Title:
LIGHT MODULATION DEVICE, AND TIMING ADJUSTMENT METHOD FOR LIGHT MODULATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/061303
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a technology which is capable of appropriately adjusting modulation timing. When the modulation timing is adjusted, a data generation unit respectively generates, as a first data signal and a second data signal, a first test data signal and a second test data signal which each include, in a data sequence, a test pattern in which a plurality of consecutive marks and a plurality of consecutive spaces are alternately repeated. Furthermore, a phase adjustment unit adjusts the phase difference to 0 or π, and a timing adjustment unit subsequently adjusts the modulation timing on the basis of the intensity detected by a light intensity detector.
Inventors:
HAYASHI SHUSAKU (JP)
ENOKI KENTARO (JP)
AKIYAMA KOICHI (JP)
ENOKI KENTARO (JP)
AKIYAMA KOICHI (JP)
Application Number:
PCT/JP2017/019021
Publication Date:
April 05, 2018
Filing Date:
May 22, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04B10/556; G02F1/015; G02F1/025; H04B10/073
Domestic Patent References:
| WO2012073590A1 | 2012-06-07 |
Foreign References:
| JP2008187223A | 2008-08-14 | |||
| JP2011197436A | 2011-10-06 |
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
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