发明名称 |
Method and apparatus for recovering data and clock information from a self-clocking data stream |
摘要 |
A method and apparatus are disclosed for recovering data and clock information from high speed self-clocking data streams at rates of up to approximately 50 Mbps. The self-clocking data stream has a predetermined bit period and two voltage levels with negative-going and positive-going voltage level transitions. A pulse is generated for each voltage level transition in the coded stream. This pulse is applied to a non-retriggerable one-shot that produces an output pulse that is approximately the duration of one-half of a bit period. After the output pulse of the one-shot terminates, the one-shot is non-retriggerable for a period of time less than the duration of one-half of a bit period. The output pulse from the one-shot provides clock information derived from the coded bit stream. This clock information is provided to the clock input of a bistable storage device and the coded bit stream is applied to a data input to the storage device. In response to the clock input, the bistable storage device decodes the coded bit stream to provide decoded data information at an output.
|
申请公布号 |
US4578799(A) |
申请公布日期 |
1986.03.25 |
申请号 |
US19830539128 |
申请日期 |
1983.10.05 |
申请人 |
CODENOLL TECHNOLOGY CORPORATION |
发明人 |
SCHOLL, FREDERICK W.;CODEN, MICHAEL H. |
分类号 |
G11B20/14;H04L7/033;H04L25/49;(IPC1-7):H03D3/22;G11B5/09;H04L7/02;H04L27/22 |
主分类号 |
G11B20/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|