★★★ ＜第36回知的財産翻訳検定試験【第19回和文英訳】＞ ★★★
≪１級課題 -電気・電子工学-≫【問 1】
In recent years, the development of additive 3D printers has been
progressing both domestically and internationally in the field of construction,
as a building method for depositing a material layer-by-layer to form alaminated object (structure), using 3D printing technology. The material foruse in the additive 3D printers is basically a cementitious material, andmortar kneaded by a mixer is pumped and fed to a three-dimensionalmodeling apparatus. Work using such an additive 3D printer is capable ofstructure formation by additive manufacturing without the need forformwork, and is therefore expected to be much superior to conventional
concrete work in terms of labor savings, design flexibility, safety, and thelike.
[0003]
To put such a working approach into practical use in the future, it isnecessary to consider not only the development, improvement, etc. of 3D
printers, but also the pumpability of a material, the self-supporting
performance of the material immediately after being extruded through anozzle in forming a laminated object (structure), the surface properties of thelaminated object after curing, and the like.
[0004]
Forming a laminated object (structure) with high working accuracy
mainly requires the development of materials with improved self-supporting
performance and the development of machines, in terms of, for example, thepositional accuracy, speed, and material extrusion rate of a nozzle. It also
requires structural performance for allowing the resultant structure(structural form) to exhibit adequate strength against various externalforces.

【問 2】[0037]The high-frequency inverter 12 of the power transmitter 1 and thehigh-frequency rectifier circuit 22 of the power receiver 2 each include four

reverse-conducting power semiconductor switches (Q1 to Q4), such as
MOSFETs or IGBTs, which constitute the full bridge circuit. Specifically, as
an example, the high-frequency inverter 12 of the power transmitter 1
includes a pair of inverter legs. One of the inverter legs includes thehigh-side switching element (Q1) and the low-side switching element (Q2)that are connected in series, and antiparallel diodes that are connected inparallel with the switching elements in one-to-one correspondence. The
other inverter leg includes the high-side switching element (Q3) and thelow-side switching element (Q4) that are connected in series, and antiparallel
diodes that are connected in parallel with the switching elements in
one-to-one correspondence. The high-frequency inverter 12 of the powertransmitter 1 adopts phase shift and pulse width modulation that enables
adjustment of the high-frequency output, only by phase control on thedriving timing of the switching elements (Q1 to Q4).
[0038]In the power receiver 2, the voltage smoothing capacitor 24 connectedin parallel with the battery 21 smooths signals by reducing ripples caused
after the rectification by the high-frequency rectifier circuit 22, so as to bring
the signals closer to direct current.
[0039]The power transmitting-side resonance circuit 13 includes a reactor(L1) and a variable capacitor (C1). The power receiving-side resonancecircuit 23 includes a reactor (L2) and a variable capacitor (C2). An
ultrasonic transducer including a piezoelectric element, such as a BLT,
serves as a capacitor-type load (C-type load); therefore, each resonancecircuit may be practicable using a combination of the ultrasonic transducer
with only a reactor.
[0040]As described above, each of the BLTs applies, in advance,
compressive stress with the bolt, and therefore enables considerably large
stress amplitude. Each of the BLTs can thus be used as a powerfulultrasonic transducer. In addition, the BLTs exhibit high mechanicalstrength and high electro-acoustic conversion efficiency. The BLTs are
therefore suitable for undersea contactless ultrasonic power transmission.
The BLTs have a specific mechanical resonance frequency and enableconsiderably large stress amplitude in such a manner that the BLTs aredriven at the resonance frequency or a frequency around the resonancefrequency.
翻訳者コメント【００３７】
３行目の「（Ｑ１～Ｑ４）」は「（Ｑ１～Ｑ４、Ｑ５～Ｑ８）」のほうがよろしいのではないかと存じます。
原文の通りに訳しております。
【００３８】
１行目の「電圧平滑用コンデンサ２４」は「電圧平滑用コンデンサ２５」ではないかと存じます。
原文の通りに訳しております。
なお、参考図面中、【図１】に記載された符号３、４は、それぞれ、１４、２４ではないかと存じます。

【問 3】
1.
A position estimation system for estimating a position of a radio wavereceiving device in a predetermined space, based on a received signal
strength when the radio wave receiving device receives, in the space, radio
waves transmitted from three or more radio wave transmitting devices,the position estimation system comprising:acquisition means for acquiring information about the received
signal strength upon reception of the radio waves from the three or moreradio wave transmitting devices;
generation means for generating, based on the information
corresponding to at least three radio wave transmitting devices among thethree or more radio wave transmitting devices, a first vector including as anelement a distance between each of the at least three radio wave
transmitting devices and the radio wave receiving device; andestimation means for estimating a position of the radio wave
receiving device, based on a similarity between the first vector and a second
vector corresponding to a predetermined position in the space, the second
vector including as an element a distance between each of the at least three
radio wave transmitting devices and the predetermined position.

2.

The position estimation system according to claim 1, wherein
the second vector is generated for each of a plurality of positions on apredetermined planar area in the space, andthe estimation means estimates the position of the radio wave
receiving device, based on a similarity between the first vector and thesecond vector corresponding to each of the plurality of positions.
3.

The position estimation system according to claim 1 or 2, wherein
the second vector is generated for each of a plurality of sets ofdifferent combinations of at least three radio wave transmitting devices
among the three or more radio wave transmitting devices,
the generation means generates the first vector for each of theplurality of sets, andthe estimation means estimates the position of the radio wave
receiving device, based on a similarity between the first vector and thesecond vector for each of the plurality of sets.