发明名称 |
Apparatus and method for decoding SECAM chrominance signal |
摘要 |
We describe an apparatus and method for decoding a SECAM chrominance signal. The apparatus may include a band-pass filter to separate the chrominance signal from the composite video baseband signal. A down-mixer down mixes the chrominance signal from a high to a low frequency band to generate two signals having a substantially 90° phase difference. A cloche filter filters the two signals. A differentiator differentiates the cloche filtered signals. A multiplier squares each differentiated signal. An adder sums the squared result while a square root takes the square root of the sum.
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申请公布号 |
US7535514(B2) |
申请公布日期 |
2009.05.19 |
申请号 |
US20050259758 |
申请日期 |
2005.10.25 |
申请人 |
SAMUNG ELECTRONICS CO., LTD. |
发明人 |
AHN DEUK-GEUN;KANG BONG-SOON;HA JOO-YOUNG;KIM JU-HYUN |
分类号 |
H04N9/66;H04N9/77 |
主分类号 |
H04N9/66 |
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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