Software on an image-capturing device iteratively captures a visual code in a series of visual codes displayed in a repeating progression on a screen of a mobile device. The visual code was generated from a display block that resulted from a partition of an original data file into a series of display blocks of at least a specified size. The software converts the visual code back into a display block and reads a header for the display block, discarding the display block if it has already been captured, as determined by the ordered identifying block number in a header. The software stops the iterative capturing when all of the display blocks in the series have been captured, as determined by the count in the header and coalesces the captured display blocks into the original data file, using an order determined by the ordered identifying block numbers.

A barcode-reading system for a mobile device may include a camera assembly. The barcode-reading system may include a barcode-reading enhancement accessory and a barcode-reading application. The barcode-reading enhancement accessory may be securable to the mobile device and may be configured to provide an indication of license entitlement to the mobile device. The barcode-reading application may be stored in memory of the mobile device and executable by a processor of the mobile device. The barcode-reading application may also be configured to enable an enhanced mode of operation of the barcode-reading application conditional upon determining obtaining the license entitlement from the accessory.

The present invention relates to an image output device having an image quality adjustment function. A method for controlling a mobile terminal so as to control the image quality of a plurality of image output devices according to an embodiment of the present invention comprises the steps of: generating a preview image on the basis of images corresponding to the plurality of image output devices, received through a camera, and extracting image quality information of the plurality of image output devices using the images corresponding to the plurality of image output devices, included in the preview image; and transmitting the extracted image quality information or image quality correction data corresponding to the image quality information to at least one image output device, the image quality of which is to be adjusted, among the plurality of image output devices.

Mobile wireless terminals, such as vehicles in traffic, can determine the relative positions of other vehicles with improved precision by arranging to acquire GNSS (global navigational satellite system) signals simultaneously, and then analyzing the various data sets differentially. Simultaneous acquisition can cancel many important errors such as motional errors of the vehicles, atmospheric distortions, and satellite timebase errors. Differential analysis to determine the relative positions of vehicles (as opposed to their overall geographical coordinates) can reduce errors related to satellite ephemeris and velocity, as well as roundoff errors. Localization with a precision of less than 1 meter can greatly improve collision avoidance while discriminating near-miss scenarios from imminent collisions, according to some embodiments. Messaging examples, in 5G and 6G, to manage the simultaneous acquisition and differential analysis, are provided in examples. Many other aspects are disclosed.

A display device includes a screen. The screen is arranged to display a modifying barcode having a plurality of modifying parallel bars. The screen has a pixel direction and a sub-pixel direction different from the pixel direction. The plurality of modifying parallel bars of the modifying barcode are perpendicular or substantially perpendicular to the pixel direction.

A numerical operation system for a plurality of individuals includes a contactless communication tag each included in a plurality of individuals, a reader allowed to read the contactless communication tag, and a control unit to which a result read by the reader is input, wherein the control unit is configured such as to acquire, from the result read by the reader, at least numerical values each corresponding to the plurality of individuals and operator symbols for operating the numerical values to calculate a total value based on the numerical values and the operator symbols.

A projection system including a first projector and a second projector project images side by side, wherein the first projector includes a first projection section that projects a first image and a first control section that causes the first projection section to project an identification image containing identification information, and the second projector includes a second projection section that projects a second image, an imaging section that captures an image of a range including the projection range of the second projection section to produce a captured image, and a second control section that causes the imaging section to capture an image of the identification image projected by the first projector, acquires the identification information on the first projector based on the captured identification image, and determines the position of the first image relative to the second image based on the position of the identification image in the captured image.

A method for providing a public transport route guide service based on voice is provided, the method comprising the steps of: a method for providing a public transport route guide service based on voice guide, scanning or reading a first public transport information guide terminal that outputs a route information searched by a user's voice and an identification code corresponding to the route information, collecting data corresponding to the identification code and outputting a route guide in sound or voice based on a real-time location of the user terminal, outputting transfer information before reaching to a transfer stop if transfer information exists in the route guide, calling and controlling a second public transport information guide terminal located at the transfer stop to output transfer information; and starting route guide based on the real-time location of the user terminal and closing route guide when reaching to a destination.

A method, apparatus, and a computer product are provided for a location oriented membership code device. The method includes storing, in a memory of a device, one or more identifiers, wherein each of the one or more identifiers is associated with one or more locations; determining that the device is within a range of a location associated with at least two of the identifiers; selecting which of the least two identifiers to retrieve from the memory of the device based at least partially upon past user behavior; and displaying an indication of the selected identifier on a display of the device.

A communication apparatus searches for a device by reading a two-dimensional code displayed by the device and notifies a user to use a direct wireless communication function of the device in a case where the device cannot be detected.