| 摘要 |
<p>PURPOSE:To suppress the generation of Moire fringes in a state that sufficient luminance remains held by scanning an electronic beam at a speed of two folds of an image sending side, when a television image is received, and shifting a position of a scanning line of a first field and a scanning line of a second field by 1/2 of a scanning line interval of each field. CONSTITUTION:A first field and a second field are constituted of 262.5 pieces of scanning lines, respectively, and they are scanned without being superposed to each other, and as a result, the total number of scanning lines becomes 525 pieces. Scanning of 525 pieces is executed during 1/60 second in which a first field is sent, and scanning of 525 pieces is executed by shifting it a little during the next 1/60 second in which a second field is sent. As a result, the total number of scanning lines becomes 1050 pieces of two folds. Scanning of two folds of an image sending side is executed by each field, and as for an image signal corresponding thereto, it is allowable to apply the same signal to two pieces of continuous scanning lines, and also, it is allowable to apply it by synthesizing it with a signal of a field before one or more by using an image memory device.</p> |
