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11. 发明授权

US5483180A Data and clock recovery circuit 失效
标题翻译：数据和时钟恢复电路
公开(公告)号：US5483180A
公开(公告)日：1996-01-09
申请号：US346206
申请日：1994-11-22
申请人： Sang-Hoon Chai , Mun-Yang Park , Myung-Shin Kwak , Hae-Wook Choi
发明人： Sang-Hoon Chai , Mun-Yang Park , Myung-Shin Kwak , Hae-Wook Choi
IPC分类号： H03K27/00 , H03L7/087 , H03L7/089 , H03L7/14 , H04J3/06 , H04L7/00 , H04L7/033 , H03K5/13
CPC分类号： H03L7/087 , H03L7/14 , H04J3/0688 , H04L7/0083 , H03L7/0891 , H04L7/033
摘要： Disclosed is a data and clock recovery circuit possible to restore data signals and synchronizing clocks which have been distorted during transmission over the communication line, which is comprised of the following: main oscillation loop that maintains operating frequency by using the input data and a self oscillation loop that operates using reference clock embedded within multiplex communication devices when communication lines get shorted or when power is restored after an outage; loop selecting switch which selects the main oscillation loop during normal operating mode and selects the self oscillation loop when communication line shorts or when the power is being restored; data signal monitor which connects to the loop selecting switch and determines communication line shorting by monitoring data transmission; power supply monitor which connects to the loop selecting switch and monitors the restoration of power after an outage. The circuit maintains stable operation and supplies stable output to multiplex communication devices not only during the normal operating conditions, but also when there is a communication line shorting or restoration of power after a power supply outage.
摘要翻译：公开了一种数据和时钟恢复电路，可以恢复通过通信线路传输期间已经失真的数据信号和同步时钟，其包括以下：通过使用输入数据和自振荡来维持工作频率的主振荡环路环路，当通信线路短路或停电后恢复供电时，使用嵌入多路通信设备内的参考时钟进行工作; 环路选择开关，其在正常操作模式下选择主振荡环路，并且当通信线路短路或电源恢复时选择自振荡环路; 数据信号监视器，连接到环路选择开关，通过监视数据传输确定通信线路短路; 电源监视器，连接到回路选择开关，并监视停电后的电源恢复。该电路不仅在正常工作条件下，而且在电源中断后还有通信线路短路或恢复供电时，保持稳定运行，并提供稳定的输出以多路复用通信设备。

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