Abstract: An electrical connector for mounting on an external circuit board includes: an insulating body; a terminal module assembled on the insulating body and including a plurality of mating terminals, an insulating carrier with an accommodating cavity, plural intermediate terminals fixed on one side of the insulating carrier and electrically connected to the mating terminals, plural pin terminals fixed on the other side of the insulating carrier, and a magnetic module accommodated in the accommodating cavity and electrically connected to the intermediate terminals and the pin terminals, wherein the insulating carrier is a two-piece housing, the intermediate terminals are held in one housing piece, and the pin terminals are held in the other housing piece.

Abstract: A signal transmission circuit is configured for transmitting control information from a secondary side of a power converter to a primary side of the power converter. The signal transmission circuit includes a transmitter circuit, a signal transformer and a detection circuit. The transmitter circuit is configured to generate a ramp signal at least according to a first control signal outputted from the secondary side. The first control signal indicates the control information provided for a switch in the primary side. The signal transformer, coupled to the transmitter circuit, is configured to convert the ramp signal to generate an output signal. The output signal includes a positive-going component and a negative-going component to indicate the control information. The detection circuit, coupled to the signal transformer, is configured to detect the positive-going component and the negative-going component to provide the control information for the switch.

Abstract: An electrical connector for mounting on an external circuit board includes: an insulating body having an upper receiving space and a lower receiving space; a terminal module assembled on the insulating body and including plural pin terminals, each pin terminal having a pin for mounting on the external circuit board, wherein the terminal module is capable of being modified to support 1G or 2.5G or 5G or 10G or 25G or 40G signal transmission while keeping arrangement pattern of the pins unchanged in order to be mounted on the same external circuit board.

Abstract: An electrical connector includes: an insulating body defining a mating space; and a terminal module assembled to the insulating body and having a circuit board and plural mating terminals mounted on the circuit board, wherein: each of the mating terminals has a contact portion extending obliquely backward, a bending portion bent backward from a front end of the contact portion, a connecting portion extending rearward from a rear end of the bending portion, and a mounting portion vertically extending from a rear end of the connecting portion for mounting on the circuit board; and a front end of the circuit board extends forward into the mating space.

Abstract: An electrical connector includes an insulating body and first through eighth terminals sequentially arranged in a lateral direction in the insulating body, wherein the first and second terminals, the third and sixth terminals, the fourth and fifth terminals, and the seventh and eighth terminals are respectively used to transmit a pair of differential signals, each terminal including: a mating portion for mating to a mating connector; a tail portion opposite to the mating portion; and a connecting portion connected therebetween, the connecting portions of the third terminal to the fifth terminal are all provided with a coupling portion; wherein the coupling portions of the third through fifth terminals are in three different planes, respectively, and the coupling portion of the fifth terminal and the coupling portion of the third terminal at least partially overlap in a longitudinal direction perpendicular to the lateral direction.

Abstract: A system and method for reducing call establishment delay in wireless network is provided, in which a network node establishes a call to a wireless terminal controlled by an AP via a server. The wireless terminal notifies the server of its listen interval. In the power saving mode, the wireless terminal wakes up every listen interval and listen the beacon to check whether any buffered packet for it. When the wireless terminal learns from the beacon that there are packets waiting, it communicates with the access point to retrieve them. The server records a listen time at which the wireless terminal will wake up and listen to the AP based on the listen interval. When a network node calls the wireless terminal, the server buffers the request for a time interval based on the listen time, and then sends the request to the wireless terminal.

Abstract: A system and method for reducing call establishment delay in wireless network is provided, in which a network node establishes a call to a wireless terminal controlled by an AP via a sever. The wireless terminal notifies the server of its listen interval. In the power saving mode, the wireless terminal wakes up every listen interval and listen the beacon to check whether any buffered packet for it. When the wireless terminal learns from the beacon that there are packets waiting, it communicates with the access point to retrieve them. The server records a listen time at which the wireless terminal will wake tip and listen to the AP based on the listen interval. When a network node calls the wireless terminal, the server buffers the request for a time interval based on the listen time, and then sends the request to the wireless terminal.

Abstract: A system and method for reducing call establishment delay in wireless network is provided, in which a network node establishes a call to a wireless terminal controlled by an AP via a server. The wireless terminal notifies the server of its listen interval. In the power saving mode, the wireless terminal wakes up every listen interval and listen the beacon to check whether any buffered packet for it. When the wireless terminal learns from the beacon that there are packets waiting, it communicates with the access point to retrieve them. The server records a listen time at which the wireless terminal will wake up and listen to the AP based on the listen interval. When a network node calls the wireless terminal, the server buffers the request for a time interval based on the listen time, and then sends the request to the wireless terminal.

Abstract: A system and method for reducing call establishment delay in wireless network is provided, in which a network node establishes a call to a wireless terminal controlled by an AP via a sever. The wireless terminal notifies the server of its listen interval. In the power saving mode, the wireless terminal wakes up every listen interval and listen the beacon to check whether any buffered packet for it. When the wireless terminal learns from the beacon that there are packets waiting, it communicates with the access point to retrieve them. The server records a listen time at which the wireless terminal will wake tip and listen to the AP based on the listen interval. When a network node calls the wireless terminal, the server buffers the request for a time interval based on the listen time, and then sends the request to the wireless terminal.

Abstract: A system and method for reducing call establishment delay in wireless network is provided, in which a network node establishes a call to a wireless terminal controlled by an AP via a server. The wireless terminal notifies the server of its listen interval. In the power saving mode, the wireless terminal wakes up every listen interval and listen the beacon to check whether any buffered packet for it. When the wireless terminal learns from the beacon that there are packets waiting, it communicates with the access point to retrieve them. The server records a listen time at which the wireless terminal will wake up and listen to the AP based on the listen interval. When a network node calls the wireless terminal, the server buffers the request for a time interval based on the listen time, and then sends the request to the wireless terminal.

Abstract: A handsaw includes a saw body, and an alignment and calibration device detachably mounted on the saw body. The saw body includes a handle and a blade mounted on the handle. The alignment and calibration device includes a housing detachably mounted on the handle of the saw body, a light emitting member mounted on the housing to emit a linear light beam outwardly, a plurality of adjusting screws adjustably mounted on a first side of the housing, and a level mounted on a second side of the housing. Thus, the alignment and calibration device is combined with the saw body to guide the sawing direction of the blade and is operated individually to form a vertical indication line, thereby enhancing the versatility of the handsaw.

Abstract: This present invention provides the preparation of a manganese oxide-ferric oxide-supported nano-gold catalyst and a process for subjecting carbon monoxide and oxygen to interaction resulting in the formation of carbon dioxide in a hydrogen-rich environment by a manganese oxide-ferric oxide-supported nano-gold catalyst to remove carbon monoxide in hydrogen stream. The size of the nano-gold particle is less than 5 nm and supported on mixed oxides MnO2/Fe2O3 in various molar ratios. Preferential oxidation of CO in the presence of CO, O2 and H2 by the manganese oxide-ferric oxide-supported nano-gold catalyst is carried out in a fixed-bed reactor in the process of the present invention. The O2/CO molar ratio is in the range of 0.5 to 4. The manganese oxide-ferric oxide-supported nano-gold catalyst of the present invention is applied to reduce CO concentration in hydrogen steam to less than 100 ppm to prevent CO from contaminating the electrodes of a fuel cell.

Abstract: This present invention provides the preparation of a manganese oxide-cerium oxide-supported nano-gold catalyst and a process for subjecting carbon monoxide and oxygen to interaction resulting in the formation of carbon dioxide in a hydrogen-rich environment by a manganese oxide-cerium oxide-supported nano-gold catalyst to remove carbon monoxide in hydrogen stream. The size of the nano-gold particle is less than 5 nm and supported on mixed oxides MnO2/CeO2 in various molar ratios. Preferential oxidation of CO in the presence of CO, O2 and H2 by the manganese oxide-cerium oxide-supported nano-gold catalyst is carried out in a fixed-bed reactor in the process of the present invention. The CO/O2 molar ratio is in the range of 0.5 to 3. The manganese oxide-cerium oxide-supported nano-gold catalyst of the present invention is applied to reduce CO concentration in hydrogen steam to less than 100 ppm to prevent CO from contaminating the electrodes of a fuel cell.

Abstract: A system and method for reducing call establishment delay in wireless network is provided, in which a network node establishes a call to a wireless terminal controlled by an AP via a server. The wireless terminal notifies the server of its listen interval. In the power saving mode, the wireless terminal wakes up every listen interval and listen the beacon to check whether any buffered packet for it. When the wireless terminal learns from the beacon that there are packets waiting, it communicates with the access point to retrieve them. The server records a listen time at which the wireless terminal will wake up and listen to the AP based on the listen interval. When a network node calls the wireless terminal, the server buffers the request for a time interval based on the listen time, and then sends the request to the wireless terminal.

Abstract: A method and a system of providing cellular/wireless network dual mode communication services are provided. The wireless network interface normally stays in the standby mode, and the cellular interface is closed. When receiving calls, the cellular system receives the calls and wakes up the wireless network system to communicate to the calls. Hence, the power consumption of the dual mode phone is minimized.

Abstract: A handsaw includes a handle, a blade mounted on the handle, and a light emitting member mounted on the handle to produce a longitudinal light source aligning with a lower edge of the blade. Thus, the sawing line of the workpiece and the longitudinal light source of the light emitting member are directed in the same direction, so that a worker can drive the blade to move in the common direction indicated by the sawing line of the workpiece and the longitudinal light source of the light emitting member to cut the workpiece exactly, thereby facilitating the worker sawing the workpiece, and thereby greatly enhancing precision of sawing the workpiece.