Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8150651 | Acceleration compensated inclinometer An inclinometer using a speedometer and a forward-looking accelerometer for measuring inclination angle. ... | 04/03/2012 |
| 7940834 | Signal receiver using data bit search in alternating time segments A GNSS receiver and method using alternating “A” and “B” time segments for a reception time length of two or more data bits. The GNSS signal in an “A” time period comprising the “A” time segments is integrated for determining “A” magnitudes corre... | 05/10/2011 |
| 7791534 | GNSS time fraction calibration of a real time clock A generic navigation satellite system (GNSS) signal receiver having a fast time to first fix by calibrating a low power always-on real time clock (RTC). The receiver includes an RTC calibrator having a fraction calculator. The RTC calibrator may also include a time ... | 09/07/2010 |
| 7348921 | GPS receiver using stored navigation data bits for a fast determination of GPS clock time A GPS receiver having a fast method for determining GPS clock time. The GPS receiver includes a signal processor for receiving GPS signals from GPS satellites and detecting current GPS data bits carried by the respective GPS signals, a chapter memory for storing a b... | 03/25/2008 |
| 7295911 | Construction machine having location-based project data files A construction machine for automatically receiving selected project data files based on the geographical location and identification of the machine. The machine includes an auto-start transceiver for transmitting the local location and identification of the machine ... | 11/13/2007 |
| 7266144 | Data bit transition determination method and apparatus for spread spectrum signals Apparatus and methods for determining the timing of the data bit transitions. “N” assumptions of data bit transitions are used for determining N integrations of an incoming spread signal for data bit time periods where N is the data bit time period divided by th... | 09/04/2007 |
| 7245999 | Construction machine having location based auto-start A construction machine for automatically receiving selected project data files based on the geographical location and identification of the machine. The machine includes an auto-start transceiver for transmitting the local location and identification of the machine ... | 07/17/2007 |
| 7230568 | GPS receiver having a phase lock loop hold off A global navigation satellite system (GNSS) receiver using phase lock loops for strong GNSS signals and automatic frequency control (AFC) loops for weak GNSS signals on a satellite-by-satellite basis. The phase lock loops or the AFC loops associated with particular ... | 06/12/2007 |
| 7227496 | GPS rover station having position dithering for controlling accuracy of secure positions A positioning system or synthetic phase processor or rover station for providing high integrity positions with graduated accuracies. The positioning system includes one or more real time kinematic (RTK) reference stations for receiving GPS signals at established ref... | 06/05/2007 |
| 7215167 | Low noise microwave frequency synthesizer having fast switching A frequency synthesizer and a method using a first seed word and a variable clock rate derived from a second seed word for synthesizing a signal frequency. An accumulator accumulates the first seed word at the variable clock rate with a remainder word for updating a... | 05/08/2007 |
| 7208990 | Low noise microwave frequency synthesizer having loop accumulation A frequency synthesizer and a method for synthesizing a microwave output signal frequency. The synthesizer uses a reference signal having a variable frequency and accumulation in feedback of a phase locked loop for synthesizing a microwave output frequency. The feed... | 04/24/2007 |
| 7202813 | GPS reference system providing a synthetic offset vector for dithering a rover station position A positioning system or synthetic phase processor or rover station for providing high integrity positions with graduated accuracies. The positioning system includes one or more real time kinematic (RTK) reference stations for receiving GPS signals at established ref... | 04/10/2007 |
| 7197064 | Signal receiver having signal acquisition at low signal strength using interleaved time segments A GPS receiver and method using alternating “A” and “B” integration time segments. The polarities of certain GPS data bits are known beforehand and their expected reception times are known. The GPS signal in 10 millisecond “A” time segments and “B” t... | 03/27/2007 |
| 7173943 | Protocol analyzer and time precise method for capturing multi-directional packet traffic An apparatus and method for selecting and recording multi-directional communication packet traffic in a compact manner in realtime while maintaining relative time between the selected packets passing in one direction and the selected packets passing in another direc... | 02/06/2007 |
| 7162163 | Differential complex modulation optical receiver having compensation of Kerr effect phase noise A method and apparatus for reducing nonlinear phase noise that is induced in an optical transmission system by the interaction of optical amplifier noise and Kerr effect. The apparatus includes an intensity-scaled nonlinear phase noise compensator. The phase noise c... | 01/09/2007 |
| 7161977 | Receiver having a ratio-based signal acquisition method A GPS receiver having a ratio-based signal acquisition method. The GPS receiver has a tentative signal acquisition when a first ratio of the largest GPS signal correlation value to the second largest in a first time period exceeds a selected qualification ratio. The... | 01/09/2007 |
| 7158885 | Remote subscription unit for GPS information A GPS information service system for providing supplemental GPS correction and signal acquisition information to subscribers. A GPS information server broadcasts GPS aiding information encrypted with subscription keys. A remote GPS subscription unit receives the key... | 01/02/2007 |
| 7133620 | Optical FSK receiver having compensation for Kerr effect phase noise A method and apparatus for reducing nonlinear phase noise that is induced in an optical transmission system by the interaction of optical amplifier noise and Kerr effect. The apparatus includes an intensity-scaled non-linear phase noise compensator. The phase noise ... | 11/07/2006 |
| 7089113 | Subscription system for GPS information A GPS information service system for providing supplemental GPS location correction and signal acquisition information to subscribers. A GPS information server broadcasts GPS information encrypted with subscription keys. Remote GPS subscription unit receive the key ... | 08/08/2006 |
| 7079075 | GPS rover station for synthesizing synthetic reference phases for controlling accuracy of high integrity positions A positioning system or synthetic phase processor or rover station for providing high integrity positions with graduated accuracies. The positioning system includes one or more real time kinematic (RTK) reference stations for receiving GPS signals at established ref... | 07/18/2006 |
| 7020555 | Subscription GPS information service system A GPS information service system for providing supplemental GPS correction and signal acquisition information to subscribers. A GPS information server broadcasts GPS aiding information encrypted with subscription keys. A remote GPS subscription unit receives the key... | 03/28/2006 |
| 7007527 | Electrified cylindrical lock An electrified cylindrical lock having a reversible solenoid that can be easily changed over between active push and active pull. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The coil has ... | 03/07/2006 |
| 7003993 | Electrified cylindrical lock An electrified cylindrical lock having a reversible solenoid that can be easily changed over between fail safe and fail secure. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The latch membe... | 02/28/2006 |
| 6990140 | Signal receiver using coherent integration in interleaved time periods for signal acquisition at low signal strength A GPS receiver and method using alternating “A” and “B” integration time segments. The polarities of certain GPS data bits are known beforehand and their expected reception times are known. The GPS signal in 10 millisecond “A” time segments and “B” t... | 01/24/2006 |
| 6970500 | Method for determining data bit transitions for a low level spread spectrum signal Apparatus and methods for determining the timing of the data bit transitions. “N” assumptions of data bit transitions are used for determining N integrations of an incoming spread signal for data bit time periods where N is the data bit time period divided by th... | 11/29/2005 |
| 6915084 | Optical compensator having compensation for Kerr effect phase noise A method and apparatus for reducing nonlinear phase noise that is induced in an optical transmission system by the interaction of optical amplifier noise and Kerr effect. The apparatus includes an intensity-scaled nonlinear phase noise compensator. The phase noise c... | 07/05/2005 |
| 6898234 | Signal receiver for integrating and combining integrations in alternating time segments for signal acquisition at low signal strength A GPS receiver for integrating a GPS signal separately in a series of “A” type and “B” type time segments, the “A” segments alternating with the “B” time segments; combining the squares of the magnitudes of “A” time segment integrations correspon... | 05/24/2005 |
| 6879913 | 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... | 04/12/2005 |
| 6856221 | Reversible solenoid A reversible solenoid that can be easily changed over between active push and active pull. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The coil has a front end and a rear end. The front c... | 02/15/2005 |
| 6826639 | Hierarchical display of multilevel protocol for communication data A hierarchical display of protocol layers for communication data. Fields of the communication data are converted into field cells where each field cell has a text field and a field descriptor. The field cells for each protocol layer are arranged by an interpreter in... | 11/30/2004 |
| 6816739 | Radio system attenuator for an antenna A radio system having a hub transceiver and a plurality of customer premise transceivers at different distances from the hub transceiver. Each of the customer premise transceivers includes an antenna for transmitting an upstream radio signal to the hub transceiver a... | 11/09/2004 |
| 6813500 | Cellular telephone using pseudolites for determining location A cellular telephone having a global positioning system (GPS) receiver using a blended combination of GPS signals from GPS satellites and GPS pseudolites for determining a location. The cellular transceiver receives wireless downlink cellphone signals having acquisi... | 11/02/2004 |
| 6804472 | Transmitter and method using half rate data streams for generating full rate modulation on an optical signal An optical duobinary transmitter. The transmitter uses a half-rate precoder, half-rate non-linear modulation drive circuits and a multiplex modulator for generating duobinary modulation on an optical signal from which full-rate data can be detected without decoding.... | 10/12/2004 |
| 6757318 | Apparatus and method for synchronizing with a communication network by shadowing a page response connection to the network A method and apparatus for synchronizing with a network without connecting to the network by shadowing a slave device while a master device connects the slave device to the network. The master device maintains a system clock time. The master and slave devices exchan... | 06/29/2004 |
| 6742079 | File system for avoiding loss of data An MS DOS and MS WINDOWS compatible file system for avoiding loss of data in a memory unit if power is interrupted while new data is being written. The file system uses an ATA write command for erasing a data reserve sector and writing the modified data including th... | 05/25/2004 |
| 6732557 | Electrified mortise lock having a solenoid cradle An electrified mortise lock where the same method and articles can be used for electrifying the mortise locks of many manufacturers and styles. The electrified mortise lock includes a solenoid and a cradle. The cradle includes a frame for embracing the solenoid and ... | 05/11/2004 |
| 6731672 | GPS receiver having improved signal acquisition at a low signal to noise ratio A GPS receiver having a fast acquisition of a GPS signal having a low signal-to-noise ratio. The GPS receiver uses an adjustable local frequency for iteratively downconvertig raw GPS signal samples to baseband GPS signal code data, combining a plurality of code epoc... | 05/04/2004 |
| 6727848 | Global positioning system using almanac data for a fast time to first fix A system using coarse GPS orbital parameters for providing a precise GPS location. The system includes a GPS reference receiver and a GPS user receiver. Coarse locations-in-space of GPS satellites are computed from almanac or old ephemeris data. In a first embodimen... | 04/27/2004 |
| 6724285 | Monitor hinge A monitor hinge having a magnet plug and a magnetic switch plug. The magnet plug and magnetic switch plug have countersink heads to seat in the hinge fastening holes and insert through juxtaposed hinge holes into drilled holes in the door and wall jambs. ... | 04/20/2004 |
| 6718395 | Apparatus and method using an inquiry response for synchronizing to a communication network A method and apparatus for synchronizing with communication traffic in a BLUETOOTH network without joining the network. The apparatus transmits an inquiry signal and receives an inquiry response signal having a coarse system clock time. The apparatus uses the coarse... | 04/06/2004 |
