Patents by Inventor Kuoruey Han
Kuoruey Han 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: 11632147Abstract: A physical layer transceiver for a data channel includes receiver circuitry configured to receive signals on the data channel, transmit circuitry configured to transmit signals onto the data channel, and adaptive filter circuitry coupled to the receiver circuitry and the transmit circuitry and configured to filter the data channel by operating on input frequency-domain data samples to output filtered data samples. The adaptive filter circuitry includes error sample generation circuitry configured to generate error samples representing a difference between a target response and the filtered data samples, arithmetic-only circuitry configured to approximate a windowing function to operate on the error samples, and output sample generation circuitry configured to operate on windowed error samples to provide the output filtered data samples. The comparison circuitry may be configured for time-domain operation and may further be configured to transform the error signals into frequency-domain error signals.Type: GrantFiled: August 12, 2021Date of Patent: April 18, 2023Assignee: Marvell Asia Pte, Ltd.Inventors: KuoRuey Han, Brett McClellan, Leon Yang
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Publication number: 20220052725Abstract: A physical layer transceiver for a data channel includes receiver circuitry configured to receive signals on the data channel, transmit circuitry configured to transmit signals onto the data channel, and adaptive filter circuitry coupled to the receiver circuitry and the transmit circuitry and configured to filter the data channel by operating on input frequency-domain data samples to output filtered data samples. The adaptive filter circuitry includes error sample generation circuitry configured to generate error samples representing a difference between a target response and the filtered data samples, arithmetic-only circuitry configured to approximate a windowing function to operate on the error samples, and output sample generation circuitry configured to operate on windowed error samples to provide the output filtered data samples. The comparison circuitry may be configured for time-domain operation and may further be configured to transform the error signals into frequency-domain error signals.Type: ApplicationFiled: August 12, 2021Publication date: February 17, 2022Inventors: KuoRuey Han, Brett McClellan, Leon Yang
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Patent number: 10484046Abstract: The systems and methods for a twisted pair transceiver with correlation detection includes a transceiver system operating on a cable. The transceiver system includes a receiver to obtain one or more data samples related to one or more encoded data symbols. The transceiver system further includes a first correlation filter to generate a first correlation output based on the one or more data samples, and a second correlation filter to generate a second correlation output based on the one or more data samples. The transceiver system further includes a detector. The detector compares the first correlation output with the second correlation output, generates an output data bit based on a comparison result, and sends the output data bit for data decoding.Type: GrantFiled: June 7, 2018Date of Patent: November 19, 2019Assignee: Marvell International Ltd.Inventors: Brett McClellan, Kuoruey Han
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Patent number: 10009062Abstract: The systems and methods for a twisted pair transceiver with correlation detection includes a transceiver system operating on a cable. The transceiver system includes a receiver to obtain one or more data samples related to one or more encoded data symbols. The transceiver system further includes a first correlation filter to generate a first correlation output based on the one or more data samples, and a second correlation filter to generate a second correlation output based on the one or more data samples. The transceiver system further includes a detector. The detector compares the first correlation output with the second correlation output, generates an output data bit based on a comparison result, and sends the output data bit for data decoding.Type: GrantFiled: February 16, 2017Date of Patent: June 26, 2018Assignee: Marvell International Ltd.Inventors: Brett McClellan, Kuoruey Han
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Patent number: 9577708Abstract: The systems and methods for a twisted pair transceiver with correlation detection includes a transceiver system operating on a cable. The transceiver system includes a receiver to obtain one or more data samples related to one or more encoded data symbols. The transceiver system further includes a first correlation filter to generate a first correlation output based on the one or more data samples, and a second correlation filter to generate a second correlation output based on the one or more data samples. The transceiver system further includes a detector. The detector compares the first correlation output with the second correlation output, generates an output data bit based on a comparison result, and sends the output data bit for data decoding.Type: GrantFiled: October 7, 2015Date of Patent: February 21, 2017Assignee: Marvell International Ltd.Inventors: Brett McClellan, Kuoruey Han
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Patent number: 8842767Abstract: Methods and systems to substantially eliminate effects of EMI burst noise in an Ethernet system are provided herein. The method includes the step of computing and storing filter coefficients configured to adapt to a range of EMI frequencies. The method further comprises the step of receiving a signal and detecting EMI and frequency of the EMI in the received signal. The method further comprises selecting filter coefficients corresponding to the determined frequency of the detected EMI and adjusting a frequency response of one or more filters using the selected filter coefficients so as to substantially eliminate effects of the EMI in the received signal. The method further includes the step of sending filter coefficients to a link partner corresponding to the frequency of the detected EMI.Type: GrantFiled: April 30, 2010Date of Patent: September 23, 2014Assignee: Broadcom CorporationInventors: Tooraj Esmailian, Scott Powell, Chung Ming Tu, KuoRuey Han, Kadir Dinc, German Feyh
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Patent number: 8595278Abstract: Aspects of a method and system for unconstrained frequency domain adaptive filtering include one or more circuits that are operable to select one or more time domain coefficients in a current filter partition. A value may be computed for each of the selected one or more time domain coefficients based on a corresponding plurality of frequency domain coefficients. The corresponding plurality of frequency domain coefficients may be adjusted based on the computed values. A subsequent plurality of frequency domain coefficients in a subsequent filter partition may be adjusted based on the computed values. Input signals may be processed in the current filter partition based on the adjusted corresponding plurality of frequency domain coefficients. A time-adjusted version of the input signals may be processed in a subsequent filter partition based on the adjusted subsequent plurality of frequency domain coefficients.Type: GrantFiled: June 23, 2009Date of Patent: November 26, 2013Assignee: Broadcom CorporationInventors: Kuoruey Han, Peiqing Wang, Linghsiao Wang, Kishore Kota, Arash Farhoodfar
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Publication number: 20110103459Abstract: Methods and systems to substantially eliminate effects of EMI burst noise in an Ethernet system are provided herein. The method includes the step of computing and storing filter coefficients configured to adapt to a range of EMI frequencies. The method further comprises the step of receiving a signal and detecting EMI and frequency of the EMI in the received signal. The method further comprises selecting filter coefficients corresponding to the determined frequency of the detected EMI and adjusting a frequency response of one or more filters using the selected filter coefficients so as to substantially eliminate effects of the EMI in the received signal. The method further includes the step of sending filter coefficients to a link partner corresponding to the frequency of the detected EMI.Type: ApplicationFiled: April 30, 2010Publication date: May 5, 2011Applicant: Broadcom CorporationInventors: Tooraj ESMAILIAN, Scott POWELL, Chung Ming TU, KuoRuey HAN, Kadir DINC, German FEYH
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Publication number: 20100228810Abstract: Aspects of a method and system for unconstrained frequency domain adaptive filtering include one or more circuits that are operable to select one or more time domain coefficients in a current filter partition. A value may be computed for each of the selected one or more time domain coefficients based on a corresponding plurality of frequency domain coefficients. The corresponding plurality of frequency domain coefficients may be adjusted based on the computed values. A subsequent plurality of frequency domain coefficients in a subsequent filter partition may be adjusted based on the computed values. Input signals may be processed in the current filter partition based on the adjusted corresponding plurality of frequency domain coefficients. A time-adjusted version of the input signals may be processed in a subsequent filter partition based on the adjusted subsequent plurality of frequency domain coefficients.Type: ApplicationFiled: June 23, 2009Publication date: September 9, 2010Inventors: Kuoruey Han, Peiqing Wang, Linghsiao Wang, Kishore Kota, Arash Farhoodfar