Abstract: An automatic data collection device is provided for reading barcodes, matrix codes, stacked codes, or other machine-readable symbol. The data collection device generates an aiming beam that serves a dual purpose of target locating and data acquisition, such as data acquisition using imaging methods. The aiming beam defines the field of view of the data collection device for imaging. The illumination pattern provided by the aiming beam for imaging can have its shape, size, and/or intensity adaptively changed depending on conditions.

Abstract: A method and apparatus are provided for efficiently encoding source data in radio frequency identification (RFID) systems. The encoded source data may also provide additional functionality such as data error detection and correction. A source data encoding and decoding method for a RFID system having a RFID transponder comprises the steps of obtaining the source data, encoding to provide more efficient data encodation that may also include data error detection and error correction, writing the encoded source data to a RFID transponder, reading the encoded source data from the RFID transponder, and decoding the encoded source data to recover the original source data. The encoding may utilize bar code symbology algorithms or a non-Full ASCII enhanced functionality character set.

Abstract: A machine-readable symbol reader is operable to read one and two-dimensional machine-readable symbols such as barcode or matrix code symbols. The reader includes an imaging subsystem and a scanning subsystem. The reader initially attempts to acquire a symbol operating as a conventional imager. If unsuccessful, the reader then attempts to acquire a symbol operating as operating as a conventional scanner. If unsuccessful, the reader then employs an image sensor array of the imaging subsystem along with a scanning beam produced by the scanning subsystem, operating as a neither a conventional imager nor a conventional scanner.

Abstract: A machine-readable symbol reader for reading machine-readable symbols such as barcode symbols employs a first reflective surface having a first perimeter to create a pointer beam, and a movable second reflective surface with a second perimeter small than the first perimeter to create a scanning beam. The pointer and scanner beams may exist simultaneously and may be formed from a same illumination beam.