专利名称：Multiplex communication system employing pul code modulation
发明人：James O. Edson,Theodore F.
地藏王菩萨经>军训体会
自由落体pptGleichmann,Charles O. Mallinckrodt
申请号：US02/675901
申请日：19460611
公开号：US04396801A消灭
公开日：
19830802
专利内容由知识产权出版社提供
摘要：1. In a multichannel communication system in which the intelligence waves are transmitted by pul code modulation, means for producing a plurality of ries of puls interleaved in their time of occurrence and the puls of each ries being modulated in duration in proportion to successive samples of the intelligence wave of a corresponding channel, a source of oscillations of constant frequency, a gate controlled by the duration modulated puls for transmitting oscillations from said source for the duration of each of said puls, a binary counter having a plurality of tandem connected stages each of two conditions of stability, means for supplying to said counter the oscillations transmitted by said gate, a storage circuit for each stage of said binary counter except the first, a switching circuit connecting each of said storage circuits to the corresponding stage of the binary counter to supply to the storage circuit an electrical quantity under control of the condition of stability of the respective counter stage, a timing circuit for producing a quence of puls corresponding to the pul intervals of each pul code group, a pul circuit under control of the first stage of said counter, connections for supplying the first pul of each of said quences to said pul circuit to
电针
心光render it operative for transmitting a pul when the first stage of said counter is in a predetermined one of said conditions of stability, other connections for supplying said first pul of each of quences to said switching circuits for registering on said storage circuit the condition of stability of the respective counter stage, a pul circuit under control of each of said storage circuits, and connections for supplying to the last-mentioned pul circuits in succession corresponding subquent puls of each of said quences to render the pul circuits operative for transmitting a pul under control of the condition of the corresponding storage circuit.
议论文论据素材
申请人：BELL TELEPHONE LABORATORIES, INCORPORATED形容长江的诗句
代理人：W. F. Simpson,G. C. Lord,Daniel D. Dubosky
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