发明名称 |
Adaptive clock recovery |
摘要 |
A method of recovering a clock signal for a TDM output from packets of TDM data which have been transmitted over a packet network, from a source having a source TDM clock to a destination having a destination TDM clock. The method includes providing at least some packets with a Remote Time stamp representing the state of the source TDM clock when the packet is created; providing said at least some packets with a Local Timestamp representing the state of the destination TDM clock when the packet is received; determining a Transit Time value representing the difference between said Local and Remote Timestamps; and controlling the clock frequency of the TDM output on the basis of said Transit Time as determined above.
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申请公布号 |
US7411970(B2) |
申请公布日期 |
2008.08.12 |
申请号 |
US20030646087 |
申请日期 |
2003.08.22 |
申请人 |
ZARLINK SEMICONDUCTOR LIMITED |
发明人 |
SCOTT MARTIN RAYMOND;FAITHORN NICHOLAS;FROST TIMOTHY MICHAEL EDMUND |
分类号 |
H04L7/00;H04L12/56;H04B7/212;H04J3/06 |
主分类号 |
H04L7/00 |
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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