Patents by Inventor Richard Meller
Richard Meller 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: 10812120Abstract: Indication of an amount of processing performed in detection and removal of ingress noise may be provided. A frequency domain representation of a narrowband region of a digital input signal may be received. The received frequency domain representation of the narrowband region may be compared with a predetermined threshold. Results from the comparison of the received frequency domain representation of the narrowband region with the predetermined threshold may be aggregated. Based on the aggregated results, an indication of an amount of processing performed by an ingress exciser in removing the ingress noise may be provided.Type: GrantFiled: September 1, 2019Date of Patent: October 20, 2020Assignee: Cisco Technology, Inc.Inventors: Richard Meller, Glendon L. Akins, III, Denis Downey, James An, Koen Van Renterghem
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Publication number: 20190386691Abstract: Indication of an amount of processing performed in detection and removal of ingress noise may be provided. A frequency domain representation of a narrowband region of a digital input signal may be received. The received frequency domain representation of the narrowband region may be compared with a predetermined threshold. Results from the comparison of the received frequency domain representation of the narrowband region with the predetermined threshold may be aggregated. Based on the aggregated results, an indication of an amount of processing performed by an ingress exciser in removing the ingress noise may be provided.Type: ApplicationFiled: September 1, 2019Publication date: December 19, 2019Applicant: Cisco Technology, Inc.Inventors: Richard Meller, Glendon L. Akins, III, Denis Downey, James An, Koen Van Renterghem
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Patent number: 10404298Abstract: Indication of an amount of processing performed in detection and removal of ingress noise may be provided. A frequency domain representation of a narrowband region of a digital input signal may be received. The received frequency domain representation of the narrowband region may be compared with a predetermined threshold. Results from the comparison of the received frequency domain representation of the narrowband region with the predetermined threshold may be aggregated. Based on the aggregated results, an indication of an amount of processing performed by an ingress exciser in removing the ingress noise may be provided.Type: GrantFiled: October 11, 2017Date of Patent: September 3, 2019Assignee: Cisco Technology, Inc.Inventors: Richard Meller, Glendon L. Akins, III, Denis Downey, James An, Koen Van Renterghem
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Publication number: 20180034490Abstract: Indication of an amount of processing performed in detection and removal of ingress noise may be provided. A frequency domain representation of a narrowband region of a digital input signal may be received. The received frequency domain representation of the narrowband region may be compared with a predetermined threshold. Results from the comparison of the received frequency domain representation of the narrowband region with the predetermined threshold may be aggregated. Based on the aggregated results, an indication of an amount of processing performed by an ingress exciser in removing the ingress noise may be provided.Type: ApplicationFiled: October 11, 2017Publication date: February 1, 2018Applicant: Cisco Technology, Inc.Inventors: Richard Meller, Glendon L. Akins, III, Denis Downey, James An, Koen Van Renterghem
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Patent number: 9800276Abstract: Indication of an amount of processing performed in detection and removal of ingress noise may be provided. A frequency domain representation of a narrowband region of a digital input signal may be received. The received frequency domain representation of the narrowband region may be compared with a predetermined threshold. Results from the comparison of the received frequency domain representation of the narrowband region with the predetermined threshold may be aggregated. Based on the aggregated results, an indication of an amount of processing performed by an ingress excizer in removing the ingress noise may be provided.Type: GrantFiled: October 8, 2013Date of Patent: October 24, 2017Assignee: Cisco Technology, Inc.Inventors: Richard Meller, Glendon L. Akins, III, Denis Downey, James An, Koen Van Renterghem
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Patent number: 9184878Abstract: Presented herein are non-disruptive noise estimation techniques that utilize a correlation between attributes of a received signal and the noise to generate estimated noise values for symbols of the signal. More specifically, a digital signal comprising symbols transmitted over a telecommunications network is received. For each of a plurality of the symbols, an estimated noise value associated with the respective symbol is generated through a correlation of a log-likelihood ratio (LLR) value to predetermined noise values. The estimated noise values for the plurality of symbols are used to generate noise information representing time and frequency characteristics of noise in the telecommunications network.Type: GrantFiled: June 27, 2014Date of Patent: November 10, 2015Assignee: Cisco Technology, Inc.Inventors: Hang Jin, Koen Van Renterghem, Richard Meller, Denis Downey, Glendon L. Akins, III
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Patent number: 9071401Abstract: Presented herein are pilot-less noise estimation techniques that utilize a correlation between attributes of a received signal and the noise to generate signal-to-noise ratio (SNR) estimate for the signal. More specifically, an interval of a digital signal is received a log-likelihood ratio (LLR) value is calculated for a plurality of bits in the interval of the signal. A scalar value that relates to a distribution of the calculated LLR values is computed. The SNR for the interval of the signal is determined based on a predetermined correlation between the scalar value and noise within the received interval of the signal.Type: GrantFiled: October 17, 2013Date of Patent: June 30, 2015Assignee: Cisco Technology, Inc.Inventors: Hang Jin, Koen Van Renterghem, Richard Meller, Denis Downey
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Publication number: 20150110205Abstract: Presented herein are non-disruptive noise estimation techniques that utilize a correlation between attributes of a received signal and the noise to generate estimated noise values for symbols of the signal. More specifically, a digital signal comprising symbols transmitted over a telecommunications network is received. For each of a plurality of the symbols, an estimated noise value associated with the respective symbol is generated through a correlation of a log-likelihood ratio (LLR) value to predetermined noise values. The estimated noise values for the plurality of symbols are used to generate noise information representing time and frequency characteristics of noise in the telecommunications network.Type: ApplicationFiled: June 27, 2014Publication date: April 23, 2015Inventors: Hang Jin, Koen Van Renterghem, Richard Meller, Denis Downey, Glendon L. Akins, III
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Publication number: 20150110227Abstract: Presented herein are pilot-less noise estimation techniques that utilize a correlation between attributes of a received signal and the noise to generate signal-to-noise ratio (SNR) estimate for the signal. More specifically, an interval of a digital signal is received a log-likelihood ratio (LLR) value is calculated for a plurality of bits in the interval of the signal. A scalar value that relates to a distribution of the calculated LLR values is computed. The SNR for the interval of the signal is determined based on a predetermined correlation between the scalar value and noise within the received interval of the signal.Type: ApplicationFiled: October 17, 2013Publication date: April 23, 2015Applicant: Cisco Technology, Inc.Inventors: Hang Jin, Koen Van Renterghem, Richard Meller, Denis Downey
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Publication number: 20150098534Abstract: Indication of an amount of processing performed in detection and removal of ingress noise may be provided. A frequency domain representation of a narrowband region of a digital input signal may be received. The received frequency domain representation of the narrowband region may be compared with a predetermined threshold. Results from the comparison of the received frequency domain representation of the narrowband region with the predetermined threshold may be aggregated. Based on the aggregated results, an indication of an amount of processing performed by an ingress exciser in removing the ingress noise may be provided.Type: ApplicationFiled: October 8, 2013Publication date: April 9, 2015Applicant: Cisco Technology, Inc.Inventors: Richard Meller, Glendon L. Akins, III, Denis Downey, James An, Koen Van Renterghem
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Patent number: 7817540Abstract: The present disclosure relates an improved cable data switching unit that provides a fail-over system whereby one line card can protect a plurality of US (upstream) or DS (downstream) channel line cards, providing N+1 protection, with one linecard being able to protect N number of working linecards. When a failure is detected in a working linecard, the signals being routed by the failing linecards are re-routed seamlessly to a protect linecard. This disclosure provides for data to be passively routed, providing for data flow even if power is lost.Type: GrantFiled: May 8, 2002Date of Patent: October 19, 2010Assignee: Cisco Technology, Inc.Inventors: Feisal Daruwalla, John T. Chapman, Richard Meller, Roland Chan, Nicos Achilleoudis