发明名称 |
Bit rate discrimination device with temperature compensation function |
摘要 |
A bit rate discrimination device accurately discriminates a bit rate regardless of variations in the operating temperature. A photoelectric converter converts an input optical signal to 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 an 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 a 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 a bit rate of the input optical signal depending on a voltage level of the temperature-compensated bit rate detection signal. <IMAGE> |
申请公布号 |
EP1182811(A3) |
申请公布日期 |
2004.04.07 |
申请号 |
EP20010119354 |
申请日期 |
2001.08.10 |
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;H04B10/07;H04B10/40;H04B10/50;H04B10/556;H04B10/60 |
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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