141 |
Method and apparatus for transmitting indoor context information |
US12901230 |
2010-10-08 |
US08880103B2 |
2014-11-04 |
Rajarshi Gupta; Andreas K. Wachter |
The subject matter disclosed herein relates to a system and method for determining indoor context information relating to a location of a mobile device. Indoor context information may be utilized by a mobile device or a network element to obtain an estimate of a location of the mobile device within an indoor environment. |
142 |
RADIOBEACON STATIONS, USER DEVICES, LOCATION DETERMINATION SYSTEMS, METHODS FOR CONTROLLING A RADIOBEACON STATION, METHODS FOR CONTROLLING A USER DEVICE, AND LOCATION DETERMINATION METHODS |
US14225668 |
2014-03-26 |
US20140292568A1 |
2014-10-02 |
PETER FLEMING; GERALD WHITWORTH; ESTHER OLULU ANYAEGBU |
A radiobeacon station is described comprising: a satellite receiver configured to receive satellite navigation data from a satellite; a timing circuit configured to determine a timing scheme based on the satellite navigation data; and a terrestrial transmitter configured to transmit a plurality of beacon signals based on the determined timing scheme. |
143 |
METHOD AND SYSTEM FOR INCREASING THE OPERATIONAL SAFETY OF MOBILE MACHINES IN ABOVEGROUND OR UNDERGROUND MINING OPERATIONS FOR THE EXTRACTION OF MINERALS BY UTILIZING THE RFID TECHNOLOGY |
US14353257 |
2012-10-26 |
US20140253292A1 |
2014-09-11 |
Marco Ahler; Sascha Stelter; Christian Hauck |
A system and method for increasing the operational safety of mobile machines in mining operations by utilizing RFID technology includes a transmitting unit at the mobile machine, a receiving unit, and a non-machine-related RFID transponder which can be activated by the transmitting unit and in the case of activation is contactlessly detected. A reference transponder and a control unit for actuating the transmitting unit and evaluating transponder signals in measuring cycles is provided. To improve the energy requirement of the method and system, the reference transponder may be mounted on the mobile machine at a defined distance, stored in the control unit, from the transmitting unit. The signal field strength L of the transmitter signal of the transmitting unit may be changed in dependence on the response signal of the reference transponder in a calibration cycle (KCB) for eliminating the environmental influences. |
144 |
UNDERWATER ACOUSTIC NAVIGATION SYSTEMS AND METHODS |
US14155669 |
2014-01-15 |
US20140126334A1 |
2014-05-08 |
Barry Megdal; Hans Scholze |
An acoustic underwater navigation system is disclosed. For instance, an underwater receiver determines its position using signals broadcast from an array of acoustic transmitters located near the surface. The position of the array is measured using global positioning system (GPS) technology and the transmitters collectively produce an acoustic signal in which the position and attitude of the array and the GPS time of transmission are encoded. An underwater receiver which is synchronized with the GPS time uses the transmitted position and attitude of the array and the transmission time information to calculate its position. |
145 |
Balloon-Based Positioning System and Method |
US13628990 |
2012-09-27 |
US20140085135A1 |
2014-03-27 |
Richard Wayne DEVAUL; Waleed KADOUS; Eric TELLER; Cliff Biffle; Edward Allen KEYES |
Disclosed herein are embodiments of a balloon-based positioning system and method. In one example embodiment, a system includes at least three balloons, with each balloon including a position-determining module (PDM) and a position-broadcasting module (PBM). Each PDM is configured for determining a position of the respective balloon and each PBM is configured for broadcasting a balloon signal containing balloon-positioning data of the respective balloon. The balloon-positioning data includes the determined position of the respective balloon and a corresponding time of broadcast. |
146 |
Underwater acoustic navigation systems and methods |
US12969363 |
2010-12-15 |
US08654610B2 |
2014-02-18 |
Barry Megdal; Hans Scholze |
An acoustic underwater navigation system is disclosed. For instance, an underwater receiver determines its position using signals broadcast from an array of acoustic transmitters located near the surface. The position of the array is measured using global positioning system (GPS) technology and the transmitters collectively produce an acoustic signal in which the position and attitude of the array and the GPS time of transmission are encoded. An underwater receiver which is synchronized with the GPS time uses the transmitted position and attitude of the array and the transmission time information to calculate its position. |
147 |
WIRELESS COMMUNICATION SYSTEM AND TIME SYNCHRONIZATION METHOD OF THE SAME |
US13545664 |
2012-07-10 |
US20140015711A1 |
2014-01-16 |
Shi-Xian YANG; Wei-Sheng YANG |
A wireless communication system having a time synchronization mechanism is provided. The wireless communication system comprises a first receiver and a second receiver. The first receiver tracks a code phase data of a satellite to generate a synchronization data related to a sync phase position and a first receiver phase position corresponding to one of first receiver time pulses. The second receiver comprises a receiving unit, a tracking unit and a computing unit. The receiving unit receives the synchronization data from the first receiver through a network. The tracking unit tracks the code phase data of the satellite to obtain a second receiver phase position corresponding to one of second receiver time pulses. The computing unit performs a time synchronization process with the first receiver and the satellite according to the code phase data, the synchronization data and the second receiver phase position. |
148 |
Measurement systems and methods for fingerprinting positioning |
US12864023 |
2008-10-06 |
US08611922B2 |
2013-12-17 |
Torbjörn Wigren; Johan Bolin; Per Willars |
A system, computer software and method for collecting, in addition to position data, additional positioning data in a user terminal served by a communication network. The method includes initiating, by generating a message within the user terminal, collection of the positioning data, where the positioning data includes information based on which a physical location of the user terminal is determined; measuring, by the user terminal, at least one parameter related to the physical location of the user terminal in response to the message; producing, within the user terminal, measurement reports that include the at least one parameter; selecting, within the user terminal, one or more measurement reports that were generated in response to the message generated by the user terminal; reporting the selected one or more measurement reports to an interface within the user terminal; and transmitting, from the interface, the reported one or more measurement reports to an external server or to the communication network. |
149 |
Method and system for bluetooth transport sharing to carry GPS or other types of data |
US12039032 |
2008-02-28 |
US08583169B2 |
2013-11-12 |
John Walley; Charlie Abraham |
Aspects of a method and system for Bluetooth transport sharing to carry GPS or other types of data are provided. A multi-standard Bluetooth enabled device may operate via integrated radios such as a GPS radio. The Bluetooth transport path may be shared to carry both Bluetooth data and non-Bluetooth data. The non-Bluetooth data may be converted to Bluetooth vendor specific packets using the assigned vendor specific commands. The Bluetooth vendor specific packets may be multiplexed with other Bluetooth HCI packets and communicate over the Bluetooth transport path. The Bluetooth vendor specific packets may be de-multiplexed based on the assigned vendor specific command and routed properly. Non-Bluetooth devices may be an on-chip and off-chip devices. The multi-standard Bluetooth enabled device may enable a downloadable driver to ensure communication with the off-chip devices. The Bluetooth transport path may be UART, USB, SPI, and/or I2C. |
150 |
Method and system for refining accuracy of location positioning |
US13613730 |
2012-09-13 |
US08554247B2 |
2013-10-08 |
Timo Heikkilae; Anssi Jakorinne; Timo Kuisma; Jyrki Paananen; Arno Hietanen |
To accurately determine the location of mobile device a multi-phase procedure incorporating mapping and location determination phases is suggested, wherein covered area estimation comprises (i) estimation of base station location, (ii) estimation of transmission range, (iii) estimation of signal map and/or (iv) estimation of area type. The actual location of the mobile device (10) is determined from the covered area estimation based on relative comparison between the actual environment data and estimations (i)-(iv) and weight numbers resulted from the comparison. During the both phases a database is stored in server (14) and updated whenever new environment data is received. The vertical position, or ‘elevation’, of mobile device is further estimated based on vertical level information associated with the covered area estimations during the mapping phase. |
151 |
METHOD FOR LOCATING PERSONS AND/OR MOBILE MACHINES IN MINE CAVERNS USING RFID TECHNOLOGY, AND LONGWALL FACE EXTRACTION INSTALLATION FOR CARRYING OUT THE METHOD |
US13637299 |
2011-03-24 |
US20130194079A1 |
2013-08-01 |
Marco Ahler; Sascha Stelter; Andreas Westphalen |
A method and a longwall face extraction installation have a device for locating persons and/or mobile machines in mine caverns using RFID technology. Base stations are arranged in a distributed manner along the mine cavern to be monitored and have a transmitter and a receiver. At least one RFID transponder is associated with the person or machine to be located, which has stored identification data, can be activated using the base station and can be read in a contactless manner using the base station. In order to provide a method for locating persons and a longwall face extraction installation, in particular for coal mining, which make it possible to effectively use RFID technology, the transmitters of adjacently positioned base stations along a region of the mine cavern to be monitored successively emit their transmission wave in order to activate an RFID transponder. |
152 |
Location determination for calls within a femtocell |
US12552838 |
2009-09-02 |
US08483713B2 |
2013-07-09 |
Yung Choi-Grogan |
When a call is placed within a femtocell area of coverage, the location of the femtocell is used as the location of the mobile device. The location of the femtocell is stored in the network, and if the call is placed through the femtocell, the location of the femtocell is used to determine the location of the mobile device. |
153 |
METHODS AND APPARATUS FOR RESOLVING WIRELESS SIGNAL COMPONENTS |
US13356518 |
2012-01-23 |
US20120120938A1 |
2012-05-17 |
Markus Mueck; Martin Hans; Maik Bienas; Andreas Schmidt |
Methods and apparatus enabling a wireless network to generate data that can be used by a receiver (e.g., UE) to resolve the contributions of individual transmitters, such as to determine its location without resort to external devices such as GPS satellites. In one embodiment, the wireless network comprises a single frequency network (SFN), and a unique base station identifier is embedded within the data, and encoded in a manner which allows the UE to calculate path characteristics (such as path latency, and Direction of Arrival) to triangulate its position. In one variant, the data encoding comprises weighting frames of data from different base stations using an orthogonal matrix. Advantageously, the encoding and embedded identifier are also transparent to legacy UE, thereby allowing for implementation with no infrastructure or UE modifications other than software. Network and user apparatus implementing these methodologies, and methods of doing business, are also disclosed. |
154 |
Location system |
US10685364 |
2003-10-14 |
US08175799B1 |
2012-05-08 |
Douglas Edward Woehler |
One embodiment of the present invention provides a ground surface location system for identifying an object and its location within a coverage area. The ground surface location system includes a location transmitter and a location identifier. The location transmitter is positioned at a location within the coverage area and has a physical location code corresponding to the location stored therein, and is configured to provide an optical signal representative of the physical location code. The location identifier is adapted to couple to the object and has an object identification code representative of the object stored therein, and is configured to receive the optical signal and to transmit an identification signal representative of the physical location code and the object identification code. |
155 |
Methods and apparatus for resolving wireless signal components |
US12286646 |
2008-09-30 |
US08103287B2 |
2012-01-24 |
Markus Mueck; Martin Hans; Maik Bienas; Andreas Schmidt |
Methods and apparatus enabling a wireless network to generate data that can be used by a receiver (e.g., UE) to resolve the contributions of individual transmitters, such as to determine its location without resort to external devices such as GPS satellites. In one embodiment, the wireless network comprises a single frequency network (SFN), and a unique base station identifier is embedded within the data, and encoded in a manner which allows the UE to calculate path characteristics (such as path latency, and Direction of Arrival) to triangulate its position. In one variant, the data encoding comprises weighting frames of data from different base stations using an orthogonal matrix. Advantageously, the encoding and embedded identifier are also transparent to legacy UE, thereby allowing for implementation with no infrastructure or UE modifications other than software. Network and user apparatus implementing these methodologies, and methods of doing business, are also disclosed. |
156 |
LOCATION DETERMINATION USING RADIO WAVE MEASUREMENTS AND PRESSURE MEASUREMENTS |
US12837583 |
2010-07-16 |
US20120013475A1 |
2012-01-19 |
Richard O. Farley; Dimosthenis Kaleas; Gianni Giorgetti |
A method and apparatus for determining a location of a wireless device using radio waves and pressure measurements is disclosed. In one embodiment, a plurality of Radio Signal Strength (RSS) measurements are used to trilaterate an approximate location of the wireless device. The wireless device also takes pressure measurements that are compared with a second pressure measurement made by at least one other pressure sensor at a known elevation and in a local area near the wireless device. This comparison is used to generate an accurate estimate of the elevation of the wireless device. The accurate estimate of elevation may be combined with the RSS measurements to yield an accurate estimate of the location of the wireless device. |
157 |
System for determining position over a network |
US12270405 |
2008-11-13 |
US08085201B2 |
2011-12-27 |
Jonathan Ladd; Patrick C. Fenton |
A system to determine position, frequency and clock offsets over a network utilizing signals of opportunity transmitted by one or more transmitters with known locations, the system includes a base receiver with a clock and a known position that determines ranges to the transmitters, takes a series of samples of the signals of opportunity and time tags the series with times of receipt, calculated times of transmission based on the calculated ranges, or both. The base receiver transmits the time tagged series and, as appropriate, computed ranges to the remote receivers. A given remote receiver saves and time tags samples of the signals of opportunity, correlates the time-tagged series with the saved samples, and calculates a time offset as a time difference of the times of receipt at the remote receiver and either the time of receipt at the base receiver or the time of transmission calculated at the base receiver. The remote receiver calculates position based on the time offsets, and as appropriate, the ranges provided by the base receiver. The elevations of the remote receivers may be calculated as part of the position calculations, determined iteratively based on constraining the Z coordinate to an average elevation, or determined from differences in air pressure sensor readings at the base and remoter receivers. |
158 |
GPS-ASSISTED SOURCE AND RECEIVER LOCATION ESTIMATION |
US12839362 |
2010-07-19 |
US20110169697A1 |
2011-07-14 |
Curtis Ling; Stuart Strickland |
A mobile communication device includes, in part, a first wireless receiver adapted to determine, as it travels along a path, a multitude of positions of the mobile communication device using signals received from a primary positioning source, a second wireless receiver adapted to receive signals from one or more ambient wireless sources as the mobile communication device travels along the path, and a positioning module. An internal or external memory stores estimated positions and corresponding time references of the signals of the one or more ambient sources. The positioning module uses the data stored in the database to estimate the position of the mobile communication device when no primary positioning source signal is available. The positioning module optionally uses the data stored in the database to improve estimates of the position of the mobile communication device when primary positioning signal is available. |
159 |
Location Determination For Calls Within A Femtocell |
US12552838 |
2009-09-02 |
US20110053609A1 |
2011-03-03 |
Yung Choi-Grogan |
When a call is placed within a femtocell area of coverage, the location of the femtocell is used as the location of the mobile device. The location of the femtocell is stored in the network, and if the call is placed through the femtocell, the location of the femtocell is used to determine the location of the mobile device. |
160 |
Measurement Systems and Methods for Fingerprinting Positioning |
US12864023 |
2008-10-06 |
US20100317372A1 |
2010-12-16 |
Torbjörn Wigren; Johan Bolin; Per Willars |
A system, computer software and method for collecting, in addition to position data, additional positioning data in a user terminal served by a communication network. The method includes initiating, by generating a message within the user terminal, collection of the positioning data, where the positioning data includes information based on which a physical location of the user terminal is determined; measuring, by the user terminal, at least one parameter related to the physical location of the user terminal in response to the message; producing, within the user terminal, measurement reports that include the at least one parameter; selecting, within the user terminal, one or more measurement reports that were generated in response to the message generated by the user terminal; reporting the selected one or more measurement reports to an interface within the user terminal; and transmitting, from the interface, the reported one or more measurement reports to an external server or to the communication network. |