发明名称 |
DIGITAL BROADCAST RECEIVER |
摘要 |
<p>There is provided a broadcast channel detection device capable of rapidly searching a channel providing a digital broadcast from a plenty of channels. The broadcast channel detection device includes: periodicity signal detection means (21) for selecting a desired channel by channel selection means (12) and detecting a periodicity signal (P) appearing almost at a constant timing from the selected reception signal as an input; period distribution deciding means (22) for deciding the distribution state of the periodicity signal (P) group detected several times; and judgment means (23) for judging whether a digital broadcast is present depending on whether the width of the decided group distribution is contained in a predetermined width.</p> |
申请公布号 |
WO2005109654(A1) |
申请公布日期 |
2005.11.17 |
申请号 |
WO2005JP08381 |
申请日期 |
2005.04.26 |
申请人 |
FUJITSU TEN LIMITED;GOUHARA, HIDENORI |
发明人 |
GOUHARA, HIDENORI |
分类号 |
H04B1/16;H04N5/44;H04N5/50;(IPC1-7):H04B1/16;H04N7/173 |
主分类号 |
H04B1/16 |
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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