Abstract: An integrated converter having three-phase power factor correction is provided. The integrated converter includes two PFC circuits. Two DC/DC converters are controlled and switched by the integrated converter in accordance with a three-phase AC power source so as to convert the AC power source into a DC power source. The use of the elements in the integrated converter is efficient.

Abstract: A converting device with PFC and dc/dc converting functions is provided. The converting device includes a power source providing a dc voltage, an inverter having an input terminal electrically connected to the power source and an output terminal, a transformer having a primary winding electrically connected to the output terminal of the inverter and a secondary winding, a rectifier/filter circuit having an input terminal electrically connected to the secondary winding of the transformer and an output terminal, and a PFC converter coupled to the output terminal of the rectifier/filter circuit and having an input terminal receiving an ac input voltage. The converting device converts the ac input voltage into an ac output voltage when the ac input voltage is normal, and converts the dc voltage to output the ac output voltage with the cooperation of the inverter, the transformer, the rectifier/filter circuit and the PFC converter when the ac input voltage is abnormal.

Abstract: A patent downloading system (1) for downloading patents (including published patent applications) from one or more patent web sites (2) includes a mirror web site (4) and an application server (3). The mirror web site includes a web server (40), which includes: a download period setting module (400) for setting download periods; a patent downloading module (402) for periodically downloading newly issued patents; and a patent index creating module (404) for creating a patent index for each newly downloaded patent. The application server includes a patent inquiry term receiving module (30) for receiving one or more patent inquiry terms; a patent information obtaining module (32) for obtaining information on patents to be downloaded; a patent existence determination module (34) for determining whether the patents exist in the mirror web site; and a downloading module (36) for downloading patents from the mirror web site.

Abstract: A system for processing and analyzing patent information includes a plurality of client computers (10), an application server (11), and a database (12). Each client computer includes an analysis type module (1010) for selecting an appropriate analysis type, a conditions-setting module (1011) for defining conditions of analysis, and an interactive user interface (100). A user selects an analysis type and defines conditions of analysis, which can include selecting aggregation and combination of patent information of different patent offices in various languages for analysis. The selected analysis type and defined conditions are transmitted to the application server, converted into a request in a predetermined format, and transmitted to the database. Patent information stored in the database is searched in accordance with the request, an analysis result is created, and the analysis result is transmitted to the user's client computer.