Patent ID: 6547146
Filing Date: 2003-04-15
Classification: G06K

Abstract:
A hand-held contact barcode scanner for scanning barcodes, comprising:a photoemitter for shining an optical beam onto a scanning surface, whereby producing a reflected beam; a photodetector responsive to the reflected beam; a screen abutted against the photodetector, having an opening for limiting the amount of light reaching the photodetector; a lens placed in front of the screen for focusing reflected light onto the photodetector; a memory for storing data related to one or more transitions detected in the reflected beam; an infrared (IR) transceiver for transmitting the stored data over an IR link to a host; a processor, operatively coupled to the photodetector, the photoemitter, the memory, and the IR transceiver, configured to permit the scanner to read a barcode when the scanner is moved over the barcode at a lineal speed in the range of one inch/second to five inches/second; a first manually-operated switch, operatively coupled to the processor, for selectively activating the photoemitter in order to read the barcode; and a second manually-operated switch, operatively connected to the processor, for selectively causing the data stored in the memory to be transmitted by the IR transceiver.