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Communications system
What is claimed is: 1. A radio communications system in which each of a plurality of transmission means is capable of transmitting transmissions on each of a ...
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Method and apparatus for over-the-air programming of telecommunication services
The present invention provides a method for enabling a service provider to provide telecommunication service updates to mobile stations without active involvement of the ...
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Authenticating the identity of an authorized person
The present invention seeks to provide a solution to the severe difficulties associated with card and other fraud. According to the present invention there is provided a ...
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Synthesis of improved zero-impedance converter
An improved zero-impedance converter embodying the principles of the invention applied to synthesizing electric motor drive systems of infinite disturbance rejection ...
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Low noise digital to signal interval converter with audio applications
The present invention relates to digital-to-analog conversion. In particular, it has application to conversion of pulse code modulated signals, such as used in CDs and DV...
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Method and system for detecting in-band jammers in a spread spectrum wireless base station
The present invention encompasses a method and apparatus for providing real-time, constant detection of in-band jammers with negligible impact on base station cost. Such ...
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Method and apparatus for scanning and for electronic processing of thermal pictures
The objects of the present invention are achieved by providing that one inventive characteristic feature is that the scanning speed is selected at right angles to the ...
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Automatic vehicle identification system capable of vehicle lane discrimination
A method for identifying an object and determining the location of an object is disclosed. The method includes the steps of: focusing a first directional antenna on a ...
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Method of polling second stations for functional quality and maintenance data in a discrete multitone spread spectrum communications system
In accordance with this invention, a highly bandwidth-efficient method for transmitting and receiving information is implemented. In one aspect of the invention, a ...
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Steerable antenna and receiver interface for terrestrial broadcast
The present invention is directed to methods and apparatus for implementing and controlling steerable antennas. Various embodiments of the invention are directed to ...
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