受験番号：26IPE004

問1
What is claimed is:1.

An energy dispersive X-ray detection apparatus for irradiating a sample with

an electron beam or an X-ray, detecting a characteristic X-ray generated from a surfaceof the sample, and performing elemental analysis, the energy dispersive X-ray detection
apparatus comprising:an element holder housing a semiconductor X-ray detection element, theelement holder including a cylindrical female screw; anda finger body housing a substrate including a first-stage field-effect transistor(FET) for amplifying a signal from the semiconductor X-ray detection element, thefinger body including a cooling mechanism and a male screw,
wherein the female screw and the male screw fasten the element holder andthe finger body to fix the semiconductor X-ray detection element.
2.

The energy dispersive X-ray detection apparatus according to claim 1, wherein

the element holder housing the semiconductor X-ray detection element is made of ametal material having a large thermal expansion coefficient, whereas the finger bodyhousing the substrate including the first-stage FET is made of a metal material having
a thermal expansion coefficient smaller than the thermal expansion coefficient of theelement holder.
3.

The energy dispersive X-ray detection apparatus according to claim 1, further

comprising a slit-like opening in the element holder, the opening being configured topass a high-voltage wire for supplying a voltage to an electrode of the semiconductor
X-ray detection element through the element holder.
問２
Examples of conventional typical image compression methods include the Joint
Photographic Experts Group (JPEG) method standardized by the InternationalStandards Organization (ISO). This is known to use discrete cosine transform (DCT)
and to provide good encoded images and decoded images when a relatively large numberof coding bits is allocated. When the number of coding bits is reduced to a certain
extent, however, block distortion becomes conspicuous and degradation becomessubjectively noticeable.

In recent years, meanwhile, studies have been actively conducted about amethod of dividing an image into a plurality of bands by a filter called a filter bankobtained by combining a high-pass filter and a low-pass filter and performing coding foreach band.

Among these studies, wavelet transform coding, which has nodisadvantage that high compression causes conspicuous block distortion like DCT, isregarded as promising alternative technology to DCT.
For example, JPEG 2000, which has been internationally standardized in
January 2001, has employed a method obtained by combining high-efficiency entropy
coding with this wavelet transform, achieving significant improvement in coding
efficiency over JPEG.
問3
More particularly, the electronic paper device 26 is a conventionally known
self-writing device that can display an image of predetermined information on an imagedisplay unit with a voltage applied, and can hold the predetermined information in a
no-power supply state.

When the microcomputer 23 applies no voltage through adriver to each pixel electrode constituting a matrix in the image display unit, negatively
charged white particles accumulate on the back side of the image display unit, whereas
positively charged black particles accumulate on the surface side. Therefore, when
visually observed from the surface side, the image display unit is colored in black.
Then, when the driver operates based on electronic data output from the microcomputer
23 and reverses the polarity of the pixel electrodes of a main part of the matrix
according to the information to be displayed as an image, a positional relationshipbetween the white particles and the black particles is appropriately switched, and theinformation image of contrast between the white particles and the black particles isdisplayed on the image display unit. Also, even in a no-power supply state in which novoltage is applied, via the driver, to each pixel electrode constituting the matrix in theimage display unit, the electronic paper device 26 can hold the image display state as itis.
コメント
問 1 は図面がないので装置の構成がよく分かりませんが、請求項中の「収納する」は「収納するように構成される」ではなく「収納されている」と解釈して housing と訳出いたしました。装置の構成が前者の場合なら configured to house を用います。