发明名称 |
CHANNEL SCAN DEVICE AND METHOD, AND PROGRAM |
摘要 |
The present technique relates to a channel scan device and method, and a program configured so that high-speed channel scan is enabled.;The power spectrum extracting unit 31 of the decoding unit 22 extracts a power level for each frequency of an input signal as a power spectrum, and supplies the power level to the channel scan processing unit 23. The channel scan processing unit 23 extracts a trapezoidal band, which constitutes a power spectrum waveform, in a power spectrum as a channel candidate, and extracts a channel, for which synchronization of a clock and synchronization of a TS required for reproduction of audio and video can be confirmed, as a valid channel. The present technique can be applied to a television receiver. |
申请公布号 |
US2014267929(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
US201214350981 |
申请日期 |
2012.11.14 |
申请人 |
SONY CORPORATION |
发明人 |
Kamata Hiroyuki;Matsumoto Hideyuki;Hirayama Yuichi |
分类号 |
H04N5/50;H04N21/438;H04N21/426 |
主分类号 |
H04N5/50 |
代理机构 |
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代理人 |
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主权项 |
1. A channel scan device comprising:
a power spectrum extracting unit that extracts a power level for each frequency of an input signal as a power spectrum; and a first channel candidate extracting unit that estimates that a trapezoidal range of a waveform, which constitutes the power spectrum, is a channel candidate and extracting the range. |
地址 |
Minato-ku JP |