发明名称 |
Optical image sensor semiconductor apparatus |
摘要 |
The optical intensity pattern of a two-dimensional image field is electrically scanned a line at a time by a shift register access technique, thus providing a first stream of bits for each line. Each of these bits in a given line is compared with a dither coded second stream of bits generated in response to the background illumination (absence of image) along a line immediately adjacent to the line being scanned. The resulting sequence of comparisons is a dither coded signal representation of the line being scanned, which is compensated for nonuniform background illumination of the image field.
|
申请公布号 |
US4192015(A) |
申请公布日期 |
1980.03.04 |
申请号 |
US19780883476 |
申请日期 |
1978.03.06 |
申请人 |
BELL TELEPHONE LABORATORIES INC |
发明人 |
TOMPSETT, MICHAEL F |
分类号 |
G11C13/04;H04N5/70;(IPC1-7):G11C11/42 |
主分类号 |
G11C13/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|