发明名称 |
Electronic switch for TV signal booster |
摘要 |
A method of automatically disabling a low noise amplifier (LNA) that serves to boost weak video signals in a TV tuner, when the television receives a cable TV service. The method involves storing the total number of preset programs assigned during an initial auto-tune setup operation. If the total count exceeds a predetermined threshold, this indicates cable TV service whose signals will not require boosting. The LNA is then disabled to avoid interference between programs on neighboring channels.
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申请公布号 |
US7640572(B2) |
申请公布日期 |
2009.12.29 |
申请号 |
US20050167723 |
申请日期 |
2005.06.27 |
申请人 |
SONY EMCS (MALAYSIA) SDN. BHD. |
发明人 |
TAN SUI FEN;TAN WAN JYH;SAI YOUKI;NG HON SIONG |
分类号 |
H04N5/50;H04N5/14;H04N5/52 |
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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