A radio-frequency identifier tunable by dielectric inserts (3), includes a fixed part (92) and a key (9), the fixed part (92) of includes an indication element (91) and a decoding device (8), which includes an electrical supply unit (84), an evaluation and control unit (83), a decoding device (82) and a control element (81), herein the decoding device (8) is connected to a receiver (7), which includes an antenna (71), an input amplifier (72) and a block (73) of filters and circuits. The decoding device (8) is further connected with a receiver (6), which includes an antenna (61), an output amplifier (63) and a signal generator (62). The key (9) includes at least one carrier (32) connected with at least one insert (3) having at least one additional dielectric block (20) modified on its surface or at least one opening (200) formed inside the insert (3). The dielectric block (20) includes an additional dielectric block (21).

A method of waste separation includes irradiating the waste by a source of radiation, capturing an image of the waste when irradiated by the source of radiation; where an item in the waste is provided with a pattern, the pattern being provided in or on a surface of the item, the pattern forming a repetition of dots, a code being stored in a sequence of adjacent ones of the dots, processing the image to detect the pattern; deriving the code from the sequence of adjacent ones of the dots of the pattern; separating in accordance with the code the item the pattern from the waste. The pattern may be a relief pattern. The relief pattern may comprise a pattern of bumps and recesses. The pattern, such as in a form of a relief, may also be applied to identify the item.

In some aspects, a colored coded analyte sensor is provided. The analyte sensor has a body and a plurality of machine-readable colored codes associated with the body. The colored codes may contain red, green, and blue hues, which are discernable into coded information. The coded information may include the analyte sensor model, analyte sensor calibration constant, expiration or manufacture date of the analyte sensor, analyte sensor counterfeiting codes, warnings, messages to the user, etc. Colored code reading systems, apparatus and methods for reading such color-coded information associated with the analyte sensor are provided, as are numerous other aspects.

An object bearing a three-dimensional rotatably-readable encoding of data configured for optical rotational machine-reading, the object being a subject of the data, the encoding of data including a multiplicity of three-dimensional shapes formed on a label adhered to a surface of the object, the surface being arranged for rotation in a plane coinciding with the surface, the multiplicity of three-dimensional shapes being formed to reflect light impinging thereupon while the surface is rotated, characteristics of the reflected light representing data encoded within the multiplicity of three-dimensional shapes.

Systems and methods for facilitating tag authenticity validation. The methods comprise: detecting a tag's arrival/presence at a waypoint along a supply chain path; obtaining a ChainStart Value and a first ChainEnd Value from the tag; generating a public key and a private key; transforming the first ChainEnd Value into a second ChainEnd Value using the private key; storing in a data store at least a hash of the ChainStart Value, a hash of the second ChainEnd Value, and the public key as a transaction record entry; causing the first ChainEnd Value of the tag to be replaced with the second ChainEnd Value; and validating the tag's authenticity at a second waypoint along the supply chain path using at least the ChainStart Value, the second ChainEnd Value, and the transaction record entry comprising the hash of the ChainStart Value, a hash of the first ChainEnd Value and the public key.

Embodiments related to local tone mapping for symbol reading. A local pixel neighborhood metric is determined for at least one raw pixel in a region-of-interest, which identifies on one or more raw pixels near the at least one raw pixel. A local mapping function is determined for the at least one raw pixel that maps the value of the raw pixel to a mapped pixel value with a mapped bit depth that is smaller than the bit depth associated with the raw image. The local mapping function is based on a value of at least one other raw pixel near the at least one raw pixel within the local pixel neighborhood metric, and at least one parameter determined based on the raw image. A mapped image is computed for the region-of-interest by applying the local mapping function to the raw image.

A mobile computing device enabled by a customizable data cognition layer (DCL) software program to convert input information from a variety of sensors into real-time contextual messages is disclosed. The DCL software incorporates customizable software components known as plug-ins to expand the use of the mobile computing device.

Methods and apparatus are disclosed for embedding static information (such as serial numbers, etc.) on objects by modifying their exterior shape slightly, dubbed surface modulation. Data is embedded when the object is created and can then be read using readers with the appropriate resolution. According to one example of the disclosed technology, a method of embedding data expressed as a binary sequence onto an object surface includes establishing a coordinate system over an object surface, computing a transform of the coordinate system to a frequency domain, mapping the binary sequence to an integer value, replacing the highest frequency coefficient of the transform with the integer value, computing an inverse of the transform, producing a vector expressed in the coordinate system, and fabricating at least a portion of the object surface according to the vector.

An indicia reading device for decoding decodable indicia includes an illumination subsystem, an aimer subsystem, an imaging subsystem, a memory, and a processor. The illumination subsystem is operative for projecting an illumination pattern. The aimer subsystem is operative for projecting an aiming pattern. The imaging subsystem includes a stereoscopic imager. The memory is in communication with the stereoscopic imager and is capable of storing frames of image data representing light incident on the stereoscopic imager. The processor is in communication with the memory and is operative to decode a decodable indicia represented in at least one of the frames of image data. The stereoscopic imager is configured to capture multiple images at a baseline distance apart to create three-dimensional images with depth information of the decodable indicia.

A computer-implemented method includes obtaining one of image information of a recording medium placed in a sensing area and tag information attached to the recording medium; obtaining environmental control information corresponding to the obtained one of image information and tag information from a storage; and based on the obtained environmental control information, controlling one or more of a light-emitting device, a display device, an audio device, a temperature control device, an air-flow control device, a vibration device, and an aroma emitting device that are disposed around the sensing area.