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 Laser based PCMCIA data collection system with automatic triggering for portable applications and method of use

Details
Inventors: Plesko, George A.;
Assignee: GEO Labs, Inc. (Media, PA)
Primary Examiner: Gross; Anita Pellman
Assistant Examiner: Frech; Karl
Attorney, Agent or Firm: Reed Smith Shaw & McClay LLP

A high speed non-contact beam scanning data acquisition memory card is disclosed. The device possesses the ergonomic benefits of a a card, yet can scan a wide angle moving beam across an information-bearing target in one or two dimensional scan patterns such as lines, rasters or other patterns in order to read information therefrom. The device is well suited for reading one or two dimensional bar-code or other printed matter where great portability as in medical records acquisition is desired. In order to achieve the high density electro-optical packaging necessary for its high performance to size ratio the present device employs a low profile scan module which is turned on by novel methods. Collected information is processed by signal processing electronics and stored in solid state low power memory devices. Novel triggering and scan actuating methods are also disclosed as are novel integrated scanning applications. In one embodiment components are integrated into a thin PCMCIA card or pen type scan device. Communication from the device is achievable by a cable or by wireless means.

DETAILED DESCRIPTION 1.
Objects of the Invention It is a general object of this invention to provide moving light beam non-contact bar-code scan heads with light collectors and circuitry integrated with data collection sensors and data storage devices.
It is another object of this invention to provide a small integrated non contact scan module on the order of three millimeters thick which can fit into a PCMCIA data collection card terminal.
Another object of this invention is to provide a scanning method utilizing a non-contact, wide-angle beam scanning device in which a beam is caused to scan its target many times per second, thereby allowing the user to raster the scan past an area in which a bar-code is located thereby eliminating the need to initiate scanning then carefully position the scan line accurately upon the barcode as is done with prior art portable scanners.
Another object of the invention is to provide power saving actuating and triggering methods adapted for rapid data acquisition in portable beam scan systems.
Still another object of the present invention is to provide automatic methods for initiating scanning and triggering of barcode readers custom adapted to particular applications described herein.
A further object of the invention is to provide compact scan modules and scanning elements packageable into equipment as small as a pen, card, or other light weight data acquisition devices.
Yet another object of the present invention is to provide a medical data gathering terminal in the form of a PCMCIA card for the health care industry.
Another object of the invention is to provide a portable gas sampling head with an integrated barcode reading sensor so that a point having a barcode tag attached may be identified and immediately sampled with a single hand holdable instrument probe.
Yet another object of the invention is to provide a single part low cost lens mounting and focus system with a slim profile preferably smaller in diameter than the base of a commercially packaged laser diode which is field replaceable


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