发明名称 |
SYNCHRONIZATION DETECTION CIRCUIT |
摘要 |
<p>SYNCHRONIZATION DETECTION CIRCUIT There is disclosed an asynchronous pulse catching circuit that, for each edge of the variable frequency input, regardless of duty cycle, will provide a pulse, synchronized to a high speed clock. There is also disclosed a pulse comparison circuit consisting of a state machine that provides slip detection between the variable input frequency and a reference input frequency. The circuit provides separate outputs indicating positive and negative slip.</p> |
申请公布号 |
CA1254271(A) |
申请公布日期 |
1989.05.16 |
申请号 |
CA19870530683 |
申请日期 |
1987.02.26 |
申请人 |
AMERICAN TELEPHONE AND TELEGRAPH COMPANY |
发明人 |
LANZAFAME, CHRISTOPHER;MOFFITT, BRYAN S. |
分类号 |
G01R29/18;G01R31/28;H03K5/26;H03L7/085;H04L7/033;(IPC1-7):H04L7/00 |
主分类号 |
G01R29/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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