601 results about "Location technology" patented technology

A system for wirelessly locating mobile station/units (MS) and using resulting location determinations for providing a product or service is disclosed. The system is useful for routing an MS user to a plurality of desired locations, alerting an MS user to a nearby desired product or service based on satisfaction of user criteria, and providing enhanced security and 911 response. In one embodiment, the system responds to MS location requests via, e.g., Internet communication between a distributed network of location processing sites. A plurality of locating technologies including those based on: (1) TDOA; (2) pattern recognition; (3) timing advance; (5) GPS and network assisted GPS, (6) angle of arrival, (7) super resolution enhancements, and (8) supplemental information from low cost base stations can be activated, in various combinations, by system embodiments. MS location difficulties resulting from poor location accuracy/reliability and/or poor coverage are alleviated via such technologies in combination with automatically adapting and calibrating system performance according to environmental and geographical changes so that the system becomes progressively more comprehensive and accurate. Further, the system can be modularly configured for use in location signaling environments ranging from urban, dense urban, suburban, rural, mountain to low traffic or isolated roadways. Accordingly, the system is useful for 911 emergency calls, tracking, routing, people and animal location including applications for confinement to and exclusion from certain areas.

Location technologies are combined with other information systems to provide augmented information for individuals such as a traveler in an automobile.

A Wide Area Sensor Network (WASN) is disclosed that utilizes wideband software defined radios (SDRs) to monitor RF energy over a wide frequency range, detect when critical frequencies are being jammed or otherwise interfered with, and locate the source of the interference so that the interference can be eliminated. The WASN may use one or more geolocation techniques In addition, the WASN may detect and locate unauthorized transmitters as well as estimate the transmitted power of authorized transmitters to assure they are not transmitting more power than authorized.

According to an embodiment of the present invention, a three-dimensional (3-D) energy-based emitter geolocation technique determines the geolocation of a radio frequency (RF) emitter based on energy or received signal strength (RSS) of transmitted signals. The technique may be employed with small unmanned air vehicles (UAV), and obtains reliable geolocation estimates of radio frequency (RF) emitters of interest.

A portable RFID reader (or reader/writer) that also employs a location determination subsystem that facilitates determination of the reader (or reader/writer) location. The location subsystem can employ a satellite-based GPS (Global Positioning System) location technology where such signals are unimpeded by structures. Additionally, the location subsystem can employ other terrestrial location technologies that operate inside structures such as warehouses and the factory automation environment.

A new system design of multimedia recognition, processing, and indexing utilizes several new researches and technologies in the field of multi-media processing. The system integrates mature technologies being used in video security surveillance, media post-production, digital video storage and management, military visual and tacking technologies. The system makes unique integration of these existing, new, and upcoming technologies that have not been used in this combined fashion before, therefore providing new usage and applications beyond the simple sum of the functions of each technology. These technologies as components in a system that is open standard, and therefore can improve itself by modifying and replacing the technology components. The design of the system targets primarily heavily produced media contents from news, entertainment, and education and training, but not limited to these contents. Other digital contents, from live broadcast, to web broadcast, to home video, web cam, etc. can certainly use many different components of the system, and to utilize the open standard platform for various usages.

A mobile station location server determines the mobile station's location through various location techniques or by receiving the location information from the mobile station over an encrypted channel. The server stores the location in memory that may be access by authorized client access devices. A requesting client access device transmits a request to the server over the Internet. The server authenticates the request to verify that the client access device is authorized to receive the location information. If the client access device is authorized, the server can then transmit the information in either an encrypted or decrypted form to the device.

The invention relates to a positioning of an assembly 1. An assembly 1 comprises a GNSS receiver 3 and a wireless communication module 2 and may exchange GNSS information with other assemblies 1 using cellular or non-cellular links. Relative positions between assemblies 1 are determined based on GNSS measurements at the assemblies 1. An API 70 supports a communication between a GNSS receiver 3 and a wireless communication module 2. A positioning is made controllable by a user interface 122. A positioning server 4, 6 may forward information from one assembly 1 to the other or take care of the position computations for assemblies 1. An absolute positioning is enabled by means of a GNSS receiver 7 arranged at a known location and coupled to such a server 4. A network of positioning servers enables an information exchange between positioning servers 4, 5, 6.

According to an embodiment of the present invention jamming energy is allocated to a plurality of emitters based on a three-dimensional (3-D) emitter geolocation technique that determines the geolocation of radio frequency (RF) emitters based on energy or received signal strength (RSS) and/or time differences of arrival (TDOAs) of transmitted signals. The three-dimensional (3-D) emitter geolocations are used to rank emitters of interest according to distance and available radio frequency (RF) jamming energy is allocated to the emitters in rank order. The techniques may be employed with small unmanned air vehicles (UAV), and obtains efficient use of jamming energy when applied to radio frequency (RF) emitters of interest.

A model construction module (MCM) for constructing a probabilistic model (PM) of a wireless environment (RN) in which a target device (T) communicates using signals that have a measurable signal value (x), such as signal strength. The model construction module forms several submodels (611-631) of the wireless environment (RN). Each submodel indicates a probability distribution (F₁-F₃) for signal values at one or more locations (Q₁-Q_Y) in the wireless environment. The module combines the submodels to a probabilistic model (PM) of the wireless environment (RN), such that the probabilistic model indicates a probability distribution for signal values at several locations in the wireless environment. Alternatively, the model may insert new locations to a single model based on a combination of existing locations. The combination of submodels or existing locations comprises combining the inverse cumulative distribution functions of the submodels or existing locations.

A target device's location is estimated by a location estimation module (LEM) that comprises a probabilistic model (PM) for a plurality of sample points, each of which comprises a sample location and an expected distribution of signal values at that sample point. The location estimation module (LEM) makes a sequence (OS) of observations o_n, n=1, 2, 3 . . . , of signal values. Each observation corresponds to a respective location q_n along the target device's path. The sequence of observations and the respective location constitute a hidden Markov model. The module estimates the target device's location q_n based on the probabilistic model (PM) and the sequence of observations, wherein the sequence of observations comprises one or more future observations o_n+m for which m is a positive integer. In other words, the target device's location is estimated, at least partially, based on knowledge of its future.

A wireless telecommunications network uses a wireless location technology to determine the locations of mobile stations. As part of a location accuracy analysis process, the wireless location technology is used to obtain a measured latitude and longitude for a mobile station located at a test site having a known latitude and longitude. A data analysis system calculates the radial location error, expressed as a distance, between the measured and known latitude and longitude values. The process is repeated a number of times sufficient to calculate the mean radial location error to within a predetermined uncertainty at a predetermined confidence level.

Provided is a distributed system and method for enabling new and useful location dependent features and functionality to mobile data processing systems. Mobile data processing systems interact with each other as peers in communications and interoperability. Indirectly located mobile data processing systems are located relative other mobile data processing systems, and are automatically located using whereabouts data of directly located mobile data processing systems and/or whereabouts data of other indirectly located mobile data processing systems. A mobile data processing system may dynamically take on roles of being directly located or indirectly located, depending on the environment and capabilities available at a particular time. Reference whereabouts data is appropriately shared between mobile data processing systems to carry out automatic location techniques ensuring mobile data processing systems are kept up to date with their own whereabouts and whereabouts of others, regardless of the freely moving travels of any of the mobile data processing systems involved, and the location technologies that may or may not be available when needed. A confidence is associated to whereabouts data shared for facilitating selection of the best candidate data used in determining new whereabouts information.