公开(公告)号：US4068265A

公开(公告)日：1978-01-10

申请号：US526453

申请日：1974-11-25

申请人： James T. Russell

发明人： James T. Russell

IPC分类号： H04N5/926 ,  H04N7/46 ,  H04N7/12

CPC分类号： H04N5/926 ,  H04N19/59

摘要： The effective resolution of a TV presentation reproduced from digitally encoded samples is improved by shifting the sampling points back and forth at a relatively rapid rate. Alternate lines of the original television raster are sampled at shifted points, wherein the shift is less than the sampling interval and suitably one half the sampling interval. Since a TV raster includes an odd number of horizontal lines, a particular line location on the reproduced raster will be formed of samples which shift back and forth at one half the TV frame rate, i.e. 15 cycles per second.

摘要翻译： 通过以相对较快的速率来回移动采样点，提高了从数字编码样本再现的电视节目的有效分辨率。 原始电视光栅的替代行在偏移点进行采样，其中移位小于采样间隔，适当地为采样间隔的一半。 由于TV光栅包括奇数个水平线，所以再现的光栅上的特定线位置将由电视帧速率的一半（即每秒15个周期）来回移动的样本形成。