摘要:
A system produces of an empirical map of wireless communication coverage through a process of combining information from individual clients to produce a map which is then shared by all of the clients. The wireless coverage map aids in maintaining a reliable communications link. The empirical map is generated by combining information from a group of mobile wireless users. The group may consist of a fleet of trucks, taxicabs, government service vehicles, or the customers of a wireless service provider. The mobile vehicles must be equipped with a GPS device or be located by other means such as triangulation. While vehicles are moving, the quality of wireless communication, e.g., signal strength or communication continuity, is recorded for each vehicle as a function of positions. The data from all of the vehicles is combined to produce the empirical map. The empirical map may be maintained at a central site and subsets of the map replicated for individual vehicles. The map may then be used to direct mobile users to sites of superior communications reliability, warn mobile users when they are out of the service area or are about to leave the service area, or to regulate data communications automatically to stop and restart communications as a mobile vehicle passes through a gap in coverage.
摘要:
A radio frequency (RF) transponder (RF tag) is proposed, where a high dielectric constant material is used in operative cooperation with a tag antenna so that the distance of the tag antenna from conducting or absorbing surfaces may be reduced, and so the tag dimensions may be reduced.
摘要:
A combination of a radio frequency identification transponder (RFID Tag) and to a magnetic electronic article surveillance (EAS) device is disclosed.
摘要:
A novel thin and flexible radio frequency (RF) tag has a semiconductor circuit with logic, memory, and a radio frequency circuits, connected to an antenna with all interconnections placed on a single plane of wiring without crossovers. The elements of the package (substrate, antenna, and laminated covers) are flexible. The elements of the package are all thin. The tag is thin and flexible, enabling a unique range of applications including: RF ID tagging of credit cards, passports, admission tickets, and postage stamps.
摘要:
A semiconductor chip carrying integrated circuits has lead lines terminating in conductive terminal pads exposed to the exterior through openings in a passivation layer. The pads include pedestals or bumps extending up from them. Each of the pedestals includes a thin metallic adhesion layer deposited on the pad. A thick metallic layer of aluminum or an alloy of aluminum is deposited upon said thin metallic adhesion layer. The thick metallic layer includes at least one metal selected from the group consisting of aluminum, aluminum plus a small percentage of Cu, Ni, Si, or Fe. Several other alternative metals can be added to aluminum to form an alloy. The thick metallic layer forms the bulk of the height of the pedestal. An adhesion layer is deposited on the bump of aluminum composed of a thin film of titanium or chromium. A barrier layer is deposited on the adhesion layer composed of copper, nickel, platinum, palladium or cobalt. A noble metal consisting of gold, palladium, or platinum is deposited on the barrier layer. In a variation of the top surface, a thick cap of a reworkable bonding metal is deposited above the metallic bump as the top surface of said bump. The bump can be composed of a number of metals such as gold, copper, nickel and aluminum in this case with aluminum being preferred. In place of the adhesion and barrier metals one can employ a layer of titanium nitride deposited on said thick layer of metal.
摘要:
An integrated circuit chip package is described wherein the chip has an active face including a plurality of input and output pads. The chip is mounted face down on a pluralilty of flexible inner beam leads. The package's outer beam leads are bonded to pads residing on an underlying circuit board. A convective heat sink is thermally mounted to the reverse face of the chip, which heat sink is formed from folded thin metal sheet. The heat sink exhibits both minimum mass, and optimum cooling efficiency. The minimum mass reduces the cost of the heat sink through material savings and minimizes the possibility of damage to the package caused by sudden acceleration. The heat sink, in addition to itself being somewhat flexible, is provided with mounting points which are physically connected to the underlying circuit board via resilient connecting means.
摘要:
In various embodiments, the number of virtual universe avatars within a predetermined proximity from a designated first object in a virtual universe is determined. A condition that affects a load on a server computer supporting the designated first object in the virtual universe is determined. A second object is dynamically spawned within the virtual universe in response to determining that the number of virtual universe avatars within the predetermined proximity from the designated first object is greater than a first predetermined threshold and that the determined condition on the server computer is greater than a second predetermined threshold. The second object is associated with transmissions of information within the virtual universe.
摘要:
A system and method is provided for avoiding duplication of effort in drafting documents and, in particular, to a system and method for avoiding duplication of effort in preparing patent related submissions. The method is implemented on a computer infrastructure comprises storing disclosure information related to non-public proprietary innovation and receiving terms associated with an innovation. The method further comprises matching the terms with the stored disclosure information and providing an alert to a user that certain of the terms overlap with the stored disclosure information.
摘要:
Methods and arrangements of modifying spaces in virtual universes are discussed. Embodiments include transformations, code, state machines or other logic to receive data from a software agent in a virtual universe, directly or indirectly. The data may be based upon information automatically gathered from data stores outside the virtual universe, including account data and user profile data. The embodiment may also involve developing a user profile of the user in the virtual universe, based upon the data received from the software agent. An embodiment may also involve automatically gathering information from data stores external to the virtual universe. The information may include user account data and user profile information. The embodiment may also include aggregating data for generating the user profile in the virtual universe, based upon the information; and transmitting the data directly or indirectly to the virtual universe.
摘要:
A method implemented in a computer infrastructure having computer executable code tangibly embodied on a computer readable medium being operable to provide a shopping cart for a shopper, and segment items in the shopping cart based on the carbon footprint associated with each item. Additionally, the method may include displaying substitute or complementary items in the shopping cart for selection by the user to reduce total carbon values, and awarding carbon certificates.