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Implicit resource allocation in a communication system
A direct sequence spread spectrum (DSSS) system is a wideband system in which the entire frequency bandwidth of the system is available to each user all of the time. A DS...
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Access method for broadband and narrowband networks
The present invention is directed to an access method that allows an end-user device (mobile or stationary) a) to place stand-alone requests for access to a shared ...
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Communication terminal apparatus and control method thereof
It is, therefore, an object of the present invention to provide a communication terminal apparatus which resolves the above-mentioned problem. It is another object of ...
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Mobile station for use in mobile radio systems
OF THE PREFERRED EMBODIMENTS The preferred embodiment shown in FIG. 1 has a mobile telephone 1 which, in general, interchanges communication information with a base ...
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Communications network and method
What is claimed is: 1. A communications network, said network comprising, in combination, a plurality of telephone transceiver units a small general purpose digital ...
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Wide band automatic frequency control circuit
An object of the present invention is to provide an enhanced automatic frequency control (AFC) circuit for a signal receiver. Another object of the invention is to ...
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Laser cutting of tubular articles
The subject invention is a method and apparatus for cutting composite tubes with a laser beam. A laser beam is divided into two components by a beamsplitter. In order to ...
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Test apparatus for telephone lines
OF THE INVENTION Depicted in FIG. 1 is a power source unit 20 of the invention for energizing a portion of a four wire pair telephone signal distribution network for ...
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Telephone switching system with switched line circuits
What is claimed is: 1. A telecommunications switching system including, a plurality of line interface circuits for coupling communications signals between channels ...
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Radio-controlled vehicle with RF noise elimination feature and with ultrasonic anti-collision means insensitive to mechanical shocks
What is claimed is: 1. A radio-controlled vehicle having a radio frequency receiver for receiving a radio frequency signal transmitted from a transmitter positioned ...
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