Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7652622 | Transfer of position information of mobile terminal The invention provides a method of combining satellite positioning system signals and position information derived from such signals in a mobile terminal, when these are available at a first location, with cellular communication signals and a method, system and appa... | 01/26/2010 |
| 7639179 | Transfer of position information to a mobile terminal The invention provides a method of combining satellite positioning system signals and position information derived from such signals in a mobile terminal, when these are available at a first location, with cellular communication signals and a method, system and appa... | 12/29/2009 |
| 7616152 | Relative position measurement method and relative position measurement system using satellites A positioning system wherein radio waves from a GPS satellite (4) are received by a reference station (1), the absolute position of which is already known, and a plurality of mobile stations (3) to perform relative positioning among particular s... | 11/10/2009 |
| 7609202 | Relative measurement method and relative measurement system using satellite A measuring system wherein radio waves from a GPS satellite (4) are received by a reference station (1) and a plurality of mobile stations (3) to perform relative measuring among particular stations, thereby measuring the shift amounts of the mo... | 10/27/2009 |
| 7595751 | Method for crosslinking multiple GPS devices A crosslinked positioning method sets one of the intercommunicated positioning devices as a master and the remaining ones as slaves through a crosslink allocation. The method includes the steps of searching several devices at the same time, receiving IDs and compari... | 09/29/2009 |
| 7589669 | Positioning system, terminal apparatus, terminal apparatus control method, terminal apparatus control program, and computer readable recording medium having the terminal apparatus control program recorded therein The terminal apparatus has: positioning vector information generating means for generating positioning vector information which indicates a passing direction and a passing speed, based on the satellite signals used when each item of the current position information ... | 09/15/2009 |
| 7564404 | Determining precise direction and distance to a satellite radio beacon The present invention discloses a device and method for precisely determining the direction and distance to a satellite radio beacon. In one embodiment, the disclosed device is used for SAR (search and rescue) of people in distress, upon activation of an emergency r... | 07/21/2009 |
| 7557748 | Methods and apparatus for measuring navigational parameters of a locomotive The present invention, in one aspect, is a method for determining motion and/or location parameters of a locomotive. One method embodiment includes steps of phase locking a pair of receivers having antennas at different locations on a locomotive to reference signals... | 07/07/2009 |
| 7538724 | Method and system for relative tracking Systems and methods for providing relative tracking for a user in an unprepared environment, e.g., in the field. A larger mobile unit, such as a truck, is tracked precisely in world coordinates using GPS and/or other tracking technology. A smaller mobile object or u... | 05/26/2009 |
| 7535415 | Image recording apparatus capable of recording position and direction information of object of shooting An image recording apparatus which records position information of a place of shooting an image of an object and direction information of the object relative to the recording apparatus. A shooting unit takes images of an object. A receiver receives data for position... | 05/19/2009 |
| 7525480 | Dynamic speed finding method A dynamic speed finding method to detect drive speed of a target, i.e., a speeding car, to serve as evidence in writing a traffic ticket is executed in the following steps: Step A: the position and speed of a speed finding object, i.e., a moving police car, are dete... | 04/28/2009 |
| 7492315 | Geofencing and route adherence in global positioning system with signals from fewer than three satellites Particular implementations are particularly useful in providing a system in which the hardware is more easily upgradable and new hardware functionality may be added without adding any new physical hardware. Through placement of an FPGA closely associated with the CP... | 02/17/2009 |
| 7482973 | Precision GPS driven utility asset management and utility damage prevention system and method A method and apparatus, including software, for the development and operational use of precise utility location and utility asset management information. Field-usable data sets may be produced that meet standards of accuracy and usability that are sufficient for use... | 01/27/2009 |
| 7482974 | RTK-GPS survey system The invention is directed to an RTK-GPS survey system. The survey system includes a server (9) in an IP-VPN communication network 10 for establishing communications between base stations (16 and 17) that transmit correction data and a rov... | 01/27/2009 |
| 7477185 | Method of tracking at least one mobile unit comprising integrated radio/pseudolite transceiver and laser detector by utilizing stationary self-positioning radio transceiver and stationary laser transmitter A method of tracking at least one mobile unit utilizing a radio and light based 3-D positioning system comprising a stationary self-positioning radio (pseudolite) transceiver, a stationary laser transmitter positioned in a location with known coordinates, a wireless... | 01/13/2009 |
| 7477184 | 3-D positioning system utilizing self-positioning radio transmitter and stationary laser transmitter A radio and light based 3-D positioning system comprising a stationary self-positioning radio (pseudolite) transceiver, a stationary laser transmitter positioned in a location with known coordinates, and at least one mobile integrated radio receiver (pseudolite)/las... | 01/13/2009 |
| 7460065 | RTK-GPS surveying system An RTK-GPS surveying system for surveying an object includes at least one satellite positioning device as a base station configured to send correction data, a plurality of satellite positioning devices as rover stations configured to receive the correction data, and... | 12/02/2008 |
| 7453395 | Methods and systems using relative sensing to locate targets A method for determining a position of a target is described that includes establishing a reference target position and a measuring location position and measuring a range to the target, an azimuth angle to the target, and an elevation angle to the target. The refer... | 11/18/2008 |
| 7450061 | Relative position measurement system using satellite A position measurement system for measuring displacement of an observation station viewed from a reference station by receiving radio waves from satellites by these stations, and performing relative position measurement between the stations, having: a short period d... | 11/11/2008 |
| 7444240 | Collision avoidance system having GPS enhanced with OFDM transceivers An object relative status determination system (54) for a vehicle (52) includes an orthogonal frequency domain modulation (OFDM) transceiver (56) that generates an object range signal (83). The system (54) may also include a global... | 10/28/2008 |
| 7439908 | Method and apparatus for determining smoothed code coordinates of a mobile rover Disclosed is a method for determining coordinates of a mobile rover. The method includes determining a vector of one-shot code coordinates of the mobile rover. The method also includes determining a vector of phase increments by determining full phase differences fo... | 10/21/2008 |
| 7433264 | Methods and systems for determination of vertical correction of observed reflection seismic signals Methods and systems for determining position of seismic sources and receivers are disclosed. Signals received by a first antenna are processed to determine its 3D coordinate position. Signals received by the first antenna and a second antenna are combined and proces... | 10/07/2008 |
| 7432854 | Simple device and method to return a user to a location A low-power location apparatus for returning to a user to a location including a system unit configured to compute a location using radio signals, a user interface unit having a display area and first and second buttons, a memory unit, and a computational unit confi... | 10/07/2008 |
| 7421243 | Method for playback of stored or broadcast content based on predicted location and/or attributes An apparatus includes a storage section that stores stored content, a content receiving section that receives content, a received content storage section that stores received content, and a playback section that plays back the stored content or the received content.... | 09/02/2008 |
| 7411545 | Carrier phase interger ambiguity resolution with multiple reference receivers A method to determine a relative position between antennae comprising generating phase carrier measurements for a carrier frequency and at least three antennae including a master antenna and other antennae, generating phase integer sets based on the phase carrier me... | 08/12/2008 |
| 7407028 | Navigation-based safety restraint system and method A safety restraint system for use in a vehicle. The system includes a safety restraint component coupled to a navigational module. The navigational module is adapted to determine a location of the vehicle. The component is adapted to be actuated in response to the d... | 08/05/2008 |
| 7406311 | Method and apparatus for selectively operating satellites in tundra orbits A satellite system provides geosynchronous satellites in elliptical orbits in respective elliptical orbital planes separated by 120 degrees. The satellites traverse a common figure-eight ground track comprising northern and southern loops. The satellites are control... | 07/29/2008 |
| 7395075 | System and method for collecting continuous location updates while minimizing overall network utilization A wireless device and method for providing location updates to a wireless network includes determining a current location of the wireless device, comparing the current location to a second location and transmitting a location update, including presence information, ... | 07/01/2008 |
| 7389207 | System for dynamic and automatic building mapping The automatic building mapping system comprises a tracker module that can be carried by a user and an optional command module which operate to automatically map the rooms of a building as a user traverses the rooms of the building. The tracker module includes a tran... | 06/17/2008 |
| 7382313 | Method for absolute calibration of global navigation satellite system antennas Disclosed is an antenna calibration technique for performing absolute antenna calibration. An antenna to be calibrated is positioned in a first position, called a home position, and records data samples from received satellite signals. The antenna is then moved to a... | 06/03/2008 |
| 7382315 | System for and method of improving beyond line-of-sight transmissions and receptions A radio system can be configured as a beyond line-of-sight system and includes a number of antennas, a number of phase adjusters and a transmitter/receiver unit. Each of the phase adjusters can be associated with a respective antenna of the antennas. The antennas ca... | 06/03/2008 |
| 7375629 | Close proximity alert system and method A method for tracking location of a first class of user and a second class of user includes determining a location of a first class of user, updating a first class of user location database with the location of the first class of user, determining a location of a se... | 05/20/2008 |
| 7373223 | Global navigation satellite system landing systems and methods A method and system are provided for performing satellite-supported landings in CAT II/III type landing conditions. An exemplary system includes a communication component, a positioning system, a radar altimeter, and a processor. The communication component receives... | 05/13/2008 |
| 7370201 | Secure identification method between two radiofrequency network appliances In a radiofrequency network, such as a Bluetooth network, two devices are securely identified to one another for a communication session. One of the devices is designated as a master apparatus, and the other is a slave apparatus. An automatic identification process ... | 05/06/2008 |
| 7365679 | Positioning apparatus, control method of positioning apparatus, control program for positioning apparatus, and computer-readable recording medium having control program for positioning apparatus recorded therein A positioning apparatus that measures a current position by using measurement basis codes carried on satellite waves from a plurality of positioning satellites includes: a first phase error information generating unit that generates first phase error information ind... | 04/29/2008 |
| 7363147 | Navigation device and method for determining orientation of vehicle A vehicle includes an acceleration sensor that generates an output of an acceleration in a direction of the acceleration sensor. The output of the acceleration includes information on an orientation of the acceleration sensor relative to the vehicle. A method for de... | 04/22/2008 |
| 7359038 | Passive determination of ground target location Ground targets can be passively identified on uneven terrain from an observation point elevation above a known reference point, a line-of-sight inclination angle, an azimuth angle and a digital terrain elevation database wherein actual elevations of surrounding lati... | 04/15/2008 |
| 7359716 | Location based service (LBS) system, method and apparatus for authorization of mobile station LBS applications A system, method and apparatus for providing location services whereby location determination and location disclosure are treated as separate and independent processes. Location determination may be performed (as necessary) via a first set of network entities to obt... | 04/15/2008 |
| 7350594 | System and method for tracking and communicating with a boring tool A system for determining the location of and communicating with a downhole tool assembly. A tracker assembly comprises a vertical transmitting antenna, a plurality of receiving antennas, and a processor. The downhole tool assembly has a beacon assembly comprising a ... | 04/01/2008 |
| 7352322 | GPS-based positioning system for mobile GPS terminals The present invention discloses a GPS system that uses call-processor intelligence to determine the mode of operation of a GPS receiver located in a GPS terminal. The modes are selected based on the availability of network facilities, the GPS information that can be... | 04/01/2008 |