53.865643 a ccd sensor
34.426823 the second interv of the video
46.9084 the imag pixel
45.293053 the first interv
98.01546 the digit black clamp circuit
8.030239 the d/a convert
10.161309 the black level of an imag
27.80917 the a/d
80.86409 second input of the differenti 
48.54051 no advanc knowledg of dark mean
64.8193 digit process
79.42265 digit black level
23.751596 ccd dark mean level correct ci
29.44577 analog subtract
26.357265 an averag black level
55.396038 an a/d convert
23.147272 a sourc of a video
91.89427 a second interv of imag
89.85354 a first interv of black level p
24.22313 a digit black clamp circuit
