| 发明名称 |
Frequency acquisition utilizing a training pattern with fixed edge density |
| 摘要 |
A method for frequency acquisition comprising steps of, acquiring samples of an input signal, each sample having edges, making sets with a fixed number of consecutively taken samples, numbering the edges in each set and determining a number of edges, comparing the number of edges in each set with an expected number of edges in the sets, increasing a frequency of a reference oscillator used in acquiring samples if the actual number of edges exceeds the expected number of edges, and decreasing the frequency of the reference oscillator used in acquiring samples if the expected number of edges exceeds the actual number of edges in a set. |
| 申请公布号 |
US8811557(B2) |
申请公布日期 |
2014.08.19 |
| 申请号 |
US201113327528 |
申请日期 |
2011.12.15 |
| 申请人 |
NXP B.V. |
发明人 |
den Besten Gerrit Willem;van der Wel Arnoud Pieter |
| 分类号 |
H04L7/033;H03L7/091;H03L7/099;H03L7/08;H03L7/095 |
主分类号 |
H04L7/033 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for frequency acquisition, comprising steps of:
acquiring samples of an input signal, each sample having edges, making sets with a fixed number of consecutively taken samples, numbering the edges in each set and determining a number of edges, comparing the number of edges in each set with an expected number of edges in the sets, increasing a frequency of a reference oscillator used in acquiring samples if the actual number of edges exceeds the expected number of edges, and decreasing the frequency of the reference oscillator used in acquiring samples if the expected number of edges exceeds the actual number of edges in a set. |
| 地址 |
Eindhoven NL |
