Optical code reader for producing video displays
5 Assignments
0 Petitions
Accused Products
Abstract
An imaging optical code reader is adapted for use in producing video displays and for use in motion detection surveillance using video compression and narrow band width communication links. An optical system including a plane parallel plate may be employed to change the system focal distance. The imaging optical code reader is also adapted for measurement of physical parameters of a target object including motion, distance, weight and dimensions.
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Citations
40 Claims
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1-5. -5. (Canceled)
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6. An optical code decoding system comprising:
an imaging apparatus for obtaining and displaying video image signals comprising;
an optical code reader including;
a two dimensional image sensor for sensing light incident on the image sensor and generating image data corresponding to the sensing when operating in an optical code reading mode the image data including data corresponding to at least a portion of a captured optical code, and video data corresponding to the sensing when operating in a video data communication mode, the video data output at at least three frames per second, means for compressing said video data;
a host terminal with a communication port and display;
a narrow band width data link over which compressed video data from the optical code reader are communicated to the communication port of the host terminal; and
at least one processor for decoding the optical code captured at least partially by at least the image data. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 36, 37)
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14. A method for reading an optical code disposed on an object and obtaining at least one physical parameter of said object, comprising the steps of:
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providing an optical code reader configured for acquiring image data including data corresponding to at least a portion of a target optical code and video data, and outputting the video data at at least three frames per second; and
performing motion detection using the optical code reader comprising the steps of;
positioning an image sensor of the optical code reader so that a field of view of the image sensor includes a region to be monitored for motion;
switching the optical code reader from an optical code reading mode for processing the image data to a video mode for processing the video data;
analyzing video data corresponding to the field of view of the image sensor comprising;
identifying changes between sets of frames of the video data corresponding to the field of view; and
monitoring the frequency of the changes between the sets of frames of the video data corresponding to the field of view to identify frequency changes indicative of the movement of objects of interest in the field of view. - View Dependent Claims (15, 31, 32, 33)
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16-30. -30. (Canceled)
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34-35. -35. (Canceled)
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38. An imaging device for reading optical codes and providing video image signals comprising:
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an image sensor having a field of view;
a manually actuated trigger switch for initiation of reading an optical code in the field of view of the image sensor;
output circuitry for selectively outputting one of video data generated by the image sensor at at least three image frames per second corresponding to a dynamic two dimensional image in the field of view of the image sensor; and
data corresponding to the reading of the optical code. - View Dependent Claims (39, 40)
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Specification