发明名称 |
TRIPLE-CONVERSION TELEVISION TUNER |
摘要 |
A television tuner employs a triple-conversion architecture to translate VHF/UHF TV signals to various standard IF frequencies. The television tuner includes a harmonic rejection mixer, a first image rejection mixer and a second image rejection mixer. The television tuner receives a television signal. The harmonic rejection mixer up-converts the television signal into a first IF signal according to a first reference signal with a fixed frequency. The first image rejection mixer further up-converts the first IF signal into a second IF signal according to a second reference signal with a tunable frequency. The second image rejection mixer down-converts the second IF signal into a third IF signal according to a third reference signal with a tunable frequency.
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申请公布号 |
US2008100755(A1) |
申请公布日期 |
2008.05.01 |
申请号 |
US20070924389 |
申请日期 |
2007.10.25 |
申请人 |
MSTAR SEMICONDUCTOR, INC. |
发明人 |
WANG FUCHENG;YANG CHAO-TUNG;LU YI |
分类号 |
H04N5/50 |
主分类号 |
H04N5/50 |
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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