Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 8085201 | System for determining position over a network 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 ... | 12/27/2011 |
| 7738606 | System and method for making correlation measurements utilizing pulse shape measurements A receiver utilizes an array of complex accumulation registers to form an image of the average chip shape or, as appropriate, chip edge shape, of the received signal over a specified period of time as a time series of complex power measurements. The receiver divides... | 06/15/2010 |
| 7738536 | Apparatus for and method of making pulse-shape measurements A receiver includes a pre-correlation filter that forms an image of the average chip shape of a received signal over a specified period of time. The filter includes an array of complex accumulation registers that accumulate measurements that are associated with sign... | 06/15/2010 |
| 7671791 | GPS receiver for use with differential-GPS signals The present disclosure provides a system for converting differential-GPS signals to a format suitable for input to a conventional GPS receiver and combining the converted signal with GPS ranging signals. The combined signals are provided to a conventional GPS receiv... | 03/02/2010 |
| 7668657 | Seismic measuring system including GPS receivers A system for determining positions of fixed-position GPS receives that have restricted views of the sky includes a data recording and control center, and one or more base GPS receivers with associated antennas with a substantially unrestricted views of the sky. The ... | 02/23/2010 |
| 7668228 | Apparatus for and method of correlating to rising chip edges A receiver for position-determining ranging signals transmitted by earth-orbiting satellites uses a set of accumulators, each of which accumulates signal samples corresponding with a position along the rising edges of incoming PRN pulses. An MMT processor calculates... | 02/23/2010 |
| 7656349 | Enhancement of GNSS position determination in poor signal propagation environments A system, for enhancing location estimates by movable rovers that use receivers for processing ranging signals from orbiting satellites, including a fixed base station that serves as a ranging signal source for the rovers' receivers. The base station may also determ... | 02/02/2010 |
| 7528770 | Method for positioning using GPS in a restrictive coverage environment A system consisting of a base GPS receiver with a clear view of the sky, one or more remote GPS receivers with restricted views of the sky and a processing center that batch processes range information provided by the GPS receivers determines the positions of the re... | 05/05/2009 |
| 7526386 | Seismic measuring system including GPS receivers A deformation monitoring system includes a data recording and control center, one or more base receivers with associated antennas that have a substantially unrestricted view of the sky and acquire and track satellite signals used for global positioning and slave rec... | 04/28/2009 |
| 7501978 | Short-distance ranging system A system for ascertaining the range from an interrogator to one or more transponders comprises an interrogator that transmits an RF carrier that is received by each transponder, the energy in the received carrier being used to charge up a storage capacitor in each s... | 03/10/2009 |
