Abstract:
A rolling shutter and a slat for use in a rolling shutter are provided. The slat comprises an engaging track located at a first horizontal edge and a receptacle track located at a second horizontal edge. Illustratively, the engaging track has a hook-shaped profile and is disposed at an acute angle, and the receptacle track comprises a lip and a guard defining a space adapted to receive therein an engaging track of an adjacent slat.
Abstract:
A rolling shutter and a slat for use in a rolling shutter are provided. The slat comprises a first boss and a second boss, wherein each boss is c-shaped and adapted to receive a retention screw, and wherein each boss projects from one or more of interior surfaces of the shutter slat.
Abstract:
A polymer composition having high thermal conductivity and dielectric strength is provided. The polymer composition comprises a base polymer matrix and a thermally-conductive, electrically-insulating material. A reinforcing material such as glass can be added to the composition. The polymer composition can be molded into packaging assemblies for electronic devices such as capacitors, transistors, and resistors.
Abstract:
An ESD protection circuit (81) and a method for providing ESD protection is provided. In some embodiments, an N-channel transistor (24), which can be ESD damaged, is selectively turned on and made conducting. The purpose of turning on the N-channel transistor (24) is to maximize the Vt1 of the N-channel transistor (24). Vt1 is the drain-to-source voltage point at which the parasitic bipolar action of the N-channel transistor (24) first occurs. In some embodiments, the ESD protection circuit (81) includes a diode (64) which provides an additional current path from the I/O pad 31 to a first power supply node (76).
Abstract:
A system and method are provided for reviewing and updating a subscriber's telecommunications services using a graphical user interface via multiple data networks. A data message is received at an intelligent peripheral from the graphical user interface via at least one of the data networks. The data message indicates a subscriber's desired update to a selected service. The data message is converted into a protocol compatible with a service control point. The converted data message is identical to a data message that the intelligent peripheral would create if the subscriber had entered the desired update via an interactive voice response system. The converted data message is transmitted to the service control point, which updates the service in accordance with the subscriber's update. Thus, the service is updated substantially contemporaneously with the request. Moreover, the subscriber retains the ability to update and review service data via the interactive voice response.
Abstract:
In a radio access network, novel systems and methods reduce processing delay, and improve integration with IP networks, by separating user data from connection management and control data at a Node B or at a base station. The user data are routed to an IP (Internet Protocol) switch, whereas the connection management and control data are routed to a centralized radio network controller (RNC). Pursuant to a second embodiment of the invention, a centralized RNC provides improved radio resource management (RRM) functionality by handing all connection management and control data for a plurality of Node B's, thereby simplifying the switching of user data throughout the radio access network. Pursuant to a third embodiment of the invention, a smart IP switch is equipped to switch user data without core network (CN) involvement. Downlink user data are switched independently of uplink user data.
Abstract:
A method of making a thermally-conductive casing for an optical head in a disc player is provided. The method involves molding a polymer composition comprising: i) about 20% to about 80% by weight of a polymer matrix such as polyphenylene sulfide, and ii) about 20% to about 80% by weight of a thermally-conductive material such as carbon graphite into a casing for the optical head. A reinforcing material, such as glass, and other additives, such as flame retardants, can be incorporated into the polymer composition.
Abstract:
An apparatus which is useful on pitched roofs includes structural features which help keep roofing materials from sliding off the roof. The apparatus also protects roofers from heat and abrasion from the roof surface on which they are working. A substantially solid foam rubber wedge forms one component of the apparatus, and a substantially planar pad forms the other component of the apparatus. These components are placed in proximity to each other so that the roofer, when situated on the pad, can readily reach roofing materials disposed against the wedge. The wedge resiliently compresses when roofing materials are placed on its upper surface. This resilient compression, the angle of orientation of the wedge's upper surface, and the frictional engagement of the wedge with the roof surface each contribute in varying degrees to holding roofing materials in position on the roof. The pad is made of material which reduces the amount of heat passing from the roofing surface to the upper surface of the pad on which the roofer is situated.
Abstract:
An apparatus which is useful on pitched roofs includes structural features which help keep roofing materials from sliding off the roof. The apparatus also protects roofers from heat and abrasion from the roof surface on which they are working. A substantially solid foam rubber wedge forms one component of the apparatus, and a substantially planar pad forms the other component of the apparatus. These components are placed in proximity to each other so that the roofer, when situated on the pad, can readily reach roofing materials disposed against the wedge. The wedge resiliently compresses when roofing materials are placed on its upper surface. This resilient compression, the angle of orientation of the wedge's upper surface, and the frictional engagement of the wedge with the roof surface each contribute in varying degrees to holding roofing materials in position on the roof. The pad is made of material which reduces the amount of heat passing from the roofing surface to the upper surface of the pad on which the roofer is situated.