发明名称 |
Antenna direction adjusting method and apparatus for satellite broadcasting receiving system |
摘要 |
A method and an apparatus for adjusting the direction of an antenna on the basis of the C/N in a satellite broadcasting receiving system are disclosed. When the image quality is insufficient with the antenna direction in a displaying mode, a user specifies a fine adjustment mode through a key input portion. Then the current antenna direction is stored into a memory as a fine adjustment start position. A CPU deflects the antenna within a predetermined measuring range around the fine adjustment start position. The CPU detects one or more peaks of the C/N level and discriminates non-objective peaks. If the C/N level exhibits a plurality of peaks resulting from the signal reception, the CPU selects the antenna direction corresponding to the peak closest to the fine adjustment start position.
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申请公布号 |
US5376941(A) |
申请公布日期 |
1994.12.27 |
申请号 |
US19930047677 |
申请日期 |
1993.04.15 |
申请人 |
UNIDEN CORPORATION |
发明人 |
FUKAZAWA, TAKEKAZU;NODA, MASATAKA |
分类号 |
H01Q3/02;G01S3/42;H01Q1/12;H04B1/08;H04B1/16;(IPC1-7):H01Q3/00;G01S13/00 |
主分类号 |
H01Q3/02 |
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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