Patents by Inventor Lisa Denney

Lisa Denney 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: 9386095
    Abstract: A method in a cable modern (CM) to adjust its timing offset when waking up prior to the termination of its sleep cycle is provided. The method includes the step of receiving a service identifier (SID) for a multicast maintenance region, receiving a message from a cable modem termination system (CMTS) to enter a sleep cycle, waking up from the sleep cycle before the end of the sleep cycle in response to an event, and sending a message to the cable modem termination system (CMTS) to adjust the CM's timing offset during the multicast maintenance region.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: July 5, 2016
    Assignee: Broadcom Corporation
    Inventor: Lisa Denney
  • 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: 20140321463
    Abstract: A method in a cable modern (CM) to adjust its timing offset when waking up prior to the termination of its sleep cycle is provided. The method includes the step of receiving a service identifier (SID) for a multicast maintenance region, receiving a message from a cable modem termination system (CMTS) to enter a sleep cycle, waking up from the sleep cycle before the end of the sleep cycle in response to an event, and sending a message to the cable modem termination system (CMTS) to adjust the CM's timing offset during the multicast maintenance region.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 30, 2014
    Applicant: Broadcom Corporation
    Inventor: Lisa DENNEY
  • 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: 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: 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: 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: 7613167
    Abstract: A traffic prioritization system performs a coarse classification of upstream bursts at the physical interface of a headend communications device. The headend device monitors and controls communications with a plurality of remote 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: September 27, 2001
    Date of Patent: November 3, 2009
    Assignee: Broadcom Corporation
    Inventors: Lisa Denney, Gale Shallow, Niki Pantelias, John Horton
  • Patent number: 7426744
    Abstract: A supervisory communications device, such as a headend device within a cable communications network, monitors and controls communications with a plurality of remote communications devices, such as cable modems, throughout a widely distributed network. The supervisory device allocates bandwidth on the upstream channels by sending MAP messages over its downstream channel. A master-slave interface permits a second supervisory device to be connected to increase the number of available upstream channels. When one device operates as the slave device to the other, the slave device is programmable to select MAP messages from either of the master device or the slave device. A primary filter and a slave filter are provided to specify which downstream channel(s) has the authority to issue MAP messages for each available upstream channel. The filters utilizes registers to authenticate the source of the MAP messages.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: September 16, 2008
    Assignee: Broadcom Corporation
    Inventors: Lisa Denney, Gerald Grand, Yushan Lu
  • Patent number: 7379472
    Abstract: A system and method is presented to utilize hardware instead of software to compare for bandwidth request changes between two consecutively received unsolicited grant service (UGS) extended headers for the same service identifier (SID), obtains significant savings in CPU cycles for the CMTS software. The system determines whether adequate bandwidth is being provided from a cable modem termination system to a data provider during a unsolicited grant service flow. The system includes a means for receiving a current voice packet in the unsolicited grant service flow at the cable modem termination system from the data provider, where the current voice packet comprises a unsolicited grant service extended header. The system further includes means for comparing the current unsolicited grant service extended header with a previous unsolicited grant service extended header.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: May 27, 2008
    Assignee: Broadcom Corporation
    Inventors: Niki Pantelias, Kenneth G Zaleski, II, Gale Shallow, Lisa Denney
  • Publication number: 20080046952
    Abstract: A supervisory communications device, such as a headend device within a communications network, monitors and controls communications with a plurality of remote communications devices throughout a widely distributed network. The supervisory device allocates bandwidth on the upstream channels by sending MAP messages over its downstream channel. A highly integrated media access controller integrated circuit (MAC IC) operates within the headend to provide lower level processing on signals exchanged with the remote devices. The enhanced functionality of the MAC IC relieves the processing burden on the headend CPU and increases packet throughput.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 21, 2008
    Applicant: Broadcom Corporation
    Inventors: Lisa Denney, Hooman Moshar, John Horton, Shane Lansing, Sean Nazareth, Niki Pantelias
  • Publication number: 20080037556
    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: Application
    Filed: August 17, 2007
    Publication date: February 14, 2008
    Applicant: Broadcom Corporation
    Inventors: Lisa Denney, Gale Shallow, Niki Pantelias, John Horton
  • Publication number: 20080020797
    Abstract: Upstream requests such a bandwidth requests, are processed by CMTS out of order on a priority basis to reduce latency in responding to the request. Specifically, a cable modem termination system (CMTS) is connected to a plurality of cable modems by a cable plant. The CMTS has a burst receiver adapted to be connected to the cable plant to process upstream data packet units and bandwidth requests transmitted by the cable modems. Each packet includes a header that uniquely distinguishes the bandwidth requests from other data types. Packet data units are arranged in a first memory queue. Bandwidth requests are arranged in a second memory queue. The headers of the packets processed by the burst receiver are inspected as they arrive at the CMTS to determine if the packets are packet data units or bandwidth requests. Packet data units are routed to the first memory queue. Bandwidth requests are routed to the second memory queue.
    Type: Application
    Filed: August 7, 2007
    Publication date: January 24, 2008
    Applicant: Broadcom Corporation
    Inventors: Lisa DENNEY, Anders Hebsgaard, Robert Lee
  • Publication number: 20070261086
    Abstract: A method of receiving information from one or more wireless uplink channels is provided. The method includes receiving information at a media access controller (MAC) from a first set of one or more wireless uplink channels in response to bandwidth allocation map (MAP) messages sent from the MAC and receiving information at the MAC from a second set of one or more wireless uplink channels in response to MAP messages sent by another MAC.
    Type: Application
    Filed: July 11, 2007
    Publication date: November 8, 2007
    Applicant: Broadcom Corporation
    Inventors: Lisa Denney, Gerald Grand, Yushan Lu
  • Publication number: 20070261087
    Abstract: A media access controller (MAC) configurable for first and second modes of operation is provided. The MAC includes an uplink processor coupled to a plurality of uplink channels, a downlink processor coupled to a downlink, and a MAP parser coupled to the downlink processor. The downlink processor is configured to provide information to the downlink channel, including bandwidth allocation map (“MAP”) messages. Each MAP message is associated with one of the plurality of uplink channels or an uplink channel associated with one or more other MACs. The MAP parser is configured to control the MAC to receive information from a first set of one or more of the plurality of uplink channels in first mode and from a second set of one or more of the plurality of uplink channels in second mode.
    Type: Application
    Filed: July 11, 2007
    Publication date: November 8, 2007
    Applicant: Broadcom Corporation
    Inventors: Lisa Denney, Gerald Grand, Yushan Lu
  • Publication number: 20070195817
    Abstract: A method for increasing upstream bandwidth per cable modem user in a cable communications system that includes a cable modem termination system (CMTS) and a plurality of cable modems is provided. The method permits a cable modem to transmit data to the CMTS on multiple upstream channels simultaneously using a technique called “channel bonding.” Bandwidth allocation is achieved by transmitting from a CMTS to a cable modem a unique bandwidth allocation message for each upstream channel in a bonded group of upstream channels, wherein the combination of unique bandwidth allocation messages collectively allocates requested bandwidth across the bonded group.
    Type: Application
    Filed: March 21, 2006
    Publication date: August 23, 2007
    Applicant: Broadcom Corporation
    Inventors: Lisa Denney, Niki Pantelias, A. Hollums, Victor Hou, John Horton, David Pullen
  • Publication number: 20070140209
    Abstract: A plurality of base station devices are linked together and synchronized to facilitate communication between the respective base station devices and respective downlink subscriber stations. According to one embodiment of the invention, one of the base station devices is designated as a master device, and the other base station devices are designated as slave devices. The respective base station devices are connected to each other by means of a synchronization bus. The master base station device then generates and broadcasts a future time stamp value, which is received by the respective slave base station devices. When the time stamp counter in the master base station device reaches the transmitted value, a control signal is broadcast over the synchronization bus. The slave base station devices then retrieve the time stamp value and reset their respective local time stamp counters to the received value. In this manner, the base station devices are synchronized.
    Type: Application
    Filed: February 2, 2007
    Publication date: June 21, 2007
    Applicant: Broadcom Corporation
    Inventors: Anders Hebsgaard, David Dworkin, Lisa Denney, Robert Lee, Thomas Quigley
  • Publication number: 20070109995
    Abstract: A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.
    Type: Application
    Filed: October 23, 2006
    Publication date: May 17, 2007
    Applicant: Broadcom Corporation
    Inventors: Thomas Quigley, Jonathan Min, Lisa Denney, Henry Samueli, Sean Nazareth, Feng Chen, Fang Lu, Christopher Jones
  • Publication number: 20070086484
    Abstract: A number of features for enhancing the performance of a wireless communication system, in which data is transmitted between a central node and a plurality of subscriber nodes located remotely with respect to the central node, are presented. The power transmission level, slot timing, and equalization of the subscriber nodes are set by a ranging process. Data is transmitted by the subscriber nodes in fragmented form. Various measures are taken to make transmission from the subscriber nodes robust. The uplink data transmission is controlled to permit multiple access from the subscriber nodes.
    Type: Application
    Filed: October 11, 2006
    Publication date: April 19, 2007
    Applicant: Broadcom Corporation
    Inventors: Thomas Quigley, Jonathan Min, Lisa Denney, Henry Samueli, Sean Nazareth, Feng Chen, Fang Lu, Christopher Jones
  • Publication number: 20070036176
    Abstract: A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.
    Type: Application
    Filed: October 23, 2006
    Publication date: February 15, 2007
    Applicant: Broadcom Corporation
    Inventors: Thomas Quigley, Jonathan Min, Lisa Denney, Henry Samueli, Sean Nazareth, Feng Chen, Fang Lu, Christopher Jones