Patents by Inventor Petr Kamenicky
Petr Kamenicky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11867730Abstract: 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.Type: GrantFiled: February 16, 2021Date of Patent: January 9, 2024Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Tomas Suchy, Miroslav Stepan, Pavel Hartl, Marek Hustava, Petr Kamenicky
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Publication number: 20230405634Abstract: 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.Type: ApplicationFiled: August 28, 2023Publication date: December 21, 2023Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Zdenek AXMAN, Tomas SUCHY, Petr KAMENICKY
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Patent number: 11759822Abstract: Embodiments include a primary short circuit (PSC) 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. The PSC and the dampening element may be activated substantially simultaneously. Activation of the PSC circuit mitigates a parallel resonance otherwise arising, in part, in the transducer, but, increases the received signal by a DC shift voltage. The dampening element dampens the DC shift voltage. The received signal may be dampened prior to amplification of the received signal by an amplifier. The dampening facilitates earlier and more precise measurement, during the reverberation period, of at least one operating characteristic for the PAS sensor. Another embodiment prevents the DC shift voltage by selectively activating the PSC within a determined time of a zero-crossing of a given signal.Type: GrantFiled: May 5, 2020Date of Patent: September 19, 2023Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Zdenek Axman, Tomas Suchy, Petr Kamenicky
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Patent number: 11549971Abstract: 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.Type: GrantFiled: February 16, 2021Date of Patent: January 10, 2023Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Miroslav Stepan, Marek Hustava, Tomas Suchy, Pavel Hartl, Petr Kamenicky
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Publication number: 20220026472Abstract: 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.Type: ApplicationFiled: February 16, 2021Publication date: January 27, 2022Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Tomas SUCHY, Miroslav STEPAN, Pavel HARTL, Marek HUSTAVA, Petr KAMENICKY
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Publication number: 20220026976Abstract: 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.Type: ApplicationFiled: February 16, 2021Publication date: January 27, 2022Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Miroslav STEPAN, Marek HUSTAVA, Tomas SUCHY, Pavel HARTL, Petr KAMENICKY
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Publication number: 20210220871Abstract: Embodiments include a primary short circuit (PSC) 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. The PSC and the dampening element may be activated substantially simultaneously. Activation of the PSC circuit mitigates a parallel resonance otherwise arising, in part, in the transducer, but, increases the received signal by a DC shift voltage. The dampening element dampens the DC shift voltage. The received signal may be dampened prior to amplification of the received signal by an amplifier. The dampening facilitates earlier and more precise measurement, during the reverberation period, of at least one operating characteristic for the PAS sensor. Another embodiment prevents the DC shift voltage by selectively activating the PSC within a determined time of a zero-crossing of a given signal.Type: ApplicationFiled: May 5, 2020Publication date: July 22, 2021Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Zdenek AXMAN, Tomas SUCHY, Petr KAMENICKY
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Patent number: 10488516Abstract: A method includes configuring a transmitter to provide at least three output levels used to form an output signal. The method further includes adjusting a duration of at least one of the output levels to control an average value of the output signal independently of an amplitude of a first harmonic of the output signal.Type: GrantFiled: April 7, 2016Date of Patent: November 26, 2019Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Johan Camiel Julia Janssens, Pavel Horsky, Petr Kamenicky
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Publication number: 20170115391Abstract: A method includes configuring a transmitter to provide at least three output levels used to form an output signal. The method further includes adjusting a duration of at least one of the output levels to control an average value of the output signal independently of an amplitude of a first harmonic of the output signal.Type: ApplicationFiled: April 7, 2016Publication date: April 27, 2017Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Johan Camiel Julia JANSSENS, Pavel HORSKY, Petr KAMENICKY
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Patent number: 9095026Abstract: In an embodiment, an LED controller is configured to form a charge transfer sequence to selectively enable LED transistors of a plurality of LED transistors that are configured for coupling in parallel with a plurality of LEDs. An embodiment may include that the LED controller is configured to sequentially couple a charge capacitor to a gate-to-source capacitor of each LED transistor of the plurality of LED transistors to one of charge or to refresh the gate-to-source capacitor of a respective LED transistor and to one of enable or re-enable the respective LED transistor wherein the gate-to-source capacitor is a parasitic gate-to-source capacitor of the LED transistor wherein the charge capacitor is sequentially coupled to the gate-to-source capacitor of each LED transistor.Type: GrantFiled: December 3, 2014Date of Patent: July 28, 2015Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Pavel Horsky, Petr Kamenicky
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Publication number: 20150189711Abstract: In an embodiment, an LED controller is configured to form a charge transfer sequence to selectively enable LED transistors of a plurality of LED transistors that are configured for coupling in parallel with a plurality of LEDs. An embodiment may include that the LED controller is configured to sequentially couple a charge capacitor to a gate-to-source capacitor of each LED transistor of the plurality of LED transistors to one of charge or to refresh the gate-to-source capacitor of a respective LED transistor and to one of enable or re-enable the respective LED transistor wherein the gate-to-source capacitor is a parasitic gate-to-source capacitor of the LED transistor wherein the charge capacitor is sequentially coupled to the gate-to-source capacitor of each LED transistor.Type: ApplicationFiled: December 3, 2014Publication date: July 2, 2015Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Pavel HORSKY, Petr KAMENICKY
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Patent number: 8179156Abstract: In one embodiment, a closed loop control system is caused to operate in an open loop configuration. At some time while operating in the open loop configuration the system detected the presence or absence of a.c. signals in an output signal of the system in order to detect the presence or absence of a failure of a control loop element, such as an output capacitor.Type: GrantFiled: November 19, 2009Date of Patent: May 15, 2012Assignee: Semiconductor Components Industries, LLCInventors: Pavel Horsky, Petr Kamenicky
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Patent number: 8144444Abstract: A protection circuit for protecting an electronic circuit against EMC disturbances and/or negative transient overvoltage pulses comprises a switch in series between a power supply and the electronic circuit to be protected; a comparator for comparing a first operating parameter with a second operating parameter and producing a comparison signal, the comparison signal being used as a control signal for controlling opening and closing of the switch; and a delay circuit adapted for delaying closing of the switch. A corresponding method is also provided.Type: GrantFiled: August 12, 2008Date of Patent: March 27, 2012Assignee: Semiconductor Components Industries, LLCInventors: Pavel Horsky, Petr Kamenicky
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Patent number: 8093924Abstract: An output driver circuit has an input, an output node, and first and second transistors coupled in series between the output node and a first source of operating potential. Parasitic diodes of the first and second transistors are anti-serially coupled. The output driver circuit has first and second control circuits coupled to control the first and second transistors respectively. The first transistor is controlled as a controlled current source depending on a signal at the input during normal conditions when the current that flows through the output is in a first direction, and the second control circuit controls the second transistor to prevent unwanted DC current at the output from flowing through the output in a second direction. The first and second transistors are also controlled to limit unwanted transient currents during an EMC disturbance substantially symmetrically.Type: GrantFiled: August 8, 2008Date of Patent: January 10, 2012Assignee: Semiconductor Components Industries, LLCInventors: Petr Kamenicky, Pavel Horsky
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Publication number: 20110115520Abstract: In one embodiment, a closed loop control system is caused to operate in an open loop configuration. At some time while operating in the open loop configuration the system detected the presence or absence of a.c. signals in an output signal of the system in order to detect the presence or absence of a failure of a control loop element, such as an output capacitor.Type: ApplicationFiled: November 19, 2009Publication date: May 19, 2011Inventors: Pavel Horsky, Petr Kamenicky
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Patent number: 7920979Abstract: A signal generation circuit that uses a waveform generation mechanism to generate predetermined waveform(s) when triggered. A triggering mechanism is configured to repeatedly trigger the waveform generation mechanism at times that are dependent on data provided by a data source. The predetermined waveform may be a bandwidth-limited pulse, but might also be a rising edge or a falling edge of a pulse. Various consecutive waveforms may be summed together to thereby formulate a continuous signal. The waveform may have particular characteristics by design.Type: GrantFiled: April 29, 2008Date of Patent: April 5, 2011Assignee: Semiconductor Components Industries, LLCInventors: Petr Kamenický, Pavel Horsky
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Patent number: 7724066Abstract: A switching circuit that transitions using a switch transistor. During the initial stages of a high-low transition, a control loop provides supplemental pre-charge to the gate of the switch transistor to reduce high-low switching delays. Once the current flowing through the switch transistor rises to a level causing the output voltage to change at specified speed threshold, a loop opening mechanism opens the loop. Further opening of the switch transistor in the high-low transition is taken care of by a relatively constant current source. At that point, no or negligible feedback current is used to charge the gate of the switch transistor. Low-high transitions may be performed in a similar complementary manner.Type: GrantFiled: June 20, 2005Date of Patent: May 25, 2010Assignee: ON SemiconductorInventors: Petr Kamenický, Lud{hacek over (e)}k Pant{dot over (u)}{hacek over (c)}ek
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Publication number: 20090267673Abstract: A signal generation circuit that uses a waveform generation mechanism to generate predetermined waveform(s) when triggered. A triggering mechanism is configured to repeatedly trigger the waveform generation mechanism at times that are dependent on data provided by a data source. The predetermined waveform may be a bandwidth-limited pulse, but might also be a rising edge or a falling edge of a pulse. Various consecutive waveforms may be summed together to thereby formulate a continuous signal. The waveform may have particular characteristics by design.Type: ApplicationFiled: April 29, 2008Publication date: October 29, 2009Applicant: Semiconductor Components Industries, LLCInventors: Petr Kamenicky, Pavel Horsky
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Publication number: 20090066403Abstract: A protection circuit for protecting an electronic circuit against EMC disturbances and/or negative transient overvoltage pulses comprises a switch in series between a power supply and the electronic circuit to be protected; a comparator for comparing a first operating parameter with a second operating parameter and producing a comparison signal, the comparison signal being used as a control signal for controlling opening and closing of the switch; and a delay circuit adapted for delaying closing of the switch. A corresponding method is also provided.Type: ApplicationFiled: August 12, 2008Publication date: March 12, 2009Applicant: Semiconductor Components Industries, LLCInventors: Pavel Horsky, Petr Kamenicky
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Publication number: 20090051393Abstract: An output driver circuit has an input, an output node, and first and second transistors coupled in series between the output node and a first source of operating potential. Parasitic diodes of the first and second transistors are anti-serially coupled. The output driver circuit has first and second control circuits coupled to control the first and second transistors respectively. The first transistor is controlled as a controlled current source depending on a signal at the input during normal conditions when the current that flows through the output is in a first direction, and the second control circuit controls the second transistor to prevent unwanted DC current at the output from flowing through the output in a second direction. The first and second transistors are also controlled to limit unwanted transient currents during an EMC disturbance substantially symmetrically.Type: ApplicationFiled: August 8, 2008Publication date: February 26, 2009Inventors: Petr Kamenicky, Pavel Horsky