Abstract: This invention features both a device and method for reading machine readable code. The device includes a scanning apparatus, a signal processor and a data processor. The scanning apparatus scans the code and outputs a signal representative of at least a portion of the code. The signal processing means processes each of the signals outputted by the scanning means and further provides signal identification data, including a width and position associated with each of the signals, for each successive scan of the code. The data processing means reconstructs the code from the signal identification data for each successive scan of the code, provided by the signal processing means. The data processing means includes a position aligning means for both selecting an element in a previous scan and calculating the position of that element in a successive scan based upon a calculated offset, and means for aligning the successive scan with the previous scan by means of the calculated offset.

Abstract: This invention features a device and method for reading machine readable code, having a plurality of code elements, on an object. The device includes a scanning apparatus, a signal processor and a data processor. The scanning apparatus successively scans the code and outputs a signal representative of at least a portion of the code, for each successive scan of the code. The signal processor processes each of the signals outputted by the scanning apparatus and further provides signal identification data, including a width and position associated with each of the outputted signals, for each successive scan of the code. The data processor reconstructs the code from the signal identification data for each successive scan of the code, provided by the signal processor. The data processor reconstructs the code by both determining the position of a selected code element for a successive scan and by positionally aligning the selected code element with the corresponding element from a prior scan.

Abstract: An multi directional laser scanner apparatus has a frame along with a plurality of lasers removably mounted in circular fashion to the frame for producing a plurality of light beams. A multi-faceted rotating mirror assembly is rotatably mounted to the frame and rotated by an electric motor and is aligned with a plurality of laser output beams. A plurality of fixed mirrors are attached in pairs to the frame and positioned for reflecting the light energy of the laser beam being reflected by the rotatable mirror assembly in a pattern onto a coded surface and positioned for receiving reflected beams from the coded surface and than directing the reflected beams in a reverse path onto the rotating mirror assembly and back towards each laser. A mirror mounted adjacent the output of each laser reflects each returning laser beam onto a photocell mounted to the frame for receiving the reflected signals from the coded surface and the signals are processed to read the coded signals.

Abstract: A rotatable bar code scanner mirror assembly includes a rotatable mirror support frame operatively coupled to an electric motor shaft for rotation with the motor shaft. A plurality of mirrors are attached to the rotatable mirror support frame with each mirror mounted to a frame in a different plane intersecting at least one other plane of a mirror mounted to the support frame. Each mirror is shaped to have a pair of generally flat offset portions, offset from each other, on opposite sides of a center axis and each offset portion is connected with a center mirror portion so that a return laser beam can be reflected off the offset portions and the outgoing laser beam reflected off the center portion so that the outgoing and return beams use the same scanner mirror assembly.