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).
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Patent number: 9998402Abstract: 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: GrantFiled: August 12, 2014Date of Patent: June 12, 2018Assignee: Cisco Technology, Inc.Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
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Patent number: 9742620Abstract: 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: GrantFiled: June 18, 2013Date of Patent: August 22, 2017Assignee: Cisco Technology, Inc.Inventors: Albert L. Garrett, Jeffrey Scott Ford, Jack Thomas Matheney
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Patent number: 9106435Abstract: 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: GrantFiled: November 11, 2009Date of Patent: August 11, 2015Assignee: Cisco Technology, Inc.Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
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Publication number: 20140348175Abstract: 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: ApplicationFiled: August 12, 2014Publication date: November 27, 2014Applicant: CISCO TECHNOLOGY, INC.Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
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Patent number: 8804516Abstract: 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: GrantFiled: November 11, 2009Date of Patent: August 12, 2014Assignee: Cisco Technology, Inc.Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
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Publication number: 20130283348Abstract: 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: ApplicationFiled: June 18, 2013Publication date: October 24, 2013Inventors: Albert L. Garrett, Jeffrey Scott Ford, Jack Thomas Matheney
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Patent number: 8547833Abstract: 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: GrantFiled: May 13, 2011Date of Patent: October 1, 2013Assignee: Cisco Technology, Inc.Inventors: Albert L. Garrett, Jack Thomas Matheney
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Patent number: 8468223Abstract: 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: GrantFiled: November 11, 2009Date of Patent: June 18, 2013Assignee: Cisco Technology, Inc.Inventors: Albert L. Garrett, Jeffrey Scott Ford, Jack Thomas Matheney
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Publication number: 20120287979Abstract: 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: ApplicationFiled: May 13, 2011Publication date: November 15, 2012Inventors: ALBERT L. GARRETT, JACK THOMAS MATHENEY
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Publication number: 20100142540Abstract: 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: ApplicationFiled: November 11, 2009Publication date: June 10, 2010Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
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Publication number: 20100142378Abstract: 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: ApplicationFiled: November 11, 2009Publication date: June 10, 2010Inventors: Jack Thomas Matheney, Jeffrey Scott Ford, Albert L. Garrett
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Publication number: 20100146616Abstract: 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: ApplicationFiled: November 11, 2009Publication date: June 10, 2010Inventors: Albert L. Garrett, Jeffrey Scott Ford, Jack Thomas Matheney
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Patent number: 7272109Abstract: 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: GrantFiled: August 27, 2004Date of Patent: September 18, 2007Assignee: Conexant Systems, Inc.Inventors: Mark A. Webster, Albert L. Garrett, Steven D. Halford, Michael J. Seals
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Patent number: 7174138Abstract: 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: GrantFiled: August 23, 2004Date of Patent: February 6, 2007Assignee: Conexant Systems, Inc.Inventors: Mark A. Webster, Albert L. Garrett, Steven D. Halford
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Patent number: 6973296Abstract: 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: GrantFiled: December 4, 2001Date of Patent: December 6, 2005Assignee: Intersil Americas Inc.Inventors: Mark A. Webster, Paul J. Chiuchiolo, Albert L. Garrett
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Patent number: 6748200Abstract: 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: GrantFiled: April 4, 2003Date of Patent: June 8, 2004Inventors: Mark A. Webster, Alex C. Yeh, Albert L. Garrett
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Patent number: 6724834Abstract: 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: GrantFiled: February 22, 2002Date of Patent: April 20, 2004Inventors: Albert L. Garrett, Keith R. Baldwin
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Publication number: 20030161428Abstract: 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: ApplicationFiled: February 22, 2002Publication date: August 28, 2003Inventors: Albert L. Garrett, Keith R. Baldwin
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Publication number: 20030104797Abstract: 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: ApplicationFiled: December 4, 2001Publication date: June 5, 2003Inventors: Mark A. Webster, Paul J. Chiuchiolo, Albert L. Garrett
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Patent number: RE43367Abstract: 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: GrantFiled: February 5, 2009Date of Patent: May 8, 2012Assignee: Intellectual Ventures I LLCInventors: Mark A. Webster, Albert L. Garrett, Steven D. Halford