发明名称 |
Clamping circuit for video signals |
摘要 |
An apparatus, system and method for clamping a video signal input to a coupling capacitor (215) for providing a clamping voltage. A charging current is applied to the capacitor (215) via an amplifier (225) having a first input (227) coupled with the capacitor output and a second input (226) coupled to a reference potential, the amplifier (225) is responsive to the capacitor output signal and the reference potential for providing the charging current to the capacitor (215). The current has a linearly varying magnitude which is proportional to a difference between the capacitor output and the reference potential.
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申请公布号 |
US2004246380(A1) |
申请公布日期 |
2004.12.09 |
申请号 |
US20030457654 |
申请日期 |
2003.06.09 |
申请人 |
YING FENG;BILHAN ERKAN;BILHAN HAYDAR;NAVE JAMES E. |
发明人 |
YING FENG;BILHAN ERKAN;BILHAN HAYDAR;NAVE JAMES E. |
分类号 |
H04N5/18;(IPC1-7):H04N5/16 |
主分类号 |
H04N5/18 |
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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