Bar code reader for accurately reading two-dimensional bar code imagesUS5378881 1993年5月28日 1995年1月3日 Olympus Optical Co., Ltd. Bar code reader for accurately reading two-dimensional bar code imagesUS5378881 * May 28, 1993 Jan 3, 1995 Olympus Optical Co., Ltd. Bar code reader for ...
: a code consisting of a group of printed and variously patterned bars and spaces and sometimes numerals that is designed to be scanned and read into computer memory and that contains information (such as identification) about the object it labels … one version of the barcode reader used in...
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A barcode (also bar code) is a machine-readable representation of information in a visual format on a surface. Originally barcodes stored data in the widths and spacings of printed parallel lines, but today they also come in patterns of dots, concentric circles, and hidden in images. Barcode...
View Patent Images: Download PDF 5288985 PDF help US Patent References: 5144119 Instant portable bar code reader September, 1992 Chadima et al. 5038024 Instant portable bar code reader August, 1991 Chadima, Jr. et al. 5021642 Instant portable bar code reader June, 1991 Chadima, Jr. et al...
A hand-held bar code reader includes one or more photosensor arrays which provide a plurality of image sensor portions arranged for receiving images of a bar code through a plurality of selectively usable paths of different focal lengths which are defined by a passive optical system. A distance...
In an optical reader for reading alphanumeric and bar code characters, an area array for scanning alphanumeric data and a single photo sensor for scanning bar code data is formed on the same semiconductor chip. Separate processors are connected to the ar
PURPOSE:To improve the precision of the read test by obtaining bar code data from one bar code of a moving measurement object plural times repeatedly and processing statistical data based on the result. CONSTITUTION:When command to be in the movement test mode is given by operation of a switch...
In some bar code images, the smallest element size may vary across a given bar code object. These deformations might be caused by perspective projection or by deformations of the surface on which the bar code is printed (e.g., barrel distortion on a bottle). By default, the bar code re...
PURPOSE: To provide a portable bar code reader having a two-dimensional image sensor for omnidirectionally reading out a bar code. ;CONSTITUTION: The reader includes a variable image forming optical system 10 and a variable flash illumination optical system 20. A spotter beam 26 is provided to ...