Patent ID: 6243503
Filing Date: 2001-06-05
Classification: H04N

Abstract:
A data acquisition device for optically acquiring and storing alphanumerical characters, graphics and photographic pictures arranged in an image plane, in whicha projecting device (15, 115) provided with a radiation source (17, 117) for selecting an image section (19) in the image plane (20) freely selectable within a preset maximum section, projects light onto said section of the picture;an optical unit (4, 104, 204, 307) captures the light reflected by said image section (19) and reproduces it on a screen sensor (14, 114, 208, 308) converting the light into a sequence of electronic signals;a motion detector (2, 202) for recording the given position of the data acquisition device (1, 1', 200) converts movements of the data acquisition device (1, 1', 200) within a plane of detection at least approximately parallel with the image plane (20) in any desired direction into synchronizing signals, said direction being variable during the acquisition;a signal processing unit (7, 207, 318) converts the signals of the screen sensor (14, 114, 208, 308) with the help of the synchronizing signals into character code-independent information packets with retention of the entire originally pictured information of the selected section (19) of the picture, and recallably files said information packets in a memory unit (47, 217) for occasional further electronic processing.