公开(公告)号：US5040158A

公开(公告)日：1991-08-13

申请号：US577498

申请日：1990-09-04

申请人： Jae S. Lee ,  Pyung H. Ye ,  Mi S. Han

发明人： Jae S. Lee ,  Pyung H. Ye ,  Mi S. Han

IPC分类号： H04M3/22 ,  G04G7/00 ,  G06F1/14 ,  H04Q3/545

CPC分类号： G06F1/14 ,  G04G7/00

摘要： A method of operating and maintaining the clock of the system for determining a reference clock of the system when starting an operation and maintenance processor (OMP), comprises the steps of: a first step of requesting and receiving a hardware clock from a network synchronizing processor (NSP); a second step of checking if the received hardware clock does not fall between a predetermined minimum and a predetermined maximum, and if so, providing an alarm message which requires an operator to provide information on a reference clock and if not, requesting reference clocks from all of the processors except an operation and maintenance processor (OMP); and a third step of comparing the hardware clock and the received reference clocks as many times as the number of the received reference clocks, and determining the hardware clock as a reference clock of the system if a difference is less than or equal to a predetermined time for more than the predetermined number of times and if not, providing an alarm message which requires the operator to provide information on a clock as necessary to determine the reference clock of the system.

摘要翻译： 一种在启动操作和维护处理器（OMP）时操作和维护用于确定系统的参考时钟的系统的时钟的方法包括以下步骤：从网络同步处理器（OMP）请求和接收硬件时钟的第一步骤 （NSP）; 检查所接收的硬件时钟是否不在预定的最小值和预定的最大值之间的第二步骤，如果是，则提供一个报警消息，该报警消息需要操作者提供关于参考时钟的信息，如果不是，则从所有的请求中请求参考时钟 的处理器，除了操作和维护处理器（OMP）; 以及第三步骤，将硬件时钟和所接收的参考时钟与所接收的参考时钟的数量进行比较，并且如果差小于或等于预定时间，则将硬件时钟确定为系统的参考时钟 超过预定次数，如果不是，则提供报警消息，其要求操作者根据需要提供关于时钟的信息以确定系统的参考时钟。

公开(公告)号：US5570125A

公开(公告)日：1996-10-29

申请号：US336647

申请日：1994-11-04

申请人： Moon K. Oh ,  Mi S. Han ,  Seung H. Kim ,  Young S. Kim

发明人： Moon K. Oh ,  Mi S. Han ,  Seung H. Kim ,  Young S. Kim

IPC分类号： H04L12/801 ,  H04L12/911 ,  H04N21/61 ,  H04Q3/00 ,  H04Q11/04 ,  H04N7/00

CPC分类号： H04L49/3081 ,  H04L49/201 ,  H04L49/203 ,  H04L49/254 ,  H04N7/17318 ,  H04L2012/563 ,  H04L2012/5642

摘要： A method of controlling a television broadcasting call in an ATM switching system in which a television broadcasting service as one of B-ISDN services can be provided through an ATM switching network. The provision of the television broadcasting call in the ATM switching system is not performed by previously connecting all information transmission paths between a broadcasting source and a viewer (subscriber) but by connecting information transmission paths of the nearest switching modules between the broadcasting source and the viewer according to a requirement of the viewer under the condition that a semi-permanent connection is made between the broadcasting source and the ATM switching system. Therefore, the processing capability of the ATM switching system can be enhanced. The present invention can basically realize various B-ISDN services in the future.

摘要翻译： 一种在ATM交换系统中控制电视广播呼叫的方法，其中可以通过ATM交换网络提供作为B-ISDN服务之一的电视广播服务。 在ATM交换系统中提供电视广播呼叫不是通过预先连接广播源和观众（用户）之间的所有信息传输路径，而是通过在广播源和观众之间连接最近的交换模块的信息传输路径来执行 在广播源和ATM交换系统之间进行半永久连接的条件下，根据观众的要求。 因此，可以提高ATM交换系统的处理能力。 本发明基本上可以实现各种B-ISDN业务。