Patents by Inventor John Chrostowski
John Chrostowski 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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Publication number: 20240048941Abstract: Signals used to test for upstream signal leaks in a hybrid fiber-coaxial (HFC) network may be interleaved with client data and strategically timed to be received by a leak detection device with a one-hundred percent probability of intercept. A method includes receiving an indication that a user device is in proximity to a computing device. The method includes determining, based on the indication that the user device is in proximity to the computing device, signal information. The method includes causing, based on the signal information, the user device to output a signal. The method includes determining, based on an indication that the signal was received by the computing device, a location of a network leak.Type: ApplicationFiled: July 19, 2023Publication date: February 8, 2024Inventors: Daniel Rice, John Chrostowski, Benny Lewandowski, De Fu Li, Robert Gaydos
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Patent number: 11758362Abstract: Signals used to test for upstream signal leaks in a hybrid fiber-coaxial (HFC) network may be interleaved with client data and strategically timed to be received by a leak detection device with a one-hundred percent probability of intercept. A method includes receiving an indication that a user device is in proximity to a computing device. The method includes determining, based on the indication that the user device is in proximity to the computing device, signal information. The method includes causing, based on the signal information, the user device to output a signal. The method includes determining, based on an indication that the signal was received by the computing device, a location of a network leak.Type: GrantFiled: April 2, 2021Date of Patent: September 12, 2023Assignee: Comcast Cable Communications, LLCInventors: Daniel Rice, John Chrostowski, Benny Lewandowski, De Fu Li, Robert Gaydos
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Publication number: 20220322037Abstract: Signals used to test for upstream signal leaks in a hybrid fiber-coaxial (HFC) network may be interleaved with client data and strategically timed to be received by a leak detection device with a one-hundred percent probability of intercept. A method includes receiving an indication that a user device is in proximity to a computing device. The method includes determining, based on the indication that the user device is in proximity to the computing device, signal information. The method includes causing, based on the signal information, the user device to output a signal. The method includes determining, based on an indication that the signal was received by the computing device, a location of a network leak.Type: ApplicationFiled: April 2, 2021Publication date: October 6, 2022Inventors: Daniel Rice, John Chrostowski, Benny Lewandowski, De Fu Li, Robert Gaydos
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Patent number: 11342994Abstract: A multimode combiner or coupler (MMC) may combine the inputs into a larger core multimode fiber. The multimode combiner may be combined with a re-transmitting laser for detecting and re-transmitting signals. Thus, the multi-mode combiner may detect and combine input signals, and then retransmit the detected, combined signal. The detection can be implemented with multiple single mode fibers to small single mode detectors or a multi-mode coupler with a larger multi-mode detectors. In embodiments of the MMC, a bi-directional optical splitter/combiner includes a transmitter for re-transmitting an RF signal received at a receiver, a first wave division multiplexer (WDM) combiner combining the output of the first transmitter in an upstream direction to a downstream signal in a downstream direction, and a second WDM combiner combining split downstream signals in the downstream direction with upstream signals received via at least two optical fiber inputs.Type: GrantFiled: April 6, 2021Date of Patent: May 24, 2022Assignee: ARRIS Enterprises LLCInventors: Venkatesh G. Mutalik, Marcel F. Schemmann, Dean Stoneback, John Chrostowski
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Publication number: 20210306074Abstract: A multimode combiner or coupler (MMC) may combine the inputs into a larger core multimode fiber. The multimode combiner may be combined with a re-transmitting laser for detecting and re-transmitting signals. Thus, the multi-mode combiner may detect and combine input signals, and then retransmit the detected, combined signal. The detection can be implemented with multiple single mode fibers to small single mode detectors or a multi-mode coupler with a larger multi-mode detectors. In embodiments of the MMC, a bi-directional optical splitter/combiner includes a transmitter for re-transmitting an RF signal received at a receiver, a first wave division multiplexer (WDM) combiner combining the output of the first transmitter in an upstream direction to a downstream signal in a downstream direction, and a second WDM combiner combining split downstream signals in the downstream direction with upstream signals received via at least two optical fiber inputs.Type: ApplicationFiled: April 6, 2021Publication date: September 30, 2021Inventors: Venkatesh G. Mutalik, Marcel F. Schemmann, Dean Stoneback, John Chrostowski
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Patent number: 10972183Abstract: A multimode combiner or coupler (MMC) may combine the inputs into a larger core multimode fiber. The multimode combiner may be combined with a re-transmitting laser for detecting and re-transmitting signals. Thus, the multi-mode combiner may detect and combine input signals, and then retransmit the detected, combined signal. The detection can be implemented with multiple single mode fibers to small single mode detectors or a multi-mode coupler with a larger multi-mode detectors. In embodiments of the MMC, a bi-directional optical splitter/combiner includes a transmitter for re-transmitting an RF signal received at a receiver, a first wave division multiplexer (WDM) combiner combining the output of the first transmitter in an upstream direction to a downstream signal in a downstream direction, and a second WDM combiner combining split downstream signals in the downstream direction with upstream signals received via at least two optical fiber inputs.Type: GrantFiled: April 2, 2015Date of Patent: April 6, 2021Assignee: ARRIS Enterprises LLCInventors: Venkatesh G. Mutalik, Marcel F. Schemmann, Dean Stoneback, John Chrostowski
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Patent number: 10931067Abstract: A cable distribution plant is protected from noise where a modem housing encloses a switching power supply and digital electronics, the modem switching power supply for receiving AC mains power via an EMI filter and modem digital electronics for receiving a switching power supply output via an LC filter for filtering noise at the switching power supply frequency wherein multiple filters used with respective modems at subscriber sites protect the head-end from switching power supply harmonic noise otherwise aggregated by the nodes and passed to the head end.Type: GrantFiled: October 26, 2018Date of Patent: February 23, 2021Assignee: HOLLAND ELECTRONICS, LLCInventors: George Goebel, Michael Holland, Michael Bott, John Chrostowski
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Publication number: 20200099178Abstract: A cable distribution plant is protected from noise by a distributed cable modem filter.Type: ApplicationFiled: October 26, 2018Publication date: March 26, 2020Inventors: George Goebel, Michael Holland, Michael Bott, John Chrostowski
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Patent number: 10250959Abstract: An active receiver structure that combines a large number of detectors without bandwidth penalty may provide a better signal-to-noise ratio (SNR) than conventional Radio Frequency over Glass (RFoG) networks. A transmission line receiver is used to combine a large number of optical detectors into a single radio frequency (RF) signal without a bandwidth penalty and a modest penalty in noise performance that results in an SNR that is much better than traditional optical combining techniques that are followed by a single detector. An optical multiplexer structure may be designed around the active splitter such that passive optical network (PON) operation is not impeded.Type: GrantFiled: May 8, 2017Date of Patent: April 2, 2019Assignee: ARRIS Enterprises LLCInventors: Marcel F. Schemmann, Venkatesh G. Mutalik, John Chrostowski, Amarildo Vieira
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Publication number: 20170245031Abstract: An active receiver structure that combines a large number of detectors without bandwidth penalty may provide a better signal-to-noise ratio (SNR) than conventional Radio Frequency over Glass (RFoG) networks. A transmission line receiver is used to combine a large number of optical detectors into a single radio frequency (RF) signal without a bandwidth penalty and a modest penalty in noise performance that results in an SNR that is much better than traditional optical combining techniques that are followed by a single detector. An optical multiplexer structure may be designed around the active splitter such that passive optical network (PON) operation is not impeded.Type: ApplicationFiled: May 8, 2017Publication date: August 24, 2017Inventors: Marcel F. Schemmann, Venkatesh G. Mutalik, John Chrostowski, Amarildo Vieira
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Patent number: 9686014Abstract: An active receiver structure that combines a large number of detectors without bandwidth penalty may provide a better signal-to-noise ratio (SNR) than conventional Radio Frequency over Glass (RFoG) networks. A transmission line receiver is used to combine a large number of optical detectors into a single radio frequency (RF) signal without a bandwidth penalty and a modest penalty in noise performance that results in an SNR that is much better than traditional optical combining techniques that are followed by a single detector. An optical multiplexer structure may be designed around the active splitter such that passive optical network (PON) operation is not impeded.Type: GrantFiled: April 6, 2015Date of Patent: June 20, 2017Assignee: ARRIS Enterprises LLCInventors: Marcel F. Schemmann, Venkatesh G. Mutalik, John Chrostowski, Amarildo Vieira
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Publication number: 20150304042Abstract: An active receiver structure that combines a large number of detectors without bandwidth penalty may provide a better signal-to-noise ratio (SNR) than conventional Radio Frequency over Glass (RFoG) networks. A transmission line receiver is used to combine a large number of optical detectors into a single radio frequency (RF) signal without a bandwidth penalty and a modest penalty in noise performance that results in an SNR that is much better than traditional optical combining techniques that are followed by a single detector. An optical multiplexer structure may be designed around the active splitter such that passive optical network (PON) operation is not impeded.Type: ApplicationFiled: April 6, 2015Publication date: October 22, 2015Inventors: Marcel F. Schemmann, Venkatesh G. Mutalik, John Chrostowski, Amarildo Vieira
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Publication number: 20150304034Abstract: A multimode combiner or coupler (MMC) may combine the inputs into a larger core multimode fiber. The multimode combiner may be combined with a re-transmitting laser for detecting and re-transmitting signals. Thus, the multi-mode combiner may detect and combine input signals, and then retransmit the detected, combined signal. The detection can be implemented with multiple single mode fibers to small single mode detectors or a multi-mode coupler with a larger multi-mode detectors. In embodiments of the MMC, a bi-directional optical splitter/combiner includes a transmitter for re-transmitting an RF signal received at a receiver, a first wave division multiplexer (WDM) combiner combining the output of the first transmitter in an upstream direction to a downstream signal in a downstream direction, and a second WDM combiner combining split downstream signals in the downstream direction with upstream signals received via at least two optical fiber inputs.Type: ApplicationFiled: April 2, 2015Publication date: October 22, 2015Inventors: Venkatesh G. Mutalik, Marcel F. Schemmann, Dean Stoneback, John Chrostowski