Patents by Inventor Rex Kho

Rex Kho 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).

  • Patent number: 11705917
    Abstract: A device is provided for time measurement of a clock-based signal comprising a sample stage comprising a switching device that is driven by a control signal and a capacitance (Cs), wherein the sample stage is arranged to transform an analog input signal in an analog output signal, the device further comprising an analog-to-digital converter to convert the analog output signal into a digital output signal, wherein the input signal applied to the sample stage is a reference signal and wherein the clock-based signal is applied to the control signal. Also, an according method is suggested.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: July 18, 2023
    Assignee: Infineon Technologies AG
    Inventors: Mihail Jefremow, Ketan Dewan, Rex Kho, Ralph Mueller-Eschenbach, Juergen Schaefer
  • Patent number: 11487600
    Abstract: According to various embodiments, an electronic circuit includes a plurality of clock generators wherein each clock generator is configured to store a counter value, to receive a reference clock, to change the counter value in accordance with the reference clock and to generate at least one clock signal based on the counter value. The circuit also includes a comparator configured to receive, for each of at least two of the plurality of clock generators, the counter value and compare the received counter values and an error handling circuit configured to initiate an error handling based on the result of the comparison.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: November 1, 2022
    Assignee: Infineon Technologies AG
    Inventors: Rex Kho, Udo Elsholz
  • Patent number: 11329608
    Abstract: Systems, methods, and circuits are provided for facilitating negative resistance margin testing in an oscillator circuit. An example oscillator circuit includes amplifier circuitry configured to be coupled in parallel with a resonator and variable resistance circuitry configured to, in response to a resistance control signal, adjust a resistance of the oscillator circuit.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: May 10, 2022
    Assignee: Infineon Technologies AG
    Inventors: Mihail Jefremow, Rex Kho, Ralph Mueller-Eschenbach, Juergen Schaefer, Arndt Voigtlaender, Wei Wang
  • Publication number: 20220131499
    Abstract: Systems, methods, and circuits are provided for facilitating negative resistance margin testing in an oscillator circuit. An example oscillator circuit includes amplifier circuitry configured to be coupled in parallel with a resonator and variable resistance circuitry configured to, in response to a resistance control signal, adjust a resistance of the oscillator circuit.
    Type: Application
    Filed: October 23, 2020
    Publication date: April 28, 2022
    Inventors: Mihail Jefremow, Rex Kho, Ralph Mueller-Eschenbach, Juergen Schaefer, Arndt Voigtlaender, Wei Wang
  • Publication number: 20220085824
    Abstract: A device is provided for time measurement of a clock-based signal comprising a sample stage comprising a switching device that is driven by a control signal and a capacitance (Cs), wherein the sample stage is arranged to transform an analog input signal in an analog output signal, the device further comprising an analog-to-digital converter to convert the analog output signal into a digital output signal, wherein the input signal applied to the sample stage is a reference signal and wherein the clock-based signal is applied to the control signal. Also, an according method is suggested.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 17, 2022
    Inventors: Mihail Jefremow, Ketan Dewan, Rex Kho, Ralph Mueller-Eschenbach, Juergen Schaefer
  • Publication number: 20200327007
    Abstract: According to various embodiments, an electronic circuit includes a plurality of clock generators wherein each clock generator is configured to store a counter value, to receive a reference clock, to change the counter value in accordance with the reference clock and to generate at least one clock signal based on the counter value. The circuit also includes a comparator configured to receive, for each of at least two of the plurality of clock generators, the counter value and compare the received counter values and an error handling circuit configured to initiate an error handling based on the result of the comparison.
    Type: Application
    Filed: April 15, 2020
    Publication date: October 15, 2020
    Inventors: Rex Kho, Udo Elsholz
  • Patent number: 10735006
    Abstract: A functional clock generator, including: an oscillator configured to generate an oscillator clock having an oscillator clock frequency; a control value generator configured to generate control values to ramp the oscillator clock frequency between a first frequency and a second, higher frequency; a Phase-Locked Loop (PLL) configured to generate a PLL clock having the second frequency; and a selector configured to switch between selecting the oscillator clock and the PLL clock as a functional clock when the oscillator clock frequency and the PLL clock frequency are substantially equal.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: August 4, 2020
    Assignee: Infineon Technologies AG
    Inventors: Rex Kho, Udo Elsholz
  • Patent number: 10574234
    Abstract: In accordance with an embodiment, an electronic circuit includes at least five redundant circuit parts, which are configured to execute the same function in order to provide redundancy. The at least five redundant circuit parts are arranged in such a way that critical nodes of fewer than half of the circuit parts lie on an imaginary straight line.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: February 25, 2020
    Assignee: INFINEON TECHNOLOGIES AG
    Inventor: Rex Kho
  • Publication number: 20190273499
    Abstract: In accordance with an embodiment, an electronic circuit includes at least five redundant circuit parts, which are configured to execute the same function in order to provide redundancy. The at least five redundant circuit parts are arranged in such a way that critical nodes of fewer than half of the circuit parts lie on an imaginary straight line.
    Type: Application
    Filed: February 19, 2019
    Publication date: September 5, 2019
    Inventor: Rex Kho
  • Patent number: 10180455
    Abstract: Circuits and methods are provided for a signal path between circuit parts. During normal operation, a delay is deactivated. During a burn-in test, the delay is activated. In the deactivated state, a delay component may be disconnected from a supply voltage.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: January 15, 2019
    Assignee: Infineon Technologies AG
    Inventors: Rex Kho, Markus Schuemmer, Human Boluki
  • Publication number: 20180335471
    Abstract: Circuits and methods are provided for a signal path between circuit parts. During normal operation, a delay is deactivated. During a burn-in test, the delay is activated. In the deactivated state, a delay component may be disconnected from a supply voltage.
    Type: Application
    Filed: May 22, 2017
    Publication date: November 22, 2018
    Inventors: Rex Kho, Markus Schuemmer, Human Boluki
  • Patent number: 9558114
    Abstract: The disclosure relates to an electronic memory system, and more specifically, to a system for storing data in an adjustably partitionable memory array, and a method to store data in an adjustably partitionable memory array. According to an embodiment of the disclosure, a system to store data in an adjustably partitionable memory array is provided, the system including a plurality of memory cells arranged in an array of rows and columns, a plurality of bit lines, and a plurality of switches, wherein each bit line is electrically coupled to a column of memory cells and each bit line comprises a switch configured to allow the respective bit line to be partitioned by opening of the switch.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: January 31, 2017
    Assignee: Infineon Technologies AG
    Inventors: Rex Kho, Michael Hassel, Wolfgang Beck, Thomas Liebermann
  • Patent number: 9490787
    Abstract: An embodiment integrated circuit (IC) clock distributor system includes a first IC. The first IC includes a clock synchronizer circuit and a clock generator circuit. The clock synchronizer circuit includes a first input coupled to a first clock transfer path including a replica delay of a portion of a first signal path included in an external IC. The clock synchronizer circuit also includes a second input coupled to a second clock transfer path. The clock generator circuit also includes an input coupled to an output of at least one of a reference oscillator and the clock synchronizer circuit. Delay of the second clock transfer path includes delay of the first signal path.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: November 8, 2016
    Assignee: Infineon Technologies AG
    Inventors: Rex Kho, Andreas Weisgerber, Dirk Hesidenz
  • Patent number: 9466377
    Abstract: A embodiment relates to a method for processing an erase counter comprising erase counter fields, the method comprising the steps of (i) determining an unused erase counter field; (ii) writing a selection code and an address information in the unused erase counter field, wherein the selection code and the address information are combined to determine at least one physical address of a memory.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: October 11, 2016
    Assignee: Infineon Technologies AG
    Inventors: Rex Kho, Mathew Neal
  • Patent number: 9417957
    Abstract: A method of detecting bit errors in a data storage device is provided, which includes comparing a first bit sequence accessed during a read out operation of the data storage device with a second bit sequence that corresponds to an expected memory state of the data storage device.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: August 16, 2016
    Assignee: Infineon Technologies AG
    Inventors: Rex Kho, Thomas Rabenalt
  • Publication number: 20150243359
    Abstract: A embodiment relates to a method for processing an erase counter comprising erase counter fields, the method comprising the steps of (i) determining an unused erase counter field; (ii) writing a selection code and an address information in the unused erase counter field, wherein the selection code and the address information are combined to determine at least one physical address of a memory.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 27, 2015
    Applicant: Infineon Technologies AG
    Inventors: Rex KHO, Mathew NEAL
  • Publication number: 20150169438
    Abstract: A method for incrementing an erase counter comprising several marker units is suggested, the method comprising the steps: (i) setting a marker unit in case a preceding marker unit was set; and (ii) not setting the marker unit in case the preceding marker unit was not set.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 18, 2015
    Applicant: Infineon Technologies AG
    Inventors: Rex KHO, Julie HENZLER, Jens ROSENBUSCH, Jörg SYASSEN
  • Publication number: 20150100827
    Abstract: A method of detecting bit errors in a data storage device is provided, which includes comparing a first bit sequence accessed during a read out operation of the data storage device with a second bit sequence that corresponds to an expected memory state of the data storage device.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Inventors: Rex Kho, Thomas Rabenalt
  • Publication number: 20140359249
    Abstract: The disclosure relates to an electronic memory system, and more specifically, to a system for storing data in an adjustably partitionable memory array, and a method to store data in an adjustably partitionable memory array. According to an embodiment of the disclosure, a system to store data in an adjustably partitionable memory array is provided, the system including a plurality of memory cells arranged in an array of rows and columns, a plurality of bit lines, and a plurality of switches, wherein each bit line is electrically coupled to a column of memory cells and each bit line comprises a switch configured to allow the respective bit line to be partitioned by opening of the switch.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 4, 2014
    Inventors: Rex Kho, Michael Hassel, Wolfgang Beck, Thomas Liebermann
  • Patent number: 8863574
    Abstract: A yaw rate sensor having a substrate and a seismic mass is described, in which the seismic mass is excitable to a working oscillation relative to the substrate via a drive unit, and a Coriolis deflection of the seismic mass is detectable relative to the substrate, in which the yaw rate sensor furthermore has an interrupt interface, the drive unit being configured to reduce a frequency and/or an amplitude of the working oscillation if an interrupt signal is present at the interrupt interface.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: October 21, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Rex Kho, Oliver Kohn, Fouad Bennini, Julian Bartholomeyczik