公开(公告)号：US5331639A

公开(公告)日：1994-07-19

申请号：US609647

申请日：1990-11-06

申请人： Masahiro Takatori ,  Yukio Nakano ,  Keiichi Ishida ,  Takashi Mori ,  Yoshihiro Ashi ,  Tadayuki Kanno ,  Hiromi Ueda

发明人： Masahiro Takatori ,  Yukio Nakano ,  Keiichi Ishida ,  Takashi Mori ,  Yoshihiro Ashi ,  Tadayuki Kanno ,  Hiromi Ueda

IPC分类号： H04J3/00 ,  H04J3/06 ,  H04L7/00 ,  H04Q11/04

CPC分类号： H04J3/0623 ,  H04J2203/0089

摘要： A method and an apparatus for converting a frame phase of a signal having a frame structure specified in the CCITT recommendations which contains N (N: an integer 2 or above) pieces of frames applied with time-division/multiplex, in which the N pieces of frames are given to N pieces of memories, respectively, a write address is given independently to each memory so that the N pieces of frames are written in the respective memories in a same phase as the phase in the signal, a read address is given independently to each memory so that the N pieces of frames are read out of the respective memories in a same phase as the write phase, a difference between a write address and a read address in each memory is set identical under an initial state, and justification is executed for a frame which is read out of the memory in accordance with a difference between existing write address and read address in each memory, whereby to perform frame phase conversion while maintaining relative phase among respective frames.

摘要翻译： 一种用于转换具有CCITT建议中指定的帧结构的信号的帧相位的方法和装置，其包含以时分复用应用的N（N：整数2或以上）帧，其中N个 分别给予N个存储器，每个存储器独立地给出写入地址，使得N个帧以与信号中的相位相同的相位写入各个存储器中，给出读取地址 独立于每个存储器，使得N个帧在与写入相位相同的相位中从各个存储器读出，每个存储器中的写入地址和读取地址之间的差在初始状态下被设置为相同，并且对齐 根据存储器中的现有写入地址和读取地址之间的差异从存储器中读出的帧被执行，由此执行帧相位转换，同时保持相对相位 g各个框架。