Time diversity data transmission apparatus

Details Time diversity data transmission apparatus Time diversity data transmission apparatus

1975-07-07

1977-01-04

Richardson, Robert L.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

325 39, 325 40, 325 42, 325 56, 325 60, 343204, H04B 706

Patent

active

040016927

ABSTRACT:
An asynchronous, time diversity transmission apparatus including a data encoder at a transmitting location and an error-correcting data decoder at a receiving location for overcoming the effects of signal fading, impulsive noise and interference. The asynchronous data encoder encodes a single input data stream into three or more redundant, parallel data outputs having time diversity introduced by successive delays. The data outputs are frequency multiplexed and propagated over a transmission circuit. Received data is demultiplexed and input to the data decoder where it is processed to remove the time diversity. Three or more outputs from the decoder are combined to form a single, error-corrected data output.

REFERENCES:
patent: 3195048 (1965-07-01), Adams
patent: 3409875 (1968-11-01), De Jager et al.
patent: 3422357 (1969-01-01), Browne
patent: 3526837 (1970-09-01), Zegers et al.
patent: 3842352 (1974-10-01), Cote

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