2019-12-31
申请号：US16005031
申请日：2018-06-11
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Tomas Suchy
Abstract: Methods and transceivers are provided for enabling fast-data messages on a local interconnect network (LIN) compatible bus. One illustrative slave transceiver embodiment includes: a comparator and a digital-to-analog converter (DAC). The comparator detects amplitude modulation of a bias voltage at a first baud rate on a serial bus line to receive a first LIN frame header having a frame identifier for a fast-data frame. The DAC responsively drives a fast-data response message having an expanded payload and/or a higher baud rate on the serial bus line.
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公开(公告)号：US10345445B2
公开(公告)日：2019-07-09
申请号：US15212537
申请日：2016-07-18
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Tomas Pikula , Tomas Suchy
Abstract: In one form, an acoustic signal is generated for an acoustic transducer, where the acoustic transducer is susceptible to reverberation that defines a close proximity indication zone. The start of a close proximity indication zone window is defined after the generation of the acoustic signal at a first time. During the close proximity indication zone window, a signal is received from the acoustic transducer. When the signal is received, an obstacle is detected in the close proximity indication zone if the magnitude of a first pulse received from the transducer at a second time is less than a first threshold but greater than a second threshold for a debounce time. Additionally, a magnitude of a second pulse received from the transducer outside the close proximity indication zone window at a third time should be less than the second threshold but greater than a third threshold for the debounce time. In this form, the third time is equal to the first time plus two times the difference between the second time and the first time.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11885874B2
公开(公告)日：2024-01-30
申请号：US16378722
申请日：2019-04-09
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Tomas Suchy
CPC classification number: G01S15/10 , G01S7/524 , G01S7/527 , G01S7/52026
Abstract: In one form, an acoustic distance measuring circuit includes a frequency generator, a transmitter amplifier, an acoustic transducer, and a sensing circuit. The sensing circuit includes an input adapted to be coupled to the acoustic transducer, for receiving an input signal. The sensing circuit provides an in-phase portion and a quadrature portion of the input signal to a filter. The sensing circuit filters the in-phase portion and the quadrature portion and calculates a phase of the input signal in response to the filtered in-phase and quadrature portions. The sensing circuit determines a frequency slope of the input signal in response to calculating the phase and provides the frequency slope of the input signal to an output.
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公开(公告)号：US11442155B2
公开(公告)日：2022-09-13
申请号：US16791409
申请日：2020-02-14
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Michal Navratil , Pavel Kostelnik
IPC: G01S7/52 , B60T13/24 , G01S15/931
Abstract: The various embodiments of the present disclosure are directed to devices, system and processes for detecting saturation of a received signal in a PAS system. A process may include detecting, in a received signal and during a measurement interval, one or more correlated signal levels. Based on one or more results of the detecting, the process may include identifying in a correlated output signal portions of the received signal which exceed a given magnitude threshold during the measurement interval and providing the correlated output signal to an electronic control unit (ECU). A magnitude detector outputs the correlated output signal. A saturation detector determines whether the received signal is saturated during a portion of a measurement interval. When the received signal is saturated, a saturation signal is generated and provided on a delayed basis to the ECU such that it is provided substantially contemporaneously with the correlated output signal.
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公开(公告)号：US11163049B2
公开(公告)日：2021-11-02
申请号：US16530693
申请日：2019-08-02
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Michal Navratil , Pavel Kostelnik
IPC: G01S7/529 , G01S15/93 , G01S15/931
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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公开(公告)号：US11163048B2
公开(公告)日：2021-11-02
申请号：US16724783
申请日：2019-12-23
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Tomas Suchy , Jiri Kantor , Marek Hustava
IPC: G01S7/527 , G01S15/931 , G01S15/10 , G01S7/53
Abstract: Various sensors, sensor controllers, and sensor control methods are provided with model-based sideband balancing. In one illustrative embodiment, a controller for a piezoelectric transducer includes a transmitter, a receiver, and a processing circuit coupled to the transmitter and receiver. The processing circuit performs calibration and echo detection, the calibration including: sensing the piezoelectric transducer's phase response as a function of frequency; deriving equivalent circuit parameters for the piezoelectric transducer from the phase response; and determining a sideband imbalance based on one or more of the equivalent circuit parameters. Once the sideband imbalance is identified, the processing circuit may perform echo-detection processing that accounts for the sideband imbalance.
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公开(公告)号：US09810778B2
公开(公告)日：2017-11-07
申请号：US14853307
申请日：2015-09-14
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Ivan Koudar , Tomas Suchy , Marek Hustava
CPC classification number: G01S7/52004 , G01S15/87 , G01S15/931 , G01S2015/932 , G01S2015/938
Abstract: An illustrative sensor controller embodiment includes: a transmitter that drives an ultrasonic transducer to produce a transmit pulse; a receiver that derives a sensor signal from the transducer; and a core logic that detects a trigger signal on an event signaling line and responsively provides one or more error reporting bits on the event signaling line before driving the event signaling line based on the sensor signal. An illustrative embodiment of a sensor control method includes: detecting a trigger signal on an event signaling line; providing at least one status bit on the event signaling line in response to the trigger signal; and after providing the at least one status bit, driving the event signaling line based upon on a sensor signal from a transducer. The transducer may be a piezoelectric element for producing and sensing ultrasonic pulses, particularly for use in parking-assist sensors and systems.
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