Qualcomm Incorporated

Quicklogic Corporation

Amir Abbas Emadzadeh

Sai Pradeep Venkatraman

Weihua Gao

Sundar Raman

Gengsheng Zhang

Ju-Yong Do

Lionel Jacques Garin

Stephen Joseph Beauregard

A wrist worn heart rate monitor includes a photoplethysmogram (PPG) sensor and an inertial sensor. Signals from the inertial sensor are used to identify and remove noise from the PPG signals. An initial heart rate value is selected from a number of heart rate candidates that remain in the resulting PPG spectrum and is used to track the heart rate of the user. The PPG spectrum is monitored while tracking the heart rate to determine if the selected initial heart rate value is in error. The PPG spectrum may be monitored by determining a correlation of possible heart rate candidates in each PPG spectrum to the previous heart rate candidates and resetting the heart rate value accordingly. Additionally or alternatively, the PPG spectrum may be monitored by determining when only a single heart rate candidate is present in consecutive PPG spectra and resetting the heart rate value accordingly.

Heart rate monitor

Method, device, and computer program product that may improve communications between a mobile device and an access point device are disclosed. In one embodiment, an access point device includes a transceiver configured to receive signals from a mobile device, a processor coupled to the transceiver, and a memory coupled to the processor, the memory having stored thereon code configured to be executed by the processor, the code instructing the processor to: control a plurality of beacons in the access point device, obtain range measurements using the plurality of beacons in the access point device, and assist calibration of a beacon in the mobile device using the range measurements obtained by the plurality of beacons in the access point device.

Communications between a mobile device and an access point device

Various methods, apparatuses and/or articles of manufacture are provided which may be implemented in one or more electronic devices supporting mobile device positioning within an indoor environment. Tiered positioning assistance data (tiered-PAD) corresponding to an indoor environment may be generated and/or distributed. Mobile device positioning and/or navigation capabilities may be based, at least in part, on tiered-PAD corresponding to the indoor environment. Tiered-PAD may be provided to a plurality of mobile devices. A given mobile device may, for example, select applicable portion(s) of tiered-PAD to affect one or more positioning functions and/or the like which may be performed, at least in part, by the mobile device.

Tiered positioning assistance data for mobile devices within an indoor environment

The present disclosure describes methods, systems, computer-readable media, and apparatuses for evaluating the suitability of AP signaling for RTT-based location calculation. Various evaluation methods are disclosed to enable the signaling to be tested for consistency and reliability. An AP may be analyzed by a mobile device or other communications mechanism to determine whether the AP is suitable for RTT-based location signaling. A mobile device receives multiple signals from an evaluated AP at various locations in the indoor area, and derives RTT data from the signals. The RTT data is analyzed to determine whether RTT data from the AP should be used by mobile devices in the process of calculating their location.

System and method for deploying an RTT-based indoor positioning system

A method for requesting assistance data includes, at a mobile device, determining an expected quality of service information, transmitting a request for assistance data, transmitting the expected quality of service information, and receiving an assistance data file comprising heat map information, wherein the heat map information includes a heat map grid resolution and a suitable quantization precision level for heat map values as determined, at least in part, based on the expected quality of service information.

Adaptive assistance data for tiered service and efficiency in indoor positioning

Techniques are provided for providing a processing delay estimate of an access point, or turnaround calibration function (TCF), associated with round trip time (RTT) measurements. Mobile devices, access points, and/or other systems can utilize these techniques to derive processing delay from the RTT measurements. Crowdsourcing can also be used to help increase the accuracy of the processing delay estimate, which can be propagated to multiple devices.

Processing delay estimate based on crowdsourcing data

Method, device, and computer program product that may improve communications between a mobile device and an access point device are disclosed. In one embodiment, a method of communicating between a mobile device and an access point device comprises control a plurality of beacons in the access point device, establishing a communication between the access point device with the mobile device using a first beacon in the plurality of beacons, broadcasting availability of the plurality of beacons in the access point device via the first beacon, and establishing the communication with the mobile device using a second beacon in the plurality of beacons.

A method for providing tiered indoor positioning service includes: receiving a request for assistance data from a mobile device; receiving expected quality of service information from the mobile device; generating an adaptive assistance data file comprising heat map data based at least in part on the received expected quality of service information; and transmitting the adaptive assistance data file to the mobile device.

Methods and apparatuses for performing geotagging referencing in both indoor and outdoor environments are presented. In some embodiments, a mobile device may record a digital media object comprising at least one digitally recorded event of a surrounding environment of the mobile device. The mobile device may obtain at least one geotagging datum, the at least one geotagging datum comprising at least one timing measurement from at least one reference source. The mobile device may determine a location of the digital media object using the at least one geotagging datum. The mobile device may then label the digital media object with the location of the digital media object.

Method and apparatus for geotagging

Systems and methods for managing positioning assistance data for large regions are described herein. An example of a method for retrieving positioning assistance data at a mobile device as described herein includes identifying a master region in which the mobile device is located and sub-region definitions associated with the master region, where the sub-region definitions are indicative of area occupied by the sub-regions within the master region; obtaining a first estimated position of the mobile device within the master region; defining a projected area centered at the first estimated position; and obtaining first assistance data corresponding to at least one sub-region that overlaps the projected area.

Method and apparatus for managing positioning assistance data

Methods and devices are described for merging maps. In one potential embodiment a method may comprise receiving an indication of at least one plurality of geographically proximate points, where each of the at least one plurality of geographically proximate points are determined by at least one access point in communication with one or more mobile devices. A first and second map may then be received, where the first map and the second map each cover a first area such that the first area is in both the first map and the second map. The first map and the second map may then be merged by matching a mapping of a first portion of an indication of the at least one plurality of geographically proximate points on the first map and a second portion of an indication of an at least one plurality of geographically proximate points on the second map.

Intelligent map combination for venues enabling indoor positioning

Techniques are provided for utilizing one or more mobile devices to estimate distances between wireless access points (APs). Embodiments can, for example, enable mobile devices, wireless APs, and/or other systems to estimate a distance between two wireless APs using Round-Trip Time (RTT) measurements obtained by one or more mobile devices. The RTT measurements can be utilized based on whether one or more related Received Signal Strength Indication (RSSI) measurements exceed a threshold value. Embodiments can also utilize crowdsourcing to obtain distance estimation data (e.g., distance estimates, RTT and/or RSSI measurements, etc.) from one or more mobile devices and/or propagate a determined distance, based on the distance estimation data, to multiple devices.

Growing community of inventors

Campbell, CA, United States of America

Amir Abbas Emadzadeh