发明名称 |
Receiver capable of switching between digital and analog broadcasting signals |
摘要 |
A receiver includes an FFT analysis result/group delay characteristic determining unit for determining whether or not a group of carrier signals of a digital broadcasting signal satisfies predetermined requirements, and delivers a requirement satisfaction determination signal indicating the determining result. When receiving the requirement satisfaction determination signal indicating that the group of carrier signals doesn't satisfy the predetermined requirements while the receiver is selectively receiving the digital broadcasting signal, a switching circuit switches to the reception of an analog broadcasting signal. In contrast, when receiving the requirement satisfaction determination signal indicating that the group of carrier signals satisfies the predetermined requirements while the receiver is selectively receiving the analog broadcasting signal, the switching circuit switches to the reception of the digital broadcasting signal.
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申请公布号 |
US7164894(B2) |
申请公布日期 |
2007.01.16 |
申请号 |
US20040751483 |
申请日期 |
2004.01.06 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
NAGAHAMA HIROYUKI;NAGANO SOICHI |
分类号 |
H04N5/46;H04B1/16;H04B1/18;H04B17/00;H04H20/00;H04H20/22;H04H40/18;H04N5/44;H04N7/06 |
主分类号 |
H04N5/46 |
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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