| 摘要 |
communications engineering; adaptive synchronous and asynchronous communication systems. SUBSTANCE: shaper has clock generator, two NOT gates, two OR gates, three resistors, two AND gates, three flip- flops, NOR gate, Walsh code shaping unit, orthogonal code sequence shaping unit, counter, modulo two adders, arithmetic unit, and multiple- frequency modulator. EFFECT: provision for on-line change of shaped signal length at same quantity and frequency band. 7 cl, 11 dwg
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