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).

  • Patent number: 9722764
    Abstract: 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: Grant
    Filed: April 15, 2014
    Date of Patent: August 1, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Richard Prodan, Niki Pantelias, Thomas Kolze
  • Patent number: 9479621
    Abstract: 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: Grant
    Filed: August 19, 2015
    Date of Patent: October 25, 2016
    Assignee: Broadcom Corporation
    Inventors: Avi Kliger, Yitshak Ohana, Niki Pantelias, Leo Montreuil, Jonathan S. Min, Edward Boyd, Mark Laubach, Victor Hou
  • Patent number: 9450692
    Abstract: 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: Grant
    Filed: May 28, 2015
    Date of Patent: September 20, 2016
    Assignee: Broadcom Corporation
    Inventor: Niki Pantelias
  • Publication number: 20160218851
    Abstract: 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: Application
    Filed: April 15, 2014
    Publication date: July 28, 2016
    Applicant: Broadcom Corporation
    Inventors: Richard PRODAN, Niki Pantelias, Thomas Kolze
  • Patent number: 9281957
    Abstract: 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: Grant
    Filed: May 7, 2012
    Date of Patent: March 8, 2016
    Assignee: Broadcom Corporation
    Inventor: Niki Pantelias
  • Patent number: 9237030
    Abstract: 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: Grant
    Filed: August 20, 2012
    Date of Patent: January 12, 2016
    Assignee: Broadcom Corporation
    Inventors: Niki Pantelias, Lisa Denney, Edward Boyd, Andres Alvarez, Scott Hollums
  • Publication number: 20150358437
    Abstract: 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: Application
    Filed: August 19, 2015
    Publication date: December 10, 2015
    Applicant: Broadcom Corporation
    Inventors: Avi KLIGER, Yitshak Ohana, Niki Pantelias, Leo Montreuil, Jonathan S. Min, Edward Boyd, Mark Laubach, Victor Hou
  • Publication number: 20150263817
    Abstract: 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: Application
    Filed: May 28, 2015
    Publication date: September 17, 2015
    Applicant: Broadcom Corporation
    Inventor: Niki PANTELIAS
  • Patent number: 9118444
    Abstract: 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: Grant
    Filed: September 17, 2013
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Avi Kliger, Yitshak Ohana, Niki Pantelias, Leo Montreuil, Jonathan S. Min, Edward Boyd, Mark Laubach, Victor Hou
  • Patent number: 9055483
    Abstract: 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: Grant
    Filed: June 29, 2012
    Date of Patent: June 9, 2015
    Assignee: Broadcom Corporation
    Inventor: Niki Pantelias
  • Patent number: 9049399
    Abstract: 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: Grant
    Filed: January 11, 2013
    Date of Patent: June 2, 2015
    Assignee: Broadcom Corporation
    Inventors: Joel I. Danzig, Richard S. Prodan, Niki Pantelias, Thomas Kolze, Victor T. Hou, Taruna Tjahjadi
  • Patent number: 9020014
    Abstract: 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: Grant
    Filed: December 30, 2011
    Date of Patent: April 28, 2015
    Assignee: Broadcom Corporation
    Inventors: Niki Pantelias, Scott Hollums
  • Patent number: 9014048
    Abstract: 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: Grant
    Filed: June 29, 2012
    Date of Patent: April 21, 2015
    Assignee: Broadcom Corporation
    Inventor: Niki Pantelias
  • Patent number: 8804607
    Abstract: 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: Grant
    Filed: May 1, 2013
    Date of Patent: August 12, 2014
    Assignee: Broadcom Corporation
    Inventors: Thomas Kolze, Bruce Currivan, Niki Pantelias
  • Patent number: 8743933
    Abstract: 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: Grant
    Filed: December 30, 2011
    Date of Patent: June 3, 2014
    Assignee: Broadcom Corporation
    Inventors: Richard Prodan, Niki Pantelias, Thomas Kolze
  • Publication number: 20140079102
    Abstract: 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: Application
    Filed: September 17, 2013
    Publication date: March 20, 2014
    Inventors: Avi KLIGER, Yitshak Ohana, Niki Pantelias, Leo Montreuil, Jonathan S. Min, Edward Boyd, Mark Laubach, Victor Hou
  • Patent number: 8593966
    Abstract: 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: Grant
    Filed: January 31, 2011
    Date of Patent: November 26, 2013
    Assignee: Broadcom Corporation
    Inventors: Shane Lansing, Niki Pantelias, Young Vu, Francisco J. Gomez
  • Publication number: 20130243136
    Abstract: 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: Application
    Filed: May 1, 2013
    Publication date: September 19, 2013
    Applicant: Broadcom Corporation
    Inventors: Thomas KOLZE, Bruce Currivan, Niki Pantelias
  • Publication number: 20130170528
    Abstract: 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: Application
    Filed: December 30, 2011
    Publication date: July 4, 2013
    Applicant: Broadcom Corporation
    Inventors: Niki Pantelias, Scott Hollums
  • Patent number: 8457040
    Abstract: 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: Grant
    Filed: March 26, 2004
    Date of Patent: June 4, 2013
    Assignee: Broadcom Corporation
    Inventors: Thomas Kolze, Bruce Currivan, Niki Pantelias