Patent
Global positioning system course acquisition code receiver
TLDR
In this article, a GPS satellite receiver is disclosed in which the frequency of the received satellite signal is down converted in a single step by a balanced mixer driven by a half-frequency local oscillator.Abstract:
A GPS satellite receiver is disclosed in which the frequency of the received satellite signal is down converted in a single step by a balanced mixer driven by a half-frequency local oscillator and the down-converted satellite signal is converted from analog-to-digital form by a hard limiter.read more
Citations
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Patent
Adaptive pattern recognition based control system and method
TL;DR: An adaptive interface for a programmable system, for predicting a desired user function, based on user history, as well as machine internal status and context, is presented for confirmation by the user, and the predictive mechanism is updated based on this feedback as mentioned in this paper.
Patent
Cellular telephone system that uses position of a mobile unit to make call management decisions
Everett Dennison,Timothy J. Duffy,Gregory T Pauley,Scott L. Jones,Albert H. Pharis,Warren P. Williamson +5 more
TL;DR: In this article, a cellular telephone system includes a plurality of cell sites and a mobile telephone switching office, and call management, including selection of a cell site most appropriate for a call associated with a mobile unit, are made based on the geographic location of the mobile unit as opposed to the strength of signal associated with the call.
Patent
Vehicle locating and communicating method and apparatus
TL;DR: In this paper, a method and apparatus for locating and communicating with vehicles is provided, including at least one mobile cellular unit connected to a microprocessor and installed within a vehicle, where the microprocessor interrogates the mobile unit to obtain location information from an overhead message stream transmitted from cellular telephone transmitter sites.
Patent
Vehicle tracking system employing global positioning system (GPS) satellites
Alison K. Brown,Mark A. Sturza +1 more
TL;DR: In this article, a tracking system employing global positioning system (GPS) satellites provides extremely accurate position, velocity, and time information for vehicles or any other animate or inanimate object within any mobile radio communication system or information system, including those operating in high rise urban areas.
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Data messaging in a communications network
TL;DR: In this paper, a cellular transceiver equipped with a mobile identification number (MIN), electronic serial number (ESN), or other identifier is attached to a truck trailer or a monitoring station located within a communications network.
References
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Patent
Correlation system for global position receiver
TL;DR: In this paper, a digital receiver for receiving and interpreting navigational data in the global position system comprising faster-than-real-time correlators for correlating the code portions of individual signals with matching codes stored in memory is presented.
Patent
Self-synchronization circuit for a FFSK or MSK demodulator
Rudi deBuda,Charles E. Jagger +1 more
TL;DR: In this paper, the self-synchronization circuit splits the incoming signal into two circuit paths where the signals are frequency shifted by a frequency signal equal to the carrier frequency so as to provide an in-phase signal in one circuit path and a quadrature signal in the other circuit path.
Patent
Pseudo-random-number-code-detection and tracking system
William M. Bowles,Duncan B. Cox +1 more
TL;DR: In this article, a pseudo-random number code detection and tracking system using a closed loop system was proposed, where a detector having a non-linear response characteristic is responsive to a coded received signal and to a locally generated coded signal to produce an error signal.
Patent
Wideband image terminated mixer
TL;DR: In this paper, a wideband image terminated mixer is described, in which an input signal is split into two parts which are fed to separate mixers supplied with local oscillations from a single oscillator.
Journal ArticleDOI
Millimeter-Wave Receivers with Subharmonic Pump
TL;DR: In this paper, a hybrid integrated downconverter with a Schottky-barrier diode pair and a stripline conductor pattern has been proposed, which is linearly scaled from an optimized 5-GHz model.