Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 6760647 | Socially interactive autonomous robot A robot that is capable of substantially autonomous movement includes a processing device, a memory, and a mobility structure controlled by the processing device. The processor directs the robot to move with any predetermined safe area having a boundary and a refere... | 07/06/2004 |
| 6760664 | Autonomous navigation system based on GPS and magnetometer data This invention is drawn to an autonomous navigation system using Global Positioning System (GPS) and magnetometers for low Earth orbit satellites. As a magnetometer is reliable and always provides information on spacecraft attitude, rate, and orbit, the magnetometer... | 07/06/2004 |
| 6760663 | Solution separation method and apparatus for ground-augmented global positioning system Global positioning systems (GPSs) estimate positions of vehicles based on signals from earth-orbiting satellite transmitters. For accuracy and reliability reasons, these systems have traditionally not be used for critical phases of aircraft navigation and guidance, ... | 07/06/2004 |
| 6756938 | Satellite positioning system receivers and methods therefor Methods for determining the location of a satellite positioning system receiver by determining an estimated location of the receiver (200), transmitting the estimated location of the receiver to a network, determining a reference altitude of the receiver at t... | 06/29/2004 |
| 6751546 | Information processing system, information device and information processing device The information processing system includes an information device, and an information processing device, wherein the information device further includes a transfer unit which outputs a transfer request of transferring predetermined data processed by the information d... | 06/15/2004 |
| 6748324 | Method for determining location information A method is provided for estimating relative location information for wireless devices. Individual estimates are obtained from two or more alternative means that determining the relative location, such as range information, of first and second wireless devices with ... | 06/08/2004 |
| 6735522 | Position measurement device, terminal provided therewith, and position measurement method A position measurement device measures a position even in the case where the number of satellites necessary for position measurement with GPS cannot be ensured. In the case where the number of satellites necessary for position measurement cannot be acquired, a first... | 05/11/2004 |
| 6732050 | Two-stage interacting multiple models filter for use in a global positioning system A method, corresponding apparatus and corresponding system for determining a dynamical quantity of a receiver of signals conveying information useful in estimating the dynamical quantity, the method including the steps of: providing a single-point solution, by solvi... | 05/04/2004 |
| 6725157 | Indoor GPS clock An indoor GPS clock using GPS signals lower that −143 dBm for issuing disciplined frequency and time standard signals. The indoor GPS clock includes a correlation machine using long integration periods for enabling the indoor GPS clock to operate with low signal l... | 04/20/2004 |
| 6718232 | Robot device and behavior control method for robot device A robot apparatus causes the emotion in a feeling part (130) to be changed based on the information acquired by a perception part (120) to manifest the behavior of information acquisition as autonomous behavior. The robot apparatus includes a behavior ... | 04/06/2004 |
| 6708115 | Vehicle speedometer A speedometer for a vehicle capable of displaying a vehicle speed and a traveling distance highly accurately and of providing highly accurate speed information to a system utilizing the speed information is provided. A speedometer is connected to a navigation device... | 03/16/2004 |
| 6704649 | Satellite navigation system of which map data are partially updateable In a satellite navigation system, map data stored in a server is partially updateable. The map data is produced to be divided into a plurality of sets of map data mutually-independent set by set, and stored in the server. The map data is updated every set... | 03/09/2004 |
| 6704651 | Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris A method and apparatus for distribution and delivery of global positioning system (GPS) satellite telemetry data using a communication link between a central site and a mobile GPS receiver. The central site is coupled to a network of reference satellite r... | 03/09/2004 |
| 6704650 | Technique for accurate distance and velocity calculations using the global positioning system (GPS) A method of determining the distance traveled during an event by a mobile GPS receiver. The event comprises epochs. The method comprises receiving pseudorange data comprised of one of pseudorange differences or range rates. Each pseudorange difference, in... | 03/09/2004 |
| 6704626 | Logistics system and method with position control A logistics system and method are mounted on a vehicle and utilize vehicle position control for logistics operations, such as loading and unloading material to and from the vehicle. The position control can be GPS-based and/or based on linear movement of ... | 03/09/2004 |
| 6704652 | Real time self differential global positioning system and method for a moving station in a local area, and terminal global positioning system using the same A terminal Global Positioning System (TGPS) adopting a real-time self Differential Global Positioning System (DGPS) is developed for positioning a moving station in a local area. This TGPS enables not only to minimize the error ranges without any addition... | 03/09/2004 |
| 6701253 | Total correction strategy A navigation-satellite receiver network comprises a server connected to the Internet to provide real-time correction information to clients. The server includes a GPS receiver that provides for tracking of a constellation of navigation satellites. When a ... | 03/02/2004 |
| 6697736 | Positioning and navigation method and system thereof A positioning and navigation method and system thereof can substantially solve the problems encountered in global positioning system-only and inertial navigation system-only, such as loss of global positioning satellite signal, sensibility to jamming and ... | 02/24/2004 |
| 6694142 | Wireless terminal positioning method and apparatus In a wireless terminal position measuring method for estimating the position of a terminal using signals sent from at least three base stations accommodated by a cellular communication system, position of the terminal is estimates according to the triangu... | 02/17/2004 |
| 6694260 | Inertial augmentation for GPS navigation on ground vehicles An inertial compensation assembly suitable for use in a GPS based navigation system for a ground vehicle, in particular, an agricultural ground vehicle such as a tractor, combine, or the like, provides inertial augmentation to compensate GPS navigation in... | 02/17/2004 |
| 6687610 | Navigation apparatus, navigation method and information recording medium containing navigation program readable by computer There is provided a navigation apparatus capable of executing a guide corresponding to an inside structure of a building which even if a vehicle is running in the building. The apparatus determines whether or not a current position of the vehicle is locat... | 02/03/2004 |
| 6683564 | High-sensitivity satellite positioning system receivers and reception methods A navigation satellite receiver method determines what navData is on-hand, what level of time uncertainty exists, and what position uncertainty there is for the receiver at turn-on. Indoor and outdoor search engines are used that can vary their search win... | 01/27/2004 |
| 6681176 | Method and device for a detachable navigation system A faceplate including an antenna for receiving navigation signals, a processor electrically coupled to the antenna for determining a position, a display electrically coupled to the processor for displaying navigation information, and at least one input ar... | 01/20/2004 |
| 6678582 | Method and control device for avoiding collisions between cooperating robots A method of avoiding collisions between a robot and at least one other object such as another robot is provided in which the user does not need to make any provisions in a robot program for avoiding collisions and defining common work-areas. Furthermore, ... | 01/13/2004 |
| 6677858 | INTERNET-BASED METHOD OF AND SYSTEM FOR MONITORING SPACE-TIME COORDINATE INFORMATION AND BIOPHYSIOLOGICAL STATE INFORMATION COLLECTED FROM AN ANIMATE OBJECT ALONG A COURSE THROUGH THE SPACE-TIME CONTINUUM An Internet-based method of and system for monitoring space-time coordinate information and biophysiological state information collected from an animate object moving along a course through the space-time continuum. The Internet-based system comprise a wi... | 01/13/2004 |
| 6671582 | Flexible agricultural automation Agricultural operations by applying flexible manufacturing software, robotics and sensing techniques to agriculture. In manufacturing operations utilizing flexible machining and flexible assembly robots, work pieces flow through a fixed set of workstation... | 12/30/2003 |
| 6671620 | Method and apparatus for determining global position using almanac information In a satellite global positioning system, satellite acquisition and location assistance is based upon shared information between a GPS receiver and a remote server. Satellite position is predicted by satellite almanac data.... | 12/30/2003 |
| 6671649 | Position calculation method and position calculation apparatus A position calculation method that calculates the correct position of a terminal even when errors are not distributed symmetrically for positive and negative values, by calculating the position of a terminal using the delay time of received signals. The m... | 12/30/2003 |
| 6668218 | Method and system for target localization The present inventions comprise a method of estimating a minimum range for a target with respect to a first point of interest, independent of actual, range to the target, comprising obtaining three bearing data points; using the three bearing data points ... | 12/23/2003 |
| 6662108 | Method and apparatus for improving a vehicle safety system using a transponder and GPS The present invention provides a method for operating a pre-crash sensing system for a first vehicle having a global positioning system (GPS). The method includes receiving an acquired GPS satellite identifier and generating first vehicle location data wi... | 12/09/2003 |
| 6662107 | Calibrated real time clock for acquisition of GPS signals during low power operation Power is conserved in a Global Positioning System (GPS) receiver by shutting down selected components during periods when the GPS receiver is not actively calculating the GPS receiver location. A low power time keeping circuit accurately preserves GPS tim... | 12/09/2003 |
| 6661372 | Client-server based remote locator device A user accesses a server using a client. The client provides an identification code which serves to uniquely identify a remote sensor. The remote sensor is capable of providing information related to its position. The server interrogates the remote sensor... | 12/09/2003 |
| 6658354 | Interruption free navigator An interruption free navigator includes an inertial measurement unit, a north finder, a velocity producer, a positioning assistant, a navigation processor, an altitude measurement, an object detection system, a wireless communication device, and a display... | 12/02/2003 |
| 6658352 | Navigation system The present invention is directed to a navigation apparatus capable of performing a proper voice guidance even in such a case that signals transmitted from GPS satellites cannot be received, but a current location cannot be judged. The navigation apparatu... | 12/02/2003 |
| 6658353 | VEHICLE NAVIGATION APPARATUS PROVIDING RAPID CORRECTION FOR EXCESSIVE ERROR IN DEAD RECKONING ESTIMATES OF VEHICLE TRAVEL DIRECTION BY DIRECT APPLICATION OF POSITION AND DIRECTION INFORMATION DERIVED FROM GPS POSITION MEASUREMENT DATA In a vehicle navigation apparatus having a control section which calculates relative vehicle positions and travel direction by dead reckoning calculations based on outputs from on-board sensors and periodically acquires GPS measurement data via a GPS rece... | 12/02/2003 |
| 6650285 | Method and apparatus for rapidly estimating the doppler-error and other receiver frequency errors of global positioning system satellite signals weakened by obstructions in the signal path Frequency-offset components are extracted from a set of digitized samples of signals transmitted by a satellite. The samples are squared to produce squared samples and decimated. The squared samples are auto-correlated to produce an auto-correlate, and th... | 11/18/2003 |
| 6647340 | Space based augmentation systems and methods using ionospheric bounding data to determine geographical correction source Systems, devices and methods are provided improving the accuracy, availability and integrity of GPS service. Specifically, the present invention provides a GPS device with the correction messages which are from the most accurate and desirable source while... | 11/11/2003 |
| 6643320 | Receiver for DS-CDMA signals A receiver for direct sequence spread spectrum code division multiple access signals (DS-CDMA) particularly for GPS signals includes a plurality of correlators. Each correlator includes variable level threshold circuits (29, 30) which follow integrate and... | 11/04/2003 |
| 6640189 | Method of improving satellite reacquisition performance for integrated GP/IG navigational systems A method of reacquiring a satellite signal within an integrated GP/IG navigation system includes detecting a loss of synchronization between a timing code in the satellite signal and a corresponding reference timing code. The method includes receiving pos... | 10/28/2003 |
| 6640106 | Method and system for verifying the position of a mobile station using checkpoints The present invention provides a method and wireless communication system (100) for verifying a position of a mobile station (102). The system (100) determines whether the mobile station (102) is located within a checkpoint area (130). If so, the system (... | 10/28/2003 |
