Class / Patent application number | Description | Number of patent applications / Date published |
235462060 | Light level adaptation | 30 |
20080277472 | TWO-DIMENSIONAL CODE SCANNER WITH GUIDE ILLUMINATION - A bar code scanner is disclosed which may include an LED. The LED includes a light source that emits light. The bar code scanner may also include a lens set. The lens set includes a back side and a front side. The front side includes a plurality of spherical lobes. When light from the light source is incident on the back side of the lens set, each of the spherical lobes preferably focuses the light into a light beam, which is then generated from each of the lobes. In certain embodiments of the invention, the LED can be mounted on the back side of a circuit board in such a fashion as to protrude through the aperture in the circuit board and then to shine light on the lens set. | 11-13-2008 |
20080290171 | ILLUMINATION APPARATUS FOR AN IMAGING-BASED BAR CODE READER - An illumination apparatus ( | 11-27-2008 |
20090242643 | APPARATUS AND METHOD FOR SYMBOL INFORMATION READING - A symbol information reading apparatus may include an imaging element; an image memory structured to store image data; a position detecting processor structured to fetch the image data and structured to detect a position of symbol information. The position detecting processor may include a temporary area judgment unit that structured to calculate a variation of brightness, and structured to judge a temporary area having a possibility of corresponding to the symbol information; a correlation map creating unit that structured to calculate correlation between areas neighboring in a direction perpendicular to the scanning direction, and structured to create a map showing an area provided with large correlation values; a labeling unit that structured to check presence of a basic barcode on the correlation map, and structured to label an area judged as having the basic barcode; and a position determining unit that structured to detect a position of the symbol information recorded. | 10-01-2009 |
20090289121 | BAR CODE PROCESSING APPARATUS - An image processing apparatus according to one embodiment of the invention includes a first image reading unit configured to read an image from an object to be read by visible light, a second image reading unit configured to read an image from the object to be read by invisible light, a first detection unit configured to detect a background image from a first read image read by the first image reading unit, a registration unit configured to register feature information indicative of a feature of the background image detected by the first detection unit, and a second detection unit configured to detect an image indicative of code information from a second read image read by the second image reading unit on the basis of the feature information registered in the registration unit. | 11-26-2009 |
20100065640 | INFORMATION RECOGNITION PROCESSING APPARATUS AND INFORMATION RECOGNITION PROCESSING METHOD - An information recognition processing apparatus according to an embodiment of the invention includes a storage unit configured to store statistical information indicating results of identification information recognition processing in which an image of a first object to be read is read to acquire a plurality of first read images of different image brightness levels, and recognition of identification information included in the first read image of each brightness level is tried, an image reading unit configured to read an image of a second object to be read to acquire a plurality of second read images of different image brightness levels, and a recognition unit configured to preferentially execute a recognition process of identification information included in the second read image of a predetermined brightness level of the plurality of second read images of the different image brightness levels, based on the statistical information. | 03-18-2010 |
20110068173 | SYSTEM AND METHOD FOR RECOGNIZING DEFORMED LINEAR BARCODES FROM A STREAM OF VARIED-FOCUS VIDEO FRAMES - In a system and method of recognizing a barcode from a stream of video frames, a processor-implemented camera module receives a stream of video frames, with at least one video frame including a barcode. A processor-implemented barcode blur estimate module estimates an amount of defocus blur in a video frame. The processor-implemented barcode blur estimate module further estimates an identity of the barcode. A processor-implemented barcode localization module identifies a region of the video frame containing the barcode. A processor-implemented barcode geometric modeler module generates a geometric model of the barcode that includes an identified barcode deformity. A processor-implemented barcode decoder module decodes the barcode from the video frame using the estimated amount of defocus blur, the estimated identity of the barcode, and the geometric model of the barcode. | 03-24-2011 |
20110309150 | INTELLIGENT INDICIA READER - Operating an indicia reader configured for hand held operation by a user is performed by controlling the indicia reader according to a plurality of configuration setting to: scan information bearing indicia (IBI); provide output scan signals representative of the IBI; attempt to decode IBIs from the output scan signals; tracking a plurality of decoding attempts and the at least one configuration setting used during the decoding attempts; and changing at least one of the plurality of configuration settings in response to the tracking without user intervention. | 12-22-2011 |
20110315771 | ARRANGEMENT FOR AND METHOD OF CONTROLLING MONITOR PHOTODIODE LEAKAGE CURRENT IN LASERS IN ELECTRO-OPTICAL READERS - In an electro-optical reader, an aiming or a scanning laser has an internal laser chip and a monitor photodiode. A controller deenergizes the chip in a deenergized state, and energizes the chip to emit a laser beam with an output power in an energized state. A positive voltage power supply forward biases and maintains the photodiode at a substantially constant positive voltage below a threshold voltage, to support a substantially constant photodiode leakage current in both states. A signal processor supports a total current comprised of a main photodiode current indicative of the output power of the laser beam in the energized state and of the leakage current which flows opposite to the main current, and removes the leakage current from the total current to output only the main current in the energized state. | 12-29-2011 |
20120153024 | ILLUMINATION DRIVER CIRCUIT FOR USING IN IMAGING-BASED BARCODE READER - Illumination driver circuit for using in an imaging-based barcode reader is configured to provide the driving current for the illumination source with a Buck regulator when the driving current is above a threshold current value and to provide the driving current for the illumination source with a linear regulator when the driving current is not above the threshold current value. The threshold current value is substantially close to the smallest current the Buck regulator operative to provide when operating in a continuous mode. | 06-21-2012 |
20120160919 | IMAGING-BASED BARCODE READERS HAVING CURVED WINDOW - An apparatus operative to decode a barcode on a target object includes a mirror located within the housing at a position generally facing both the curved window and the imaging lens arrangement of the scan engine. The curved window is configured to operate together with the mirror to direct any of the illumination light reflected by the curved window away from the imaging lens arrangement to avoid the detrimental hot spots in the image. | 06-28-2012 |
20120187190 | IMAGE READER HAVING IMAGE SENSOR ARRAY - An image reader can include an image sensor array. An image reader in one embodiment can include an optical system capable of directing light reflected from a target onto the image sensor array. An image reader can be used for reading a dataform. | 07-26-2012 |
20120325912 | OPTICAL FILTER FOR IMAGE AND BARCODE SCANNING - Methods for using an optical indicia reading terminal including a housing, a multiple pixel image sensor disposed within the housing, an imaging lens assembly configured to focus an image of decodable indicia on the image sensor, an optical bandpass filter disposed in an optical path of light incident on the image sensor, an analog-to-digital (A/D) converter configured to convert an analog signal read out of the image sensor into a digital signal representative of the analog signal, and processor configured to output a decoded message data corresponding to the decodable indicia by processing the digital signal. | 12-27-2012 |
20130153661 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM STORING IMAGE PROCESSING PROGRAM - An image processing device includes: a memory that stores a program including a procedure; and a processor that executes the program, the procedure including: acquiring an image including a plurality of pixels, and changing luminance of the pixel that is included in either a high luminance part of a barcode region or a low luminance part the barcode region, the barcode region being set on the image, based on a luminance difference between the high luminance part and the low luminance part. | 06-20-2013 |
20130221103 | DECODING METHOD AND DECODING PROCESSING DEVICE - In the decoding method, the photoelectric conversion is performed on the light reflected by a code image, a read signal indicating intensity of the reflected light is produced, and the produced read signal is differentiated to produce a derivative signal. On the assumption of this, the inflection points of intensity of the reflected light in the read signal are detected from the produced derivative signal and peak levels as shown in FIG. | 08-29-2013 |
20130292473 | METHOD AND ARRANGEMENT FOR RETRIEVING INFORMATION COMPRISED IN A BARCODE - A method of retrieving information comprised in a barcode is disclosed. The method comprises detecting that the barcode is present in a first image having a first image quality and capturing a first region, acquiring, when it is detected that the barcode is present, a second image having a second image quality and capturing a second region, wherein the second image quality is higher than the first image quality, and wherein the second region at least partly overlaps the first region, and decoding the barcode based on the second image to retrieve the information. A corresponding program product and a corresponding arrangement are also disclosed along with a communication device comprising the arrangement | 11-07-2013 |
20140027517 | MOBILE TERMINAL AND DECODING METHOD THEREOF - A mobile terminal and a decoding method thereof are disclosed. The decoding method comprises: capturing an image of a target barcode; invoking built-in decoding software to decode the target barcode; determining whether the decoding is successful, wherein if the decoding is successful, then barcode information of the target barcode is displayed and the process ends; and otherwise, if the decoding is unsuccessful, then the target barcode is sent to a decoding server; receiving barcode information obtained by the decoding server through decoding the target barcode; and displaying the barcode information of the target barcode. In this way, the present disclosure can decode various types of barcodes quickly and effectively so that the user can be informed of the barcode information of the various types of barcodes quickly and accurately. | 01-30-2014 |
20140151453 | Devices and Methods Employing Dual Target Auto Exposure - The method includes automatically adjusting a first control parameter in a device for capturing a first plurality of images, automatically adjusting a second control parameter in the device for capturing a second plurality of images such that automatic adjustment of the first control parameter is interspersed with, separate from, and obtained generally concurrently with the automatic adjustment of the second control parameter. The adjustment of the first control parameter being determined differently compared to adjustment of the second control parameter. The method may include attempting to decode a decodable indicia utilizing one or more images of the first and second plurality of images. | 06-05-2014 |
20140158769 | BAR CODE-READING CAPABILITIES OF A PORTABLE, HAND-HELD COMPUTING DEVICE THAT COMPRISES A CAMERA - This patent specification describes an attachment for a camera device. The attachment comprises at least one of a target generating mechanism, a proximity sensor, illumination that is optimized for bar code reading, optics that provide an alternative optical path to the camera device, and a supplementary lens system that is optimized for bar code reading. | 06-12-2014 |
20140203086 | IMAGE READER HAVING IMAGE SENSOR ARRAY - An image reader can include an image sensor array. An image reader in one embodiment can include an optical system capable of directing light reflected from a target onto the image sensor array. An image reader can be used for reading a dataform. | 07-24-2014 |
20140346232 | APPARATUS FOR AND METHOD OF ELECTRO-OPTICALLY READING A TARGET IN THE PRESENCE OF AMBIENT LIGHT - A reader for electro-optically reading a target in the presence of ambient light, includes a scan component for scanning a laser beam across the target, a first filter for passing return laser light from the target and the ambient light to a first photodetector system for generating a first output signal constituted of an information signal and a first ambient light signal, a second filter for passing the ambient light to a second photodetector system for generating a second output signal constituted of a second ambient light signal, and signal processing circuitry for measuring a difference between the first and second ambient light signals, for equalizing the first and second ambient light signals when the difference exceeds a threshold, and for subtracting the second output signal from the first output signal to obtain a receiver output signal substantially constituted only of the information signal. | 11-27-2014 |
20140374484 | METHOD AND APPARATUS FOR RECOGNIZING BARCODE OF DEPOSITION MASK - A method of recognizing a barcode of a deposition mask, includes: receiving a barcode image corresponding to the barcode, the barcode image being associated with a lighting environment; determining that the barcode image is not recognizable; generating, in response to determining that the barcode image is not recognizable, one or more control signals configured to modify the lighting environment; and causing, at least in part, a second barcode image to be generated in association with a modified lighting environment. | 12-25-2014 |
20150053767 | METHOD OF CONTROLLING EXPOSURE ON BARCODE IMAGING SCANNER WITH ROLLING SHUTTER SENSOR - A method includes the following (1) detecting light returned from a target with an imaging sensor during a first frame exposure time period to capture a first image when a first illumination light is projected towards the target; (2) processing the first image to determine the light intensity of a second illumination light; (3) detecting light returned from the target with the imaging sensor during a second frame exposure time period to capture a second image when the second illumination light is projected towards the target; and (4) decoding a barcode in the second image. The light intensity of the first illumination light changes with time at least during part of the first frame exposure time period. | 02-26-2015 |
20150108219 | MACHINE-READABLE SYMBOLS - A variety of forms of machine-readable symbols are disclosed, as well as methods and systems of constructing machine-readable symbols, methods and systems of acquiring machine-readable symbols, and methods and systems of decoding machine-readable symbols. | 04-23-2015 |
20150115034 | DIFFUSE BRIGHT FIELD ILLUMINATION SYSTEM FOR A BARCODE READER - One aspect of the present disclosure is related to a barcode reader that includes a bright field illumination system, a dark field illumination system, and an additional illumination system that is better able to illuminate an area of the reader's field of view between the far zone (where bright field illumination is optimal) and the close zone (where dark field illumination is optimal). In this “center zone,” the dark field illumination may not be bright enough and the bright field illumination may not be diffuse enough for reading a barcode. | 04-30-2015 |
20150339503 | COMPACT IMAGING MODULE AND IMAGING READER FOR, AND METHOD OF, DETECTING OBJECTS ASSOCIATED WITH TARGETS TO BE READ BY IMAGE CAPTURE - Objects associated with targets to be read by image capture are detected without any additional hardware in an imaging module. Return light is captured over a field of view of the module. Images are processed, during an object detection mode, to determine their image brightness from the captured return light. Illumination is emitted from an illumination light assembly at a first power level to determine a first image brightness from a first processed image, and at a different, reduced, second power level to determine a second image brightness from a second processed image. An object is determined to be in the field of view when a difference between the first image brightness and the second image brightness equals or exceeds a detection threshold value. | 11-26-2015 |
20160034735 | DIFFUSE BRIGHT FIELD ILLUMINATION SYSTEM FOR A BARCODE READER - One aspect of the present disclosure is related to a barcode reader that includes a bright field illumination system, a dark field illumination system, and an additional illumination system that is better able to illuminate an area of the reader's field of view between the far zone (where bright field illumination is optimal) and the close zone (where dark field illumination is optimal). In this “center zone,” the dark field illumination may not be bright enough and the bright field illumination may not be diffuse enough for reading a barcode. | 02-04-2016 |
20160055361 | BARCODE SCANNER AND OPERATIONAL METHOD OF THE SAME - A barcode scanner comprises a compensating light source, an image capturing module and a processor. The compensating light source is used to emit a compensating light. The image capturing module is used to capture an original image including an object and to capture a second image under the compensating light. The processor is coupled with the compensating light source and the image capturing module. The processor generates a depth information of the object according to the original image, controls intensity of the compensating light according to the depth information, controls the image capturing module to capture a second image when the compensating light source emits the compensating light, obtains a target information corresponding to a target object according to the depth information, obtains a target image by mapping the target information onto the second image, locates a barcode and analyzes an information of the barcode according to the target image. | 02-25-2016 |
20160063291 | AUTOMATIC TUNING OF SCANNER LIGHTING - Various embodiments herein each include devices, system, methods, and software for automatic scanner lighting tuning. One method embodiment includes determining a distance from a scanning surface to a surface of an item presented for scanning, determining an illumination setting based on the determined distance, and illuminating a scanning field according to the determined setting. Another embodiment is a scanner including a scanning module with a scanning surface imaged by an imaging device and a lighting module including at least one adjustable lighting element that illuminates according a received illumination setting. The scanner further includes a distance determining module that determines a distance between the scanning surface and a presented item and a lighting controller that receives a determined distance from the distance determining module, determines the illumination setting based on the determined distance, and provides the illumination command to the lighting module. | 03-03-2016 |
20160092711 | ATTACHMENT INCLUDING A MIRROR THAT CHANGES AN OPTICAL PATH OF A CAMERA DEVICE - This patent specification describes an attachment for a camera device. The attachment comprises at least one of a target generating mechanism, a proximity sensor, illumination that is optimized for bar code reading, optics that provide an alternative optical path to the camera device, and a supplementary lens system that is optimized for bar code reading. | 03-31-2016 |
20160125216 | SCANNER WITH ILLUMINATION SYSTEM - The present disclosure relates to a scanner with an illumination system, including: a plurality of illumination devices in the illumination system, wherein the plurality of illumination devices illuminate a label; an imager, which captures an image signal reflected from the label and decodes the image signal; and a detector, which detects the intensity of light reflected from the label, wherein if the light intensity is higher than a predetermined threshold, an illumination status of one or more of the plurality of illumination devices is changed. The scanner with an illumination system according to the present disclosure can effectively avoid specular reflection when scanning a barcode on a smartphone screen. | 05-05-2016 |