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).

  • Publication number: 20130051443
    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: Application
    Filed: August 20, 2012
    Publication date: February 28, 2013
    Applicant: Broadcom Corporation
    Inventors: Niki PANTELIAS, Lisa DENNEY, Edward BOYD, Andres ALVAREZ, Scott HOLLUMS
  • Publication number: 20130051276
    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: Application
    Filed: June 29, 2012
    Publication date: February 28, 2013
    Applicant: Broadcom Corporation
    Inventor: Niki PANTELIAS
  • Publication number: 20130044766
    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: June 29, 2012
    Publication date: February 21, 2013
    Applicant: Broadcom Corporation
    Inventor: Niki PANTELIAS
  • Patent number: 8369433
    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 7, 2011
    Date of Patent: February 5, 2013
    Assignee: Broadcom Corporation
    Inventors: Joel I. Danzig, Richard S. Prodan, Niki Pantelias, Thomas Kolze, Victor T. Hou, Taruna Tjahjadi
  • Publication number: 20120269242
    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: December 30, 2011
    Publication date: October 25, 2012
    Inventors: Richard PRODAN, Niki Pantelias, Thomas Kolze
  • Publication number: 20120218995
    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: Application
    Filed: May 7, 2012
    Publication date: August 30, 2012
    Applicant: Broadcom Corporation
    Inventor: Niki PANTELIAS
  • Patent number: 8204074
    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 PITY devices depending on configured PHY capacity. Upstream service flows are kept 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: June 7, 2007
    Date of Patent: June 19, 2012
    Assignee: Broadcom Corporation
    Inventor: Niki Pantelias
  • Publication number: 20110286330
    Abstract: A system and method is presented that uses hardware at a central node to determine if bandwidth being provided to a remote node in accordance with an unsolicited grant service (UGS) flow requires adjustment. In one embodiment, the hardware performs this function by comparing information in two consecutively-received UGS extended headers from the same remote device. If the information in the current and previous UGS extended headers differ, then an indication is provided to software of the central node that the bandwidth being provided to the remote node requires adjustment.
    Type: Application
    Filed: November 22, 2010
    Publication date: November 24, 2011
    Applicant: Broadcom Corporation
    Inventors: Niki Pantelias, Kenneth G. Zaleski, II, Gale Shallow, Lisa Denney
  • Patent number: 7990952
    Abstract: A traffic prioritization system and method performs a coarse classification of upstream bursts at the physical interface of a wireless communications device. The wireless device monitors and controls communications with a plurality of remote wireless communications devices throughout a widely distributed network, including the Internet. The traffic prioritization system includes a burst receiver that receives and sends the upstream bursts to a classifier. At an appropriate time, the classifier receives the upstream bursts and queries a priority lookup table (LUT) to determine a priority classification. The priority classification is used to separate the bursts into two or more priority levels. The higher priority level is used to designate services having a low tolerance for delay, such as telephony. Upon classification, the upstream bursts are forwarded to one of several priority queues. Each priority queue corresponds to at least one priority level.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: August 2, 2011
    Assignee: Broadcom Corporation
    Inventors: Lisa V. Denney, Gale Shallow, Niki Pantelias, John Horton
  • Publication number: 20110170632
    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: Application
    Filed: January 7, 2011
    Publication date: July 14, 2011
    Applicant: Broadcom Corporation
    Inventors: Joel I. Danzig, Richard S. Prodan, Niki Pantelias, Thomas Kolze, Victor T. Hou, Taruna Tjahjadi
  • Publication number: 20110141957
    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: Application
    Filed: January 31, 2011
    Publication date: June 16, 2011
    Applicant: Broadcom Corporation
    Inventors: Shane Lansing, Niki Pantelias, Young Vu, Francisco J. Gomez
  • Patent number: 7957392
    Abstract: A method, system, and computer program product for receiving and resequencing a plurality of data segments received on a plurality of channels of a bonding channel set, comprising deter mining if a sequence number of a received segment matches an expected sequence number. If so, the process includes forwarding the segment for further processing, incrementing the expected sequence number; and forwarding any queued packets corresponding to the expected sequence number and immediately succeeding sequence numbers less than a sequence number of annexed missing segment. If the sequence number of the received segment does not match the expected sequence number, the received segment is queued at a memory location. The address of this location is converted to a segment index. The segment index is stored in a sparse array.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: June 7, 2011
    Assignee: Broadcom Corporation
    Inventors: David Pullen, Niki Pantelias, Dannie Gay
  • Patent number: 7881202
    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: August 17, 2007
    Date of Patent: February 1, 2011
    Assignee: Broadcom Corporation
    Inventors: Shane Lansing, Niki Pantelias, Young Vu, Francisco J. Gomez
  • Patent number: 7869456
    Abstract: A system and method is presented that uses hardware at a central node to determine if bandwidth being provided to a remote node in accordance with an unsolicited grant service (UGS) flow requires adjustment. In one embodiment, the hardware performs this function by comparing information in two consecutively-received UGS extended headers from the same remote device. If the information in the current and previous UGS extended headers differ, then an indication is provided to software of the central node that the bandwidth being provided to the remote node requires adjustment.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: January 11, 2011
    Assignee: Broadcom Corporation
    Inventors: Niki Pantelias, Kenneth G. Zaleski, II, Gale Shallow, Lisa Denney
  • Patent number: 7852870
    Abstract: A supervisory communications device, such as a base station within a wireless network, monitors and controls communications with a plurality of remote communications devices, such as mobile nodes, throughout a widely distributed network, including the Internet. The supervisory device establishes the upstream slot structure and allocates upstream bandwidth by sending messages over its downstream channel. The supervisory device also uses the messages and minislot counts to anticipate bursts from the remote devices. Dual registers are provided within the supervisory device to generate minislot counts. A primary register generates minislot counts for a current slot structure, and a secondary register generates minislot counts for a revised slot structure. Software executed on the supervisory device determines a switchover time for changing to the revised slot structure and revised minislot count.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: December 14, 2010
    Assignee: Broadcom Corporation
    Inventors: David Roger Dworkin, Niki Pantelias, Son Dinh Nguyen, Yushan Lu
  • Patent number: 7852871
    Abstract: A supervisory communications device, such as a base station within a wireless network, monitors and controls communications with a plurality of remote communications devices, such as mobile nodes, throughout a widely distributed network, including the Internet. The supervisory device establishes the upstream slot structure and allocates upstream bandwidth by sending messages over its downstream channel. The supervisory device also uses the messages and minislot counts to anticipate bursts from the remote devices. Dual registers are provided within the supervisory device to generate minislot counts. A primary register generates minislot counts for a current slot structure, and a secondary register generates minislot counts for a revised slot structure. Software executed on the supervisory device determines a switchover time for changing to the revised slot structure and revised minislot count.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: December 14, 2010
    Assignee: Broadcom Corporation
    Inventors: David Roger Dworkin, Niki Pantelias, Son Dinh Nguyen, Yushan Lu
  • Patent number: 7843955
    Abstract: A system and method is presented that uses hardware at a central node to determine if bandwidth being provided to a remote node in accordance with an unsolicited grant service (UGS) flow requires adjustment. In one embodiment, the hardware performs this function by comparing information in two consecutively-received UGS extended headers from the same remote device. If the information in the current and previous UGS extended headers differ, then an indication is provided to software of the central node that the bandwidth being provided to the remote node requires adjustment.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: November 30, 2010
    Assignee: Broadcom Corporation
    Inventors: Niki Pantelias, Kenneth G. Zaleski, II, Gale Shallow, Lisa Denney
  • Patent number: 7839785
    Abstract: A method and system for dropping lower priority packets for transmission over a communication medium is provided. A cable modem termination system 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: September 25, 2002
    Date of Patent: November 23, 2010
    Assignee: Broadcom Corporation
    Inventors: Shane Lansing, Niki Pantelias, Young Vu, Francisco J Gomez
  • Publication number: 20100265954
    Abstract: A method, system, and computer program product for receiving and resequencing a plurality of data segments received on a plurality of channels of a bonding channel set, comprising deter mining if a sequence number of a received segment matches an expected sequence number. If so, the process includes forwarding the segment for further processing, incrementing the expected sequence number; and forwarding any queued packets corresponding to the expected sequence number and immediately succeeding sequence numbers less than a sequence number of annexed missing segment. If the sequence number of the received segment does not match the expected sequence number, the received segment is queued at a memory location. The address of this location is converted to a segment index. The segment index is stored in a sparse array.
    Type: Application
    Filed: July 2, 2010
    Publication date: October 21, 2010
    Applicant: Broadcom Corporation
    Inventors: David PULLEN, Niki Pantelias, Dannie Gay
  • Patent number: 7751404
    Abstract: A method, system, and computer program product for receiving and resequencing a plurality of data segments received on a plurality of channels of a bonding channel set, comprising determining if a sequence number of a received segment matches an expected sequence number. If so, the process includes forwarding the segment for further processing, incrementing the expected sequence number; and forwarding any queued packets corresponding to the expected sequence number and immediately succeeding sequence numbers less than a sequence number of annexed missing segment. If the sequence number of the received segment does not match the expected sequence number, the received segment is queued at a memory location. The address of this location is converted to a segment index. The segment index is stored in a sparse array.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: July 6, 2010
    Assignee: Broadcom Corporation
    Inventors: David Michael Pullen, Niki Pantelias, Dannie Gay