Patents Assigned to Greenvity Communications, Inc.
  • Publication number: 20160182252
    Abstract: A technique to operate a wireless (IEEE 802.15) and powerline (Broadband PLC) mesh network uses bridges to bridge the different network types. Each bridge has a an IEEE 802.15 MAC/PHY and a Broadband PLC MAC/PHY.
    Type: Application
    Filed: December 16, 2015
    Publication date: June 23, 2016
    Applicant: Greenvity Communications, Inc.
    Inventors: Pankaj Razdan, Bosco Jacinto, Hung C. Nguyen
  • Patent number: 8947289
    Abstract: A switched-capacitor amplifier comprises an operational amplifier (op-amp), a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and a plurality of switches connected to these capacitors. The first capacitor equals the third capacitor, the second capacitor equals the fourth capacitor, and the first capacitor is asymmetric to the second capacitor, the third capacitor is asymmetric to the fourth capacitor. A ratio of the first capacitor and the second capacitor is a function of a simulated parasitic capacitance of the switched-capacitor amplifier, a simulated DC gain of the operational amplifier, and a target gain of the switched-capacitor circuit.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: February 3, 2015
    Assignee: Greenvity Communications, Inc.
    Inventors: Junjie Yang, John Tero
  • Patent number: 8767855
    Abstract: A SCO estimator comprises the following units. A module obtains a first data output by a first unit and copies the first data to obtain copied data. A QAM unit quadrature modulates the copied data into each sub-carrier of each OFDM symbol to regenerate transmitted modulated data. A first phase unit obtains a first phase of each sub-carrier of each OFDM symbol of the modulated data. A second phase unit obtains a second data from a second unit, and obtains a second phase of each sub-carrier of each OFDM symbol of the second data. A comparator generates a comparing result according to the first phase and the second phase of each sub-carrier of each OFDM symbol. A divider divides the comparing result of each sub-carrier by the subcarrier index within each OFDM symbol and the OFDM symbol index of each OFDM symbol. An averaging unit averages the divided comparing result over number of sub-carriers and number of OFDM symbols.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: July 1, 2014
    Assignee: Greenvity Communications, Inc.
    Inventors: Rui Zhang, Hung C. Nguyen
  • Publication number: 20140176358
    Abstract: A switched-capacitor amplifier comprises an operational amplifier (op-amp), a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and a plurality of switches connected to these capacitors. The first capacitor equals the third capacitor, the second capacitor equals the fourth capacitor, and the first capacitor is asymmetric to the second capacitor, the third capacitor is asymmetric to the fourth capacitor. A ratio of the first capacitor and the second capacitor is a function of a simulated parasitic capacitance of the switched-capacitor amplifier, a simulated DC gain of the operational amplifier, and a target gain of the switched-capacitor circuit.
    Type: Application
    Filed: August 9, 2013
    Publication date: June 26, 2014
    Applicant: GREENVITY COMMUNICATIONS, INC.
    Inventors: Junjie Yang, John Tero
  • Patent number: 8570999
    Abstract: A system connected to power lines in a network includes a wireless component; a wired component interfaced with the power lines; a conversion component coupled to the wireless component and the wired component and performs at least unidirectional conversion of a transmission unit between wireless and wired, the conversion employs only MAC addresses for addressing.
    Type: Grant
    Filed: December 25, 2011
    Date of Patent: October 29, 2013
    Assignee: Greenvity Communications, Inc.
    Inventors: Hung C. Nguyen, John P. Tero
  • Publication number: 20130266056
    Abstract: A SCO estimator comprises the following units. A module obtains a first data output by a first unit and copies the first data to obtain copied data. A QAM unit quadrature modulates the copied data into each sub-carrier of each OFDM symbol to regenerate transmitted modulated data. A first phase unit obtains a first phase of each sub-carrier of each OFDM symbol of the modulated data. A second phase unit obtains a second data from a second unit, and obtains a second phase of each sub-carrier of each OFDM symbol of the second data. A comparator generates a comparing result according to the first phase and the second phase of each sub-carrier of each OFDM symbol. A divider divides the comparing result of each sub-carrier by the subcarrier index within each OFDM symbol and the OFDM symbol index of each OFDM symbol. An averaging unit averages the divided comparing result over number of sub-carriers and number of OFDM symbols.
    Type: Application
    Filed: April 4, 2013
    Publication date: October 10, 2013
    Applicant: Greenvity Communications, Inc.
    Inventors: Rui Zhang, Hung C. Nguyen