Abstract: Among other things, a rowing exercise machine includes a movable inertial element, an eddy current brake coupled to the movable inertial element, a rowing grip coupled to the movable inertial element, and control circuitry coupled to the eddy current brake to cause a resistance to motion of the rowing grip during part of a rowing stroke. The resistance to motion of the rowing grip during the drive phase of the rowing stroke conforms to a target feel for a rower. The target feel corresponds to a feel for a rower of a target other rowing exercise machine or other target feel of interest.

Abstract: Provided herein are surfacing fabrics, such as, for example, those used as veils for a fiber reinforced polymer material, and to composites comprising a surfacing fabric of the present invention. Also provided are compositions and methods for preparing surfacing fabrics and composites of the present invention.

Abstract: Header assemblies generally used to handle yarns, for example, to facilitate connection of yarns feeding into a tufting machine or other device. In some embodiments, the improved header assembly includes at least a detachable header and a collector plate. The improved header assembly simplifies the process of loading yarn through a detachable header by positioning the detachable header so that it abuts the collectable plate so that individual yarns can be blown through the collector plate through the appropriate holes in the detachable header. In some embodiments, the header assemblies are configured for use with varying gauges, different alignment requirements, different devices, and/or to otherwise be more universal in nature.

Abstract: Creels having frames configured to receive one or more trays of yarn packages. The trays of yarn packages are removable from the frame and can be loaded with packages of yarn when not inserted into the frame. Separately loading trays with yarns can simplify and provide other benefits with respect to the process of loading a creel with yarn packages. Also disclosed is an assembly that is positioned with respect to a detachable header and a stationary header on a creel and that comprises an air flow unit that causes yarns to move through to an alignment mechanism that aligns the yarns for attachment to yarns already feeding into a tufting machine.

Abstract: Header assemblies generally used to handle yarns, for example, to facilitate connection of yarns feeding into a tufting machine or other device. In some embodiments, the improved header assembly includes at least a detachable header and a collector plate. The improved header assembly simplifies the process of loading yarn through a detachable header by positioning the detachable header so that it abuts the collectable plate so that individual yarns can be blown through the collector plate through the appropriate holes in the detachable header. In some embodiments, the header assemblies are configured for use with varying gauges, different alignment requirements, different devices, and/or to otherwise be more universal in nature.

Abstract: A transcoder architecture and method for transcoding in land mobile radio (LMR) systems are provided. The LMR system includes a first communication site configured to communicate using a first LMR communication protocol and a second communication site configured to communicate using a second LMR communication protocol. The LMR system further includes a transcoder configured to receive LMR content from the first communication site communicated using the first LMR communication protocol and digitally convert the LMR content to the second LMR communication protocol to be communicated to the second communication site.

Abstract: Yarn package sorting conveyer systems and methods using multiple conveyers based on weights, colors or other characteristics of the packages or yarns. The system may include a first conveyer that serves as a timing belt, a second conveyer that serves as a weighing belt, and a third conveyer that serves as a sorting/exit belt, but fewer or more conveyers and alternative conveyer mechanisms may be used. The conveyers may be controlled by programmable logic controllers (PLCs) with touch screen interfaces or other suitable control mechanisms and systems.

Abstract: Creels having frames configured to receive one or more trays of yarn packages. The trays of yarn packages are removable from the frame and can be loaded with packages of yarn when not inserted into the frame. Separately loading trays with yarns can simplify and provide other benefits with respect to the process of loading a creel with yarn packages. Also disclosed is an assembly that is positioned with respect to a detachable header and a stationary header on a creel and that comprises an air flow unit that causes yarns to move through to an alignment mechanism that aligns the yarns for attachment to yarns already feeding into a tufting machine.

Abstract: A method and system is provided for improving bit error rate (BER) performance in delay spread fading conditions, such as the fading associated with simulcast systems. BER is improved through novel symbol synchronization that comprises oversampling an input signal and filtering the samples to determine a composite symbol sample point that converges toward the center of the signal's effective eye pattern. The composite symbol sample point may be an average of previous composite symbol sample points and an instantaneous sample point determined based on samples from a synchronization field of the signal. The updated composite symbol sample point may be utilized for future sampling of the incoming signal.

Abstract: A security system for a digital trunked radio system having a digital control channel and a plurality of working channels, wherein said working channels are assigned for temporary use of individual radio units by digital control signals transmitted over said control channel, said control channel carrying digital control signals between a base site and said radio units, comprising a digital key, said key used to limit access to the system equipment and system control channel transmissions.

Abstract: The present invention provides a colored reinforced article of manufacture having a substantially uniform distribution of color. The colored reinforced article of manufacture comprises a fiber-reinforced thermosetting resin matrix and a non-appertured colored veil in the thermosetting resin matrix.

Abstract: A system and method for automatic roaming in land mobile radio (LMR) systems are provided. The method includes determining a signal quality value for each of a plurality of communication channels in the LMR system and determining if a signal quality level of a current communication channel is below a predetermined threshold. The method further includes automatically switching communication from the current communication channel to one of the plurality of communication channels if the signal quality level is determined to be below the predetermined threshold.

Abstract: A method for reliable communication within a digital trunked radio system having a digital control channel and a plurality of working channels, wherein said working channels are assigned for temporary use by a subset of radio units by digital control signals transmitted over said control channel, said control channel carrying outbound digital control signals from a base site to said radio units, said outbound digital control signals having a fixed transmission time slot, said method comprising the steps of: (a) transmitting a first message and a second message, each 28 bits in length, within said time slot; (b) defining at least one first message type identifier field within said first message; (c) defining a group identifier in said first message, said group identifier comprising from greater than 11 up to 16 bits; (d) defining at least one second message type identifier field within said second message; (e) defining a logical identifier in said second message, said logical identifier comprising from greater

Abstract: A method and system is provided for improving bit error rate (BER) performance in delay spread fading conditions, such as the fading associated with simulcast systems. BER is improved through novel symbol synchronization that comprises oversampling an input signal and filtering the samples to determine a composite symbol sample point that converges toward the center of the signal's effective eye pattern. The composite symbol sample point may be an average of previous composite symbol sample points and an instantaneous sample point determined based on samples from a synchronization field of the signal. The updated composite symbol sample point may be utilized for future sampling of the incoming signal.

Abstract: A transcoder architecture and method for transcoding in land mobile radio (LMR) systems are provided. The LMR system includes a first communication site configured to communicate using a first LMR communication protocol and a second communication site configured to communicate using a second LMR communication protocol. The LMR system further includes a transcoder configured to receive LMR content from the first communication site communicated using the first LMR communication protocol and digitally convert the LMR content to the second LMR communication protocol to be communicated to the second communication site.

Abstract: The present invention provides a colored reinforced article of manufacture having a substantially uniform distribution of color. The colored reinforced article of manufacture comprises a fiber-reinforced thermosetting resin matrix and a non-appertured colored veil in the thermosetting resin matrix.

Abstract: A self-calibrating radio is described. In one exemplary implementation, a radio signal from its local voltage controlled oscillator. The calibration system automatically calibrates the radio by: (i) receiving a reference signal having a calibrated reference frequency, (ii) comparing the local frequency to the reference frequency to determine whether there is a difference between the local frequency and the reference frequency and (iii) adjusting the local frequency by an offset frequency, if the difference between the local frequency and the reference frequency is greater than a threshold value.

Abstract: A security system for a digital trunked radio system having a digital control channel and a plurality of working channels, wherein said working channels are assigned for temporary use of individual radio units by digital control signals transmitted over said control channel, said control channel carrying digital control signals between a base site and said radio units, comprising a digital key, said key used to limit access to the system equipment and system control channel transmissions.

Abstract: A method for generating subtitles for audiovisual material received and analyses a text file containing dialogue spoken in audiovisual material and provides a signal representative of the text. The text information and audio signal are aligned in time using time alignment speech recognition and the text and timing information are then output to a subtitle file. Colors can be assigned to different speakers or groups of speakers. Subtitles are derived by receiving and analyzing a text file containing dialogue spoken by considering each word in turn and the next information signal, assigning a score to each subtitle in a plurality of different possible subtitle formatting options which lead to that word. The steps are then repeated until all the words in the text information signal have been used and the subtitle formatting option which gives the best overall score is then derived.

Abstract: A self-locking grate for a drain fitting body includes a plate having strainer holes and arcuate elongated openings near the periphery of the grate. Enlarged diameter portions of the elongated openings fit over studs connected to a drain, and the grate can be rotated to engage the studs, so that the grate is wedged to the drain fitting body without the use of screws. An inclined ledge, formed in the elongated openings, acts as a cam surface to wedge against the grate as it is rotated into the locked position. Despite the absence of screws, the grate is unlikely to loosen due to vibration or shock. A tool capable of simultaneously engaging distinct holes in the grate can be used to rotate the grate between the locked and unlocked positions. The invention also includes a kit for converting a conventional drain fitting and grate into a drain fitting and grate of the present invention.