公开(公告)号：US3689913A

公开(公告)日：1972-09-05

申请号：US3689913D

申请日：1970-04-17

Applicant: RCA CORP

Inventor： NEWCOMB GILBERT SHELTON

IPC: G11B20/14 ,  H04L25/49 ,  G06F3/00

CPC classification number: G11B20/1423 ,  H04L25/4904

Abstract: An encoded binary signal which is self clocking and absolute phasing is provided by a method which provides a first pulse manifesting a first binary value having all transitions of the same predetermined polarity at bit interval boundaries and transitions of the opposite polarity intermediate the bit interval boundaries. A second pulse is provided having no transitions intermediate the interval boundaries and at least one transition in coincidence with one interval boundary thereof having the same predetermined polarity, the second pulse manifesting a second binary value. The presence or absence of a transition within a bit interval determines the binary value manifested by the pulse occuring in that interval and the time of occurrence of all transitions of the predetermined polarity identifies the time of occurrence of the interval boundaries of the signal.

Abstract translation: 通过一种方法来提供自定时和绝对定相的编码二进制信号，该方法提供表现出具有在比特间隔边界具有相同预定极性的所有转换的第一二进制值的第一脉冲，以及位间隔边界之间的相反极性的转变。 提供第二脉冲，其中没有间隔边界之间的过渡和与具有相同预定极性的一个间隔边界一致的至少一个跃迁，第二脉冲表现出第二二进制值。 位间隔内的转换的存在或不存在确定了在该间隔中出现的脉冲表现的二进制值，并且预定极性的所有转变的出现时间标识出信号的间隔边界的出现时间。