发明名称 |
Method and apparatus for the identification of objects |
摘要 |
Disclosed is a system for identifying objects appearing on an image window and bearing on a surface facing the window an identification in the form of a data field which includes at least one data track bearing contrasting symbols and a plurality of contrasting line patterns which identify the position and orientation of the data track. The window is optoelectronically scanned in a parallel line raster to generate a video signal which corresponds to the scanned contrast sequence appearing at the window. The contrasting line patterns are initially identified in a stationary detection raster and the angular inclination of the raster lines relative to the contrasting line pattern is determined. Thereafter, the symbols in the data track are read in a reading raster having relatively narrowly spaced raster lines by electronically rotating the reading raster through the intersection angle between the previously detected contrasting line pattern and the detection scan lines so that the reading scan lines are parallel to the data track. Thereafter, the data track is scanned and the symbols therein are decoded and further used.
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申请公布号 |
US4403339(A) |
申请公布日期 |
1983.09.06 |
申请号 |
US19800198983 |
申请日期 |
1980.10.21 |
申请人 |
SCRANTON GMBH & CO., ELEKTRONISCHE LESEGERATE KG |
发明人 |
WEVELSIEP, KLAUS;SCHOLZE, HANS |
分类号 |
G06K7/015;G06K7/10;(IPC1-7):G06K9/32 |
主分类号 |
G06K7/015 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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