Title:
MODEM DEVICE WITH ERROR DETECTION FUNCTION AND ERROR DETECTION METHOD
Document Type and Number:
Japanese Patent JP2003018225
Kind Code:
A
Abstract:
To make an observer detect a communication error by observing the reception state based on an eye pattern detected from a reception signal with respect to communication using a multicarrier.
With respect to communication using the multicarrier, an error quantity which is the amount of difference between the coordinate point of the eye pattern detected from an actual reception signal in each sub-carrier and that essentially scheduled from the reception signal is calculated by an eye pattern display control part 105 and is displayed on an oscilloscope 107.
Inventors:
TOMITA KEIICHI
IMAI TATSUO
NOMA NOBUHIKO
IMAI TATSUO
NOMA NOBUHIKO
Application Number:
JP2001196505A
Publication Date:
January 17, 2003
Filing Date:
June 28, 2001
Export Citation:
Assignee:
MATSUSHITA GRAPHIC COMMUNIC
International Classes:
H04J11/00; H04L1/20; H04L25/02; H04L27/26; (IPC1-7): H04L25/02; H04J11/00
Attorney, Agent or Firm:
Koichi Washida