Abstract:
A registration signal embedding method of embedding registration signals adaptively in accordance with image signals. The frequency property of image data is determined, and either a first registration signal or a second registration signal is selected in accordance with the frequency property, and is added to image data. The registration embedded in this way has the advantage of increased resistance and easy detection.
Abstract:
The invention efficiently controls the method for embedding digital watermark information into digital information or detecting such digital watermark information. Also in case the digital information has components of different kinds, the invention enables individual management of the digital watermark information and information indicating the embedding method therefor. In a configuration for attaining these objects, there are provided input means for inputting the digital information composed of signal components of plural kinds, and control means for controlling the method for embedding the digital watermark information in the signal component of a first kind contained in the signal components of plural kinds, based on the signal component of a second kind contained in the signal components of plural kinds.
Abstract:
A metal sintered part; the subject of this invention is produced by the following example processes in order to offer the metal sintered part, which has a high degree of hardness and a superior wear resistance, and, in order to offer the uncomplicated production method. Process 1A: To produce a green body, which is manufactured from a metal powder and a binding material, by the metal injection molding (MIM) method. Process 2A: To conduct the de-binding treatment to the green body. Process 3A: To sinter the de-binding body and obtain the metal sintered part. The metal powder for the production is a self-fluxing alloy, such as a nickel based self-fluxing alloy. The surface Vickers hardness Hv of this product is more than value 500.
Abstract:
To include a plurality of core chips to which different pieces of chip information from each other are given in advance. A first refresh command is divided into a plurality of second refresh commands having different timings from each other, and a refresh operation is performed on a core chip for which a count value of the second refresh commands and at least a portion of the chip information match each other. With this configuration, even when the second refresh command is commonly supplied to a plurality of core chips, it is possible to shift a timing for the refresh operation in each of the core chips. Therefore, it is possible to reduce a peak current at the time of the refresh operation.
Abstract:
Such a device is disclosed that includes a first chip outputting a bank address signal and an active signal, and a plurality of second chips stacked on the first chip. Each of the second chips includes a plurality of memory banks each selected based on the bank address signal. Selected one or ones of the memory banks is brought into an active state in response to the active signal. Each of the second chips activates a local bank active signal when at least one of the memory banks included therein is in the active state. The first chip activates a bank active signal when at least one of the local bank active signals is activated.
Abstract:
In one embodiment, a semiconductor memory device receives a refresh command and address information, and supplies a refresh control signal and the address information in common to core chips. Each of the core chips includes a layer-address comparison circuit that determines whether the address information assigns an own core chip, and a refresh control circuit that refreshes an own memory cell based on the refresh control signal when the address information assigns the own core chip. With this arrangement, a memory capacity of a chip that is refreshed by a refresh command for one time is reduced, and therefore a shortest issuing interval of a refresh command can be shortened.
Abstract:
A method for manufacturing a dental implant including an abutment is manufactured through the following steps. A titanium molded body production step molds a titanium molded body composition to obtain a titanium molded body having one of male and female thread portions. A ceramic molded body production step molds a ceramic molded body composition to obtain a ceramic molded body having the other thread portion which makes thread coupling with the one thread portion. An assembling step assembles the titanium molded body and the ceramic molded body together so that the one thread portion makes thread coupling with the other thread portion, to obtain an assembled body. A degreasing step degreases the assembled body. A sintering step sinters the degreased assembled body.
Abstract:
A dental implant capable of reliably preventing elution of metal when the dental implant is applied within an oral cavity and capable of reliably preventing occurrence of mismatching (bumpy occlusion or the like) when the dental implant is fixed in place. The abutment is manufactured by molding a ceramic molded body composition to obtain a ceramic molded body, assembling a titanium member and the ceramic molded body together to obtain an assembled body, degreasing the assembled body so that the ceramic molded body is transformed into a ceramic degreased body, and sintering the assembled body to transform the ceramic degreased body into a ceramic member so that the ceramic member is firmly fixed to the titanium member.
Abstract:
The invention enables a verifier to easily confirm that the image data was captured in the multiple exposure mode, and also to easily confirm which area in the image captured in the multiple exposure mode was greatly affected by multiple exposure. An image generating unit generates exposure image data pieces by exposing an image sensor a plurality of times. An image composition unit combines exposure image data pieces to generate a single piece of composite image data. A reference image generating unit generates reference image data composed of data pieces for distinguishing pixel positions at which the exposure amount exceeds a threshold from the other pixel positions. A verification data generating unit generates verification data for determining whether alteration has been made from the composite image data and the reference image data to output a single file.
Abstract:
An information processing apparatus inputs image data including a first pixel group, a second pixel group generated by interpolating the first pixel group and verification data of the first pixel group, verifies whether the first pixel group has been altered using the first pixel group and the verification data, verifies whether the second pixel group has been altered by determining whether the second pixel group and the first pixel group are in a predetermined relationship, and determines whether the image data has been altered based on results of the verification as to whether the first pixel group has been altered and the verification as to whether the second pixel group has been altered.