Abstract: Methods and systems of illuminating a scan volume of an optical code reader are disclosed. In an example configuration, an illumination source associated with the optical code reader is set to a first illumination mode based on a user-configurable parameter that at least partially defines a first depth of field of the optical code reader when the illumination source illuminates the scan volume; while the illumination source is in the first illumination mode, the scan volume is monitored for an indication of whether an object is detected in the scan volume; and if an object is detected in the scan volume while the illumination source is in the first illumination mode, the illumination source is set to a second illumination mode.

Abstract: A fiber optic cable includes an optical fiber, a strength layer surrounding the optical fiber, and an outer jacket surrounding the strength layer. The strength layer includes a matrix material in which is integrated a plurality of reinforcing fibers. A fiber optic cable includes an optical fiber, a strength layer, a first electrical conductor affixed to an outer surface of the strength layer, a second electrical conductor affixed to the outer surface of the strength layer, and an outer jacket. The strength layer includes a polymeric material in which is embedded a plurality of reinforcing fibers. A method of manufacturing a fiber optic cable includes mixing a base material in an extruder. A strength layer is formed about an optical fiber. The strength layer includes a polymeric film with embedded reinforcing fibers disposed in the film. The base material is extruded through an extrusion die to form an outer jacket.

Abstract: Systems and methods for preventing fraud during retail checkout are described. A system includes: item identifier acquisition devices to acquire identifiers (e.g., barcodes) of items to be transacted; cameras or imagers to acquire images of the items to be transacted; an object recognition component to perform visual recognition of the acquired items through comparison of the acquired images of the items with a database and obtain identifiers of items represented in the database that correspond to an acquired image according to a correspondence criterion; a comparison component to compare a set of identifiers acquired through the item identifier acquisition devices with a set of identifiers obtained through the object recognition component; and an alerting component to provide an alert in case of discrepancies between the two sets.

Abstract: Methods and systems for providing crosstalk compensation in a jack are disclosed. According to one method, the crosstalk compensation is adapted to compensate for undesired crosstalk generated at a capacitive coupling located at a plug inserted within the jack. The method includes positioning a first capacitive coupling a first time delay away from the capacitive coupling of the plug, the first capacitive coupling having a greater magnitude and an opposite polarity as compared to the capacitive coupling of the plug. The method also includes positioning a second capacitive coupling at a second time delay from the first capacitive coupling, the second time delay corresponding to an average time delay that optimizes near end crosstalk. The second capacitive coupling has generally the same overall magnitude but an opposite polarity as compared to the first capacitive coupling, and includes two capacitive elements spaced at different time delays from the first capacitive coupling.

Abstract: An adapter panel arrangement including a chassis and a panel of adapters. The adapters defining rearward cable connections and forward cable connections of the panel arrangement. Openings permitting access to the rearward and forward cable connections of the adapters are provided. The chassis further including a removable rear chassis portion to provide access to cable routing areas within the chassis interior.

Abstract: An optical fiber assembly includes a core. The core includes a central portion and a plurality of fins that extends radially outward from the central portion. The central portion defines a central passage. The central portion and the plurality of fins cooperatively define a plurality of grooves that is helically oriented along a length of the core. A plurality of optical fibers is disposed in the plurality of grooves. A strength member is disposed in the central passage of the core. An outer covering surrounds the core. The outer covering is air permeable.

Abstract: A method of switching a communication device between an uplink communication path and a downlink communication path is provided. The method measures a power level of signals on at least one radio frequency for one of the uplink communication path and the downlink communication path. The measured power level is compared with a threshold power level. Switching between an uplink circuit and a downlink circuit is based on the comparison between the measured power level and the threshold power level.

Abstract: Systems and methods for distributed antenna system reverse path summation using signal-to-noise ratio optimization are provided. In one embodiment, a method for reverse path summation for a distributed antenna system comprises: normalizing an uplink noise floor for a plurality of remote antenna units of a distributed antenna system, wherein the uplink noise floor is normalized based on a first remote antenna unit having a lowest noise floor of the plurality of remote antenna units; and scaling an uplink output gain of each of the plurality of remote antenna units by a scaling factor, wherein the scaling factor attenuates the uplink output gain based on a composite maximum host peak power for a host unit coupled to the plurality of remote antenna units.

Abstract: The present invention relates to an improved isolated core or insulated conductor with a low dielectric constant and reduced materials costs. Apparatuses and methods of manufacturing the improved isolated core or insulated conductor are also disclosed.

Abstract: This disclosure relates generally to systems and methods for estimating and, at least partially, compensating for fixed pattern noise (FPN) in an image sensor. In one configuration, an estimate of the FPN of an image sensor may be obtained by capturing a dark image (either a linear or an area image, depending on the sensor type) using a first exposure time, an illuminated image may be captured using a second exposure time, the second exposure time is greater than the first exposure time, and the dark image may be subtracted from the illuminated image to compensate, at least partially, for FPN. Certain configurations may utilize virtual scan lines. Two or more dark images may also be utilized to estimate FPN in an image sensor.

Abstract: An adapter panel arrangement including a chassis and a panel of adapters. The adapters defining open rearward cable connections and open forward cable connections of the panel arrangement. The adapters being arranged in arrays that slide independently of other adapter arrays to provide access to the open rearward and open forward cable connections.

Abstract: A cable anchoring assembly includes a jacket anchoring block having a jacket clamping location and a reinforcing structure anchoring block mounted to the jacket anchoring block. The reinforcing structure anchoring block includes a reinforcing structure anchoring location that defines a fastener opening and an access slot that extends outwardly from the fastener opening. The access slot has a first open end positioned at the fastener opening and a second open end offset from the fastener opening. The access slot provides an open lateral passage into the fastener opening. A fastener is adapted for engagement in the fastener opening.

Abstract: A fiber optic cable assembly includes a fiber optic cable and a cable pulling assembly. The fiber optic cable includes a first end and an oppositely disposed second end. The fiber optic cable further includes an outer jacket and a strength member disposed in the outer jacket. The cable pulling assembly is engaged to the second end of the fiber optic cable. The cable pulling assembly includes an enclosure defining a cavity. The second end of the fiber optic cable is disposed in the cavity. An adhesive is disposed in the cavity. The adhesive secures the strength member of the fiber optic cable to the enclosure.

Abstract: The present invention relates to cables made of twisted conductor pairs. More specifically, the present invention relates to twisted pair communication cables for high-speed data communications applications. A twisted pair including at least two conductors extends along a generally longitudinal axis, with an insulation surrounding each of the conductors. The conductors are twisted generally longitudinally along the axis. A cable includes at least two twisted pairs and a filler. At least two of the cables are positioned along generally parallel axes for at least a predefined distance. The cables are configured to efficiently and accurately propagate high-speed data signals by, among other functions, limiting at least a subset of the following: impedance deviations, signal attenuation, and alien crosstalk along the predefined distance.

Abstract: A digital subscriber line (DSL) unit comprises a first user port configured to communicate signals according to an Ethernet protocol and a second user port configured to communicate signals according to a second non-Ethernet protocol The DSL unit also comprises at least one DSL port configured to communicate signals according to a DSL protocol; and a processing device configured to analyze Ethernet signals received over the first user port to determine when to output data from the respective received Ethernet signals over the second user port and when to output data from the respective received Ethernet signals over the at least one DSL port. The processing device is further configured to extract data from signals received over the second user port and insert the extracted data into a corresponding Ethernet signal having a respective emulated circuit identification and to output the corresponding Ethernet signal over the first user port.

Abstract: Data reading systems and methods for operating data readers such as optical code readers and RFID readers. Certain preferred embodiments are directed to data readers having improved operation features for switching between various operation modes such as, for example, switching between handheld/portable mode and fixed mode using an on board inertial sensor such as an accelerometer or gyroscopic device capable of sensing various movements, motions, and/or orientations.

Abstract: A fiber optic connector assembly includes a connector and a carrier. The connector has a first and second ends and a terminated fiber. The fiber defines a first end adjacent the first end of the connector and a second end protruding out of the second end of the connector. A carrier having a connector end and an opposite cable end is engaged with the connector. An alignment structure on the carrier includes a first end, a second end and a throughhole and also a cutaway extending perpendicularly to and communicating with the throughhole. The fiber is positioned within at least a portion of the throughhole with the second end located within the cutaway. A window is within the cutaway over the second end of the fiber for visually inspecting the alignment of the second end of the fiber with an end of another fiber.

Abstract: Fold mirrors permit the imagers to be closer to each other and permit an optical code reader, such as a tunnel scanner, to confine them to a smaller housing volume or capacity. A plurality of sets of fold mirrors can also be employed to convey at least a portion of at least two different perspectives or two different depths of field of a composite view volume to different regions of an image field of a common imager. The sets of fold mirrors may also include split mirrors that have mirror components that reflect images from different view volumes to different imagers or different regions of an image field of a single imager.

Abstract: A monolithic compound mirror structure is used in an optical code reader employing an imager that captures images of items bearing optical codes in a viewing volume of the optical code reader. The monolithic compound mirror structure comprises a plurality of highly reflective surfaces positioned on the structure so that the structure can be positioned in a field of view of the imager in the optical code reader and oriented so that two or more of the plurality of highly reflective surfaces appear in the field of view of the imager, to thereby split the field of view of the imager into two or more different views into the viewing volume. The different views into the viewing volume may be direct off of the monolithic compound mirror structure or indirect off of one or more intermediate mirrors.

Abstract: A device used to secure a section of cable while one or more fiber is broken out from the cable. The device includes spaced apart clamp assemblies that hold a cable during the splicing process to protect the fairly delicate fibers within the sheathing. The disclosure also relates to a method of splicing using a clamp assembly.