发明授权
- 专利标题： Code error detecting system in digital code transmission
- 专利标题（中）： 数字代码传输中的代码错误检测系统
-
申请号： US603901申请日： 1975-08-11
-
公开(公告)号： US3978406A公开(公告)日： 1976-08-31
- 发明人: Youichi Matsumoto , Seijiro Yokoyama , Tadao Shimamura
- 申请人： Youichi Matsumoto , Seijiro Yokoyama , Tadao Shimamura
- 申请人地址： JA Tokyo
- 专利权人： Nippon Electric Company, Ltd.
- 当前专利权人： Nippon Electric Company, Ltd.
- 当前专利权人地址： JA Tokyo
- 优先权： JA49-93001 19740814
- 主分类号： H04L27/00
- IPC分类号： H04L27/00 ; H04L1/00 ; H04L27/18 ; H04L27/20 ; H04L27/227 ; H04L1/10
摘要：
A code error detection system in a digital phase modulation communication system comprises on the transmitter side a first code train generator for generating a pseudo-random code train and a second code train generator for generating codes which are complementary to each other at n-bit intervals. A 4-phase phase modulator is driven by another code representative of the exclusive OR function of the pseudo-random and complementary codes.
公开/授权文献
- US5792046A Cammed retractor clamp 公开/授权日：1998-08-11
信息查询
