Patent application number | Description | Published |
20090001172 | Reading failure prevention in imaging readers - In an imaging reader for reading a coded symbol located in a range of working distances from the reader, a solid-state imager captures light from the symbol over a field of view, and a controller automatically determines whether an image of the symbol is located entirely within the field of view of the imager, and processes the symbol only when the symbol image is located entirely within the field of view of the imager. | 01-01-2009 |
20090057411 | Imaging system for reading target with multiple symbols - An imaging system for acquiring images of multiple indicia, such as symbols and non-symbols, on a target, such as a label, comprises a solid-state imager having an array of image sensors for capturing light from the indicia on the target over a field of view, and a controller having a stored template that identifies details of the indicia on the target, for controlling the imager to capture the light from the indicia based on the details identified by the template. | 03-05-2009 |
20100102130 | Adaptive power management in imaging systems - An imaging system for, and a method of, electro-optically reading targets, utilize an energizable illuminator for illuminating an illuminated target with illumination light, a solid-state, energizable imager having an array of image sensors for capturing return light from the illuminated target over a field of view, and for generating electrical signals indicative of the captured return light, and a controller for energizing the illuminator and the imager to process the electrical signals into data indicative of the illuminated target. A power reducer is operatively connected to the controller, for adaptively reducing electrical power consumption of the illuminator and/or the controller based on system usage. | 04-29-2010 |
20100108766 | Selective working distance range restriction in imaging system - An imaging system for, and a method of, electro-optically reading a symbol located within a range of working distances from the system, utilize a solid-state imager having an array of image sensors for capturing return light from the symbol over a field of view and for generating an electrical signal indicative of the captured return light, and a controller operative for decoding the electrical signal into data indicative of the symbol, and for determining that the symbol has been successfully decoded. The symbol has a plurality of optical characteristics, such as symbol element size and contrast, which vary with working distance. A memory stores a known set of values of the size and contrast characteristics of the symbol when the symbol lies in a restricted zone within the range of working distances. The controller is further operative, after the symbol has been successfully decoded, for processing the size and contrast characteristics of the decoded symbol, and for determining that the decoded symbol has been successfully read within the restricted zone when each size and contrast characteristic lies within the known set of values stored by the memory. | 05-06-2010 |
20100163625 | Minimizing misdecodes in electro-optical readers - An arrangement for, and a method of, minimizing misdecodes of GS1 DataBar Limited (Databar-limited) symbols in a reader for electro-optically reading symbols of different symbologies, such as Universal Product Code (UPC) Version A (UPC-A) symbols, includes a data capture assembly for capturing light from a target symbol, and for generating an electrical signal indicative of the captured light; and a controller for processing and decoding the electrical signal, and for determining whether the decoded signal is indicative of a Databar-limited symbol, and for determining whether the decoded signal has characteristics indicative of a different symbology, such as the UPC-A symbol, to indicate whether a misdecode of the Databar-limited symbol has occurred. | 07-01-2010 |
20130001290 | OBJECT IDENTIFICATION USING BARCODE READER - A barcode reader for verifying a barcode is attached to an appropriate object particularly suitable for use at a point of sale. A database of expected object signatures in a vicinity of a properly affixed barcode properly is maintained. At a point of sale, the barcode reader obtains an image of a presented barcode (possibly not the correct barcode) and at least a portion of an object to which the presented barcode is affixed. Using data encoded on the presented barcode, the database is accessed to provide an expected signature of the object in the region of the presented barcode. A comparison is made between the expected signature of the object and a sensed signature derived from the image of the object. An improper barcode can thus possibly be identified and further investigation initiated. | 01-03-2013 |
20130026235 | LASER SCANNERS HAVING DYNAMIC AIMING-SCANNING MODE - A method of operating a laser scanner for reading a barcode. The laser scanner is configured to operate in at least two operating modes including a scanning mode and an aiming mode. The method includes operating the laser scanner in the scanning mode after a trigger signal is generated by a trigger on the laser scanner, and decoding the electrical signal that is received from the photodetector when the laser scanner is in the scanning mode. If the electrical signal from the photodetector is not successfully decoded after a first predetermined time period since the trigger signal is generated, alternating the laser scanner between the aiming mode and the scanning mode. | 01-31-2013 |
20130292478 | APPARATUS FOR AND METHOD OF ELECTRO-OPTICALLY READING DIRECT PART MARKING INDICIA BY IMAGE CAPTURE - An apparatus and method electro-optically read indicia, such as a direct part marking (DPM) code, that is raised or sunken relative to a target surface on a target. A solid-state, distance imaging sensor captures a target image comprised of a first set of pixels having first distance values that correspond to a first distance of the code from the sensor, and a second set of pixels having second distance values that correspond to a second distance of the target surface from the sensor. A controller reads the indicia by distinguishing between the first set of pixels and the second set of pixels within the image, by determining abrupt changes in the distance values among neighboring pixels. | 11-07-2013 |
20140001259 | ARRANGEMENT FOR AND METHOD OF PREVENTING SYMBOL MISREADS IN ELECTRO-OPTICAL READERS | 01-02-2014 |
20140042297 | IMAGE CAPTURE BASED ON SCANNING RESOLUTION SETTING IN IMAGING READER - An arrangement for, and a method of, electro-optically reading a target by image capture, employ an aiming assembly for projecting an aiming light pattern on the target that is located within a range of working distances relative to a housing, an imaging assembly for capturing an image of the target and of the aiming light pattern over a field of view, and a controller for determining a distance of the target relative to the housing based on a position of the aiming light pattern in the captured image, for determining a scanning resolution based on the determined distance, for comparing the determined scanning resolution with a scanning resolution setting, and for processing the captured image based on the comparison. | 02-13-2014 |
20140061291 | POINT-OF-TRANSACTION CHECKOUT SYSTEM FOR AND METHOD OF PROCESSING TARGETS ELECTRO-OPTICALLY READABLE BY A CLERK-OPERATED WORKSTATION AND BY A CUSTOMER-OPERATED ACCESSORY READER - A checkout system for, and a method of, processing target data electro-optically readable by a clerk-operated workstation and a customer-operated accessory reader, include a data capture arrangement at the workstation for capturing target data associated with products to be checked out by the clerk in a transaction, and a data capture assembly at the accessory reader for capturing additional target data related to the transaction. A workstation microprocessor processes the target data during an active mode, and stands by during a standby mode. An accessory microprocessor acquires the additional target data, and sends the acquired additional target data to the workstation microprocessor for processing during the standby mode. | 03-06-2014 |
20140061308 | CHECKOUT SYSTEM FOR AND METHOD OF PREVENTING A CUSTOMER-OPERATED ACCESSORY READER FACING A BAGGING AREA FROM IMAGING TARGETS ON PRODUCTS PASSED THROUGH A CLERK-OPERATED WORKSTATION TO THE BAGGING AREA - A checkout system includes a clerk-operated bi-optical workstation through which products having target data are passed to a bagging area, and a customer-operated accessory reader having an accessory window facing the bagging area and a data capture assembly for capturing additional target data of additional targets associated with transaction-related items, particularly over a restricted range of working distances that terminates short of the bagging area, and for preventing the accessory reader from capturing the target data of the products in the bagging area. | 03-06-2014 |
20140151452 | METHOD AND APPARATUS FOR CONTROLLING ILLUMINATION - A method includes transmitting from at least one of the imaging sensors to a controller a short frame data that is collected by the at least one of the imaging sensors when the illumination source is activated to provide the illumination light toward the target object with a first illumination level. The method further includes transmitting subsequently from the at least one of the imaging sensors to the controller a regular frame data that is collected by the at least one of the imaging sensors when the illumination source is activated to provide the illumination light toward the target object with a second illumination level that is determined based upon the short frame data. The size of the regular frame data being at least 50 times larger than the size of the short frame data. | 06-05-2014 |