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  Method and apparatus for routing data in an automatic identification systemUSPTO Application #: 20070288515Title: Method and apparatus for routing data in an automatic identification system Abstract: A system for routing data in an automatic identification system includes an event management system (EMS), a real-time in-memory data structure (RIED) coupled to the EMS, the RIED for storing event information gathered by the EMS and a task management system (TMS) for ensuring that the RIED is updated by one transaction at a time. With this particular arrangement, a system for managing a large number of real-time events is provided. In one embodiment, the control system can be provided in a distributed hierarchical arrangement. The EMS of each control system can include filters which limit the amount of information provided to the next level in the hierarchy. In this manner the hierarchical control system network acts as a high volume data collector and processor. In some embodiments a level of the hierarchy can be removed spatially and/or temporally from an adjacent level in the hierarchy. This approach results in an intelligent network and also lends itself to scalability. By including optional filters and queues in the EMS, the EMS can be configured as desired. (end of abstract) Agent: Dann, Dorfman, Herrell & Skillman - Philadelphia, PA, US Inventors: Sanjay Sarma, Daniel W. Engels, Lamiprasad Putta, Sridhar Ramachandran, James L. Waldrop USPTO Applicaton #: 20070288515 - Class: 707104100 (USPTO) Related Patent Categories: Data Processing: Database And File Management Or Data Structures, Database Schema Or Data Structure, Application Of Database Or Data Structure (e.g., Distributed, Multimedia, Image) The Patent Description & Claims data below is from USPTO Patent Application 20070288515. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of provisional application no. 60/444,090 filed Jan. 31, 2003, the disclosure of which is hereby incorporated by reference. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] Not Applicable. FIELD OF THE INVENTION [0003] The present invention relates generally to a network service and related apparatus and more particularly to a service for identifying objects based upon a unique code associated with that object. BACKGROUND OF THE INVENTION [0004] As is known in the art, the ability to uniquely identify items, devices, and services (collectively called objects) is essential for many applications including but not limited to security access control, supply chain management and communications. The inability to uniquely identify every object of interest renders many of these applications less effective than is generally desired. One component for unique identification is the association of a unique identifier with the object. The identifier may take many forms, such as a given name or number (e.g., a social security number) or a characteristic of the object (e.g., a fingerprint). Once objects are uniquely identified, it would be desirable to locate data about the object or service using the unique identifier. [0005] In a world in which every object has an associated electronic product code (EPC) which may be attached or associate to the object with a Radio Frequency Identification (RFID) tag for example, EPC readers (e.g., RFID tag readers) will be picking up a continual stream of EPCs. It has, therefore, been recognized that managing and moving all of this data is a difficult problem and one that must be addressed in an RF ID network. One embodiment of a RFID system is described in co-pending U.S. patent application No. 09/379,187 filed on Aug. 20, 1999 which claims the benefit of application No. 60/097,254 filed Aug. 20, 1998. SUMMARY OF THE INVENTION [0006] In accordance with the present invention, a system for routing data in an automatic identification system includes an event management system (EMS), a real-time in-memory data structure (RIED) coupled to the EMS, the RIED for storing event information gathered by the EMS and a task management system (TMS) for ensuring that the RIED is updated by one transaction at a time. With this particular arrangement, a system for managing a large number of real-time events is provided. In one embodiment, the control system can be provided in a distributed hierarchical arrangement. The EMS of each control system can include filters which limit the amount of information provided to the next level in the hierarchy. In this manner the hierarchical control system network acts as a high volume data collector and processor. In some embodiments a level of the hierarchy can be removed spatially and/or temporally from an adjacent level in the hierarchy. This approach results in an intelligent network and also lends itself to scalability. By including optional filters and queues in the EMS, the EMS can be configured as desired. BRIEF DESCRIPTION OF THE DRAWINGS [0007] The invention will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which: [0008] FIG. 1 is a block diagram of an automatic identification (control) system; [0009] FIG. 2 is a block diagram of hierarchical control system; [0010] FIG. 3 is a block diagram of an event management system (EMS); [0011] FIG. 4 is a series of tables which illustrate a synchronization operation; [0012] FIG. 5 is a persistent datum Hash table; [0013] FIG. 6 is a persistent set Hash table; [0014] FIG. 7 is a table which illustrates a sample persistent datum; [0015] FIG. 8 is a series of tables which illustrate an update operation; and [0016] FIG. 9 is a series of tables which illustrate a persistent set along with the results of queries in various snapshots. DETAILED DESCRIPTION OF THE INVENTION [0017] Before describing the processing to be performed by an automatic identification (control) system to manage and move data, it should be appreciated that, in an effort to promote clarity, reference is sometimes made herein to certain exemplary embodiments and applications--e.g., supply chain management applications. Such reference should not be taken as limiting the invention to such embodiments and applications. Rather, it should be understood that such examples are intended only as an aid to describing the invention and that the present invention finds use in a wide variety of different applications including but not limited to communications networks, power networks, chemical supply networks, supply chain networks, transportation systems and security. Continue reading... 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