发明名称 |
INPUT SIGNAL LEVEL DETECTION APPARATUS AND METHOD |
摘要 |
A method and an input signal level detection apparatus that correctly detect a level of an input signal while consuming low power apparatus including: a full-wave rectifier outputting a full-wave rectified waveform by performing a full-wave rectification on a first signal corresponding to an input signal, and on a second signal having a phase difference of 180 degrees from the first signal; a common voltage detector detecting a common voltage of the first signal and the second signal; and a level detection unit detecting a level of the input signal, based on a subtraction result obtained by subtracting the common voltage from the full-wave rectified waveform.
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申请公布号 |
US2009174436(A1) |
申请公布日期 |
2009.07.09 |
申请号 |
US20080127172 |
申请日期 |
2008.05.27 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KWON DAE-HOON;LEE JEONG-WON |
分类号 |
G01R25/00 |
主分类号 |
G01R25/00 |
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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