Abstract: A method of forming a dual damascene structure comprises the steps of providing a substrate having a first conductive layer formed thereon, and then sequentially forming a first dielectric layer, an anti-reflection layer and a second dielectric layer over the substrate. Next, the first dielectric layer, the anti-reflection layer and the second dielectric layer are patterned to form a first opening that exposes the conductive layer. Thereafter, the second dielectric layer is patterned to form a trench (or second opening) in a position above the first conductive layer. The trench and the first opening together form an opening of the dual damascene structure. Finally, a second conductive material is deposited into the opening and the trench to form conductive lines and the dual damascene structures.

Abstract: Apparatus, and an associated method, provides iconic representations of actions available to be performed upon an object of a particular datatype. The iconic representations are displayed, for instance, as part of a toolbar on a computer display. A representation of an object upon which an action is to be performed is dragged-and-dropped upon the iconic representation of the selected action to invoke that action upon both the dropped object and the object of a particular datatype.

Abstract: Laminae suitable for use in molds for forming retroreflective cube corner elements and methods for making such laminae are disclosed. A representative lamina includes a first row of cube corner elements disposed in a first orientation and a second row of optically opposing cube corner elements disposed. The working surface of a lamina is provided with a plurality of cube corner elements formed by the optical surfaces defined by three groove sets. Opposing first and second groove sets are formed in the working surface of a lamina. The first groove set forms a plurality of structures having first and second optical surfaces disposed in mutually perpendicular planes that intersect along a reference edge. The second groove set forms a corresponding plurality of structures on the opposite side of the lamina. A third groove is formed in the working surface of the lamina along an axis substantially perpendicular to the axes of the grooves of the first and second groove sets.

Abstract: A method is disclosed for manufacturing a plurality of laminae for use in a mold suitable for use in forming retroreflective cube corner articles. Each lamina has opposing first and second major surfaces defining therebetween a first reference plane. Each lamina further includes a working surface connecting the first and second major surfaces. The working surface defines a second reference plane substantially parallel to the working surface and perpendicular to the first reference plane and a third reference plane perpendicular to the first reference plane and the second reference plane. The method includes orienting a plurality of laminae to have their respective first reference planes parallel to each other and disposed at a first angle relative to a fixed reference axis. At least two groove sets are formed in the working surface. Each groove set includes at least two parallel adjacent V-shaped grooves in the working surface of the laminae.

Abstract: A master mold suitable for use in the manufacture of retroreflective sheeting is disclosed. The master mold comprises an array of cube corner elements formed by two intersecting groove sets. The cube comer elements comprise a tetragonal base, three tetragonal optical faces that mutually intersect at a point to define a cube corner apex, and two non-optical faces. Also disclosed is a method for making a master mold suitable in the manufacture of retroreflective sheeting is disclosed. A first groove set including a plurality of parallel grooves is formed in the working surface of a suitable substrate. Each groove in the first groove set forms a first optical surface and a second non-optical surface. Adjacent grooves in the first groove set are separated by a distance sufficient to define therebetween a structure defined by a first optical surface on one side, a top surface, and a first non-optical surface opposite the first optical surface.

Abstract: A cube corner article and method of manufacturing the article from a series of directly machinable unitary substrates. The method of manufacture comprises the first step of providing an initial unitary directly machinable substrate of material suitable for forming retroreflective surfaces. Then, a first cube corner element array zone is formed having a plurality of geometric structures including cube corner elements. The zone is created by directly machining at least two sets of parallel grooves in the substrate. A replica of the cube corner element array zone is formed as an additional unitary substrate suitable for forming retroreflective surfaces. Portions of the replica substrate material are removed. The removal of these portions forms at least two intersecting cavities bounded by side walls in the replica at a depth at least that of the cube corner elements formed by the groove sets.

Abstract: The present invention provides improved cube corner retroreflective articles which exhibit a wide range of retroreflective entrance angularity in at least one plane, and preferably in two or more planes. An article in accordance with the present invention includes a structured surface having at least one array of cube corner elements formed by three intersecting sets of substantially parallel grooves. Each cube corner element includes a base triangle bonded by one groove from each of the three intersecting groove sets, the base triangle being scalene.

Abstract: A cube corner article and method of manufacturing the article from a series of directly machinable unitary substrates. The method of manufacture comprises the first step of providing an initial unitary directly machinable substrate of material suitable for forming retroreflective surfaces. Then, a first cube corner element array zone is formed having a plurality of geometric structures including cube corner elements. The zone is created by directly machining at least two sets of parallel grooves in the substrate. A replica of the cube corner element array zone is formed as an additional unitary substrate suitable for forming retroreflective surfaces. Portions of the replica substrate material are removed. The removal of these portions forms at least two intersecting cavities bounded by side walls in the replica at a depth at least that of the cube corner elements formed by the groove sets.

Abstract: A system and method for distributing data to multiple computer locations associated with a computer network determines which of the multiple network computer locations are to receive a data distribution, and then generates a first message indicating the data comprising the data distribution and the network computer locations intended to receive the data distribution. The first message and the data distribution are transmitted to the network such that each of the multiple network locations is capable of receiving the data distribution. The multiple network computer locations examine the first message so that each network computer location can determine whether it is an intended location for receiving the data distribution. Then, one or more intended network locations receive the data distribution.

Abstract: An on-line directory service includes a server associated with a database containing a plurality of directory listings including advertising information. A customer subscribing to the on-line directory service may selectively view directory listings from the database by initiating a search research at a personal computer linked with the server. The search request may specify a particular service or product, a particular geographical preference or other search parameters. The search request is then forwarded to the server which accesses the database and retrieves the responsive information for the customer. To place a telephone call to a service provider listed in response to the customer search request, the customer merely activates a telephone icon associated with the selected service or product provider. The server then obtains a telephone number associated with the selected provider from the database and automatically dials the telephone number.

Abstract: A cube corner article has a plurality of geometric structures formed by at least three intersecting groove sets. Each geometric structure has three faces arranged as a cube corner element. Some of the geometric structures also have a fourth face which is not a part of a cube corner element. At least one of the grooves in the three intersecting groove sets has a first and second side surface extending uniformly from a groove vertex, the first side surface forming one of the three faces and the second side surface forming the fourth face.

Abstract: In a telecommunications network, a network host call server determines whether a call placed using a prepaid calling card was issued by a vendor other than the telecommunications carrier and if so, queries a database associated with the issuing vendor for information representing the telecommunications services associated with the card.

Abstract: The present invention provides improved cube corner retroreflective articles which exhibit a wide range of retroreflective entrance angularity in at least one plane, and preferably in two or more planes. An article in accordance with the present invention includes a structured surface having at least one array of cube corner elements formed by three intersecting sets of substantially parallel grooves. Each cube corner element includes a base triangle bonded by one groove from each of the three intersecting groove sets, the base triangle being scalene.

Abstract: In a telecommunications network operable for routing calls such as 800 calls, to a plurality of customer destinations, a system allows the customer to configure the routing of calls by entering selected call routing criteria at a computer at the customer site. Selected information representative of the call routing criteria is then transmitted to a central processor system which then composes a set of call handling statements, also called time features, which the network then compiles into an executable routing scheme for routing calls.

Abstract: The present invention provides cube corner retroreflective articles that have improved retroreflective performance in at least one plane, and preferably in two or more planes. A preferred article is a retroreflective sheeting that includes a structured surface having at least one array of cube corner elements oriented at a predetermined angle relative to the edge of the article. The angle is selected to align one broad plane of entrance angularity approximately parallel with the edge of the sheeting and another broad plane of entrance angularity approximately perpendicular to the edge of the sheeting. Individual cube corner elements on the structured surface are canted to yield an isosceles base triangle or a scalene base triangle. Additionally, the structured surface may include a plurality of cube corner element arrays arranged in a tiled fashion to yield greater than two planes of broad entrance angularity.

Abstract: A message initiated at a first terminal and transmitted over a first communications link to a relay interface may be relayed to a second terminal over a second communications link by converting the words in the message received at the relay interface into a format compatible for use by the second terminal. Then, the formatted words are individually analyzed so that corrections may be made prior to display at the second terminal. The formatted words may be corrected manually by a relay agent or automatically utilizing a computer program associated with a relay terminal at the relay interface. Then, the analyzed words are displayed at the second terminal. The relay interface may be used for unilateral and bilateral communication between a standard telephone set and a telecommunications device for the deaf (TDD).

Abstract: A system for recording the services provided by a telecommunications network in response to a service request generates a number of individual records corresponding to the number of network elements providing telecommunications services in response to the request. Each individual record contains information relating to the services provided by the corresponding network element. Those service requests requiring the services of two or more network elements are assigned an identifier which is stored in each corresponding record. Records having a common identifier are matched with one another and merged into a single network record corresponding to the service request. Billing statements and statistical reports may be derived from the single network record.

Abstract: The present invention is directed to a method and apparatus that automates the database recovery process. A person not technically skilled in the use of a computer can operate the new procedure. The process operates under a system in which menus known as "panels" prompt the user for information and process selection. The user merely selects one of the panels to start and operate the system. Each recovery procedure follows the same general series of steps comprising of initialization of system location and variables, selection by the operator of major functions including research, recovery, and cleanup, process of the function and function options, and execution of the mode in which the function will be processed. This panel driven system results in a significant reduction of the amount of time required for recovery, at least a twenty percent decrease for the period.

Abstract: A light directing film including a first surface and a second structured surface. The structured surface includes a repeating pattern of prism zones including at least a first zone having a plurality of prism elements with peaks disposed at a first distance from a reference plane and a second zone having a plurality of prism elements with peaks disposed less than the first distance from a reference plane. The width of the first zone preferably measures less than about 300 microns.