Patents by Inventor Emilio Maldonado

Emilio Maldonado 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: 7894412
    Abstract: An apparatus configured to acquire received signal strength intensities (RSSIs) for a wireless device from a plurality of access points (APs) located on a plurality floors. The apparatus is configured to determine which floor the wireless device is on by analyzing the RSSIs. In an example embodiment, the RSSIs are adjusted, and the adjusted RSSIs for each floor are summed. The floor with highest sum of adjusted RSSIs is determined to be the floor the wireless device is on. In an example embodiment, the floor that the wireless device is on is determined by calculating the probability that the wireless device is within the cell of each AP on the network, and combining the probabilities for each floor. Known RSSIs between APs can be employed for comparing measured RSSIs with the known RSSIs to determine the probability that the wireless device is within the cell of each AP.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 22, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Brian Donald Hart, Anto Jacob, Nirmala Nott Venkataramani, Emilio Maldonado
  • Patent number: 7835749
    Abstract: In one embodiment, a method includes receiving calibration data, computing one or more attributes of a pathloss model based on the calibration data, computing estimated locations using the received signal strength values of the calibration data points, associating location errors with the one or more calibration data points, and computing a location quality within a region based on the associated location errors.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: November 16, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Brian Donald Hart, Milind Paranjpe, Emilio Maldonado, Allan Thomson, Bhautik Doshi, Anita Pandey
  • Patent number: 7734296
    Abstract: In one embodiment, a method includes storing, in a data store, a physical network model of a network environment, the network environment comprising one or more central controllers and one or more access points each operative to associate with a central controller, the physical network model comprising one or more region objects, each region object corresponding to a physical region of the network environment, each region object further including one or more radio frequency (RF) coverage maps, each RF coverage map defining a location of one or more access points and RF properties of a physical space; receiving a first mapping definition between a location server and a one or more region objects of the physical network model; receiving a second mapping definition between the location server and one or more central controllers; transmitting the one or more region objects in the first mapping definition to the location server; and configuring the location server and the one or more central controllers in the sec
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: June 8, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Allan Thomson, Bhautik Doshi, Emilio Maldonado, Madhavi Vulpala
  • Publication number: 20090067392
    Abstract: An apparatus configured to acquire received signal strength intensities (RSSIs) for a wireless device from a plurality of access points (APs) located on a plurality floors. The apparatus is configured to determine which floor the wireless device is on by analyzing the RSSIs. In an example embodiment, the RSSIs are adjusted, and the adjusted RSSIs for each floor are summed. The floor with highest sum of adjusted RSSIs is determined to be the floor the wireless device is on. In an example embodiment, the floor that the wireless device is on is determined by calculating the probability that the wireless device is within the cell of each AP on the network, and combining the probabilities for each floor. Known RSSIs between APs can be employed for comparing measured RSSIs with the known RSSIs to determine the probability that the wireless device is within the cell of each AP.
    Type: Application
    Filed: September 7, 2007
    Publication date: March 12, 2009
    Inventors: Brian Donald Hart, Anto Jacob, Nirmala Nott Venkataramani, Emilio Maldonado
  • Publication number: 20070281707
    Abstract: In one embodiment, a method includes storing, in a data store, a physical network model of a network environment, the network environment comprising one or more central controllers and one or more access points each operative to associate with a central controller, the physical network model comprising one or more region objects, each region object corresponding to a physical region of the network environment, each region object further including one or more radio frequency (RF) coverage maps, each RF coverage map defining a location of one or more access points and RF properties of a physical space; receiving a first mapping definition between a location server and a one or more region objects of the physical network model; receiving a second mapping definition between the location server and one or more central controllers; transmitting the one or more region objects in the first mapping definition to the location server; and configuring the location server and the one or more central controllers in the sec
    Type: Application
    Filed: November 6, 2006
    Publication date: December 6, 2007
    Applicant: Cisco Technology, Inc.
    Inventors: Allan Thomson, Bhautik Doshi, Emilio Maldonado, Madhavi Vulpala