Title:
【発明の名称】一様な中央および側部パネル画像解像度を有するワイドスクリーンテレビジョン信号の処理システム
Document Type and Number:
Japanese Patent JPH05507393
Kind Code:
A
Abstract:
An NTSC compatible widescreen EDTV system encodes and decodes a television signal (N) comprising (1) a main, standard format NTSC signal with auxiliary low frequency side panel image information compressed into an overscan region thereof; (2) auxiliary high frequency side panel image information (X); and (3) auxiliary high frequency horizontal luminance information (Z). At an encoder, components 2 and 3 are intraframe averaged (64, 76) before modulating an alternate subcarrier (80). Component 1 is intraframe averaged (38) exclusive of the compressed side panel information before being combined (40) with the modulated alternate subcarrier.
Inventors:
Isner Day, Michael Anthony
Smith, terence raymond
Smith, terence raymond
Application Number:
JP50306189A
Publication Date:
October 21, 1993
Filing Date:
February 10, 1989
Export Citation:
Assignee:
General Electric Company
International Classes:
G06T9/00; H04N7/01; H04N7/26; H04N7/015; H04N7/46; H04N11/00; H04N11/24; (IPC1-7): H04N7/00; H04N7/01; H04N11/00
Attorney, Agent or Firm:
Satoshi Shimizu (2 outside)