发明名称 |
DC offset filter |
摘要 |
An electronic circuit is disclosed wherein a two-stage DC offset filter is provided and implemented serially to coincide with serially implemented seismic data gathers. A first stage corrects the offset in a multichannel system due to amplification stages common to all channels. A second stage includes a circuit for determining the DC offset unique to each channel and compensates for each channel automatically and individually.
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申请公布号 |
US4545026(A) |
申请公布日期 |
1985.10.01 |
申请号 |
US19820418109 |
申请日期 |
1982.09.14 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
BAGGETT, GARY P.;PETERSON, ROBERT D.;PENNER, WAYNE A. |
分类号 |
G01V1/36;(IPC1-7):G06F15/31 |
主分类号 |
G01V1/36 |
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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