Patents by Inventor Albert L. Garrett

Albert L. Garrett 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: 9998402
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: aggregating packets, including at least control packets and acknowledgement packets, with other packets.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: June 12, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
  • Patent number: 9742620
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: designating a selected MoCA device as a network controller; and logically partitioning, into virtual MoCA networks, a predetermined bandwidth reserved for the MoCA network by sending, from the network controller one or more beacons containing virtual network information.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: August 22, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Albert L. Garrett, Jeffrey Scott Ford, Jack Thomas Matheney
  • Patent number: 9106435
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: dedicating a portion of a MAP cycle prior to a MAP packet to reservation requests and small data packets; and dedicating a portion of the MAP cycle after the MAP packet to data traffic.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: August 11, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
  • Publication number: 20140348175
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: aggregating packets, including at least control packets and acknowledgement packets, with other packets.
    Type: Application
    Filed: August 12, 2014
    Publication date: November 27, 2014
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
  • Patent number: 8804516
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: aggregating packets, including at least control packets and acknowledgement packets, with other packets.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: August 12, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
  • Publication number: 20130283348
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: designating a selected MoCA device as a network controller; and logically partitioning, into virtual MoCA networks, a predetermined bandwidth reserved for the MoCA network by sending, from the network controller one or more beacons containing virtual network information.
    Type: Application
    Filed: June 18, 2013
    Publication date: October 24, 2013
    Inventors: Albert L. Garrett, Jeffrey Scott Ford, Jack Thomas Matheney
  • Patent number: 8547833
    Abstract: A method can include calculating an indication of signal quality for a communications channel based on a message from a node over a communications channel of a network. The calculated indication of signal quality can be adjusted based on a prior indication of signal quality to provide an adjusted indication of signal quality. Bitloading for the communications channel can be determined based on the adjusted indication of signal quality.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: October 1, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Albert L. Garrett, Jack Thomas Matheney
  • Patent number: 8468223
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: designating a selected MoCA device as a network controller; and logically partitioning, into virtual MoCA networks, a predetermined bandwidth reserved for the MoCA network by sending, from the network controller one or more beacons containing virtual network information.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: June 18, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Albert L. Garrett, Jeffrey Scott Ford, Jack Thomas Matheney
  • Publication number: 20120287979
    Abstract: A method can include calculating an indication of signal quality for a communications channel based on a message from a node over a communications channel of a network. The calculated indication of signal quality can be adjusted based on a prior indication of signal quality to provide an adjusted indication of signal quality. Bitloading for the communications channel can be determined based on the adjusted indication of signal quality.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 15, 2012
    Inventors: ALBERT L. GARRETT, JACK THOMAS MATHENEY
  • Publication number: 20100142540
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: dedicating a portion of a MAP cycle prior to a MAP packet to reservation requests and small data packets; and dedicating a portion of the MAP cycle after the MAP packet to data traffic.
    Type: Application
    Filed: November 11, 2009
    Publication date: June 10, 2010
    Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
  • Publication number: 20100142378
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: aggregating packets, including at least control packets and acknowledgement packets, with other packets.
    Type: Application
    Filed: November 11, 2009
    Publication date: June 10, 2010
    Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
  • Publication number: 20100146616
    Abstract: Embodiments may be disclosed herein that provide systems, devices, and methods of operating a Multimedia over Coax (MoCA) network. One such embodiment is a method comprising: designating a selected MoCA device as a network controller; and logically partitioning, into virtual MoCA networks, a predetermined bandwidth reserved for the MoCA network by sending, from the network controller one or more beacons containing virtual network information.
    Type: Application
    Filed: November 11, 2009
    Publication date: June 10, 2010
    Inventors: Albert L. Garrett, Jeffrey Scott Ford, Jack Thomas Matheney
  • Patent number: 7272109
    Abstract: A 10 MHz channelized orthogonal frequency division multiplexing (OFDM) transmitter is provided that communicates using a modified OFDM packet structure with a half-rate oscillator having standard accuracy. The transmitter has an inverse fast fourier transform (IFFT) data processor that appends an outer pair of data subcarriers on either end of an OFDM subcarrier profile. An IFFT long sync processor appends an outer pair of binary phase shift key (BPSK) subcarriers on either end of an OFDM long sync subcarrier profile. By copying or appending the information of the data subcarriers closest to zero Hz. to more robust locations, 10 MHz channelized OFDM can be achieved with half-rate clocks and 20 PPM oscillators.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: September 18, 2007
    Assignee: Conexant Systems, Inc.
    Inventors: Mark A. Webster, Albert L. Garrett, Steven D. Halford, Michael J. Seals
  • Patent number: 7174138
    Abstract: A power-based hardware antenna diversity method for a wireless transceiver with multiple antennas is disclosed. The method is characterized in the steps of setting the transceiver gain at a maximum level to establish a first story of dynamic power range above a noise floor level, using a high-resolution ADC at a large back-off level relative to the noise floor to detect weak signals within the first story of the dynamic power range, switching antennas and measuring power level for each antenna during signal onset, and selecting an antenna having a largest power level.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: February 6, 2007
    Assignee: Conexant Systems, Inc.
    Inventors: Mark A. Webster, Albert L. Garrett, Steven D. Halford
  • Patent number: 6973296
    Abstract: A wireless receiver including a receive chain, a synchronization processor, a memory, a combiner and a soft decision processor. The synchronization processor determines a frequency response of the wireless channel using synchronization data transmitted in the wireless channel. The memory stores a compensation vector indicative of a frequency response of receive chain filtering. The combiner combines the compensation vector with the wireless channel frequency response to provide a compensated frequency response. The soft decision processor uses the compensated frequency response to evaluate data decisions. The compensation vector is based on measurement or estimation of the frequency response of the receive chain. The combiner may be based on multiplication or addition. The wireless receiver may include an FEQ. The synchronization processor generates FEQ coefficients for programming the FEQ taps.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: December 6, 2005
    Assignee: Intersil Americas Inc.
    Inventors: Mark A. Webster, Paul J. Chiuchiolo, Albert L. Garrett
  • Patent number: 6748200
    Abstract: A system and method for controlling amplification of a signal received by a ZIF radio having a power level within a full power range relative to a minimum noise floor. The ZIF radio includes a ZIF receiver front end, an overload detector, an ADC, a saturation detector, a DC and power estimator, and control logic. The control logic utilized full visibility of the ADC to limit gain of the baseband amplifier to a maximum gain setting sufficient to view the minimum noise floor and to view a received signal having a power level within any of several segments of the power spectrum. The segmentation of the power spectrum is based on an overload condition of the ZIF receiver front end and a saturation condition of the ADC. The control logic further employs limited gain stepping of the baseband amplifier to avoid exceeding a DC budget of the ADC.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: June 8, 2004
    Inventors: Mark A. Webster, Alex C. Yeh, Albert L. Garrett
  • Patent number: 6724834
    Abstract: A threshold detector for detecting synchronization signals at correlator output during packet acquisition. An RF receiver converts RF signals into baseband signals. A matched filter correlator correlates samples of the baseband signals with predetermined synchronization signals, such as long sync symbols, and provides corresponding correlation samples. A long-term integrator integrates a first predetermined number of the correlation samples to provide a long term moving average and a short term integrator integrates a second predetermined number of the correlation samples to provide a short term moving average signal. The short term moving average signal is based on channel delay spread and the long term moving average tracks channel noise. A multiplier multiplies the long term moving average signal by a scale factor to generate a dynamic threshold. A detector detects a crossover between the short term moving average and the dynamic threshold to estimate timing of received synchronization signals.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: April 20, 2004
    Inventors: Albert L. Garrett, Keith R. Baldwin
  • Publication number: 20030161428
    Abstract: A threshold detector for detecting synchronization signals at correlator output during packet acquisition. An RF receiver converts RF signals into baseband signals. A matched filter correlator correlates samples of the baseband signals with predetermined synchronization signals, such as long sync symbols, and provides corresponding correlation samples. A long-term integrator integrates a first predetermined number of the correlation samples to provide a long term moving average and a short term integrator integrates a second predetermined number of the correlation samples to provide a short term moving average signal. The short term moving average signal is based on channel delay spread and the long term moving average tracks channel noise. A multiplier multiplies the long term moving average signal by a scale factor to generate a dynamic threshold. A detector detects a crossover between the short term moving average and the dynamic threshold to estimate timing of received synchronization signals.
    Type: Application
    Filed: February 22, 2002
    Publication date: August 28, 2003
    Inventors: Albert L. Garrett, Keith R. Baldwin
  • Publication number: 20030104797
    Abstract: A wireless receiver including a receive chain, a synchronization processor, a memory, a combiner and a soft decision processor. The synchronization processor determines a frequency response of the wireless channel using synchronization data transmitted in the wireless channel. The memory stores a compensation vector indicative of a frequency response of receive chain filtering. The combiner combines the compensation vector with the wireless channel frequency response to provide a compensated frequency response. The soft decision processor uses the compensated frequency response to evaluate data decisions. The compensation vector is based on measurement or estimation of the frequency response of the receive chain. The combiner may be based on multiplication or addition. The wireless receiver may include an FEQ. The synchronization processor generates FEQ coefficients for programming the FEQ taps.
    Type: Application
    Filed: December 4, 2001
    Publication date: June 5, 2003
    Inventors: Mark A. Webster, Paul J. Chiuchiolo, Albert L. Garrett
  • Patent number: RE43367
    Abstract: A power-based hardware antenna diversity method for a wireless transceiver with multiple antennas is disclosed. The method is characterized in the steps of setting the transceiver gain at a maximum level to establish a first story of dynamic power range above a noise floor level, using a high-resolution ADC at a large back-off level relative to the noise floor to detect weak signals within the first story of the dynamic power range, switching antennas and measuring power level for each antenna during signal onset, and selecting an antenna having a largest power level.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: May 8, 2012
    Assignee: Intellectual Ventures I LLC
    Inventors: Mark A. Webster, Albert L. Garrett, Steven D. Halford