Patents by Inventor Subash Marri Sridhar

Subash Marri Sridhar 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).

  • Publication number: 20170041899
    Abstract: Techniques for determining the position of a mobile device using almanac data are provided as are techniques for providing almanac data to the mobile device from a location server. The almanac data can be provided to the mobile device based on coarse location information provided by the mobile device. The almanac data can include information Media Access Control (MAC) addresses of one or more wireless access points and most recently used channel identification. The almanac data can also be binned by location by the location server and a subset of the almanac data can be selected to be provided to the mobile device based on the coarse location of the mobile device and on positioning effectiveness criteria associated with the wireless access points included in the almanac data.
    Type: Application
    Filed: October 18, 2016
    Publication date: February 9, 2017
    Inventors: Sai Pradeep VENKATRAMAN, Subash MARRI SRIDHAR, Douglas Neal ROWITCH
  • Patent number: 9565649
    Abstract: Disclosed are implementations, including a method, performed at a processor-based mobile device, that includes receiving at the mobile device antenna information for a wireless node, including a transmitter gain for the wireless node in at least one message transmitted to the mobile device. The at least one message includes, a beacon frame message, a fine timing measurement (FTM) protocol-based message, and/or an assistance data message transmitted from a remote central repository. The method also includes deriving an estimate of a receiver gain for a receiver of the mobile device based, at least in part, on the transmitter gain for the wireless node, and adjusting one or more signal strength values determined for signals received from the wireless node based on the estimate of the receiver gain of the receiver of the mobile device derived based, at least in part, on the transmitter gain for the wireless node.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: February 7, 2017
    Assignee: QUALCOMM INCORPORATED
    Inventors: Sai Pradeep Venkatraman, Subash Marri Sridhar, Saumitra Mohan Das, Carlos Horacio Aldana
  • Patent number: 9560620
    Abstract: Disclosed are methods and systems for obtaining measurements of a range between devices based on a Round Trip Time (RTT) for an exchange messages. In particular, described are techniques for transmitting messages between or among devices to share computed parameters indicative of ranges between devices.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: January 31, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Carlos Aldana, Subash Marri Sridhar
  • Patent number: 9549386
    Abstract: Techniques for determining the position of a mobile device using almanac data are provided as are techniques for providing almanac data to the mobile device from a location server. The almanac data can be provided to the mobile device based on coarse location information provided by the mobile device. The almanac data can include information Media Access Control (MAC) addresses of one or more wireless access points and most recently used channel identification. The almanac data can also be binned by location by the location server and a subset of the almanac data can be selected to be provided to the mobile device based on the coarse location of the mobile device and on positioning effectiveness criteria associated with the wireless access points included in the almanac data.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: January 17, 2017
    Assignee: Qualcomm Incorporated
    Inventors: Sai Pradeep Venkatraman, Subash Marri Sridhar, Douglas Neal Rowitch
  • Publication number: 20160255471
    Abstract: Disclosed are methods, devices, systems, apparatus, servers, computer-/processor-readable media, and other implementations, including a method, performed at a first processor-based wireless device, that includes obtaining by the first wireless device a communication comprising antenna information for one or more antennas of a second wireless device, determining at the first wireless device signal strength values for signals transmitted from the second wireless device, and performing location determination operations based on the determined signal strength values for the signals transmitted from the second wireless device, and on the antenna information for the one or more antennas of the second wireless device.
    Type: Application
    Filed: August 26, 2015
    Publication date: September 1, 2016
    Inventors: Subash MARRI SRIDHAR, Sai Pradeep VENKATRAMAN, Saumitra Mohan DAS, Carlos Horacio ALDANA
  • Publication number: 20160255463
    Abstract: Disclosed are methods, devices, systems, apparatus, servers, computer-/processor-readable media, and other implementations, including a method, performed at a processor-based wireless mobile device, that includes receiving, by the mobile device, signals that include at least one message comprising antenna information for a first wireless node transmitting the signals, and transmitting, by the mobile device, an information message including the antenna information for the first wireless node to a remote device configured to receive and store antenna data for multiple wireless nodes obtained by one or more wireless devices while visiting respective areas covered by the multiple wireless nodes.
    Type: Application
    Filed: August 26, 2015
    Publication date: September 1, 2016
    Inventors: Saumitra Mohan DAS, Sai Pradeep VENKATRAMAN, Subash MARRI SRIDHAR, Carlos Horacio ALDANA
  • Publication number: 20160255603
    Abstract: Disclosed are methods, devices, systems, apparatus, servers, computer-/processor-readable media, and other implementations, including a method, performed at a processor-based device, that includes obtaining antenna information for one or more wireless nodes, and generating based, at least in part, on the antenna information for the one or more wireless nodes, a heatmap representative of values measurable at a plurality of locations from signals transmitted by the one or more wireless nodes.
    Type: Application
    Filed: August 26, 2015
    Publication date: September 1, 2016
    Inventors: Sai Pradeep VENKATRAMAN, Subash MARRI SRIDHAR, Saumitra Mohan DAS, Carlos Horacio ALDANA
  • Publication number: 20160255604
    Abstract: Disclosed are implementations, including a method, performed at a processor-based mobile device, that includes receiving at the mobile device antenna information for a wireless node, including a transmitter gain for the wireless node in at least one message transmitted to the mobile device. The at least one message includes, a beacon frame message, a fine timing measurement (FTM) protocol-based message, and/or an assistance data message transmitted from a remote central repository. The method also includes deriving an estimate of a receiver gain for a receiver of the mobile device based, at least in part, on the transmitter gain for the wireless node, and adjusting one or more signal strength values determined for signals received from the wireless node based on the estimate of the receiver gain of the receiver of the mobile device derived based, at least in part, on the transmitter gain for the wireless node.
    Type: Application
    Filed: August 26, 2015
    Publication date: September 1, 2016
    Inventors: Sai Pradeep VENKATRAMAN, Subash MARRI SRIDHAR, Saumitra Mohan DAS, Carlos Horacio ALDANA
  • Publication number: 20160249315
    Abstract: Techniques for determining the position of a mobile device using almanac data are provided as are techniques for providing almanac data to the mobile device from a location server. The almanac data can be provided to the mobile device based on coarse location information provided by the mobile device. The almanac data can include information Media Access Control (MAC) addresses of one or more wireless access points and most recently used channel identification. The almanac data can also be binned by location by the location server and a subset of the almanac data can be selected to be provided to the mobile device based on the coarse location of the mobile device and on positioning effectiveness criteria associated with the wireless access points included in the almanac data.
    Type: Application
    Filed: February 24, 2015
    Publication date: August 25, 2016
    Inventors: Sai Pradeep VENKATRAMAN, Subash MARRI SRIDHAR, Doug Neal ROWITCH
  • Publication number: 20160241373
    Abstract: Disclosed are methods and systems for obtaining measurements of a range between devices in an exchange messages. In particular, described are techniques for transmitting messages between or among devices to share computed parameters indicative of ranges between devices. In particular implementations, shared computed parameters indicative of ranges between or among devices may enable computation of estimated locations of one or more of devices.
    Type: Application
    Filed: September 4, 2015
    Publication date: August 18, 2016
    Inventors: Subash Marri Sridhar, Carlos Aldana
  • Publication number: 20160192147
    Abstract: Methods, systems, computer-readable media, and apparatuses are presented for excluding peer-to-peer mobile device signal data from a heat map. In response to receiving an identifier of a mobile device in a peer-to-peer network group, a server may generate resultant data by excluding data associated with a signal generated by the mobile device from data used to generate a heat map. The server can generate the heat map using the resultant data.
    Type: Application
    Filed: September 24, 2015
    Publication date: June 30, 2016
    Inventors: Subash MARRI SRIDHAR, Sai Pradeep VENKATRAMAN, Praveen DUA
  • Publication number: 20160192151
    Abstract: Methods, systems, computer-readable media, and apparatuses are presented for determining positions of mobile devices in a peer-to-peer network group. In some embodiments, a server receives information regarding a distance between a group owner mobile device and a client mobile device in a peer-to-peer network group. The server determines whether the distance between the group owner mobile device and the client mobile device exceeds a threshold distance. If the threshold distance is not exceeded, the server associates a position of the group owner mobile device with a position of the client mobile device.
    Type: Application
    Filed: September 24, 2015
    Publication date: June 30, 2016
    Inventors: Subash MARRI SRIDHAR, Sai Pradeep VENKATRAMAN, Praveen DUA
  • Publication number: 20160119805
    Abstract: In a procedure for determining distance (or angle) between a pair of electronic devices wirelessly connected to one another, a current session may be temporarily suspended on request and thereafter the current session may be resumed. Temporary suspension and resumption of the current session may, for example, eliminate starting a new session between the pair of electronic devices and repeating a determination of parameters that were initially agreed upon in the current session. Temporary suspension of a current session may be signaled wirelessly, by one electronic device to the other electronic device, for example, by setting a specific value in a specific field, to signal that the current session is to be paused now, in a frame or message transmitted from the pausing device to the to-be-paused device. The current session may be resumed without repeating determination of the initially-agreed upon parameters, by transmitting a frame to initiate measurement exchange.
    Type: Application
    Filed: September 1, 2015
    Publication date: April 28, 2016
    Inventors: Carlos Horacio Aldana, Sandip HomChaudhuri, Santosh Kumar Vamaraju, Subash Marri Sridhar, Bernal Arroyo
  • Publication number: 20160095051
    Abstract: Techniques for determining a position of a mobile device are provided. An example of these techniques is a method that includes performing a passive scan for wireless transceivers proximate to the mobile device to generate passive scan results, generating a first wireless transceiver list, comprising a first set of wireless transceivers, transmitting a request to at least one wireless transceiver from the first wireless transceiver list requesting that the at least one wireless transceiver perform a scan, generating a second wireless transceiver list comprising identifying information for a second set of wireless transceivers, proximate to the at least one wireless transceiver, measuring signals received from wireless transceivers selected from at least one of the first wireless transceiver list and the second wireless transceiver list, and determining the position of the mobile device based at least in part on the signals measured.
    Type: Application
    Filed: September 30, 2014
    Publication date: March 31, 2016
    Inventors: Subash MARRI SRIDHAR, Sai Pradeep VENKATRAMAN, Gengsheng ZHANG
  • Publication number: 20150341233
    Abstract: Methods, apparatuses, and articles for location parameter reporting and processing are presented. In one example, a mobile device transmits a probe message to a transceiver device indicating that the mobile device is capable of reporting signal parameter measurements, such as received signal strength (RSSI), round-trip time (RTT), or any combination thereof, for example. Responsive to receipt of a probe message, a wireless transceiver may indicate to the mobile device that the transceiver is capable of utilizing the reported signal parameter measurements to construct or update, for example, localized heatmaps. The mobile device may report signal parameter measurements in response to one or more predetermined events.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 26, 2015
    Inventors: Subash Marri Sridhar, Sai Pradeep Venkatraman, Gengsheng Zhang
  • Publication number: 20150319631
    Abstract: Disclosed are methods and systems for obtaining measurements of a range between devices based on a Round Trip Time (RTT) for an exchange messages. In particular, described are techniques for transmitting messages between or among devices to share computed parameters indicative of ranges between devices.
    Type: Application
    Filed: April 29, 2015
    Publication date: November 5, 2015
    Inventors: Carlos Aldana, Subash Marri Sridhar