Hitachi, Ltd.

Casio Hitachi Mobile Communications Co., Ltd.

Shinya Yamamoto

Tadataka Matsubayashi

Yuichi Ogawa

Michio Iijima

Natsuko Sugaya

Yasuhiko Inaba

Takaaki Yayoi

Masaki Yotsutani

Yuuki Watanabe

Ken Ofuchi

Masaki Kuroiwa

Masao Mimura

Masayuki Hamakawa

Tsuyoshi Sudou

A camera has an infinity end stopper that stops a lens holder to a position which sets a best focal length at infinity, and a macro-side stopper that stops the lens holder to a position at which the best focal length becomes a predetermined length. In normal mode, the camera abuts the lens holder on the infinity end stopper and then moves the lens holder toward the macro-side stopper to perform auto focus. In macro mode, the camera abuts the lens holder on the macro-side stopper and then moves the lens holder toward the infinity end stopper to perform auto focus. This can suppress a variation in the position of the camera after lens movement.

Imaging apparatus and lens movement control method

In registering operation of a document to be searched for, a document identifier management table for managing a range of a document identifier stored for each page and a page identifier of the page is created, and an individual-search-server's search range management table for managing the range of the document identifier in charge of each search server is created. In searching operation of each search server of the document to be searched for, the individual-search-server's search range management table is referred to acquire a range of the allocated document identifier. For each index key forming a query term specified as a query condition, the document identifier management table is referred to to acquire the page identifier storing the document identifier of the allocated range. The searching operation is carried out by referring to a page shown by the acquired page identifier.

System and method to enable parallel text search using in-charge index ranges

Information that individual elements (characteristic character strings) indicative of characteristics of a registered document appear in the registered document is stored in advance. When calculating similarity of the registered document, a query designated by a searcher is analyzed. The query is represented by a characteristic vector having the individual elements which take the relation between a plurality of words into consideration. Pieces of appearance information of the individual words contained in the query are counted. The counted appearance information is compared with a searching index to calculate similarity between documents.

Method and apparatus for calculating similarity among documents

A portable telephone apparatus with camera is disclosed, in which the interference between the harmonic component generated from the camera and the receiving frequency band for radio communication can be reduced. The apparatus comprises a radio communication circuit for conducting the radio communication with an external device, a clock signal generating circuit capable of controlling the output clock signal frequency, a camera operated with the output clock signal as an operating clock signal and a control circuit. The control circuit, based on the receiving frequency band information acquired from the radio communication circuit, controls the clock signal of the clock signal generating circuit in such a manner that the harmonic components of the clock signal frequency are not superposed on the receiving frequency band for conducting the radio communication.

Portable telephone apparatus with camera

A method for retrieving information from a computer system including a user terminal and a storage area, includes retrieving first information from the storage area using a first search query, the first search query having a first element and a first weight that is associated with the first element. The first search query has been formulated to retrieve target information. The first information includes at least a first data block. Second information is retrieved from the storage area using a second search query. The second search query has the first element, and a second weight that is associated with the first element. The second search query is derived from a relevance feedback provided on the first data block of the first information. An end-search criterion is provided to the user terminal. The end-search criterion provides information as to whether or not to end a first retrieval procedure for the target information. The first retrieval procedure being associated with a search query set, the search query set including a plurality of search queries, each having the first element.

Similarity-based search method by relevance feedback

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Kobe, Japan

Shinya Yamamoto