A sensor-augmented two-dimensional barcode includes a layer provided on a substrate comprising a two-dimensional error-correcting barcode symbol. The bar code symbol further includes a barcode region, an empty region, and a dynamic region. The barcode region includes a plurality of modules in a static color state and the empty region has an area. Additionally, the dynamic region is provided on the substrate and positioned within the area of the empty region. The dynamic region includes a dynamic indicator having a chemistry that is configured, responsive to the occurrence of an environmental condition, to undergo a chemical or physical state change between an initial state and an end state, causing a change in the color state of the dynamic indicator. Additionally, the color state indicates exposure to the environmental condition.

There is provided a non-transitory computer readable storage medium tangibly embodying a machine-readable image having data encoded therein and embedded with a graphic, the machine-readable image adapted to be detected by a reader for decoding said encoded data, including: the graphic associated with an image descriptor calculated based on a chosen area of the graphic, the image descriptor being used in a reading process of said machine-readable image; a plurality of function patterns; and a plurality of dot modules having decoded values corresponding to at least said encoded data, the dot modules being positioned in one or more encoding regions of the machine-readable image relative to the function patterns and the chosen area of the graphic.

According to one embodiment, a barcode generation device includes an interface and a processor. The interface receives a barcode display instruction. The processor generates a basic barcode in response to the display instruction received by the interface, generates a plurality of barcodes in which noise is superimposed at different positions on the basic barcode, determines whether there is misreading in an image scanned by a barcode reader on a screen on which the plurality of barcodes are sequentially displayed, and sequentially displays the plurality of barcodes on a display device when it is determined that there is no misreading.

An object with an icon thereon encodes a bit sequence. The icon comprises a plurality of concentric rings, each of the plurality of concentric rings is divided into a plurality of data sectors. Each of the plurality of data sectors is associated with a corresponding bit in the bit sequence, and each of the plurality of data sectors encodes the corresponding bit based on the presence or absence of a line segment in the sector. The plurality of concentric rings further comprises at least three anchor sectors on one or more of the plurality of concentric rings, the at least three anchor sectors comprise an anchor mark. The plurality of concentric rings further comprises one or more error correction sectors, each of the one or more error correction sectors encodes a corresponding error correction bit based on the presence or absence of a line segment in the error correction sector.

In some examples, an article includes a substrate and a plurality of optical element sets embodied on the substrate, wherein each optical element set includes a plurality of optical elements, wherein each respective optical element represents an encoded value in a set of encoded values, wherein the set of encoded values are differentiable based on visual differentiability of the respective optical elements, wherein each respective optical element set represents at least a portion of a message or error correction data to decode the message if one or more of the plurality of optical element sets are visually occluded, and wherein the optical element sets for the message and error correction data are spatially configured at the physical surface in a matrix such that the message is decodable from the substrate without optical elements positioned within at least one complete edge of the matrix that is visually occluded.

A method of generating dimensioning assist information for an item includes: obtaining data associated with a physical size of a graphical dimensioning aid associated with the item; generating dimensioning assist information by encoding the data into a machine-readable data object carried by the item. A method of dimensioning an item includes, at a dimensioning system: capturing an image of the item and the graphical dimensioning aid carried by the item; detecting an edge of the item within the captured image; determining a measurement of the edge; detecting the graphical dimensioning aid within the captured image; determining a measurement of the graphical dimensioning aid; decoding a physical size of the graphical dimensioning aid from a machine-readable data object carried by the item; and dimensioning the edge based on the measurement of the edge, the measurement of the graphical dimensioning aid, and the physical size.

A two-dimensional code includes: a first code symbol coding first information being valid information according to a first standard; a terminator pattern indicating an end of the valid information according to the first standard; and a second code symbol arranged after the terminator pattern in a region in which the valid information can be arranged according to the first standard and coding second information being valid information according to a second standard different from the first standard. The first information may be output data, and the second information may be non-output data.

Methods, systems, and apparatus for combining preprinted information together with coded sensor information within a two-dimensional barcode. The sensor information may be of an environmental, physical or biological nature, and records a cumulative change in status of the environmental or biological condition to which the labeled product has been exposed. A sensor dye chemistry is employed that undergoes a continuous chemical or physical state change in response to the occurrence of the environmental condition. The continuous change is between an initial state and an end state causing a change in the color state of the sensor dye embedded within the sensor-augmented two-dimensional barcode, encoding sensor digital information. Sensor information is recovered utilizing the error-correction feature during barcode decoding.

A recording tape cartridge includes a case configured by first and second halves being joined to each other first and second peripheral walls are butted against each other and stores a reel, a label surface formed of a first half label surface of the first peripheral wall and a second half label surface of the second peripheral wall on a side opposite to a loading direction of the case to a drive device and that allows a barcode label with a one-dimensional or two-dimensional barcode to be attached thereto, and a reference surface formed on a bottom plate and is used for positioning the case in a thickness direction in a case of being loaded into the drive device. The first or second half label surface is inclined at one degree or more with respect to a vertical plane perpendicular to the reference surface in a side view.

A method of generating dimensioning assist information for an item includes: obtaining data associated with a physical size of a graphical dimensioning aid associated with the item; generating dimensioning assist information by encoding the data into a machine-readable data object carried by the item. A method of dimensioning an item includes, at a dimensioning system: capturing an image of the item and the graphical dimensioning aid carried by the item; detecting an edge of the item within the captured image; determining a measurement of the edge; detecting the graphical dimensioning aid within the captured image; determining a measurement of the graphical dimensioning aid; decoding a physical size of the graphical dimensioning aid from a machine-readable data object carried by the item; and dimensioning the edge based on the measurement of the edge, the measurement of the graphical dimensioning aid, and the physical size.