Abstract: A system and method for reading an optical code is provided. The method comprises the steps of imaging at least one target, including acquiring and processing image data corresponding to a series of at least one frame; storing image data corresponding to respective acquired frames of the at least one frame, including at least image data corresponding to a current frame (Frame(N)) and image data corresponding to a previous frame (Frame(N?1)); receiving an actuation signal during Frame(N) indicating initiation of a read operation; retrieving at least a portion of the image data corresponding to Frame (N?1); and performing a decode operation on the retrieved image data.

Abstract: The combination of a rooftop optical element and a soft edge aperture stop, as well as the introduction of a negative spherical aberration in a positive focusing lens, improve working distance and depth of focus in both moving beam and imaging readers for electro-optically reading indicia such as bar code symbols, especially for close-in symbols, and moreover tend to reduce undesirable light intensity modulation in the beam profile thereby improving reader performance.

Abstract: A compact assembly for electro-optically scanning indicia includes an oscillatable component operative for focusing, and for sweeping, a light beam across the indicia and, optionally, for correcting for scan aberration. A laser diode for emitting the beam is inserted into a central opening surrounded by an electromagnetic coil to conserve space. A magnet on the component interacts with the coil to effect oscillation. A floating flexure returns the component to an equilibrium position.

Abstract: A system and method are provided for scanning an optical code, in which an optical code scanner system includes an ambient light sensor having at least one photo sensor for sensing ambient light conditions and generating at least one first electrical signal corresponding to the sensing of the ambient light conditions, and a photo sensor array having a plurality of photo sensors for sensing light reflected from the target being imaged and generating a plurality of second electrical signals corresponding the sensing of the reflected light.

Abstract: Methods and compositions for detection of microbial contaminants in peritoneal dialysis solutions are provided. The methods and compositions employ modified bioburden testing and the detection of peptidoglycan. A novel cause of aseptic peritonitis is provided—aseptic peritonitis associated with gram positive microbial contamination of a dialysis solution. Peptidoglycan is a major component of a gram positive bacterial cell wall and thus can serve as a marker for gram positive bacteria. In this regard, testing for peptidoglycans can be utilized to effectively prevent peritonitis in patients that use the peritoneal dialysis solutions, such as peritoneal dialysis solutions that contain a glucose polymer including an icodextrin and the like.

Abstract: An imaging arrangement for, and method of, imaging a target at one of a plurality of focal planes, includes a two-dimensional sensor having an array of pixels for converting incident light into electrical signals to be processed into an image of the target, and an optical assembly including a stationary optical element transmissive to the incident light en route to the sensor. The element is fixed relative to the sensor and has a plurality of optical portions respectively arranged in a plurality of patterns relative to a plurality of groups of the pixels. The assembly is operative for focusing the respective groups of the pixels in the respective patterns at respective focal planes spaced apart from one another away from the sensor.

Abstract: A bioptics bar code reader has first and second windows disposed at an angle to each other, a first imager for the first window and a second imager for the second window and first and second optics for directing light from a bar code in a reading area between the windows to the first and second imagers. The two imagers each obtain an image of the bar code in the reading area.

Abstract: A bar code scanning system and method for reading and processing bar code symbology uses a scanning station installed above the check-out stand and a receiving station at some distance away from the scanning station. The scanning station projects light onto a surface of the check-out stand. The projected light can have a well defined border indicating where a user should place items to be scanned. Alternatively, a pattern coincident with the projected light can be projected onto the surface and which includes a target indicating where items should be placed for scanning. Light reflected by items in the target region is processed to decode optical symbology on the item and produce a signal that is representative of said sensed symbology. Information about the scanned item can be processed and displayed by the receiving station for use in, e.g., a point-of-sale transaction.

Abstract: The operating environment of a moving laser beam in a flying spot, electro-optical reader is simulated in a solid-state, sensor-based imaging reader by turning a visible line produced by a light emitting diode on and off prior to capturing a two-dimensional image of a target.

Abstract: A system and method for securing and tracking an electronic device. The system includes hardware, software and firmware components that cooperate to allow tracking, disabling, and other interaction with the stolen electronic device. The system includes an application component, non-viewable component and Basic Input/Output Subsystem (BIOS) component that are present on the electronic device. The BIOS component maintains the secured environment of the application and non-viewable components. If only the application component was provided, a simple low level format of the hard disk drive would remove the application and bypass the security features. The system implements an “application and BIOS” based solution to electronic device security.

Abstract: An imaging and an illuminating engine is provided for an optical code reader to image and illuminate remote target indicia. The engine includes an image sensor for receiving reflected illumination from the remote indicia and at least two illumination assemblies for providing illumination of the remote indicia. Each illumination assembly is capable of providing a number of different outputs, such as light having different wavelengths or different output durations. A transmissive, optical element overlays the engine for preventing light generated by the at least two illumination assemblies from reflecting back towards the image sensor. The imaging engine is an integrated circuit package for easily inserted and interfacing within an optical code reader as a plug-and-play component.

Abstract: An imaging and illuminating engine for an optical code reader to illuminate and image remote target indicia, such as an optical code, is provided. The engine includes an image sensor for receiving reflected illumination from the remote indicia and an illumination assembly for providing illumination of the remote indicia. The illumination assembly is capable of providing a plurality of different outputs, such as light having different wavelengths. The illumination assembly can also be provided with a single illuminating device for providing one illumination output for illuminating substantially the entire field of view. A transmissive, optical element overlays the engine for preventing light generated by the illumination assembly from reflecting back towards the image sensor. The imaging engine is an integrated circuit package configured for easily interfacing within an optical code reader as a plug-and-play component.

Abstract: Prokaryotic FAB G polypeptides and DNA (RNA) encoding such FAB G and a procedure for producing such polypeptides by recombinant techniques is disclosed. Also disclosed are methods for utilizing such FAB G for the treatment of infection, such as bacterial infections. Antagonists against such FAB G and their use as a therapeutic to treat infections, such as staphylococcal infections are also disclosed. Also disclosed are diagnostic assays for detecting diseases related to the presence of FAB G nucleic acid sequences and the polypeptides in a host. Also disclosed are diagnostic assays for detecting polynucleotides encoding FAB G and for detecting the polypeptide in a host.

Abstract: A focusing lens is manually moved to extend a range of working distances in which a bar code symbol can be electro-optically read. The lens movement enables reading of close-in and far-out symbols. The lens movement can also be used to change operation between a reading mode and a pointing mode in which a visual display is created on a target.

Abstract: Three non-complex imaging arrangements are provided where in two of the imaging arrangements a moveable carrier housing at least one objective lens is provided and, in the other imaging arrangement, at least one stationary objective lens and additional optical elements are provided. Each embodiment includes at least one fixed image sensor array for imaging thereon an optical code or target, such as a one-dimensional barcode symbol, or label, marking, picture, etc. Each imaging arrangement provides an extended working range of approximately 5-102 cm. The imaging arrangements are capable of being incorporated within a barcode imager to provide a non-complex barcode imager having an extended working range which is comparable to or greater than the working ranges of conventional image-based barcode imagers.

Abstract: A non-complex imaging arrangement is aligned along an imaging axis. A mirror assembly is configured to reflect an image from an optical axis, which intersects the imaging axis, toward the optics assembly. The imaging arrangement includes at least one fixed image sensor for imaging thereon an optical code or target, such as a one-dimensional or two-dimensional barcode symbol, or label, signature, marking, picture, etc. The imaging arrangement provides an extended working range of approximately 5-102 cm. The imaging arrangement is capable of being incorporated within a barcode imager to provide a non-complex barcode imager having an extended working range which is comparable to or greater than the working ranges of conventional image-based barcode imagers.

Abstract: A semiconductor device for imaging optical code symbols comprises no more than 1024 pixels, wherein each of the pixels has an aspect ratio that is greater than 2 to 1 with a short dimension not greater than 4 ?m and not less than 2 ?m, wherein preferably the pixels are arranged in a single row. The semiconductor may have a collection surface configured as a set of no less than 256 and no more than 1024 pixels. Also provided is a bar code reader including a sensor for imaging a field of view of the reader comprising a single semiconductor device as described above.

Abstract: Imaging optical code readers and imaging systems are disclosed for measuring or deriving physical parameters of objects in a field of view such as object dimensions and weights. A projected pattern and weight responsive platform maybe used in such measurements.

Abstract: A miniature imager for reading target images. The optical and electrical systems of the miniature imager are optimized to reduce one or more dimensions or the volume of the imager. In accordance with one embodiment the pixel pitch and focal length are decreased for that of a larger imager to maintain a comparable field of view for each pixel. The decreased pixel pitch allows the area of the aperture and the instantaneous field of view of the pixel to remain constant while decreasing the overall size of the imager. In other embodiments apparatus and techniques reduce and/or eliminate the need for illumination of a target by the imager thereby reducing the overall power consumed by the imager and/or its overall size. The imager has an increased working range.

Abstract: An imaging optical code reader is adapted for use in producing video displays and for use in motion detection surveillance using video compression and narrow band width communication links. An optical system including a plane parallel plate may be employed to change the system focal distance. The imaging optical code reader is also adapted for measurement of physical parameters of a target object including motion, distance, weight and dimensions.