发明名称 |
METHOD FOR FAST CONVERTING CHANNEL OF SATELLITE SET TOP BOX |
摘要 |
PURPOSE: A method for fast converting a channel of a satellite set top box is provided for a user to accurately select a channel by repeatedly executing a preprocess of synchronizing a center frequency of the corresponding channel and a following process of correcting the center frequency. CONSTITUTION: A symbol rate is set up and recorded in an FEC IC(Forward Error Correcting Integrated Circuit)(S31). A center frequency corresponding to the set symbol rate is corrected into a correction value preliminarily stored, and the corrected center frequency is recorded in a PLL IC(Phase Locked Loop Integrated Circuit) for selecting a channel(S32). It is judged whether the FEC IC is locked(S33). If not, a frequency is changed in a range preliminarily set(S34). If so, a difference between the previous center frequency and the frequency in the case that the FEC IC is locked is stored as a correction value of the center frequency(S35).
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申请公布号 |
KR20030049412(A) |
申请公布日期 |
2003.06.25 |
申请号 |
KR20010079607 |
申请日期 |
2001.12.14 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
CHOI, BONG JUN |
分类号 |
H04N7/20;(IPC1-7):H04N7/20 |
主分类号 |
H04N7/20 |
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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