发明名称 |
Digital TV signal receiver with direct conversion from UHF I-F to Low-Band I-F before digital demodulation |
摘要 |
A plural-conversion digital television signal receiver that embodies the invention upconverts digital television signal from a selected television channel to a UHF initial I-F signal. After image-rejection filtering there is a single-step downconversion of the initial UHF first I-F signal to a low-band final I-F signal, the uppermost frequency of which is in the high-frequency band. The low-band final I-F signal is digitized and demodulated in the digital regime to generate a baseband signal.
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申请公布号 |
US6496230(B1) |
申请公布日期 |
2002.12.17 |
申请号 |
US19990397019 |
申请日期 |
1999.09.15 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LIMBERG ALLEN LEROY;PATEL CHANDRAKANT BHAILALBHAI |
分类号 |
H04N5/21;H04N5/44;H04N5/455;(IPC1-7):H04N5/44 |
主分类号 |
H04N5/21 |
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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