Title:
DEVICE AND METHOD FOR DIGITAL BROADCAST RECEPTION
Document Type and Number:
Japanese Patent JP2002374478
Kind Code:
A
Abstract:
To provide a device and a method for digital broadcast reception, which can optimize the input level of an A/D converter without new setting operation even if the form, etc., of an OFDM signal changes.
The phase of the digital signal outputted from the A/D converter 13 is modulated to find a constellation and when the degree of variance of the constellation is detected, the amplification rate of a level converter 12 is controlled according to the degree of variance of the constellation.
Inventors:
AOYANAGI TAKAHISA
TAKEUCHI MITSURU
MORITA MASAKAZU
TAKEUCHI MITSURU
MORITA MASAKAZU
Application Number:
JP2001177576A
Publication Date:
December 26, 2002
Filing Date:
June 12, 2001
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H04J11/00; H04N5/44; H04N5/52; (IPC1-7): H04N5/52; H04J11/00; H04N5/44
Attorney, Agent or Firm:
Hiroaki Tazawa (1 person outside)