发明授权
- 专利标题： Compatible television system with companding of auxiliary signal encoding information
- 专利标题（中）： 兼容电视系统，扩展辅助信号编码信息
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申请号： US139339申请日： 1987-12-29
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公开(公告)号： US4855824A公开(公告)日： 1989-08-08
- 发明人: Jack S. Fuhrer
- 申请人： Jack S. Fuhrer
- 申请人地址： NJ Princeton
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： NJ Princeton
- 优先权： GBX8721565 19870914
- 主分类号： G06T9/00
- IPC分类号： G06T9/00 ; H04N11/24
摘要：
An NTSC compatible, single channel widescreen EDTV system encodes and decodes a television signal comprising (1) a main, standard format NTSC signal wth auxiliary low frequency side panel image information compressed into an overscan region thereof; (2) auxiliary high frequency side panel image information; and (3) auxiliary high frequency horizontal luminance information. High frequency components 2 and 3 are subjected to non-linear amplitude companding, with large amplitude compression at an encoder and inverse amplitude expansion at a decoder.
公开/授权文献
- US6163912A Washing machine 公开/授权日：2000-12-26