Title:
SIGNAL WAVEFORM CORRECTION DEVICE AND SIGNAL WAVEFORM CORRECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2010/116468
Kind Code:
A1
Abstract:
A signal waveform correction device includes: a correction unit formed by a frequency correction unit (100) and a gain correction unit (101) for correcting a waveform of a signal inputted via a signal cable according to a correction parameter and outputting the corrected waveform; a window comparator (105), a high-range counter (106), an intermediate-range counter (107), and a low-range counter (108) for detecting a high output level period during which the corrected waveform shows a high output level; and a control unit (104) for setting the correction parameter so that the high output level period detected by the comparator (105) and the counters (106, 107, 108) is longest.
Inventors:
NOGUCHI TOSHIYUKI (JP)
Application Number:
PCT/JP2009/056558
Publication Date:
October 14, 2010
Filing Date:
March 30, 2009
Export Citation:
Assignee:
NEC DISPLAY SOLUTIONS LTD (JP)
NOGUCHI TOSHIYUKI (JP)
NOGUCHI TOSHIYUKI (JP)
International Classes:
H04N5/14
Foreign References:
| JPH082034B2 | 1996-01-10 | |||
| JPS5827412A | 1983-02-18 | |||
| JPH07273575A | 1995-10-20 | |||
| JPH0738886A | 1995-02-07 | |||
| JP2003259149A | 2003-09-12 |
Attorney, Agent or Firm:
TANAI, Sumio et al. (JP)
Sumio Tanai (JP)
Sumio Tanai (JP)
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