发明名称 |
System and apparatus for transmitting and receiving high definition television pictures over a channel having a comparatively narrow passband |
摘要 |
In this system a transmission of certain high definition picture elements is provided such that at the receiving side it is possible to recover a picture of the normal definition without it being necessary to use additional circuits.
|
申请公布号 |
US4977453(A) |
申请公布日期 |
1990.12.11 |
申请号 |
US19880252247 |
申请日期 |
1988.09.30 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
FONSALAS, FREDERIC;HAYET, PASCAL;LEJARD, JEAN-YVES;LE QUEAU, MARCEL |
分类号 |
H04N7/015;H04N7/12 |
主分类号 |
H04N7/015 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|