摘要:
Document information is encoded in a graphic symbol applied to the document. The symbol is read to retrieve the document information which is then translated into a humanly discernible form different from that appearing on the document. In particular, encoded symbols are used to uniquely identify or memorialize persons named on credit cards.
摘要:
A method and apparatus for implementing alerts on a browser running on a portable handheld device is disclosed. The method generates an asynchronous notification action from the server and in response transmits an alert containing a message indicating availability of HTML pages that describe the nature of the alert. The alert is received at a node on a network and translated into the original message. An alert receipt acknowledgment is transmitted to the server. Access to the alert HTML page is provided through a URL containing the appropriate query strings necessary to present the appropriate HTML page. The invention also discloses a wireless local area network (WLAN) adapter associated with a wireless network that receives paging signals from a server on the network and returns an acknowledgment signal back to the server. The invention also discloses a client/server based method of delivering messages initiated by a client. After a connection is established between a client and server, the client requests a message from the server. In response, the server retrieves and returns the message back to the client.
摘要:
Aiming of an imaging reader at direct part markings (DPM) on workpieces is enhanced by emitting an aiming light beam during aiming, and by optically modifying the aiming light beam during the aiming to generate an aiming light pattern having an outer bright region illuminated by the aiming light beam and visible to an operator to enable the operator to manually position the bright region to entirely surround at least part of the DPM, and an inner dark region not illuminated by the aiming light beam and surrounded by the bright region. The dark region contains the part of the DPM code to be imaged and read by the reader after the aiming.
摘要:
A multicamera imaging-based bar code reader for imaging a target bar code on a target object features: a housing supporting a plurality of transparent windows and defining an interior region, a target object being presented to the plurality of windows for imaging a target bar code; an imaging system including a plurality of camera assemblies coupled to an image processing system, each camera assembly of the plurality of camera assemblies being positioned within the housing interior position. Each camera assembly includes a sensor array and an imaging lens assembly for focusing a field of view of the camera assembly onto the sensor array and wherein the sensor array is read out at a predetermined frame rate. The predetermined frame rate of at least one camera assembly is less than the predetermined frame rates of the other camera assemblies.
摘要:
Performance of an imaging reader for electro-optically reading direct part markings on workpieces is enhanced by uniformly illuminating the markings. An illuminator is operative for emitting illumination light of greater and lesser intensity toward the indicia. A diffuser is operative for diffusing the illumination light en route to the indicia. The diffuser includes a plurality of diffusing elements adjacent the illuminator for diffusing the illumination light of greater intensity more than the illumination light of lesser intensity.
摘要:
A system and method for imaging an optical code is provided including the steps of consecutively imaging an optical code respectively using at least a first and a second imaging setting; generating at least first and second sets of image data respectively corresponding to the first and second imaging settings; evaluating at least one of the first and second sets of image data; and selecting at least one of the first and second sets of image data in accordance with the evaluation. The system includes an imaging engine having a lens assembly and a photo sensor array for consecutively imaging an optical code located in a field of view of the imaging engine using at least the first and the second imaging settings, and generating the at least first and second sets of image data respectively corresponding to the first and second imaging settings. The system further includes at least one processor for evaluating the at least one of the first and second sets of image data, and selecting the at least one of the first and second sets of image data in accordance with the evaluation.
摘要:
A subarray of a CMOS imaging sensor array is addressed to detect when a target symbol is fully within a field of view of an imaging reader to improve reader performance at high swipe speeds.
摘要:
An optical code reading system having an auto-exposure system for use with a variable resolution imaging sensor in which very low resolution images are used to determine exposure parameters is presented. The very low resolution images can be transferred much faster than high resolution images which results in a very fast auto-exposure system. The optical code reading system further includes an optical zoom system for zooming in and out of a target without the use of any moveable components. The optical zoom system makes use of a binning and/or subsampling feature of the imaging sensor for zooming in and out of the target. High-speed decoding methodologies are also presented for the optical code reading system. One decoding methodology utilizes low resolution images for performing high-speed decoding. Other methodologies utilize low resolution images and higher resolution images, if the optical code imaged by the low resolution images is not decoded successfully.
摘要:
A laminated composite suitable for use in medical products such as tapes and wraps. The composite includes, for example, a first nonwoven fiber layer, an elastic layer, a melt blown adhesive fiber layer, and a second nonwoven fiber layer. A scrim layer serves as a deadstop, or stretch limit, to prevent over stretching. The non-woven fiber layer(s) and/or the scrim layer form suitable loops for a hook and loop fastening system. The scrim layer in some embodiments is employed to make the composite finger tearable. The melt blown adhesive layer, nonwoven web layer and elastic layer form a breathable, porous elastic composite. Methods of manufacturing the composite are also disclosed.
摘要:
A multicamera imaging-based bar code reader for imaging a target bar code on a target object features: a housing supporting a plurality of transparent windows and defining an interior region, a target object being presented to the plurality of windows for imaging a target bar code; an imaging system including a plurality of camera assemblies coupled to an image processing system, each camera assembly of the plurality of camera assemblies being positioned within the housing interior position. Each camera assembly includes a sensor array and an imaging lens assembly for focusing a field of view of the camera assembly onto the sensor array and wherein the sensor array is read out at a predetermined frame rate. The predetermined frame rate of at least one camera assembly is less than the predetermined frame rates of the other camera assemblies.