发明名称 |
Digital signal receiving apparatus |
摘要 |
A digital signal receiving apparatus includes a detection-judging portion having a first smoothing filter generating a first smoothed signal by smoothing an auto-correlation signal and judging a possible presence of a desired signal when a signal level of the first smoothed signal is greater than a reference level and an absence of the desired signal when being smaller than the reference level. The smoothing filter includes a limiting portion limiting a fluctuation width of the first smoothed signal; and an adjusting portion configured to adjust the fluctuation width of the first smoothed signal limited by the limiting portion to be reduced while an elapsing time after the detection-judging means judges the possible presence of the desired signal is increasing.
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申请公布号 |
US8050370(B2) |
申请公布日期 |
2011.11.01 |
申请号 |
US20080270394 |
申请日期 |
2008.11.13 |
申请人 |
AISIN SEIKI KABUSHIKI KAISHA |
发明人 |
YAMAMOTO TOMOHIRO;FURUHASHI AKIRA;HORIE TAKAHIRO;MURAKAMI YUICHI;ONO KAZUNORI;COUTANT FREDERIC;AOUINE TARIK |
分类号 |
H04B1/10 |
主分类号 |
H04B1/10 |
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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