Abstract:
Inventorying communications circuits may be provided. Consistent with embodiments of the present invention, systems and methods are disclosed for inventorying communication circuits. A calculation may provide a facility requirement value corresponding to a required number of service pair to serve a location with a predetermined service quality. Then, it may be determined that an available plurality of service pairs equal to the facility requirement value is available from a switching center to the location. Next, a circuit tag may be created corresponding to the available plurality of service pair. A plurality of service tags may then be created. Each the plurality of service tags may respectively correspond to each of the available plurality of service pair. The plurality of service tags may be sequentially numbered. Then, the circuit tag and the plurality of the service tags may be stored in an inventory database.
Abstract:
Certain applicator liquids and method of making the applicator liquids are described. The applicator liquids can be used to form nanotube films or fabrics of controlled properties. An applicator liquid for preparation of a nanotube film or fabric includes a controlled concentration of nanotubes dispersed in a liquid medium containing water. The controlled concentration is sufficient to form a nanotube fabric or film of preselected density and uniformity.
Abstract:
Electro-mechanical switches and memory cells using vertically-disposed nanofabric articles and methods of making the same are described. An electro-mechanical device, includes a structure having a major horizontal surface and a channel formed therein. A conductive trace is in the channel; and a nanotube article vertically suspended in the channel, in spaced relation to a vertical wall of the channel. The article is electro-mechanically deflectable in a horizontal direction toward the conductive trace. Under certain embodiments, the vertically suspended extent of the nanotube article is defined by a thin film process. Under certain embodiments, the vertically suspended extent of the nanotube article is about 50 nanometers or less. Under certain embodiments, the nanotube article is clamped with a conducting material disposed in porous spaces between some nanotubes of the nanotube article. Under certain embodiments, the nanotube article is formed from a porous nanofabric. Under certain embodiments, the nanotube article is electromechanically deflectable into contact with the conductive trace and the contact is either a volatile state or non-volatile state depending on the device construction. Under certain embodiments, the vertically oriented device is arranged into various forms of three-trace devices. Under certain embodiments, the channel may be used for multiple independent devices, or for devices that share a common electrode.
Abstract:
A guide for use in cutting carpet and a method of joining two portions of cut carpet in edge-to-edge relationship has a base formed as a lower portion and an upper portion interengaged through a longitudinal slideway and presenting an upper ramp surface. The upper portion has a longitudinal channel along which a knife blade can pass to cut a carpet portion laid on the ramp. The lower portion has a vertical wall vertically below the channel and against which the cut edge of first carpet portion is located to abut during cutting of the second carpet portion on the ramp so that when the guide is removed the two cut edges will fall into edge-to-edge abutment for joining together.
Abstract:
A cutting guide for use in making a cut in a carpet comprises an elongate base including a substantially flat upper surface portion and a channel which extends along the base. The inner side walls of the channel are at an oblique angle relative to the upper surface portion so that when the guide is placed underneath a carpet and a knife drawn along the channel in contact with a side wall, the cut edge thereby produced in the carpet is at an oblique angle to the plane of the carpet. When two such edges of different portions of carpet are abutted together, a tidy unobtrusive seam is produced.
Abstract:
Inventorying communications circuits may be provided. Consistent with embodiments of the present invention, systems and methods are disclosed for inventorying communication circuits. A calculation may provide a facility requirement value corresponding to a required number of service pair to serve a location with a predetermined service quality. Then, it may be determined that an available plurality of service pairs equal to the facility requirement value is available from a switching center to the location. Next, a circuit tag may be created corresponding to the available plurality of service pair. A plurality of service tags may then be created. Each the plurality of service tags may respectively correspond to each of the available plurality of service pair. The plurality of service tags may be sequentially numbered. Then, the circuit tag and the plurality of the service tags may be stored in an inventory database.
Abstract:
Methods of Using Preformed Nanotubes to Make Carbon Nanotube Films, Layers, Fabrics, Ribbons, Elements and Articles are disclosed. To make various articles, certain embodiments provide a substrate. Preformed nanotubes are applied to a surface of the substrate to create a non-woven fabric of carbon nanotubes. Portions of the non-woven fabric are selectively removed according to a defined pattern to create the article. To make a nanofabric, a substrate is provided. Preformed nanotubes are applied to a surface of the substrate to create a non-woven fabric of carbon nanotubes wherein the non-woven fabric is substantially uniform density.
Abstract:
Resistive elements include a patterned region of nanofabric having a predetermined area, where the nanofabric has a selected sheet resistance; and first and second electrical contacts contacting the patterned region of nanofabric and in spaced relation to each other. The resistance of the element between the first and second electrical contacts is determined by the selected sheet resistance of the nanofabric, the area of nanofabric, and the spaced relation of the first and second electrical contacts. The bulk resistance is tunable.
Abstract:
A system routes local toll-free communications to a toll-free communications address via local switches and/or local network onto interconnecting local providers with local access settlement rates, thereby allowing a local rather than toll cost structure of the communication. When an originating communications address is identified as an LCA, intraLATA, or otherwise local communications address, the system routes the local toll-free call from the network to participating local switches that service the subscriber's terminating communications. According to exemplary embodiments, the originating communications are separated between the LCA and the rest of the LATA based upon the NPA-NXXs that are considered local to the subscriber's terminating number. The system also provides for communicating and routing local toll free communications and for reporting each local toll free communication to the subscriber.
Abstract:
Nanotube ESD protective devices and corresponding nonvolatile and volatile nanotube switches. An electrostatic discharge (ESD) protection circuit for protecting a protected circuit is coupled to an input pad. The ESD circuit includes a nanotube switch electrically having a control. The switch is coupled to the protected circuit and to a discharge path. The nanotube switch is controllable, in response to electrical stimulation of the control, between a de-activated state and an activated state. The activated state creates a current path so that a signal on the input pad flows to the discharge path to cause the signal at the input pad to remain within a predefined operable range for the protected circuit. The nanotube switch, the input pad, and the protected circuit may be on a semiconductor chip. The nanotube switch may be on a chip carrier. The deactivated and activated states may be volatile or non-volatile depending on the embodiment. The ESD circuit may be repeatedly programmed between the activated and deactivated states so as to repeatedly activate and deactivate ESD protection of the protected circuit. The nanotube switch provides protection based on the magnitude of the signal on the input pad.