An illustrative system may include a TDC configured to monitor for an occurrence of a photodetector output pulse during a measurement time window that is within and shorter in duration than a light pulse time period, the photodetector output pulse generated by a photodetector when the photodetector detects a photon from a light pulse having a light pulse time period; a PLL circuit for the TDC and having a PLL feedback period defined by a reference clock, the PLL circuit configured to: output a plurality of fine phase signals and output one or more signals representative of a plurality of feedback divider states during the PLL feedback period; and a precision timing circuit configured to adjust, based on one or more of the fine phase signals and/or the feedback divider states, a temporal position of the measurement time window within the light pulse time period.

Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.

A method of automatically setting up a code reading device that has an image sensor and a control and evaluation unit, wherein an example image of an example object arranged in the field of view of the image sensor and having an example code is recorded by the image sensor and at least one recording parameter and/or at least one decoding parameter for the operation of the code reading device is set with reference to an evaluation of the example image. In this respect, further example images are generated from the example image by calculational variation and the at least one recording parameter and/or the at least one decoding parameter is/are set with reference to an evaluation of the further example images.

An exemplary system includes a photodetector configured to generate a photodetector output pulse when the photodetector detects a photon from a light pulse having a light pulse time period, a TDC configured to monitor for the occurrence of the photodetector output pulse during a measurement time window that is within and shorter in duration than the light pulse time period, a PLL circuit for the TDC, and a precision timing circuit connected to the PLL circuit and configured to adjust, based on at least one signal generated within the PLL circuit, a temporal position of the measurement time window within the light pulse time period.

An optical communication apparatus includes: a reception unit that receives, from a transmission apparatus which transmits a light signal including predetermined information, the transmitted light signal; a multipath removal unit that recognizes, when detecting a plurality of images having the same optical information in the received light signal, the light signal due to a reflection wave based on at least one of a luminance of the light signal, a size of an image corresponding to the light signal when receiving at the reception unit, and a propagation distance of the light signal and removes the light signal due to the reflection wave; and an control unit that acquires, from the light signal received by the reception unit, information based on the light signal obtained by removing the light signal due to the reflection wave by the multipath removal unit.

A system, method, and computer program for monitoring and corrupting a data stream, includes a data stream transmitting device having a barcode scanner that transmits a stream of data corresponding to a scanned barcode; a data stream receiver device having a barcode processing system that receives the stream; and a monitoring and corrupting device coupled therebetween having a database storing rules for detecting and corrupting patterns of data in the stream, and which monitors the stream, and based on the rules determines if the stream is unwanted, and if so corrupts the stream and transmits the corrupted stream to the barcode processing system so that the barcode data stream cannot be correctly received by the data stream receiver device. Otherwise, if the stream of data is wanted, the stream of data is allowed to be correctly received by the data stream receiver device.

Products associated with targets to be read by image capture are processed in a workstation having a window, a solid-state imager looking at a field of view extending through the window to a target to be imaged, and an illumination system for illuminating the field of view. A proximity system detects a product associated with the target in a selected zone outside the window. The proximity system has an infrared (IR) emitter for emitting IR light into an IR emission field, and an IR sensor for sensing return IR light within an IR detection field that intersects the IR emission field in the selected zone. A controller energizes the illumination system in response to the detection of the product in the selected zone, and processes return illumination light captured in the field of view by the imager.

A barcode reader may perform image processing functions to generate distinct image data records from the frame of image data of a barcode, select an image data record from the distinct image data records and decode the selected image data record. Each image data record may be generated by applying a distinct image processing function to the frame of image data. The barcode reader may capture multiple frames of image data in sequence based on image capture parameters. At least one of the multiple frames of image data may be captured with a distinct parameter value. The image capture parameters may include an exposure setting, a gain setting, a resolution setting, and/or an illumination setting.

A method of operating an indicia reader includes reading at least one indicia, the indicia having an encoded executable software program; storing the encoded executable software program into memory of the indicia reader; and running the encoded executable software program.

Examples disclosed herein provide a scanning device with ergonomic features. As an example, the scanning device includes a rear housing section, a grip housing section, and a lower housing section, all coupled to each other. The rear housing section includes a trigger disposed on an end of the rear housing section, for activating the scanning device. A perimeter of the grip housing section includes the ergonomic features, and an end of the lower housing section opposite from the end of the rear housing section includes an optical scanner.