摘要:
A user is alerted to context-based transactional information under which products are to be transacted at a point-of-transaction site by a speaker on an electro-optical reader. The speaker announces, as an audible message, to the user a detailed context under which each product identified to the reader is to be transacted. The audible message is broadcast as a sound wave either corresponding to a pattern of original speech, or to a sound effect. The detailed context can, for example, be a reminder to deactivate an electronic article surveillance (EAS) tag associated with each identified product, or a reminder that the identified product is on sale.
摘要:
A multicamera imaging-based bar code reader for imaging a target bar code on a target object features: a housing supporting a plurality of transparent windows and defining an interior region, a target object being presented to the plurality of windows for imaging a target bar code; an imaging system including a plurality of camera assemblies coupled to an image processing system, each camera assembly of the plurality of camera assemblies being positioned within the housing interior position. Each camera assembly includes a sensor array and an imaging lens assembly for focusing a field of view of the camera assembly onto the sensor array and wherein the sensor array is read out at a predetermined frame rate. The predetermined frame rate of at least one camera assembly is less than the predetermined frame rates of the other camera assemblies.
摘要:
The present disclosure provides a rotating-polarization reflector-backed Radio Frequency Identification (RFID) loop antenna apparatus and method. The loop antenna apparatus and method provides high gain (i.e., maximizing read distances at lowest power), directionality (i.e., ability to focus on specific areas), orientation insensitivity (i.e., ability to read RFID tags in any direction or orientation) while occupying minimal volume in overhead configurations. In an exemplary embodiment, the loop antenna apparatus includes a reflector and a loop element with the reflector configured to reflect downward RF energy from the loop element. Antenna polarization is controlled by a feed location on the loop element and antenna pattern is controlled by the reflector. Thus, orientation insensitivity may be achieved without changing the antenna pattern by rotating the feed location and not the reflector.
摘要:
A compact hybrid imaging lens assembly captures return light from a target over a field of view of a linear array of image sensors of a solid-state imager, and projects the captured return light onto the array during electro-optical reading of the target. The assembly includes a plastic lens for optical aberration correction, a glass lens spaced away from the plastic lens along an optical axis, and an aperture stop between the lenses and having an asymmetrical aperture through which the optical axis extends. The glass lens has substantially all the optical power of the imaging lens assembly for thermal stability, and the plastic lens has substantially no optical power. A holder holds the lenses and the aperture stop away from the array. Alignment elements on the plastic lens align the asymmetrical aperture relative to the linear array.
摘要:
An arrangement for, and a method of, electro-optically reading different types of targets by image capture, include an imaging assembly for capturing an image of a target over a field of view, and a controller for automatically distinguishing between the different types of targets, for decoding a symbol if the target being imaged is a symbol target, and for identifying and processing individual fields on a form if the target being imaged is a form target.
摘要:
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.
摘要:
A device and method provides predictive visual indicators. The method includes displaying a user interface on a pressure sensitive touch screen display device of an electronic device. The user interface includes a plurality of contact areas. The method includes receiving a first touch input data on a first contact area. The first touch input data includes force data. The method also includes determining a second contact area as a function of the first touch input data and the first contact area. The second contact area is indicative of a prediction for a second, subsequent touch input data. The method includes displaying at least one predictive visual indicator that corresponds to the second contact area in response to the prediction.
摘要:
A mobile device is described. The mobile device includes a handle for gripping the mobile device with fingers of one hand. A display is oriented substantially parallel to a long axis of the handle such that a thumb of the one hand is capable of touching at least a portion of the display when the fingers of the one hand grip the handle of the mobile device. A data acquisition device is positioned so as to capture product information from an object located on an opposite side of the display.
摘要:
A mobile device is described. The mobile device includes a housing having a pistol grip portion. A data acquisition device is positioned in the housing adjacent to the pistol grip portion. The data acquisition device is adapted to acquire data from an object. The data acquisition device generates an electrical signal that is representative of the data. A control activates the data acquisition device. A processor receives the electrical signal from the data acquisition device. A support is worn on a torso of a user. The support supports the housing by the pistol grip portion such that the data acquisition device is positioned to acquire data from the object when the object is located in front of the torso of the user. The support enables hands-free operation of the mobile device.
摘要:
An apparatus includes an imaging sensor having photosensitive elements for detecting light from the target object through an imaging lens arrangement to create first pixel data during a first time period when the extended aiming pattern is projected on the target object. The apparatus also includes a controller for processing the first pixel data to estimate a feature-size of the extended aiming pattern in an image of the target object when the imaging lens arrangement is at a predetermined focus length, and further processing the feature-size along with the predetermined focus length to determine a distance characterizing the separation between the target object and the imaging lens arrangement.