专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07864868B2 Method for detecting an octet slip 有权
标题翻译：检测八位字节滑移的方法
公开(公告)号：US07864868B2
公开(公告)日：2011-01-04
申请号：US10662122
申请日：2003-09-15
申请人： Juha Sarmavuori
发明人： Juha Sarmavuori
IPC分类号： H04B14/04
CPC分类号： H04B14/04
摘要： An efficient method and system for detecting frame slip in an inband signalling block in pulse code modulation. The effect of frame slip on the inband signalling block is that the bits following the frame slip are transferred from the signalling block into an adjacent block. The octet slip is detected by searching an error bit in a signalling block by comparing it to a sample block. If an error bit is found, an error count for the adjacent block starting from the error bit is calculated. If the error count is more than one, a second error bit of the signalling block is searched (26) and bits of the adjacent block after second error bit are verified (27). If bits of the adjacent block after the second error bit are not correct, the octet slip cannot be assumed (29). Otherwise the octet slip can be assumed by analyzing error count and error bits.
摘要翻译：一种用于在脉冲编码调制中检测带内信令块中的帧滑动的有效方法和系统。帧转移对带内信令块的影响是跟随帧滑移的位从信令块传送到相邻块。通过将信号块中的错误位与样本块进行比较来检测八位位组滑动。如果发现错误位，则计算从错误位开始的相邻块的错误计数。如果错误计数大于1，则搜索信令块的第二个错误位（26），并且验证第二个错误位后相邻块的位（27）。如果第二个错误位之后的相邻块的位不正确，则不能假设八位位组滑移（29）。否则可以通过分析错误计数和错误位来假设八位位组滑动。

IPRDB

热门服务

关于我们

友情链接

联系方式