Abstract: An optical connector defining a receiving space for receiving a corresponding plug includes an insulative housing, an optical module mounted to the insulative housing, and a protecting mechanism assembled into the receiving space. The insulative housing has a front surface at a rear side of the receiving space. The optical module has a light receiving element located behind the front surface and forwardly exposed to the receiving space. The protecting mechanism has a door lying in a vertical plane in front of the front surface to shield the light receiving element along an insertion direction when the plug is not inserted into the receiving space, and moving downwardly out of the receiving space to unveil said light receiving element in said insertion direction when the plug is inserted into the receiving space.

Abstract: A valve having an outer housing defining a central bore with a fluid inlet and a fluid outlet. A check dart assembly, valve seat and piston assembly are retained within the central bore. The valve is moveable between open and closed positions in response to fluid flow into the fluid inlet of the valve.

Abstract: A media gateway comprising a plurality of network interface cards, at least one switch matrix, and a server module including at least one unlicensed mobile access module is provided. A method and computer-readable medium for activating an unlicensed mobile access channel for a mobile station in a network is provided. A media gateway receives a request to allocate an unlicensed mobile access termination. The request is received in response to at least one of a discovery registration by the mobile station and a handover request by the mobile station. The mobile station is serviced by at least one of a wireline network and a wireless network interfaced by the media gateway. The media gateway allocates the unlicensed mobile access termination. The termination has an identifier associated therewith. The media gateway receives at least one transmit parameter associated with the mobile station, and completes bearer set-up of the unlicensed mobile access channel according to the at least one transmit parameter.

Abstract: Complexity for a video frame after a special event is estimated and used for encoding the frame. The complexity for a key frame of a special event is estimated based on its intra activity and a complexity of a previously encoded key frame in the video stream prior to the special event. The complexity for a dependent frame after a special event is estimated based on a motion estimation cost for the dependent frame and a complexity of a previously encoded dependent frame prior to the special event.

Abstract: A method and apparatus are described including determining a target congestion index, determining a congestion index based on information from a last back-off round, comparing the target congestion index with the congestion index, performing one of increasing a triggering set size by a first factor and decreasing the triggering set size by a second factor responsive to the comparison, determining if a communications medium is idle, adjusting a back-off counter responsive to the third determining act, determining if the back-off counter is equal to a triggering point in the triggering set and transmitting data responsive to the fourth determining act.

Abstract: An electrical connector defining a receiving cavity for receiving a corresponding plug includes an insulative housing and a number of contacts retained in the insulative housing. The contacts include a number of first contacts which are arranged in a row along a transverse direction of the insulative housing. The first contacts include two pairs of differential signal contacts and a grounding contact between said two pairs of differential signal contacts. Each first contact has a contact portion extending into the receiving cavity, a tail portion extending out of the insulative housing and a connecting portion between the contact portion and the tail portion. The connecting portion of the grounding contact is wider than that of the differential signal contacts in the transverse direction.

Abstract: Embodiments include processes, systems, and devices for reshaping virtual baseband signals for transmission on non-contiguous and variable portions of a physical baseband, such as a white space frequency band. In the transmission path, a spectrum virtualization layer maps a plurality of transmission components associated with a transmission symbol produced by a physical layer protocol to sub-carriers of the allocated physical frequency band. The spectrum virtualization layer then outputs a physical transmission symbol composed of time-domain samples derived from the mapped frequency components and a cyclic prefix. In the receive path, a time-domain symbol received on the physical baseband is reshaped and equalized by the virtual spectrum layer in order to recompose a time-domain samples of a transmission stream in the virtual baseband.

Abstract: Embodiments include processes, systems, and devices for reshaping virtual baseband signals for transmission on non-contiguous and variable portions of a physical baseband, such as a white space frequency band. In the transmission path, a spectrum virtualization layer maps a plurality of frequency components derived from a transmission symbol produced by a physical layer protocol to sub-carriers of the allocated physical frequency band. The spectrum virtualization layer then outputs a time-domain signal derived from the mapped frequency components. In the receive path, a time-domain signal received on the physical baseband is reshaped by the virtual spectrum layer in order to recompose a time-domain symbol in the virtual baseband.

Abstract: A connector (100) includes an insulative housing (1) having a receiving slot (141) formed therein; an optical module (3) for transmitting optical data and being movably received in the receiving slot; a compression coil spring (4) having a first end for biasing the optical module to move in the receiving slot; a metal shell (7) shielding the insulative housing; and a sleeve (40) encircling a second end of the compression coil spring (4) opposite to the first end for retaining the compression coil spring therein.

Abstract: An electrical connector defining a receiving opening for receiving a corresponding plug includes an insulative housing, a number of contacts and an optical module attached to the insulative housing. The insulative housing has a tongue extending into the receiving opening and a cavity behind the receiving opening. Each contact has a retaining portion retained in the insulative housing, a contact portion extending to the tongue, a tail portion and a connecting portion connecting the retaining portion and the tail portion. The optical module is forwardly assembled into the cavity from a rear side of the insulative housing and exposed to the receiving opening. The connecting portions are offset relative to the contact portions of the corresponding contacts in a transverse direction so as to leave said cavity open rearward and allow said optical module to be assembled into the cavity from the rear side of the insulative housing.

Abstract: A connector includes a connector body, a cover movably attached to the connector body, and a limiting mechanism retaining the cover to the connector body. The connector has a mating port for receiving a mating connector, a tongue with a number of contacts exposed to the mating port, and an optical module forwardly exposed to a rear side of the mating port. The cover has a base to cover a front end of the mating port, and an insertion portion extending into the mating port to cover the contacts along an up to down direction and the optical module along a front to back direction. The limiting mechanism can prevent the cover from detaching from the connector body when the cover is pulled out of the mating port.

Abstract: A method and apparatus are described including transmitting data if a slot count is equal to a triggering event, selecting a new triggering event responsive to a failed data transmission and replacing the triggering event with the new triggering event.

Abstract: A debris reducer for reducing debris within a fluid flow line having a lower screen that is secured within the flow line, the lower screen having a lower screen cage with a lower cutting portion. A debris reducer element is retained within the flow line and is moveably disposed with respect to the lower screen. The debris reducer element has an upper screen cage with an upper cutting portion. The upper and lower screen cages overlap and move the upper and lower cutting portions with respect to each other to reduce debris within fluid flowing through the flow line.

Abstract: An optical connector defining a receiving space for receiving a corresponding plug includes an insulative housing, an optical module mounted to the insulative housing, a rotary door retained at a rear side of the receiving space and a slider engaging with the door. The optical module has a light receiving element forwardly exposed to the receiving space and shielded by the door. The slide can drive the door moving along an inserting direction, and rotating along an anticlockwise direction at the same time to make the light receiving element of the optical module be exposed to the receiving space when the plug is inserted into the receiving space and pushes the slider backwardly.

Abstract: An electrical connector defining a receiving cavity for receiving a corresponding plug includes an insulative housing and a number of contacts retained in the insulative housing. The contacts include a number of first contacts which are arranged in a row along a transverse direction of the insulative housing. The first contacts include two pairs of differential signal contacts and a grounding contact between said two pairs of differential signal contacts. Each first contact has a contact portion extending into the receiving cavity, a tail portion extending out of the insulative housing and a connecting portion between the contact portion and the tail portion. The connecting portion of the grounding contact is wider than that of the differential signal contacts in the transverse direction.

Abstract: Ligustrazine aromatic acid ether derivative of general formula I, its preparation method, pharmaceutical composition and application, wherein Ar is selected from aryl substituted aryl and substituted styryl, R is selected from hydrogen and alkyl with no more than 6 carbon atoms.

Abstract: A plug connector (10) for mating with a receptacle connector (200) includes an insulative housing (1) having a base portion (11) and a tongue portion (12) extending forwardly beyond the base portion; a set of contacts (2) having contacting portions (211, 221) attached to the tongue portion for mating with the receptacle connector; and a metal shell (7) having a chamber (79) with the tongue portion extending therein, a plurality of openings (74) formed thereon for being locked in by a plurality of resilient fingers (2051) of the receptacle connector, and a set of embossments (76) located at front of the openings and protruding outwardly of the metal shell for interferentially engaging with the resilient fingers (2051).

Abstract: A connector (100) includes an insulative housing (1), a set of contacts (3) attached to the insulative housing, an insulator (2) retained in the insulative housing (1) and a metal shell (4) covering the insulative housing and the insulator. The insulative housing has a base portion (11) and a tongue potion (12) extending from the base portion (11). The base portion has a retaining slot (1110) and a pair of side walls (113), each side wall has a protrusion (1131) protruding outwardly from an outer face thereof. The insulator (2) is retained in the retaining slot and has a pair of side surfaces (23) facing inner faces of the side wall. At least one clearance is formed between the adjacent side surface and inner face and is corresponding to the protrusions (1131, 1132) respectively in a transverse direction.

Abstract: A connector (100) includes an insulative housing (1) having a receiving slot (121) formed therein and a post (1221) protruding forwardly towards the receiving slot (121); a set of contacts (2) retained in the insulative housing; an optical module (3) for transmitting optical data and being movably received in the receiving slot along a front-to-back direction; and a compression coil spring (4) sandwiched between the insulative housing and the optical module, and having a front end for biasing the optical module (3) forwardly and a rear end for being retained on the post (1221).

Abstract: A connector (100) includes an insulative housing (1) having a receiving slot (121) formed therein; a set of contacts (2) retained in the insulative housing; an optical module (3) for transmitting optical data and being movably received in the receiving slot along a front-to-back direction; a resilient member (4) for urging the optical module moving forwardly in the receiving slot; a stopping device (124,125) for orientating the optical module backwardly and sidewardly; a resisting device (75) for orientating the optical module along a height direction of the insulative housing; and a metal shell (7,8) shielding the insulative housing.