Abstract: A half duplex amplifier for a cable network.

Abstract: A design for a Tunable Cable Simulator with a minimum number of components and low insertion loss.

Abstract: A class of pyrimidoheterocyclic compounds, and specifically disclosed is a compound represented by formula (III) or a pharmaceutically acceptable salt thereof.

Abstract: The present disclosure provides compounds that are cGAS antagonists, methods of preparation of the compounds, pharmaceutical compositions comprising the compounds, and their use in medical therapy.

Abstract: A design for a Tunable Cable Simulator with a minimum number of components and low insertion loss.

Abstract: A half duplex amplifier for a cable network.

Abstract: Devices, systems, and methods for amplifying full duplex signals that include a first frequency band shared between an FDX upstream signal and a downstream FDX signal, and a second frequency band having a legacy upstream signal, where the legacy upstream signal and the FDX upstream signal are amplified by a common amplifier.

Abstract: In one embodiment, an apparatus includes a bi-directional coupler for coupling an upstream signal and a downstream signal to a termination load. A test point detection mechanism is configured to detect when a test point device is inserted in a test point connector. The test point device is configured to perform a test of the upstream signal or the downstream signal. A switch is configured to switch from being coupled to the termination load to being coupled to the test point device when the test point device is detected as being inserted in the test point connector. The switch is configured to switch from being coupled to being coupled to the test point device to the termination load when the test point device is detected as being removed from being inserted in the test point connector.

Abstract: A radio-frequency amplifier for a cable network includes a forward amplifier configured to amplify a high frequency range of signals that are provided downstream to a cable receiver of the cable network and a return amplifier configured to amplify a low frequency range of signals that are provided upstream to a head end of the cable network. An out-of-band forward amplifier configured to amplify a digitally protected video signal having a frequency in a range between 70 MHz and 130 MHz that are provided downstream to the cable receiver of the cable network and a notch filter configured to reject the amplified digitally protected video signal having the frequency in the range between 70 MHz and 130 MHz from being amplified by the return amplifier.

Abstract: An apparatus for implementing soft duplex operation of a communications network that transmits downstream signals from a service provider to a subscriber and upstream signals from the subscriber to the service provider. The apparatus may include a pair of opposed triplexers defining a first signal path through a first amplifier and a second signal path through a second amplifier. The apparatus may also include at least one switch that selectively alternates a mid0band signal between an upstream signal and a downstream signal.

Abstract: A transmitting and/or receiving system for cable networks.

Abstract: A half duplex amplifier for a cable network.

Abstract: An amplification system for amplifying a service of a cable television network that includes a first amplifier receiving the service and providing a first output signal having a first frequency band with a first maximum downstream frequency to a first customer and a second amplifier. The amplification system includes the second amplifier receiving the first output signal and providing a second output signal having a second frequency band with a second maximum downstream frequency to a second customer, wherein the second maximum downstream frequency is less than the first maximum downstream frequency.

Abstract: Methods and apparatuses are provided to modify existing overlay system architectures in a cost effective manner to meet the growing demand for narrowcast services and to position the existing overlay systems for additional future modifications. The implementations of the improved overlay system of this disclosure re-digitize narrowcast analog signals after they have been QAM modulated and upconverted to RF frequencies and replace the analog narrowcast transmitters with digital narrowcast transmitters. In the fiber nodes, the received narrowcast signals are converted back to analog signals and combined with analog broadcast signals for transmission to the service groups.

Abstract: A radio-frequency amplifier for a cable network includes a forward amplifier configured to amplify a high frequency range of signals that are provided downstream to a cable receiver of the cable network and a return amplifier configured to amplify a low frequency range of signals that are provided upstream to a head end of the cable network. An out-of-band forward amplifier configured to amplify a digitally protected video signal having a frequency in a range between 70 MHz and 130 MHz that are provided downstream to the cable receiver of the cable network and a notch filter configured to reject the amplified digitally protected video signal having the frequency in the range between 70 MHz and 130 MHz from being amplified by the return amplifier.

Abstract: Systems and methods for reducing the variation in the power of optical signals transmitted in an upstream direction, at the inputs of an active combiner in an RFoG CATV architecture preferably configured to reduce optical beat interference, so as to increase the dynamic range of a laser in the active combiner.

Abstract: In some embodiments, a digital clock management system includes input signal conversion circuitry, logic circuitry and output signal conversion circuitry. The input signal conversion circuitry converts input signals to corresponding first digital data streams, each of which contains digital data synchronized to a first data clock. First digital logic circuitry converts the first digital data streams to second digital data streams, each of which contains digital data synchronized to the first data clock, and converts the second digital data streams to third digital data streams, each of which contains digital data synchronized to a common clock. Second digital logic circuitry converts the third digital data streams to a single digital data stream. The output signal conversion circuitry converts the single digital data stream to a modulated output signal.

Abstract: A transmitting and/or receiving system for cable networks.

Abstract: In one embodiment, an apparatus includes a bi-directional coupler for coupling an upstream signal and a downstream signal to a termination load. A test point detection mechanism is configured to detect when a test point device is inserted in a test point connector. The test point device is configured to perform a test of the upstream signal or the downstream signal. A switch is configured to switch from being coupled to the termination load to being coupled to the test point device when the test point device is detected as being inserted in the test point connector. The switch is configured to switch from being coupled to being coupled to the test point device to the termination load when the test point device is detected as being removed from being inserted in the test point connector.

Abstract: A coring tool for a coaxial cable has a tool holder and cutter bit mounted to the tool holder. The cutter bit is constructed from a conductive metal or alloy which is durable for rotatably drilling out and removing a dielectric core surrounding a central conductor of the coaxial cable, as the central conductor is preserved by passing into a central bore formed in the cutter bit. The cutter bit also includes a non-conductive sleeve or coating which prevents the cutter bit from electrically interconnecting, e.g., shorting, the central conductor to an outer conductor of the coaxial cable.