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Patent Searching and Data


Title:
EDT TELEVISION RECEIVER
Document Type and Number:
Japanese Patent JPH06165128
Kind Code:
A
Abstract:

PURPOSE: To faithfully demodulate the vertical high frequency component of original luminance by executing signal processing for removing a noise component added to a vertical reinforced signal in a transmission system.

CONSTITUTION: A dividing part 2 divides signal components, i.e., a vertical reinforced signal VP, a lateral image signal VM and a horizontal reinforced signal HP, included in the upper and lower non-picture areas of a screen. A noise removing part 9 removes a noise component added in the transmission system by the outline storing type or motion adaptive type signal processing of the signal VP to generate a signal VPN from which a noise in a flat part is removed. A vertical reinforced signal decoding part 10 executes prescribed demodulating processing such as the rearrangement of a time sequence and the extension of a time base to reproduce the vertical high frequency components, LD, HD of luminance. Consequently a noise in a still picture part which is visually conspicuous and an offensive noise component interfering with picture quality can be removed.


Inventors:
HIRANO YASUHIRO
SUZUKI NORIHIRO
KAGEYAMA MASAHIRO
Application Number:
JP30848492A
Publication Date:
June 10, 1994
Filing Date:
November 18, 1992
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
H04N7/015; H04N7/00; H04N7/01; (IPC1-7): H04N7/00; H04N7/01
Attorney, Agent or Firm:
Ogawa Katsuo