Importance

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Abstract

In a time division multiple access system comprising a central station and a plurality of substations, a subsidiary analog signal is sampled at a sampling circuit of each substation M times during each frame period to produce a succession of sampled pulses. A group of M sampled pulses is located by a substation delay circuit in each up-link burst assigned to each substation. Responsive to an up-link succession including each up-link burst, the central station reproduces the sampled pulse group from each up-link burst into a reproduced group of M reproduced pulses by central station sampling pulses synchronized with the M sampled pulses. The M reproduced pulses are rearranged by a central station delay circuit into sampled pulse reproductions appearing M times in each frame period. The sampled pulse reproductions are desampled into the subsidiary signal. The number of M may be equal to or greater than one.

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First Claim