Hitachi, Ltd.

Nec Corporation

Hitachi Microcomputer Engineering, Ltd.

Takashi Shinoda

Masamichi Ishihara

Osamu Sakai

Kazumasa Yanagisawa

Yasushi Takahashi

Kanji Oishi

Tetsu Udagawa

Hiroshi Kawamoto

Masahiro Ogata

Kikuo Sakai

Yoshiaki Onishi, Deceased

Hirohisa Yamamoto

By Junko Onishi, Administratrix

Yoh Miyamoto

Atsushi Kikuta

Satoe Okayasu

Tetsuro Nishida

Nobuharu Miura

Junko Onishi, Administratrix

Akihiro Youda

Tsutomo Kato

Hiroshi Asakai

A method includes the step of transmitting by a server to a printer, recorded information image data generated from the recorded information or the information to be recorded on a recording medium; the step of receiving, from the printer which receives and stores the original image, an ID of a contactless IC chip, the ID read by the printer from the recording medium; the step of linking the ID to the recorded information image data and recording them in a database; the step of receiving, from a reader terminal, an ID as a confirmation information read by the reader terminal from a recording medium to be checked; and the step of making a search, according to the confirmation information, through the database for recorded information image data corresponding to the ID and transmitting the recorded information image data to an output terminal.

Method and system for checking an original recorded information

A browserof a mark user clientobtains Web pagefrom a mark provider serverand displays it. Then control is transferred to a mark reference programwhen a mark is detected, and the program extracts digital watermark information from a mark image. This digital watermark information comprises referred data, and an action definition that includes an action class and an index of the referred data as a parameter. The mark reference programrefers to this action definition, refers to required data through the index included in the action definition, and then performs processing defined by the action class.

Method of referring to digital watermark information embedded in a mark image

An intended image data structure is assumed to have a color information storing region and a pixel information storing region as its components. First, consider that the color information storing region within the image data structure is divided into a plurality of subregions, and a corresponding bit value is defined for each of the subregions. Next, an index number stored for each of pixels within the pixel information storing region is changed to an index number belonging to a subregion corresponding to a bit value of information to be embedded. In this way, one bit or more of information can be embedded for each pixel. Thus, a large amount of information can be embedded into a small-size image composed of simple shapes and having a small number of colors without degrading the image quality, and the information can be extracted from the image in which it has been embedded.

Data embedding apparatus, data extracting apparatus, and method therefor, and recording medium having such methods recorded thereon

A method includes the step of receiving by a server from a reader terminal, recorded information image data and an ID of a contactless IC chip mounted on the recording medium; the step of linking the ID of the IC chip to the recorded information image data and recording them in a database; the step of receiving, from a reader terminal, an ID of a contactless IC chip mounted on a recording media to be checked as confirmation information; and the step of making a search, according to the ID received as the confirmation information from the reader terminal, through the database for recorded information image data corresponding to the ID and transmitting the recorded information image data to an output terminal.

An exchange servicing development support system automatically replaces definition contents and creates generation codes to new specifications, even if interfacing is changed, by reading servicing definition result files stored in accordance with old specifications. By providing a unit for re-constructing service tree structure data in a format in accordance with information about compatibility description in a menu describing file, the service tree structure data is automatically created. Since information about compatibility is allocated to the menu describing a file stored in the storage device, each unit in the data processing device is adapted to be used for a general purpose. The description of replacement of various patterns can be made by descriptions of information about compatibility in the menu describing file.

Exchange servicing development support system with a function of automatic replacement of edited contents

A mark management server embeds a mark ID and so on in a specified mark image in response to a mark request from a WWW server, registers information related to a Web page corresponding to this mark ID in a mark management DB, and sends the mark embedded with the information to the server. The server attaches this mark to a created Web page, and registers the Web page in a Web page DB. A client terminal acquires a Web page from the server, reads information embedded in a mark, and issues a request for a search according to the mark to the server. The server references the DB, and sends information associated with a Web page corresponding to a specified mark ID to the terminal.

Information search method and system for registering and searching for associated multimedia data using embedded information

An ordinary read/write operation (normal operation) and a refresh operation are separated from one another and the number of read amplification circuits or, in other words, the number of sense amplifiers operating during the normal operation is made smaller than that during the refresh operation. Accordingly, a bit line charge/discharge current during the normal operation can be reduced.

Dynamic type semiconductor memory device

An ordinary read/write operation (normal operation) and a refresh operation are separated from one another and the number of read amplification circuits or in other words, the number of sense amplifiers operating during the normal operation is made smaller than that during the refresh operation. Accordingly, a bit line charge/discharge current during the normal operation can be reduced.

Semiconductor memory having both a refresh operation cycle and a normal

Semiconductor memory having a refresh operation cycle and operating at a

An optimal menu inquiry system includes a skeleton data generating means, a tree structure data constructing means, a menu display means, a control means, and a menu candidate determining means. The skeleton data generating means generates inquiries, from a rule description describing the context of the inquiries, as skeleton data by sequentially linking the inquiries, from the first inquiry to the subsequent inquiries, in the form of a tree structure. The tree structure data constructing means constructs and updates tree structure data by sequentially retracing the skeleton data from first data. The menu display means displays menu items corresponding to constructed/updated tree structure data. The control means controls the tree structure data constructing means to update the tree structure data when one of the menu items displayed by the menu display means is selected. The menu candidate determining means evaluates an evaluable expression in the skeleton data by referring to the updated structure data, and determines menu item candidates to be displayed by the menu display means.

Optimal menu inquiry system and system for editing structure data by

In a read only semiconductor memory, signal lines such as data lines are subjected to an undesired parasitic capacitance which restricts the signal changing rate along the lines. The parasitic capacitance which is driven by a memory cell will become increasingly higher as the memory capacity is increased. According to the present invention, a differential sense amplifier is used to amplify the data signals which are read out of the memory cell. At the same time, a dummy cell is used to generate a reference potential which is to be referred to by the differential sense amplifier. In particular, a dummy cell arrangement is provided wherein each dummy cell includes at least two series-connected semiconductor elements to provide a predetermined dummy cell conductance to establish a reference value. Another aspect of the invention lies in the use of column switches between a common data line and data lines of the memory arrays for coupling only one data line at a time through the column switch to the sense amplifier. In addition, a built-in error-correcting-code circuit is provided which operates in conjunction with a selecting circuit so that memory cells delivering a predetermined set of data are spaced apart from one another by at least predetermined distances to reduce the likelihood of errors from immediately adjacent memory cells.

Semiconductor memory

A microprocessor or the like supplies address signals for memory access according to its own operation speed irrespective of operation speed of a memory. A plurality of registers which take a plurality of address signals inputted in asynchronous state are installed in the memory. The memory access is performed according to sequence of the address signals taken in these plural registers.

Memory including address registers for increasing access speed to the

Semiconductor memory with an improved dummy cell arrangement and with a

A microprocessor or the like supplies a plurality of address signals for memory access according to its own operation speed irrespective of the operation speed of a memory. A plurality of registers receives and stores the plurality of address signals which are inputted in an asynchronous state. The memory access is performed according to a sequence signals of the address signals stored in the plurality of registers.

Memory including address registers

A semiconductor integrated circuit device which constitutes a dynamic RAM has an automatic refresh circuit that contains a refresh timer circuit. The refresh timer circuit has a program element such as a fuse element. The program element is programmed depending upon the data holding characteristics of the dynamic memory cells. Therefore, the refresh period is changed depending upon the characteristics of the dynamic memory cells. According to this construction, the refresh period changes and, as a result, any undesired refresh operation is prevented from being executed, making it possible to reduce the amount of electric power consumed by the circuit device.

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Hamuramachi, Japan

Takashi Shinoda