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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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公开(公告)号：US12052100B2
公开(公告)日：2024-07-30
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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Patent Agency Ranking
公开(公告)号：US11982740B2
公开(公告)日：2024-05-14
申请号：US17821497
申请日：2022-08-23
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Tomas Suchy , Pavel Kostelnik , Dalibor Bartos
IPC: G01S15/58 , G01S15/931
CPC classification number: G01S15/58 , G01S15/931 , G01S2015/932
Abstract: Various sensors, sensor controllers, and sensing methods are suitable for use in a multi-channel ultrasonic sensor array such as those used in systems for parking assistance, blind spot monitoring, and driver assistance. One illustrative acoustic sensing method includes: driving an acoustic transducer to send acoustic bursts each including an up-chirp in a first frequency band and a down-chirp in a second frequency band; receiving echo signals responsive to the acoustic bursts from the transducer; and using the echo signals to determine a distance or time of flight from the transducer. Another acoustic sensing method includes: driving an acoustic transducer to send acoustic bursts each including a concurrent up-chirp and down-chirp; receiving echo signals responsive to the acoustic bursts from the transducer; and using the echo signals to determine a distance or time of flight from the transducer.
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公开(公告)号：US11678125B2
公开(公告)日：2023-06-13
申请号：US17855118
申请日：2022-06-30
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Tomas Suchy , Pavel Kostelnik , Marek Hustava
CPC classification number: H04R17/00
Abstract: One implementation of a sensing method includes: correlating a receive signal with a waveform template to obtain a correlation signal in which echoes would be represented as peaks; and varying the waveform template based on time elapsed from a measurement start time.
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公开(公告)号：US10976423B2
公开(公告)日：2021-04-13
申请号：US15868801
申请日：2018-01-11
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Tomas Suchy
IPC: G01S7/52 , G01S7/527 , G01S15/931 , G01S15/10
Abstract: In one form, an acoustic distance measuring circuit includes a transmitter amplifier, an acoustic transducer, and a sensing circuit. The sensing circuit includes an input adapted to be coupled to the acoustic transducer, a first correlation output for providing a chirp tail correlation signal, and a second output for providing a full chirp correlation signal. The sensing circuit provides the chirp tail correlation signal in response to correlating a chirp tail signal pattern with a received signal, and provides a full chirp correlation signal in response to correlating a full chirp signal pattern with the received signal. Further, the acoustic distance measuring circuit includes a controller adapted to be coupled to the sensing circuit that has a first input for receiving the chirp tail correlation signal and the full chirp correlation signal for determining a short range time of flight signal and a long range time of flight signal.
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公开(公告)号：US10444350B2
公开(公告)日：2019-10-15
申请号：US15640812
申请日：2017-07-03
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Marek Hustava , Tomas Suchy , Miroslav Kassa
Abstract: An obstacle monitoring system includes a first transducer that obtains a first distance measurement to an obstacle using a first linear frequency modulated (“LFM”) chirp. The system further includes a second transducer, able to operate concurrently with the first transducer, that obtains a second distance measurement to the obstacle using a second LFM chirp. The second LFM chirp has an inverted slope or shifted center frequency compared to the first LFM chirp. The system further includes a controller that processes the first and second distance measurements to determine a motion-compensated distance measurement to the obstacle.
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公开(公告)号：US10234549B2
公开(公告)日：2019-03-19
申请号：US15286822
申请日：2016-10-06
Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Inventor： Tomas Suchy , Marek Hustava
Abstract: In one form, an acoustic signal is generated for an acoustic transducer, where the acoustic transducer transmits the acoustic signal to determine a first position of an obstacle. In response to the acoustic signal encountering the obstacle within a predetermined distance, an echo, or pulse, is detected at the acoustic transducer. At a first time, a magnitude is detected in response to a rising edge of the pulse intersecting a determined threshold. A second magnitude is detected in response to the detection of a first peak of the pulse. A time of flight of the acoustic signal, within the predetermined distance, is determined when a compensation time is extracted from a correction calculation algorithm in response to detecting the first magnitude and the second magnitude. The compensation time is subtracted from the first time, and the difference of the compensation time and the first time is the time of flight.
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