Patent application number | Description | Published |
20090084853 | Method and System for Optimizing System Settings of a Laser Scanner Control System - A scanning device includes a laser source emitting a laser scanning beam, a movable scanning mirror reflecting the laser scanning beam towards an on object to be scanned, a mirror moving element moving the movable scanning mirror and a controller receiving an input corresponding to a range estimate from the scanning device to the object and adjusting a setting of the scanning device based on the range estimate. | 04-02-2009 |
20090153385 | Method and System for a Configurable Communications Interface - An electronic device having a receiver generating an analog signal from collected image data, a digitizer generating a digital signal from the analog signal and a micro-controller receiving the analog signal and the digital signal and generating a corrected digital signal, wherein the device outputs one of the digital signal and the corrected digital signal. | 06-18-2009 |
20090188979 | Laser Scanner with Synthesizable Higher Scan Rate - A method for receiving a first input signal including an analog bar pattern at a first scan rate and generating a first output signal including digital bar patterns at a second scan rate. A device having a digitizer receiving an analog bar pattern at a first scan rate and outputting, at the first scan rate, a plurality of digital bar patterns corresponding to the analog bar pattern and a processor receiving the plurality of digital bar patterns and generating a modified digital bar pattern at a second scan rate, the modified digital bar pattern including the plurality of digital bar patterns. | 07-30-2009 |
20100066275 | METHOD AND APPARATUS FOR CONTROLLING MIRROR MOTION IN LIGHT SCANNING ARRANGEMENTS - A method and apparatus of driving a motor in a light scanning arrangement. The method includes the following steps: (1) driving a drive coil with a drive signal to oscillate a scan mirror and a light beam reflected from the scan mirror; (2) generating a feedback signal having zero crossings during oscillation of the scan mirror by a feedback coil in proximity to the drive coil; (3) integrating the feedback signal to generate an integrated feedback signal; and (4) processing the integrated feedback signal to generate a periodic drive signal that has the same time period as the feedback signal. | 03-18-2010 |
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 |
20120170093 | METHOD AND APPARATUS FOR CONTROLLING MIRROR MOTION IN LIGHT SCANNING ARRANGEMENTS - A method and apparatus of driving a motor in a light scanning arrangement. The method includes the following steps: (1) driving a drive coil with a drive signal to oscillate a scan mirror and a light beam reflected from the scan mirror; (2) generating a feedback signal having zero crossings during oscillation of the scan mirror by a feedback coil in proximity to the drive coil; (3) integrating the feedback signal to generate an integrated feedback signal; and (4) processing the integrated feedback signal to generate a periodic drive signal that has the same time period as the feedback signal. | 07-05-2012 |
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 |
20140126594 | KILLSWITCH ARRANGEMENT FOR AND METHOD OF REGULATING LASER OUTPUT POWER IN ELECTRO-OPTICAL READERS - Output power of a laser beam emitted by a laser in an electro-optical reader is regulated by storing a killswitch byte in non-volatile memory, and by checking whether the killswitch byte is in a default state or a kill state prior to performing reading. A controller detects a fault condition and responsively changes the killswitch byte to the kill state, in order to permanently deenergize the laser and to maintain the laser permanently deenergized after the killswitch byte has been changed to the kill state. | 05-08-2014 |
20140332592 | METHOD AND SYSTEM FOR OPTIMIZING SYSTEM SETTINGS OF A LASER SCANNER CONTROL SYSTEM - A scanning device includes a laser source emitting a laser scanning beam, a movable scanning mirror reflecting the laser scanning beam towards an on object to be scanned, a mirror moving element moving the movable scanning mirror and a controller receiving an input corresponding to a range estimate from the scanning device to the object and adjusting a setting of the scanning device based on the range estimate. | 11-13-2014 |
20140339310 | APPARATUS FOR AND METHOD OF ELECTRO-OPTICALLY READING A TARGET IN THE PRESENCE OF AMBIENT LIGHT BY SUPPRESSING THE AMBIENT LIGHT - A reader for electro-optically reading a target in the presence of ambient light to be suppressed, includes a laser for emitting a laser beam, a scan component for scanning the laser beam across the target, a photodetector for detecting return laser light from the target to generate an information signal bearing information related to the target, and for concomitantly detecting the ambient light to generate an ambient light signal, and signal processing circuitry for measuring the ambient light signal, for processing both the information signal and the ambient light signal in one mode of operation when the measured ambient light signal is below a threshold, and for suppressing the ambient light signal and for processing only the information signal in another mode of operation when the measured ambient light signal at least equals the threshold. | 11-20-2014 |
20140339311 | APPARATUS FOR AND METHOD OF ELECTRO-OPTICALLY READING A TARGET IN THE PRESENCE OF AMBIENT LIGHT BY REJECTING THE AMBIENT LIGHT - A reader for electro-optically reading a target in the presence of ambient light to be rejected, includes a laser for emitting a laser beam, a scan component for scanning the laser beam over a scan angle across the target, a photodetector for generating an output signal by detecting return laser light from the target to generate an information signal bearing information related to the target, and by concomitantly detecting the ambient light to generate an ambient light signal, and signal processing circuitry for measuring the ambient light signal to determine a threshold, for processing the output signal by passing the output signal through a filter having a bandwidth, and for rejecting the ambient light signal from the output signal by adjusting the scan angle and/or the bandwidth when the ambient light signal exceeds the threshold. | 11-20-2014 |