| 单词 | picture signal |
| 释义 | > as lemmaspicture signal picture signal n. Television the component of the video signal which carries the information relating to the brightness of individual pixels. ΘΚΠ society > communication > broadcasting > television > visual element > [noun] > signals, types, or parts of picture frequency1926 picture signal1927 black level1935 line frequency1936 pedestal1937 line scan1938 picture black1938 white level1938 porch1941 test signal1945 spot wobble1950 luminance1953 1927 H. W. Secor & J. H. Kraus Television iii. 15 As the incoming picture signals are passed through an electromagnet or solenoid, it is caused to open and close a light shutter made of a small piece of aluminum and a spring. 1954 E. Molloy Radio & Television Engineers' Ref. Bk. xxxiii. 10 As with all forms of interference, the effect will largely depend upon the ratio of the levels of the interfering signal to the picture signal. 1993 New Scientist 3 Apr. 21/1 Satellite TV channels use a wider range of frequencies..so there is room for four extra signals, known as subcarriers, along with the conventional TV picture signal and mono sound. < as lemmas |
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