| 摘要 |
The invention relates principally to a receiver. The invention relates principally to a receiver capable of separating, demodulating and decoding modulated wave transmissions using long pulses on a plurality of frequencies 31, 32, 33, ... 3N. Advantageously, each channel is orthogonal to the others, two consecutive frequencies being 1/T apart, T being the duration of each useful transmission interval. The invention applies to the reception of radiophone and television transmissions, to the devices for analog and/or digital information reception, to communications between computers, to telephone communications between exchanges, to telephone communications between radio telephones and communications stations, to radio communications between earth stations and satellites, to communications between satellites, to acoustic communications in air and/or in water and to the production of local computer networks. The invention is particularly well suited to the production of high fidelity radiophone receivers as well as to the production of high definition television (HDTV) receivers and/or digital television receivers. <IMAGE>
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