发明申请
- 专利标题: RECEIVER CIRCUIT AND SEMICONDUCTOR INTEGRATED CIRCUIT
- 专利标题(中): 接收电路和半导体集成电路
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申请号: US14170901申请日: 2014-02-03
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公开(公告)号: US20140286381A1公开(公告)日: 2014-09-25
- 发明人: Takayuki Shibasaki
- 申请人: FUJITSU LIMITED
- 申请人地址: JP Kawasaki-shi
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 当前专利权人地址: JP Kawasaki-shi
- 优先权: JP2013-060680 20130322
- 主分类号: H04L1/20
- IPC分类号: H04L1/20
摘要:
In a receiver circuit which can correct a deviation of phase between an input signal and a clock, a sampler detects an amplitude level of the input signal at timing indicated by the clock, a first comparison circuit compares a first and a second amplitude level detected by the sampler at first and second timings, respectively, with a determined threshold, an interpolation circuit calculates an intermediate level that approximates to an amplitude level of the input signal corresponding to an intermediate point between the first and second timings by an interpolation process based on the first and second amplitude levels, a second comparison circuit compares the intermediate level with the determined threshold, and a phase deviation detection circuit detects the deviation of phase between the clock and the input signal on the basis of comparison results obtained by the first and second comparison circuits.
公开/授权文献
- US08983014B2 Receiver circuit and semiconductor integrated circuit 公开/授权日:2015-03-17
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