★★★ ＜知的財産翻訳検定【第４回<和文英訳>試験】＞答案用紙 ★★★
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科 目： 電気・電子工学
氏 名： 平井 通宏==========================================================================＜選択問題解答＞[問 1]
1. A network storage access terminal for establishing a connection forstorage between an external device and a storage device located ina network, comprising:an interface unit communicating with the external device;an authentication unit carrying out authentication throughcommunication with an authentication server located in the network;a wireless connection managing unit receiving, from a processing
server located in the network, connection information for the storage
device, establishing a connection path to and from the storage
device using the connection information, sending to the external
device information on the storage device including at least the nameand access right of a folder corresponding to a storage area on thestorage device, and thereby having the external device confirm theidentity of the storage device; anda data processing and conversion unit which, upon receiving data fromthe external device, processes and converts the data and sends itto the storage device with which the connection for storage isestablished.

[問 2]The optical frequency shifter, capable of shifting the frequency (orwavelength) of incoming light by a predetermined amount of offset, is
one of the most important devices used in the wide-ranging fields of
opto-electronics and quantum electronics, as typically found in
optical communication systems, optical measuring instruments, andspectroscopic instruments. For use in optical frequency shifters,a variety of methods for shifting optical frequencies have beenproposed.
For example, an optical frequency shifter available on the market
today uses the acoustooptical effect, namely the diffraction of lightcaused by an acoustic wave (compressional wave) traveling inside acrystal. Unfortunately, the upper limit of the operating frequencyof optical frequency shifters based on this principle is limited toas low as several hundred megahertzs. This limit comes from two
fundamental problems intrinsic to the principle: first, thepropagation loss of an acoustic wave traveling through a crystal
increases dramatically at high frequencies, and second, atfrequencies higher than approximately 1 GHz, no diffraction occurs
because the wavelengths of acoustic waves become shorter than thoseof light. It is therefore impossible to increase the amount ofoffset in light frequency beyond a certain limit using frequency
shifters based on such a principle.

[問 3]In Figure 1, a local oscillation circuit 10 comprises an LC
resonance circuit composed of a coil L and a capacitor C1, anda transistor TR that amplifies a resonance current generated
by the LC resonance circuit. One end of the coil L isconnected to the ground via a diode D4 and also to a resistor
R2 through which a tuning voltage VT is applied. The other endof the coil L is connected to the ground via a diode D3 and aresistor R1. The end of the diode D3 that is directly connectedto the resistor R1 is connected also to one end of the capacitor
C1. The other end of the capacitor C1 is connected to the baseof the transistor TR and also to the ground via a resistor R5.
The collector of the transistor TR is connected to a constantvoltage source +B via a resistor R3 and also connected to its
base via a resistor R4. The emitter of the transistor TR isconnected to the ground via a capacitor C2 and also via aresistor R6.