摘要:
The present invention relates to a bar code reading device for reading 1D or 2D bar code symbols. The bar code reading device, in one embodiment, can receive a command to disable symbology reading. In another embodiment, a bar code reading device can have a timercount and an image memory. In one embodiment, a bar code reading device can be configured to read bar code symbols of more than one bar code symbology.
摘要:
The invention relates to a bar code reading device of the type having an imaging assembly including a two dimensional image sensor and which may be moved between varying positions, orientations and angles relative to a substrate. In one embodiment a bar code reading device can be used to obtain an area electronic representation of a substrate including bar code indicia and a signature, and can output an area representation including a representation of a signature. In another embodiment, the bar code reading device can process and output a processed area electronic representation to an output destination. In one embodiment an output destination to which a bar code reading device outputs a processed area electronic representation is a display.
摘要:
The present invention relates to a bar code reading device for reading 1D or 2D bar code symbols. The bar code reading device, in one embodiment, can receive a command to disable symbology reading. In another embodiment, a bar code reading device can have a timercount and an image memory. In one embodiment, a bar code reading device can be configured to read bar code symbols of more than one bar code symbology.
摘要:
An apparatus is provided for reading a bar code of a target. The apparatus can include a matrix type two-dimensional image sensor and a light generator directing light toward the target. Optics can be included to project an image onto the matrix type two-dimensional image sensor. Further, the matrix type two-dimensional image sensor can develop signals responsive to light incident thereon. A memory and a manual trigger can also be provided. The apparatus can be configured so that when the manual trigger is actuated, the apparatus obtains an electronic representation. The apparatus can be configured so that more than one electronic representation can be obtained in response to the manual trigger being actuated.
摘要:
A programmable optical reader in one embodiment can include a program loading component and a program execution component operative to execute an externally generated program, whereby executing the externally generated program includes replacing a portion of the optical reader program. A programmable optical reader in another embodiment can include a two-dimensional image sensor, an image frame memory storing two-dimensional electronic images, and can be configured to be reprogrammed by any one of receipt of reprogramming data from a local host processor or receipt of programming data from an external remote off-site processor.
摘要:
There is provided a bar code reading apparatus having a one-dimensional image sensor. The bar code reading apparatus can include a one-dimensional image sensor comprising a certain number of pexels, an analog-to-digital converter coupled to the sensor, and a processor coupled to the analog-to-digital converter. The analog-to-digital converter in one embodiment can be configured to convert the analog intensity value for each pixel into a digital value represented by an N-bit value, where N is an integer greater than 1. The processor in one embodiment can be configured to extract information encoded in a bar code.
摘要:
In the present invention, a bar code reader captures an initial image map corresponding to a scene, then subjects the initial image map to an interpolation step wherein values for constructed pixels positionally intermediate pixel values of the initial image map are interpolated as a function of the initial image map pixel values bordering the constructed pixels. After an interpolated image map is constructed, the interpolated image map is subjected to a binarization step wherein grey scale pixel values of the interpolated image map are converted into binary (1 or 0) pixel values by way of a thresholding process. In the thresholding process, grey scale pixel values are compared to a threshold in the grey scale range, then set to 1 if they are above the threshold and set to 0 if below the threshold. The pixel values of the resulting binarized interpolated image map are then analyzed to determine the identity of a message which may be encoded in any symbol which may be represented in the binarized interpolated image map.
摘要:
A method and apparatus for autodiscriminating and decoding any of a plurality of 1D linear bar code symbols which use different 1D symbologies and of 2D matrix bar code symbols which use different 2D finder patterns and 2D symbologies. A processor stores a plurality of 1D decoding programs, a plurality of 2D decoding programs, and a parameter table that specifies which of said programs are to be enabled. During 1D autodiscriminating, the processor makes not attempt to decode unknown symbols in accordance with 1D decoding programs that are not enabled. During 2D autodiscrimination, the processor makes not attempt to decode unknown 2D symbols in accordance with 2D decoding programs that are not enabled.
摘要:
In the present invention, a bar code reader captures an initial image map corresponding to a scene, then subjects the initial image map to an interpolation step wherein values for constructed pixels positionally intermediate pixel values of the initial image map are interpolated as a function of the initial image map pixel values bordering the constructed pixels. After an interpolated image map is constructed, the interpolated image map is subjected to a binarization step wherein grey scale pixel values of the interpolated image map are converted into binary (1 or 0) pixel values by way of a thresholding process. In the thresholding process, grey scale pixel values are compared to a threshold in the grey scale range, then set to 1 if they are above the threshold and set to 0 if below the threshold. The pixel values of the resulting binarized interpolated image map are then analyzed to determine the identity of a message which may be encoded in any symbol which may be represented in the binarized interpolated image map.
摘要:
An optical reading apparatus for scanning and decoding data encoded in any of a plurality of types of 1D and 2D bar code symbols. A scanner generates successive blocks of scan data for storage in a scan memory. The scan memory stores at least one complete block of scan data in one address space thereof while a more current block of scan data is being stored in another address space thereof. A processor selects and decodes blocks of scan data in accordance with a selectable one of a plurality of scanning-decoding relationships, at least one of which is a tracking relationship.