Title:
RECEIVING CIRCUIT FOR INFORMATION DEVICE AND INFORMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/119061
Kind Code:
A1
Abstract:
A receiving circuit for an information device comprises: a linear equalizer which amplifies a high-frequency component of an input signal; a decision feedback equalizer to which an output waveform from the linear equalizer is inputted and which calculates a plurality of tap coefficients and filters an input waveform according to the calculated plurality of tap coefficients; a tap coefficient polarity determiner which determines whether or not, in a sequence comprising the plurality of tap coefficients, at least two consecutive tap coefficients starting with the coefficient at a prescribed point in the sequence have the same polarity; and an equalization amount control unit which controls the equalization amount of the linear equalizer on the basis of the result of the determination.
Inventors:
KOHMU NAOHIRO (JP)
NORIMATSU TAKAYASU (JP)
NORIMATSU TAKAYASU (JP)
Application Number:
PCT/JP2016/050086
Publication Date:
July 13, 2017
Filing Date:
January 05, 2016
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H04B3/06
Foreign References:
| JP2006101003A | 2006-04-13 | |||
| JPH11168412A | 1999-06-22 | |||
| US8848774B2 | 2014-09-30 |
Other References:
BULOW, HENNINIG: "Electronic equalization of transmission impairments", OPTICAL FIBER COMMUNICATION CONFERENCE AND EXHIBIT(OFC) 2002, 17 March 2002 (2002-03-17), pages 24 - 25, XP010617600
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
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