Abstract: A cable TV amplifier system, including: an amplifier module, including a body, a power connecting port, a signal input port, and a plurality of signal output ports; and a power converter, including an AC power input terminal, at least one DC power output terminal, and a switching power converting circuit for converting an AC voltage to a DC voltage to power the amplifier module; wherein, the switching power converting circuit includes a surge protection circuit, a bridge rectifying circuit, an energy transmission unit, a feedback unit, and a control unit, and the control unit will stop outputting a pulse width modulation signal when the AC voltage has an amplitude larger than a first level or smaller than a second level, the first level being higher than the second level.

Abstract: A cable TV coaxial video and network transmitter includes: a top cover having plural signal transmitting ports at peripheral positions thereof; plural connection guiding seats, wherein the bottom surfaces thereof are respectively protruded with a conductive pin; a bottom cover, combined with the top cover, and the interior thereof is installed with a printed circuit board; and plural insertion seats, fastened on the printed circuit board corresponding to the conductive pins, wherein one side of each of the insertion seats is formed with at least one connection leg, and the other side thereof is formed with an elastic clipping end having the interior formed with a pair of clamping segments, the contact length and the contact area between the pair of clamping segments and each of the conductive pins can be determined according to the dimension of the pair of clamping segments.

Abstract: A cable TV coaxial video and network transmitter includes: a top cover, a connection guiding seat, and a bottom cover; wherein two sides defined on the bottom surface of the connection guiding seat are protruded with a pair of conductive pins, the interior of the bottom cover is installed with a printed circuit board on which two insertion seats corresponding to the two conductive pins are installed, the insertion seat include a clipping member having two sides formed with a pair of connection legs with the upper portion formed with a pair of clamping segments, and a hollow zone is defined to be below bottom edges of the pair of clamping segments and between the pair of connection legs, so the contact length and the contact area between the pair of clamping segment and the conductive pins are able to be determined according to the hollow zone.

Abstract: A cable TV coaxial video and network transmitter includes: a top cover having plural signal transmitting ports at peripheral positions thereof; plural connection guiding seats, wherein the bottom surfaces thereof are respectively protruded with a conductive pin; a bottom cover, combined with the top cover, and the interior thereof is installed with a printed circuit board; and plural insertion seats, fastened on the printed circuit board corresponding to the conductive pins, wherein one side of each of the insertion seats is formed with at least one connection leg, and the other side thereof is formed with an elastic clipping end having the interior formed with a pair of clamping segments, the contact length and the contact area between the pair of clamping segments and each of the conductive pins can be determined according to the dimension of the pair of clamping segments.

Abstract: The present invention relates to a power inserter having frequency compensating function, which comprises: a housing formed with a chamber, a first opening, a second opening and a third opening; a first connector exposed outside the housing through the first opening; a second connector exposed outside the housing through the second opening; a third connector exposed outside the housing through the third opening; and characterized in that: a capacitor is further provided, a first terminal of the capacitor is formed with a winding having at least half turn and coupled to a signal terminal of the third connector, a second terminal of the capacitor is formed with a winding having at least half turn and coupled to a signal terminal of the second connector, thereby being enabled to provide the frequency compensating function.

Abstract: The present invention relates to a splitter having MoCA block function, which includes: a low-pass filtering unit, one end thereof is coupled to an input end of a splitter for inputting a RF signal and performing a low-pass filtering operation to the RF signal; a first-stage splitter, an input end thereof is coupled to an output end of the low-pass filtering unit for attenuating the RF signal to a first value so as to be outputted; and at least a second-stage splitter, an input end thereof is coupled to an output end of the first-stage splitter for attenuating the RF signal to a second value so as to be outputted to at least a user-end connector.

Abstract: The present invention relates to a VoIP phone splitting device having MoCA block function, which includes: a low-pass filtering unit used for inputting a RF signal; a first-stage splitter, a first output end thereof is coupled to an output for attenuating the RF signal to a first value so as to be outputted; a second-stage splitter, an input end thereof is coupled to a second output end of the first-stage splitter for attenuating the RF signal to a second value so as to be outputted; and at least a third-stage splitter, an input end thereof is coupled to an output end of the second-stage splitter for attenuating the RF signal to a third value so as to be outputted to at least a user-end connector.

Abstract: The present invention relates to a multi-tap having MoCA cutoff function, which includes: a low-pass filtering unit used for inputting a RF signal; a directional coupler used for outputting the RF signal; a first-stage splitter, an input end thereof is coupled to a second output end of the directional coupler for attenuating the RF signal to a first value so as to be outputted; and at least a second-stage splitter, an input end thereof is coupled to an output end of the first-stage splitter for attenuating the RF signal to a second value so as to be outputted to at least a user end.

Abstract: A distributor amplifier having a noise blocking circuit, including: a first connector; a first filter; a transformer; a voltage scaling unit; a first amplifier; a detector; a second amplifier; a comparator; a switch circuit; and a second connector. The distributor amplifier is capable of suppressing and preventing upstream RF noise from entering a cable TV system.

Abstract: A distribution amplifier with intellectual signaling comprises a first connector, a first amplifier, a second connector, a power regulator, an inductive coil, a voltage detecting circuit, a first indicating lamp, a second amplifier and a second indicating lamp. The distribution amplifier with intellectual signaling may effectively display whether the distribution amplifier operates normally or not according to the above-mentioned arrangement.

Abstract: An insulation displacement contact terminal block for providing electrical contact with a bundle of twisted pair wires having at least two differentially driven wire-pairs, a first wire-pair diverging from a second wire-pair at a diverging point of the bundle, and a first wire of each wire-pair untwisting from a second wire of that wire-pair at an untwisting point, the terminal block comprising a first contact-pair and a second contact-pair. The first contact-pair comprising first and second insulation displacement contacts for electrical connection with respective first and second wires of the first wire-pair. The second contact-pair comprising first and second insulation displacement contacts for electrical connection with respective first and second wires of the second wire-pair. The first and second insulation displacement contacts of each contact-pair are substantially equidistant from the untwisting point and are proximate to the untwisting point.

Abstract: The present invention relates to a lightning protective high-voltage divider, which comprises: a printed circuit board; an impedance coil; a coupling capacitor having one end being coupled to the signal input terminal; a transformer having a primary coil and a secondary coil, wherein one end of the primary coil is coupled to the other end of the coupling capacitor, the other end of the primary coil is grounded, the secondary coil is coupled to at least a signal output terminal, so the input signal inputted by the signal input terminal is enabled to be coupled to the signal output terminal through the primary coil and the secondary coil; when a lightning surge current occurs, the impedance coil is able to guide the surge current to the ground, thereby protecting the coupling capacitor from being damaged.

Abstract: The present invention provides a ferrite core winding structure with high frequency response, which comprises: a ferrite core formed with at least a penetrated hole, a first enamel wire formed with a first end and a second end, and a second enamel wire formed with a first end and a second end; wherein, the first end of the first enamel wire and the first end of the second enamel wire are mutually twisted for at least one turn and then jointly passed the penetrated hole, the second end of the first enamel wire and the second end of the second enamel wire are jointly encircled the ferrite core then passed the penetrated hole, the second end of the first enamel wire is respectively encircled the ferrite core for at least one turn at two sides of the winding formed by the first end of the first enamel wire, then the second end of the first enamel wire and the first end of the second enamel wire are twisted for plural turns at the outer side of the ferrite core thereby forming a common end.

Abstract: A distributor amplifier having a noise blocking circuit, including: a first connector; a first filter; a transformer; a voltage scaling unit; a first amplifier; a detector; a second amplifier; a comparator; a switch circuit; and a second connector.

Abstract: The present invention relates to a power inserter having frequency compensating function, which comprises: a housing formed with a chamber, a first opening, a second opening and a third opening; a first connector exposed outside the housing through the first opening; a second connector exposed outside the housing through the second opening; a third connector exposed outside the housing through the third opening; and characterized in that: a capacitor is further provided, a first terminal of the capacitor is formed with a winding having at least half turn and coupled to a signal terminal of the third connector, a second terminal of the capacitor is formed with a winding having at least half turn and coupled to a signal terminal of the second connector, thereby being enabled to provide the frequency compensating function.

Abstract: The present invention relates to an improved contact surface of pin hole (e.g, a ground pin hole, screw fastening hole, or the like), which is adopted on a substrate, the substrate is formed with at least a pin hole (e.g, a ground pin hole, screw fastening hole, or the like) hole and characterized in that: the periphery of the pin hole (e.g, a ground pin hole, screw fastening hole, or the like) is formed with plural soldering joints and plural penetrated holes, thereby allowing a pin (e.g., pin, ground pin, screw, or the like) and the substrate to be formed with an excellent contact surface for achieving a grounding effect.

Abstract: A distribution amplifier with intellectual signaling comprises a first connector, a first amplifier, a second connector, a power regulator, an inductive coil, a voltage detecting circuit, a first indicating lamp, a second amplifier and a second indicating lamp. The distribution amplifier with intellectual signaling may effectively display whether the distribution amplifier operates normally or not according to the above-mentioned arrangement.

Abstract: The present invention relates to a lightning protective high-voltage divider, which comprises: a printed circuit board; an impedance coil; a coupling capacitor having one end being coupled to the signal input terminal; a transformer having a primary coil and a secondary coil, wherein one end of the primary coil is coupled to the other end of the coupling capacitor, the other end of the primary coil is grounded, the secondary coil is coupled to at least a signal output terminal, so the input signal inputted by the signal input terminal is enabled to be coupled to the signal output terminal through the primary coil and the secondary coil; when a lightning surge current occurs, the impedance coil is able to guide the surge current to the ground, thereby protecting the coupling capacitor from being damaged.

Abstract: The present invention relates to an integrated power inserter, comprises: a housing; a voltage lowering and rectifying member; and a coupling member having a power input end, a radio frequency signal coupling circuit, a radio frequency signal input end and a radio frequency signal output end, wherein the radio frequency signal input end is input with a radio frequency signal and outputs a power signal, the radio frequency signal output end outputs a radio frequency signal being coupled to a television; with the mentioned structure of the integrated power inserter, a power inserter can be integrated in a power adaptor for simplifying wire layout and lowering production cost.

Abstract: The present invention relates to an integrated power inserter, comprises: a housing; a voltage lowering and rectifying member; and a coupling member having a power input end, a radio frequency signal coupling circuit, a radio frequency signal input end and a radio frequency signal output end, wherein the radio frequency signal input end is input with a radio frequency signal and outputs a power signal, the radio frequency signal output end outputs a radio frequency signal being coupled to a television; with the mentioned structure of the integrated power inserter, a power inserter can be integrated in a power adaptor for simplifying wire layout and lowering production cost.