Abstract: A connector assembly has a plug and socket; the plug includes an insulative body, at least one first power contact, at least one second power contact and a metal shield. The insulative body has a base portion and a tongue portion extending from the base portion. The tongue portion includes a plurality of power contact grooves and penetrates through the base portion, and at least one first convex portion defined in a periphery of the tongue portion. The first power contact and the second power contact are respectively formed on the power contact grooves of the insulative body for connection to a power source in a socket of host device. The metal shield encloses the tongue portion of the insulative body to cover the tongue portion. Consequently, the charging speed can be increased, reducing charging time.

Abstract: A receptacle connector has an insulator, multiple contacts, a shell, an insulating bracket, and a detection contact. The shell covers the insulator and the contacts and has a cavity to receive the insulator and the contacts. A detection arm is formed on one of two sidewalls of the shell, which is resilient and able to be deformed by external force and recovered after removal of the external force. The insulating bracket is mounted outside of one of the sidewalls of the shell and has mounting slot defined in the insulating bracket. The detection contact is mounted in the mounting slot of the insulating bracket and is capable of contacting the detection arm. When a plug connector is inserted into the receptacle connector, the detection arm is bent to contact the detection contact for detecting the existence of the plug connector and activating signal transmission or power supply.

Abstract: A multiband antenna comprises a feeder member, a radiation conductor, a short-circuit member, a grounding plane and a feeder cable. The feeder member has a first coupling side. Two end of the short-circuit member are respectively connected with the radiation conductor and the grounding plane. The short-circuit member has a second coupling side parallel to and conformable to the first coupling side with a gap existing therebetween. The feeder cable has a central wire and an outer wire respectively connected with the feeder member and the grounding plane. The feeder member transmits a high-frequency fed-in signal to the short-circuit member in a capacitive coupling way. The multiband antenna of the present invention has a simplified antenna structure, a miniaturized size and wide frequency bands.

Abstract: A crosstalk-proof receptacle connector includes: multiple insulative boards arranged abreast; multiple sets of terminals mounted respectively in and corresponding to the insulative boards, and each set including signal terminals and grounding terminals; multiple shielding plates corresponding to the insulative boards and corresponding to the sets of the terminals, each shielding plate mounted on one of two opposite sides of a corresponding insulative board and having multiple current-path-interrupting holes defined through the shielding plate and kept hollow without being inserted by objects, and each shielding plate connected to the grounding terminals of a corresponding set of the terminals; and an outer casing covering the insulative boards to combine the insulative boards. The crosstalk-proof receptacle connector suppresses crosstalk and improves efficiency and stability of signal transmission.

Abstract: A quick lock connector assembly has a female connector and a male connector. The female connector has a first insulative housing, multiple first terminals, an outer casing and a locking lever. The locking lever is mounted pivotally on the outer casing and has two locking pins. The male connector is engaged detachably with the female connector and has a second insulative housing and multiple second terminals. The second insulative housing has two locking recesses selectively engaged respectively with the locking pins. The locking lever is able to quickly lock the male connector on the female connector.

Abstract: A connector has a fixture with multiple slits defined therein, multiple terminals, a metal housing and a metal casing. One ends of the terminals are received in corresponding slits and the other ends of the terminals are exposed from the fixture. The metal housing encloses the exposed other ends of the terminals and connected to the metallic baffle. The metal casing encloses the fixture and a part of the metal housing.

Abstract: A receptacle connector has an insulator, multiple contacts, a shell, an insulating bracket, and a detection contact. The shell covers the insulator and the contacts and has a cavity to receive the insulator and the contacts. A detection arm is formed on one of two sidewalls of the shell, which is resilient and able to be deformed by external force and recovered after removal of the external force. The insulating bracket is mounted outside of one of the sidewalls of the shell and has mounting slot defined in the insulating bracket. The detection contact is mounted in the mounting slot of the insulating bracket and is capable of contacting the detection arm. When a plug connector is inserted into the receptacle connector, the detection arm is bent to contact the detection contact for detecting the existence of the plug connector and activating signal transmission or power supply.

Abstract: A crosstalk-proof receptacle connector has multiple insulative boards, multiple sets of terminals, multiple sets of shielding plates and an outer casing. The insulative boards are arranged abreast. The sets of the terminals are mounted respectively in the insulative boards. The terminals of each set are classified into signal terminals and grounding terminals. Each set of the shielding plates is mounted on one of two opposite sides of a corresponding insulative board. The shielding plates of each set are spaced apart without contacting one another. Each shielding plate has multiple folding sections capable of interrupting signal noise. The outer casing covers the insulative boards to combine the insulative boards. The sets of the shielding plates decrease signal interference of the receptacle connector and improve signal transmission efficiency and stability.

Abstract: An electrical connector plug includes a casing an output/input port mounted having multiple upper terminals and multiple lower terminals, a trough defined between the upper terminals and the lower terminals, a circuit board inserted in the trough of the casing and having, a metal plate electrically connected to the ground terminal and a metal housing to entirely enclose the casing and to electrically connect to the metal plate such that the metal plate is able to transmit electromagnetic interference out via the metal housing.

Abstract: A multi-frequency antenna comprises a first conductor, a second conductor, a grounding member, and a third conductor. The first and second conductors are respectively arranged on a first plane and a second plane. The grounding member is arranged on a third plane existing between the first and second planes. The third conductor is connected with the first conductor and arranged on the first plane also. The first and third conductors are respectively coupled to the radiated signals of the second conductor to form a first electrical path and a second electrical path. The first electrical path and the second electrical path have a phase difference of 180 degrees. The present invention features the additional third conductor. The third conductor and the first conductor are coupled to the radiated signals of the second conductor to generate opposite-phase signals. Thus are counterbalanced the interferences among the antenna systems of an identical frequency band.

Abstract: An electrical connector socket includes a casing, a main body received in the casing, a first power contact terminal one distal end of which is mounted inside the power transmission body, a first power detect terminal, a second power detect terminal, a second power contact terminal, a ground terminal, upper terminals, lower terminals, an upper enclosure provided to enclose the bents of the upper terminals and a lower enclosure provided to enclose the bents of the lower terminals and to combine with the upper enclosure.

Abstract: A connector includes terminal elements each having a base, multiple terminals securely received in the base with first ends and second ends, positioning blocks formed on one side face of the base and cutouts defined in a top portion of the base, a casing having receiving spaces defined in the casing for receiving the second ends of the terminals, positioning holes each defined to communicate with a corresponding one of the receiving spaces to position therein the second end of the terminals and ribs formed inside the casing to isolate each of the terminals from influence from the other terminals and an insert having receiving holes defined to receive therein the terminal elements and transverse columns corresponding to the cutouts of the terminal elements such that with the transverse columns received in the corresponding cutouts, connection between the insert and the terminal elements is secured.

Abstract: A monofrequency antenna integrated with a coaxial feed cable comprises a first conductor, a second conductor and a feed cable. The feed cable includes a coating layer, an outer conductor, an insulating layer and a central conductor. The coating layer is formed on the outmost surface of the feed cable. The outer conductor is formed on the inner surface of the coating layer, extends in two opposite directions, and connects with the second conductor. The insulating layer is formed on the inner surface of the outer conductor and extends in two opposite directions. The first conductor is formed on the inner surface of the insulating layer and extends along one direction. The central conductor is formed on the inner surface of the insulating layer and extends along a direction opposite to the direction along which the first conductor extends. The present invention simplifies antenna structure and promotes transmission efficiency.

Abstract: An antenna with an improved holed system ground plane comprises a substrate, a radiation conductor member, a grounding member and a system ground plane. The radiation conductor member is arranged on the surface of the substrate. The grounding member is arranged on one edge of the substrate. The radiation conductor member is connected with the grounding member. The system ground plane is connected with one side of the grounding member. The system ground plane has at least one arbitrary-shaped hole. A radiation-enhancing filler is disposed in the arbitrary-shaped hole. The present invention solves the conventional problems that the system ground plane is drilled or cut to accommodate components and IC chips, keep away from wiring routes and avoid protrusions on the appearance, via disposing radiation-enhancing fillers in the arbitrary-shaped holes. Thereby is kept integrality of the system ground plane and promoted omnidirectionality of signal transmission.

Abstract: A connector includes an insulated body with a slot to receive therein a terminal module and a casing entirely enclosing the insulated body. An arm has at least two extensions respectively adapted to two oppositely formed sidewalls of the insulated body and each is provided with a boss formed on a distal end of the at least two extensions. At least two through holes are adapted to be defined in each of the two sidewalls of the insulated body to receive therein the bosses.

Abstract: A board-to-board connector assembly has a female connector and a male connector. The female connector has a first insulative housing, multiple first terminals and a latching bar. The first insulative housing has a locking recess and a releasing recess. The latching bar is mounted pivotally on the first insulative housing and selectively engages the locking recess or releasing recess. The male connector has a second insulative housing, multiple second terminals and two latched elements. The latched elements are mounted in the second insulative housing and each latched element has a latched hole selectively engaging with the latching bar to prevent the male connector from falling out of the female connector.

Abstract: A flexible antenna comprises a filmed layer, a flexible radiation conductor and a support member. The flexible radiation conductor has a crooked form and a feeder terminal. The filmed layer covers the upper surface of the flexible radiation conductor. The support member has a through-hole. The lower surface of the flexible radiation conductor is stuck to the upper surface of the support member. The feeder terminal is inserted through the through-hole to protrude from the lower surface of the support member. The flexible radiation conductor and the crooked feeder terminal thereof replace the conventional radiation conductor circuit layer and metallic contact terminal to overcome the problem that the conventional contact terminal damages the radiation conductor layer and protrudes the filmed layer. Further, the present invention integrates FPC and LDS technologies to enable the flexible radiation conductor to be arbitrarily stuck to complicated planes or complicated curved surfaces.

Abstract: A multiband antenna comprises a feeder member, a radiation conductor, a short-circuit member, a grounding plane and a feeder cable. The feeder member has a first coupling side. Two end of the short-circuit member are respectively connected with the radiation conductor and the grounding plane. The short-circuit member has a second coupling side parallel to and conformable to the first coupling side with a gap existing therebetween. The feeder cable has a central wire and an outer wire respectively connected with the feeder member and the grounding plane. The feeder member transmits a high-frequency fed-in signal to the short-circuit member in a capacitive coupling way. The multiband antenna of the present invention has a simplified antenna structure, a miniaturized size and wide frequency bands.

Abstract: The invention provides a lamp circuit of a light emitting device, which comprises a capacitor, a rectification unit, a current limiting unit, and a light emitting device. The capacitor is connected to the two lamp contacts of the lamp holder of the electrical ballast to change the resonant frequency of the resonant circuit of the electrical ballast. The rectification unit is connected to the capacitor, and utilized to rectify a sine-wave voltage to a direct current voltage. The current limiting unit is connected to the rectification unit, outputting a direct current corresponding to the direct current voltage. The light emitting device is connected to the current limiting unit and the rectification unit to generate a light source. With the invention, the light emitting device can be installed directly in a lamp holder of a conventional fluorescent lamp.

Abstract: A limiting current circuit that has output short circuit protection is connected to an external voltage source and comprises an output terminal, an input current unit, a driving transistor, a voltage control resistor, a voltage control transistor and a delay unit. The output terminal is connected to a load and has an output current. The driving transistor has an internal resistance, a drain current and a gate voltage. The voltage control resistor has a resistor voltage. The voltage control transistor has an internal resistance and a parasitic capacitance. The delay unit makes the resistor voltage charging the parasitic capacitance to extend the period of lower internal resistance of the voltage control transistor and the period of higher internal resistance of the driving transistor, makes the internal resistance of the voltage control transistor is less than the internal resistance of the driving transistor when the load is shorted.