发明名称 |
Bit rate discrimination device with temperature compensation function |
摘要 |
Disclosed is a bit rate discrimination device that accurately discriminates a bit rate regardless of variations in the operating temperature. A photoelectric converter converts an input optical signal into an electric signal, and a bit rate detector detects a bit rate of the optical signal from the electric signal and outputs a discrimination signal indicating the bit rate. A DC amplifier outputs a bit rate detection signal by amplifying the discrimination signal, and a temperature detector detects the operating temperature of the DC amplifier and outputs a temperature signal indicating the detected operating temperature. A variation amplifier outputs a temperature compensation signal by amplifying the voltage level difference between the temperature signal and a predetermined reference signal, so as to cancel variations in an output voltage of the DC amplifier according to the operating temperature. A voltage adder outputs a temperature-compensated bit rate detection signal by combining the bit rate detection signal with the temperature compensation signal. A bit rate discriminator determines the bit rate of the input optical signal depending on the voltage level of the temperature-compensated bit rate detection signal.
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申请公布号 |
US6580263(B2) |
申请公布日期 |
2003.06.17 |
申请号 |
US20010929885 |
申请日期 |
2001.08.15 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD |
发明人 |
CHOI JEONG-SEOK;PARK TAE-SUNG;DOH HEE-CHAN;PARK GIL-YONG;OH YUN-JE |
分类号 |
H03F1/30;H04B10/00;H04B10/02;H04B10/04;H04B10/06;H04B10/08;H04B10/14;H04B10/26;H04B10/28;(IPC1-7):G01R31/00;G01R23/17;G01R27/26 |
主分类号 |
H03F1/30 |
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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