Abstract: There is provided an image forming apparatus including: a sensitivity calculating unit; a first correction amount calculating unit that calculates, for each of the different density values of the color material, correction amounts for correcting density nonuniformity with respect to each recording element in regard to each of the color signals on the basis of reading data; and a second correction amount calculating unit that calculates, for each of the different density values of the color material, correction amounts of the density values of the color material on the basis of the correction amounts of the color signals for each of the different density values of the color material, with respect to the recording elements, and on the basis of the sensitivities of each of the color signals in regard to each recording element.

Abstract: The present invention provides a method and apparatus for generating index as well as a search method and a search apparatus. Index entry comprises at least a search item identifier corresponding to a search item, one or a plurality of index items generated from one or plural pieces of search information, and an accumulator for the search information. The accumulator is generated by accumulating the search information, or accumulating ciphertext of information containing the search information, or accumulating data mapped from information containing the search information. At the time of searching, the index items and the accumulator are provided to a searcher. The searcher extracts search information from the index items and checks whether the extracted search information is complete by using the accumulator. In one embodiment, the accumulator is incorporated in an encrypted inverted index.

Abstract: A control system for optimizing a chemical loop system includes one or more sensors for measuring one or more parameters in a chemical loop. The sensors are disposed on or in a conduit positioned in the chemical loop. The sensors generate one or more data signals representative of an amount of solids in the conduit. The control system includes a data acquisition system in communication with the sensors and a controller in communication with the data acquisition system. The data acquisition system receives the data signals and the controller generates the control signals. The controller is in communication with one or more valves positioned in the chemical loop. The valves are configured to regulate a flow of the solids through the chemical loop.

Abstract: There is provided an image forming apparatus including: a sensitivity calculating unit; a first correction amount calculating unit that calculates, for each of the different density values of the color material, correction amounts for correcting density nonuniformity with respect to each recording element in regard to each of the color signals on the basis of reading data; and a second correction amount calculating unit that calculates, for each of the different density values of the color material, correction amounts of the density values of the color material on the basis of the correction amounts of the color signals for each of the different density values of the color material, with respect to the recording elements, and on the basis of the sensitivities of each of the color signals in regard to each recording element.

Abstract: The present invention provides a method and apparatus for ciphertext indexing and searching. Indices of multiple levels are created for the encrypted files. Each item in the primary index includes a primary index item identifier and the ciphertext of the primary indexing information of the related file. The primary indexing information each includes an identifier(s) of the related secondary index item identifier(s) and the corresponding decryption information. Each item in the secondary index includes a secondary index item identifier and the ciphertext of the secondary indexing information. Information necessary for obtaining a file is included in the corresponding secondary indexing information. With the decryption information of the secondary indexing information in the decrypted primary indexing information, the ciphertext of the related secondary indexing information is decrypted so as to obtain information such as the decryption key of the file.

Abstract: The present invention provides a method and apparatus for generating index as well as a search method and a search apparatus. Index entry comprises at least a search item identifier corresponding to a search item, one or a plurality of index items generated from one or plural pieces of search information, and an accumulator for the search information. The accumulator is generated by accumulating the search information, or accumulating ciphertext of information containing the search information, or accumulating data mapped from information containing the search information. At the time of searching, the index items and the accumulator are provided to a searcher. The searcher extracts search information from the index items and checks whether the extracted search information is complete by using the accumulator. In one embodiment, the accumulator is incorporated in an encrypted inverted index.

Abstract: The present invention provides a method, apparatus and system for fast searchable encryption. The data owner encrypts files and stores the ciphertext to the server. The data owner generates an encrypted index according to each keyword of the files, and stores the encrypted index to the server. The index is composed of keyword item sets each being identified by a keyword item set locator and containing at least one or more file locators of the files associated with the corresponding keyword. Each file locator contains ciphertext of information for retrieval of an encrypted file and only with the correct file locator decryption key can the ciphertext be decrypted. Data owner issues a keyword item set locator as well as file locator decryption key to a searcher to enable the searcher to search on the encrypted index and retrieve files related to a certain keyword.

Abstract: A technique for allowing a non-SIP user to call a SIP user includes dialing an established service number that indicates a desire to place a call to a SIP user. The SIP URI of the intended call recipient is included in a call setup protocol message associated with dialing the service number. A non-SIP network recognizes the call to the service number and the SIP URI from the UUI parameter of the call setup message. The call is then routed to a gateway for interfacing between the non-SIP network and the appropriate SIP network where the SIP URI is extracted from the message received by the gateway and used to generate an SIP INVITE message for establishing the call with the intended SIP user.