Resources Contact Us Home
Automatic hand-supportable code symbol scanning device with improved laser beam pointing efficiency

Image Number 17 for United States Patent #5468951.

Disclosed is a fully automatic bar code symbol reading system having an hand-supportable laser bar code reading device which can be used in either an automatic hands-on mode of operation, or in an automatic hands-free mode of operation. The system includes a scanner support frame for supporting the hand-supportable device in a user-selected mounting position, and permits complete gripping of its handle portion prior to its use in the hands-on mode of operation. In general, the hand-supportable bar code reading device has long-range and short-range modes of object detection, bar code presence detection and bar code symbol reading. In the illustrative embodiment, the long-range mode is automatically selected when the hand-supportable bar code reading device is placed within the scanner support stand during the automatic hands-free mode of operation. Whenever the hand-supportable bar code reading device is picked up from the support stand and used in its hands-on mode of operation, the short-range mode is automatically selected to provide CCD-like scanner emulation. When used in either mode of operation, the automatic bar code reading device is capable of reading, in a consecutive manner, one or more bar code symbols on an object, while preventing multiple reading of the same bar code symbol due to dwelling of the laser scanning beam upon the bar code symbol.

  Recently Added Patents
Transmission apparatus, receiving apparatus, method, and storage medium
Method of controlling mechanical mechanisms of optical storage apparatus for peak power/current reduction, and related optical storage apparatus and machine-readable medium
Method and apparatus for information exchange over a web based environment
Preparation process of transition metal boride and uses thereof
Content reproduction apparatus and content processing method therefor
Doherty amplifier circuit
Audio and music data transmission medium and transmission protocol
  Randomly Featured Patents
Method for improved die release of a semiconductor device from a wafer
Semiconductor device with two barrier layers formed between copper-containing line layer and aluminum-containing conductive layer
Illumination apparatus and projection-type image display apparatus
Methods of attaching or grafting carbon nanotubes to silicon surfaces and composite structures derived therefrom
Topoisomerase I
Anchoring retainer for threaded fasteners
Spread spectrum communication system having a minimized bit error rate
Sports racket
Laminated electronic component and method for manufacturing the same
Remote control system for controlling tape playback apparatus on the basis of time code data recorded on the recording tape with the information data to be reproduced