Abstract: Embodiments herein describe a 2D barcode that overlays text or graphics (e.g., another barcode) while permitting the underlying text or barcode to be read by a user or a barcode scanner. Further, the embodiments herein describe techniques for separating the overlaid 2D barcode from the underlying text or graphics so that the barcode can be identified and decoded. In one embodiment, the blocks forming the 2D barcode are printed (or displayed) using a shade of a color while the text or graphics are printed (or displayed) using a darker shade of that same color.

Abstract: Wearable scanners or readers may be mounted to and operated from at least one extension of the human body, such as a portion of a hand or wrist of a user. The wearable scanners or readers may include one or more manual or automatic actuators for initiating a scanning or reading of a marking on an object. Such actuators may be worn about the portion of the hand or wrist of the user, including within a palm of the hand, or in a ring-like device surrounding at least one finger of the hand. Additionally, the wearable scanners or readers may include optical elements configured to capture images in one or more directions or along one or more axes, and may further include any type of display elements (e.g., touchscreens, LED or LCD displays, or electrophoretic displays) formed in substantially flat or curved shapes.

Abstract: Wearable scanners or readers may be mounted to and operated from at least one extension of the human body, such as a portion of a hand or wrist of a user. The wearable scanners or readers may include one or more manual or automatic actuators for initiating a scanning or reading of a marking on an object. Such actuators may be worn about the portion of the hand or wrist of the user, including within a palm of the hand, or in a ring-like device surrounding at least one finger of the hand. Additionally, the wearable scanners or readers may include optical elements configured to capture images in one or more directions or along one or more axes, and may further include any type of display elements (e.g., touchscreens, LED or LCD displays, or electrophoretic displays) formed in substantially flat or curved shapes.