| Polaris Wireless, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120014567 | Wireless Location and Facial/Speaker Recognition System - An integrated wireless location and facial/speaker-recognition system that provides distinct advantages over facial-recognition systems and speaker-recognition systems of the prior art is disclosed. The integrated system is capable of using information from a wireless location system to improve the performance of the facial recognition and speaker recognition. The system is capable of processing photographs and/or audio samples captured by a camera/microphone at a fixed location (e.g., a digital pan-zoom-tilt (PZT) surveillance camera, etc.) as well as those captured by a mobile camera/microphone (e.g., a digital camera and microphone in a smartphone, etc.). The system also features a feedback mechanism by which the location-informed results can be used to improve the system's recognition abilities. | 01-19-2012 |
| 20110298930 | Integrated Wireless Location and Surveillance System - An integrated wireless location and surveillance system that provides distinct advantages over video and audio surveillance systems of the prior art is disclosed. The integrated system comprises (i) a surveillance system comprising a plurality of cameras, each covering a respective zone, and (ii) a wireless location system that is capable of providing to the surveillance system, at various points in time, an estimate of the location of a wireless terminal that belongs to a person of interest. The surveillance system intelligently selects the video feed from the appropriate camera, based on the estimated location of the wireless terminal, and delivers the selected video feed to a display. As a person of interest moves from one zone to another, the surveillance system is capable of dynamically updating which video feed is delivered to the display. | 12-08-2011 |
| 20110189960 | Estimating Whether A Wireless Terminal Is Indoors Using Pattern Classification - A method and apparatus for estimating whether or not a wireless terminal is indoors are disclosed. The illustrative embodiment employs a pattern classifier that is trained on a plurality of input/output mappings, where each mapping corresponds to a respective location, the output of the mapping is a Boolean value that indicates whether the location is indoors, and the input of the mapping is based on empirical and predicted signal data for the location. In accordance with the illustrative embodiment, a computer-executable program is generated based on the trained pattern classifier. The computer-executable program estimates whether or not a wireless terminal is indoors based on empirical data reported by the terminal, and on a location estimate for the terminal that might be crude or inaccurate (e.g., based on Cell Identifier [Cell-ID], GPS, etc.). | 08-04-2011 |
| 20110187525 | Search Area Reduction For Estimating the Location of a Wireless Terminal Based On Indoor Detection - A method of using a non-GPS-derived technique to estimate the location of an Assisted-GPS-enabled wireless terminal for the purposes of generating location-specific assistance data for the wireless terminal is disclosed. The wireless terminal then uses the assistance data to acquire and process one or more GPS signals and to derive information that is probative of the wireless terminal's location. The GPS-derived location information is then combined with non-GPS-derived location to form an estimate of the location of the wireless terminal that is better than can be derived from either alone. This combination of GPS-derived and non-GPS techniques is particularly useful when the wireless terminal can only acquire one or two GPS signals because it is not possible to determine the location of the wireless terminal with only two GPS signals alone. | 08-04-2011 |
| 20110156952 | Positioning System and Positioning Method - It is an object of the present invention to perform positioning at the proper positioning time and positioning precision in response to a requirement with respect to positioning. A positioning server | 06-30-2011 |
| 20110156951 | Positioning System and Positioning Method - It is an object of the present invention to obtain a positioning result corresponding to the state of a receiver in less time. A positioning server | 06-30-2011 |
| 20110156950 | Positioning System and Positioning Method - It is an object of the present invention to perform positioning at favorable positioning precision and in a favorable positioning time, according to whether a receiver is indoors or outdoors. A positioning server | 06-30-2011 |
| 20110102256 | Positioning system, positioning method, and positioning program - It is possible to obtain the highly accurate positioning result even when positioning by a GPS is unsuccessful. A positioning server | 05-05-2011 |
| 20100329144 | Estimating the Location of a Wireless Terminal Based on Calibrated Signal-Strength Measurements - A process and machine for estimating the location of a wireless terminal is disclosed. The illustrative embodiment of the present invention is based on the observation that the signal strength of a signal from a transmitter is different at some locations, and, therefore, the location of a wireless terminal can be estimated by comparing the signal strength it currently observes against a map or database that correlates locations to signal strengths. In accordance with a first example, if a particular radio station is known to be received well at a first location and poorly at a second location, and a given wireless terminal at an unknown location is receiving the radio station poorly, it is more likely that the wireless terminal is at the second location than it is at the first location. | 12-30-2010 |
| 20100245115 | Estimating the Location of a Wireless Terminal Based on Signal Path Impairment - A technique for estimating the location of a wireless terminal at an unknown location in a geographic region is disclosed. The technique is based on the recognition that there are traits of electromagnetic signals that are dependent on topography, the receiver, the location of the transmitter, and other factors. For example, if a particular radio station is known to be received strongly at a first location and weakly at a second location, and a given wireless terminal at an unknown location is receiving the radio station weakly, it is more likely that the wireless terminal is at the second location than at the first location. | 09-30-2010 |
| 20100227626 | Location Determination Using RF Fingerprinting - A method for determining the location of a mobile unit (MU) in a wireless communication system and presenting it to a remote party. The location of a remote MU is determined by comparing a snapshot of a predefined portion of the radio-frequency (RF) spectrum taken by the MU to a reference database containing multiple snapshots taken at various locations. The result of the comparison is used to determine if the MU is at a specific location. The comparison may be made in the MU, or at some other location situated remotely from the MU. In the latter case, sufficient information regarding the captured fingerprint is transmitted from the MU to the remote location. The database may be pre-compiled or generated on-line. | 09-09-2010 |
| 20090280829 | Using A Priori Geographical Location Density Information To Improve Location Accuracy - A technique for improving location accuracy based on a priori geographical location density information is disclosed. In accordance with the illustrative embodiment, geographical location density information is derived from historical wireless location data such as the locations of prior E911 emergency calls, Location Based Services (LBS) sessions, conventional voice calls, packet data sessions, vehicle routes, and so forth. The geographical location density information is represented by a probability distribution function, and is incorporated into an existing location technique. Advantageously, the technique of the present invention can be employed in conjunction with any existing location technology; moreover, the historical location data can be obtained via any technology, and from any wireless network, including those that are different than that of the future location estimates. | 11-12-2009 |
| 20080299995 | Location Estimation of Wireless Terminals Through Pattern Matching of Signal-Strength Differentials - A method of estimating the location of a wireless terminal is disclosed that is ideally suited for use with legacy systems. The illustrative embodiment of the present invention is based on the observation that the signal strength of a signal from a transmitter is different at some locations, and, therefore, the location of a wireless terminal can be estimated by comparing the signal strength it currently observes against a map or database that correlates locations to signal strengths. For example, if a particular radio station is known to be received well at a first location and poorly at a second location, and a given wireless terminal at an unknown location is receiving the radio station poorly, it is more likely that the wireless terminal is at the second location than it is at the first location. | 12-04-2008 |
| 20080299993 | Computationally-Efficient Estimation of the Location of a Wireless Terminal Based on Pattern Matching - A method of using a non-GPS-derived technique to estimate the location of an Assisted-GPS-enabled wireless terminal for the purposes of generating location-specific assistance data for the wireless terminal is disclosed. The wireless terminal then uses the assistance data to acquire and process one or more GPS signals and to derive information that is probative of the wireless terminal's location. The GPS-derived location information is then combined with non-GPS-derived location to form an estimate of the location of the wireless terminal that is better than can be derived from either alone. This combination of GPS-derived and non-GPS techniques is particularly useful when the wireless terminal can only acquire one or two GPS signals because it is not possible to determine the location of the wireless terminal with only two GPS signals alone. | 12-04-2008 |
| 20080214208 | Computationally-Efficient Estimation of the Location of a Wireless Terminal Based on Pattern Matching - A method of using a non-GPS-derived technique to estimate the location of an Assisted-GPS-enabled wireless terminal for the purposes of generating location-specific assistance data for the wireless terminal is disclosed. The wireless terminal then uses the assistance data to acquire and process one or more GPS signals and to derive information that is probative of the wireless terminal's location. The GPS-derived location information is then combined with non-GPS-derived location to form an estimate of the location of the wireless terminal that is better than can be derived from either alone. This combination of GPS-derived and non-GPS techniques is particularly useful when the wireless terminal can only acquire one or two GPS signals because it is not possible to determine the location of the wireless terminal with only two GPS signals alone. | 09-04-2008 |
| 20080207222 | Estimating Whether Or Not A Wireless Terminal Is In A Geographic Zone Using Pattern Classification - A method and apparatus are disclosed for estimating whether or not a wireless terminal is in a geographic zone. The illustrative embodiment employs a pattern classifier that is trained on traits of electromagnetic signals at various locations. A computer-executable program is then generated based on the trained pattern classifier, and the program is installed and executed on a subscribed identity module of the terminal. | 08-28-2008 |
| 20080207219 | Estimating Whether Or Not A Wireless Terminal Is In A Zone Using Radio Navigation - A method for estimating whether or not a wireless terminal is in a zone is described. The method is based on the following observation: when a wireless terminal is at a particular location, the values of the traits of the ambient electromagnetic signals that vary with location represent a “fingerprint” or “signature” for that location. This enables the location of a wireless terminal to be estimated by comparing the observed values of the traits of the ambient electromagnetic signals with the fingerprint for each potential location for the wireless terminal. | 08-28-2008 |
