Patents by Inventor Niki Pantelias
Niki Pantelias 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: 20230254175Abstract: In some aspects, the disclosure is directed to methods and systems for interference mitigation and cancellation in full duplex amplifiers for cable modem or broadband communication systems. In many implementations, an interference canceller in the downstream path may be provided to equalize composite power on the FDX upstream subbands within a predetermined range of amplitude (e.g. X dB) from the desired downstream signal on the same subband, without affecting the downstream subbands.Type: ApplicationFiled: May 24, 2022Publication date: August 10, 2023Inventors: Avi Kliger, Niki Pantelias, Hagay Garti, Anatoli Shindler
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Publication number: 20220399981Abstract: In some aspects, the disclosure is directed to methods and systems for overlapping orthogonal frequency-division multiple-access (OFDMA) channels for coexistence of devices and legacy devices, including DOCSIS 3.1 mid-split and high-split cable modems (CMs). Described are systems and methods for providing a CMTS with capability for managing overlapping OFDMA channels to support mid-split and high-split CMs, without modification to legacy CMs.Type: ApplicationFiled: June 13, 2022Publication date: December 15, 2022Inventors: Niki Pantelias, Lisa Denney, Avi Kliger
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Patent number: 9722764Abstract: Embodiments provide solutions to reduce power utilization (either at individual cable modems or in the overall network) in future cable modem networks. Particularly, embodiments seek to reduce power utilization at individual cable modems and in the overall network, by allocating upstream frequency bands and/or transmission modulation schemes among cable modems while accounting for cable loss experienced by individual upstream cable modem transmissions. According to embodiments, frequency spectrum and modulation scheme allocation techniques are provided to optimize power utilization and enable lower upstream transmission power by cable modems while maintaining similar signal strength of received signals or lower signal strength with reduced SNR requirements using lower capacity modulation at the headend.Type: GrantFiled: April 15, 2014Date of Patent: August 1, 2017Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Richard Prodan, Niki Pantelias, Thomas Kolze
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Patent number: 9479621Abstract: Embodiments include systems and methods for enabling a physical layer (PHY) link signaling channel between a network termination modem and a cable modem in a cable network. The PHY link signaling channel is embedded within the same multi-carrier channel as the data and enables PHY link up between the network termination modem and cable modern without involvement of higher layers (e.g., MAC). The PHY link signaling channel can be implemented in the downstream (from the network termination modem to the cable modem(s)) or in the upstream from a cable modem to the network termination modem. Embodiments are applicable to any known cable network, and particularly to cable networks implementing the DOCSIS and EPoC standards.Type: GrantFiled: August 19, 2015Date of Patent: October 25, 2016Assignee: Broadcom CorporationInventors: Avi Kliger, Yitshak Ohana, Niki Pantelias, Leo Montreuil, Jonathan S. Min, Edward Boyd, Mark Laubach, Victor Hou
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Patent number: 9450692Abstract: A method, system and computer program product to schedule transmissions in a two-tier network are provided. In an example, the system includes a Data Over Cable Service Interface Specification (DOCSIS) scheduler configured to generate a MAP message to allocate bandwidth and a first instance in time to a cable modem to transmit data to a branch node. The system further includes a MAP message translator coupled to the DOCSIS scheduler and configured to determine a second instance in time at which data from the cable modem arrives at the branch node and generate a GATE message that grants the branch node bandwidth to transmit the data received from the cable modem at the second instance in time to a headend node.Type: GrantFiled: May 28, 2015Date of Patent: September 20, 2016Assignee: Broadcom CorporationInventor: Niki Pantelias
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Publication number: 20160218851Abstract: Embodiments provide solutions to reduce power utilization (either at individual cable modems or in the overall network) in future cable modem networks. Particularly, embodiments seek to reduce power utilization at individual cable modems and in the overall network, by allocating upstream frequency bands and/or transmission modulation schemes among cable modems while accounting for cable loss experienced by individual upstream cable modem transmissions. According to embodiments, frequency spectrum and modulation scheme allocation techniques are provided to optimize power utilization and enable lower upstream transmission power by cable modems while maintaining similar signal strength of received signals or lower signal strength with reduced SNR requirements using lower capacity modulation at the headend.Type: ApplicationFiled: April 15, 2014Publication date: July 28, 2016Applicant: Broadcom CorporationInventors: Richard PRODAN, Niki Pantelias, Thomas Kolze
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Patent number: 9281957Abstract: A system and method for allowing flexible associations between PHY devices and MAC devices in a point-to-multipoint communications system, such that a given upstream channel is not deterministically bound to a particular MAC device. An upstream MAC device may connect to a varying number of PHY devices depending on configured PHY capacity. Upstream service flows are intact by noting Service identifiers (SIDs) of each burst received at a PHY device. A burst is then directed via a switching infrastructure to the appropriate MAC on the basis of the SID.Type: GrantFiled: May 7, 2012Date of Patent: March 8, 2016Assignee: Broadcom CorporationInventor: Niki Pantelias
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Patent number: 9237030Abstract: A cable modem that supports stateless requesting and/or limited contention-based requesting is provided herein. In an example, a physical layer (PHY) configured to communicate over a plurality of upstream channels is provided. A bandwidth requester is provided to request bandwidth using contention-based requesting over a first subset of the upstream channels for contention-based flows and request bandwidth using stateless requesting over a second subset of the upstream channels for stateless flows.Type: GrantFiled: August 20, 2012Date of Patent: January 12, 2016Assignee: Broadcom CorporationInventors: Niki Pantelias, Lisa Denney, Edward Boyd, Andres Alvarez, Scott Hollums
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Publication number: 20150358437Abstract: Embodiments include systems and methods for enabling a physical layer (PHY) link signaling channel between a network termination modem and a cable modem in a cable network. The PHY link signaling channel is embedded within the same multi-carrier channel as the data and enables PHY link up between the network termination modem and cable modern without involvement of higher layers (e.g., MAC). The PHY link signaling channel can be implemented in the downstream (from the network termination modem to the cable modem(s)) or in the upstream from a cable modem to the network termination modem. Embodiments are applicable to any known cable network, and particularly to cable networks implementing the DOCSIS and EPoC standards.Type: ApplicationFiled: August 19, 2015Publication date: December 10, 2015Applicant: Broadcom CorporationInventors: Avi KLIGER, Yitshak Ohana, Niki Pantelias, Leo Montreuil, Jonathan S. Min, Edward Boyd, Mark Laubach, Victor Hou
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Publication number: 20150263817Abstract: A method, system and computer program product to schedule transmissions in a two-tier network are provided. In an example, the system includes a Data Over Cable Service Interface Specification (DOCSIS) scheduler configured to generate a MAP message to allocate bandwidth and a first instance in time to a cable modem to transmit data to a branch node. The system further includes a MAP message translator coupled to the DOCSIS scheduler and configured to determine a second instance in time at which data from the cable modem arrives at the branch node and generate a GATE message that grants the branch node bandwidth to transmit the data received from the cable modem at the second instance in time to a headend node.Type: ApplicationFiled: May 28, 2015Publication date: September 17, 2015Applicant: Broadcom CorporationInventor: Niki PANTELIAS
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Patent number: 9118444Abstract: Embodiments include systems and methods for enabling a physical layer (PHY) link signaling channel between a network termination modem and a cable modem in a cable network. The PHY link signaling channel is embedded within the same multi-carrier channel as the data and enables PHY link up between the network termination modem and cable modem without involvement of higher layers (e.g., MAC). The PHY link signaling channel can be implemented in the downstream (from the network termination modem to the cable modem(s)) or in the upstream from a cable modem to the network termination modem. Embodiments are applicable to any known cable network, and particularly to cable networks implementing the DOCSIS and EPoC standards.Type: GrantFiled: September 17, 2013Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Avi Kliger, Yitshak Ohana, Niki Pantelias, Leo Montreuil, Jonathan S. Min, Edward Boyd, Mark Laubach, Victor Hou
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Patent number: 9055483Abstract: A method, system and computer program product to schedule transmissions in a two-tier network are provided. In an example, the system includes a Data Over Cable Service Interface Specification (DOCSIS) scheduler configured to generate a MAP message to allocate bandwidth and a first instance in time to a cable modem to transmit data to a branch node. The system further includes a MAP message translator coupled to the DOCSIS scheduler and configured to determine a second instance in time at which data from the cable modem arrives at the branch node and generate a GATE message that grants the branch node bandwidth to transmit the data received from the cable modem at the second instance in time to a headend node.Type: GrantFiled: June 29, 2012Date of Patent: June 9, 2015Assignee: Broadcom CorporationInventor: Niki Pantelias
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Patent number: 9049399Abstract: Embodiments of a digital up-converter and an N-channel modulator are provided herein. The embodiments of the digital up-converter, in combination with the N-channel modulator, are capable of efficiently filling the spectrum of one or more RF signals with one or more types of information signals. For example, the digital up-converter can fill the spectrum of one or more RF signals with both broadcast and narrowcast video and data signals. In addition, the digital up-converter is capable of flexibly mapping the information signals to one or more channels of the one or more RF signals using a novel, three-level switching architecture.Type: GrantFiled: January 11, 2013Date of Patent: June 2, 2015Assignee: Broadcom CorporationInventors: Joel I. Danzig, Richard S. Prodan, Niki Pantelias, Thomas Kolze, Victor T. Hou, Taruna Tjahjadi
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Patent number: 9020014Abstract: A cable modem termination system (CMTS) is disclosed that allocates one or more minislots of a super-frame arrangement to cable modems for upstream transmission. The super-frame arrangement includes multiple minislots that correspond to multiple communication channels of one or more super-frames. The CMTS receives requests for upstream bandwidth from the cable modems. The CMTS continuously allocates the minislots of the super-frame to provide upstream bandwidth grants to accommodate these requests. The CMTS communicates the upstream bandwidth grants as a single upstream bandwidth allocation map (MAP) to the cable modems.Type: GrantFiled: December 30, 2011Date of Patent: April 28, 2015Assignee: Broadcom CorporationInventors: Niki Pantelias, Scott Hollums
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Patent number: 9014048Abstract: A method and system for dynamic bandwidth re-allocation is provided. The method includes the steps of monitoring a video streams delivered by a server to a first client and a second client that have a same service level agreement and determining whether the first client is receiving a lower bitrate video stream compared to the second client. The method further includes the step of adjusting a parameter to allow the first client to receive a higher bitrate video stream. In an example, the monitoring, determining and adjusting steps are performed by a cable modem termination system (CMTS). In another example, the monitoring, determining and adjusting steps are performed by an optical line terminal (OLT).Type: GrantFiled: June 29, 2012Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventor: Niki Pantelias
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Patent number: 8804607Abstract: A central entity and/or a remote device in a communication system are designed to address the problem of maintaining upstream synchronization in the remote device after loss of the downstream signal. One issue of particular importance is maintaining upstream transmissions from the remote device in an S-CDMA (or perhaps S-TDMA) mode that do not degrade performance of the communication system via poor upstream timing or a need for re-ranging. By providing novel functionality at the central entity for synchronizing first and second downstream signals and/or by providing novel functionality at the remote device for determining a symbol clock offset between a first terminated downstream signal and a second re-acquired downstream signal, embodiments of the present invention facilitate maintenance of synchronization through the loss of the downstream signal, thereby minimizing the need for re-ranging and avoiding poorly timed upstream bursts.Type: GrantFiled: May 1, 2013Date of Patent: August 12, 2014Assignee: Broadcom CorporationInventors: Thomas Kolze, Bruce Currivan, Niki Pantelias
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Patent number: 8743933Abstract: Embodiments provide solutions to reduce power utilization (either at individual cable modems or in the overall network) in future cable modem networks. Particularly, embodiments seek to reduce power utilization at individual cable modems and in the overall network, by allocating upstream frequency bands and/or transmission modulation schemes among cable modems while accounting for cable loss experienced by individual upstream cable modem transmissions. According to embodiments, frequency spectrum and modulation scheme allocation techniques are provided to optimize power utilization and enable lower upstream transmission power by cable modems while maintaining similar signal strength of received signals or lower signal strength with reduced SNR requirements using lower capacity modulation at the headend.Type: GrantFiled: December 30, 2011Date of Patent: June 3, 2014Assignee: Broadcom CorporationInventors: Richard Prodan, Niki Pantelias, Thomas Kolze
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Publication number: 20140079102Abstract: Embodiments include systems and methods for enabling a physical layer (PHY) link signaling channel between a network termination modem and a cable modem in a cable network. The PHY link signaling channel is embedded within the same multi-carrier channel as the data and enables PHY link up between the network termination modem and cable modem without involvement of higher layers (e.g., MAC). The PHY link signaling channel can be implemented in the downstream (from the network termination modem to the cable modem(s)) or in the upstream from a cable modem to the network termination modem. Embodiments are applicable to any known cable network, and particularly to cable networks implementing the DOCSiS and EPoC standards.Type: ApplicationFiled: September 17, 2013Publication date: March 20, 2014Inventors: Avi KLIGER, Yitshak Ohana, Niki Pantelias, Leo Montreuil, Jonathan S. Min, Edward Boyd, Mark Laubach, Victor Hou
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Patent number: 8593966Abstract: A method for dropping lower priority packets for transmission over a wireless communication medium is provided. A central device receives one or more packets to be transferred to one or more data providers, each packet having a priority. Then, based on the priority, a media access controller stores each of the packets in one or more priority queues in a fixed shared memory space in such a way as to maintain the order in which the packets were received in each of the priority queues. The media access controller monitors the number of packets in each of the priority queues and signals an interrupt when a packet threshold is exceeded in one or more of the priority queues. The media access controller then drops lower priority packets in the fixed shared memory space based on the order received to guarantee that there is enough memory to store higher priority packets in the fixed shared memory space.Type: GrantFiled: January 31, 2011Date of Patent: November 26, 2013Assignee: Broadcom CorporationInventors: Shane Lansing, Niki Pantelias, Young Vu, Francisco J. Gomez
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Publication number: 20130243136Abstract: A central entity and/or a remote device in a communication system are designed to address the problem of maintaining upstream synchronization in the remote device after loss of the downstream signal. One issue of particular importance is maintaining upstream transmissions from the remote device in an S-CDMA (or perhaps S-TDMA) mode that do not degrade performance of the communication system via poor upstream timing or a need for re-ranging. By providing novel functionality at the central entity for synchronizing first and second downstream signals and/or by providing novel functionality at the remote device for determining a symbol clock offset between a first terminated downstream signal and a second re-acquired downstream signal, embodiments of the present invention facilitate maintenance of synchronization through the loss of the downstream signal, thereby minimizing the need for re-ranging and avoiding poorly timed upstream bursts.Type: ApplicationFiled: May 1, 2013Publication date: September 19, 2013Applicant: Broadcom CorporationInventors: Thomas KOLZE, Bruce Currivan, Niki Pantelias