baber/WOPTO huggingface dataset:
Patent JP-2020086698-A (JP)
Title: Image processing device, image processing system, and image processing program
Inventor: FERNANDO JAVIER WONG KWAI BEN
IPC: G16H30/40
Filed: 2018-11-20
Abstract: To provide an image processing device for generating a diagnostic result image obtained by extracting an abnormal part from a medical image.SOLUTION: An image processing device is configured to: generate an abnormal part extraction image obtained by extracting as an abnormal part, from an inputted object medical image, a different part from a medical image obtained by photographing a healthy person; generate a peculiar part estimation image obtained by estimating, as a peculiar part, a different part which is included in the object medical image and is peculiar to the image that is not medically abnormal while being a different part from a medical image obtained by photographing a healthy person; calculate a difference between the abnormal part extraction image generated by abnormal part extraction image generation means and the peculiar part estimation image generated by peculiar part estimation image generation means; and generate a diagnostic result image obtained by removing the peculiar part from the abnormal part extraction image.SELECTED DRAWING: Figure 9
Patent JP-2020076722-A (JP)
Title: Wi-Fi ANALOG TIMEPIECE
Inventor: KOMATSU MASA
IPC: G04C9/00
Filed: 2018-11-06
Abstract: To provide an analog timepiece that can use Wi-Fi communication (wireless communication) to synchronize time information received on the Internet with analog hands.SOLUTION: An analog timepiece 1 wirelessly communicates with a Wi-Fi router 2 by Wi-Fi to acquire time information from an NTP server 5 on the Internet through a modem 4. The acquired time information is converted inside the timepiece into a drive signal for the analog timepiece, and the hour, minute, and second hands are rotated at high speeds to synchronize with the time information, thereby correcting a deviation in present time.SELECTED DRAWING: Figure 2
Patent JP-2020085609-A (JP)
Title: Fish body size calculation device
Inventor: FUJINUMA HIROKAZU
IPC: G06T7/593
Filed: 2018-11-22
Abstract: To provide a fish body size calculation device capable of accurately calculating the actual size of a migrating fish.SOLUTION: A fish body size calculation device includes: an imaging device for imaging a migrating fish underwater; and an analyzing device for performing the calculation processing for calculating the actual size of the fish. The analyzing device recognizes the fish body shape (lateral state) of the migrating fish on the basis of the stereo video imaged by a left camera 3L and right camera 3R as the imaging devices, and stores a left image P1 and right image P2 including the fish body shape. Then, analyzing device produces a rectangular frame including the fish body of the migrating fish on the basis of the left image P1 and right image P2, and calculates the barycentric coordinates G1 and G2 of the fish. Then, the actual size of the fish from the parallax of the barycentric coordinate G1 and G2 and base line distance b of the imaging device.SELECTED DRAWING: Figure 7
Patent JP-2020084262-A (JP)
Title: Method for manufacturing chromium plated component
Inventor: TERADO SAYUKO
IPC: C25D5/26
Filed: 2018-11-26
Abstract: To provide a technology that enables stable formation of chromium plating film with high adhesion to steel base material by trivalent chromium plating.SOLUTION: In the method for manufacturing a chromium-plated component, a passivation film is formed on a steel base material by anode treatment in an electrolytic solution whose temperature is controlled by a cooling device. By cathode treatment in a trivalent chromium plating solution, the passivation film is removed from the steel base material and after which a chromium plating film is formed on the steel base material. For example, in the anode treatment, the temperature of the electrolytic solution is controlled to 25°C or lower.SELECTED DRAWING: Figure 4B
Patent JP-2019137913-A (JP)
Title: Copper alloy
Inventor: HIRAI YOSHIMASA
IPC: C22C9/06
Filed: 2018-12-03
Abstract: To provide a copper alloy having high strength and having excellent machinability and slidability.SOLUTION: A copper alloy contains nickel of 4.0-20.0 mass%, tin of 4.0-20.0 mass%, and sulfur of 0.1-1.0 mass%, with the balance being copper and inevitable impurities.SELECTED DRAWING: None
Patent JP-2020091101-A (JP)
Title: Switching device and timepiece
Inventor: HOSOBUCHI HIROYUKI
IPC: G04G21/00
Filed: 2018-12-03
Abstract: To provide a switching device that is able to prevent accidental fall-out of an operation member and to provide a timepiece having the switching device.SOLUTION: A switching device comprises: an operation member inserted into a shaft insertion hole of a base member 4 so as to be slidable or rotatable and having an annular engagement groove 13 in an outer peripheral surface thereof; a fall-out prevention member 14 with an engagement portion 15 disposed in and across the engagement groove 13 of this operation member and moved as the operation member slides; and a separation regulating portion 24 designed such that, when the operation member is pulled out toward an outside of the base member 4, a leading end of the engagement portion 15 projecting across an inside of the engagement groove 13 enters to prevent separation of the engagement portion 15 from the inside of the engagement groove 13. Therefore, when the operation member is pulled out, separation of the engagement portion 15 from the inside of the engagement groove 13 can be blocked by a separation regulating portion 24. Thus, because separation of the engagement portion 15 from the engagement groove 13 is blocked, accidental fall-out of the operation member can be prevented.SELECTED DRAWING: Figure 4
Patent JP-2020091432-A (JP)
Title: Switch type optical antenna and optical scanning device
Inventor: SHIMOGAKI TETSUYA
IPC: G02F1/01
Filed: 2018-12-06
Abstract: To provide a switch type optical antenna and optical scanning device that enable an achievement of maximization of light projection force.SOLUTION: A switch type optical antenna includes: refractive index modulation units 18A and 18B that cause a refractive index of at least one of ring resonators 16A and 16B to be changed; a first optical detector PD_0 that detects light taken out around an input end of a first waveguide 20; second optical detectors PD_A and PD_B that detect light taken out around input ends of second waveguides 22A and 22B; and a light projection signal processing unit 28 that controls the change in refractive index of the ring resonators 16A and 16B by the refractive index modulation units 18A and 18B so as to cause output light from diffraction gratings 12A and 12B to be turned on and off, and adjusts the change in refractive index of the ring resonators 16A and 16B by the refractive index modulation units 18A and 18B so that an absolute value of a differential between light detected by the first optical detector PD_0 and second optical detectors PD_A and PD_B is minimum.SELECTED DRAWING: Figure 3
Patent JP-2020094631-A (JP)
Title: Fixing structure between rotary shaft and rotary member
Inventor: KITAJIMA YASUO
IPC: F16D1/06
Filed: 2018-12-12
Abstract: To fix a rotary shaft to a rotary plate without using press-fitting.SOLUTION: A fixing structure between a rotary plate 20 and a rotary shaft 10 includes: a rotation stop plate 30 (a rotation restriction member) which is formed with a hole 31b, to which the rotary shaft 10 is fixed, and in which an outer peripheral edge 31a around an axis C of the rotary shaft 10 is formed in an irregular shape; a rotary plate 20 having a hole 21c of an inner peripheral edge which engages with the outer peripheral edge 31a of the rotation stop plate 30 and has an irregular shape; and two rotation plate pressing plates 41, 42 which sandwich the rotary plate 20 from both sides as seen in an axis C direction of the rotary shaft 10 and are fixed to the rotary shaft 10.SELECTED DRAWING: Figure 2
Patent JP-2020092876-A (JP)
Title: Absorber and absorbent article
Inventor: BUSHIMATA KOHEI
IPC: A61F13/53
Filed: 2018-12-13
Abstract: To provide an absorber which effectively suppresses liquid leakage and does not increase thickness after liquid absorption, and an absorbent article equipped with the same.SOLUTION: An absorber 1 includes: a carrying sheet 2; water absorptive polymer particles 3 carried on one surface of the carrying sheet 2; and a bulky layer 4 bulkier than the carrying sheet 2. The carrying sheet 2 is layered so that the one surface faces the bulky layer 4. The bulky layer 4 includes a thermal fusion fiber 51 and a highly absorptive fiber 53. The highly absorptive fiber 53 is unevenly distributed to a part near the carrying sheet 2 in a thickness direction of the bulky layer 4 or unevenly distributed to a part away from the carrying sheet 2.SELECTED DRAWING: Figure 1
Patent JP-2020096552-A (JP)
Title: Method for producing food derived from konjak, and food derived from konjak
Inventor: HUANG CHAO
IPC: A23L19/00
Filed: 2018-12-17
Abstract: To provide a method for producing food derived from konjak, and food derived from konjak which has a large content of dietary fibers and a low calorie and which is satisfactory in flavor and texture to a large extent.SOLUTION: The food 10 derived from konjak can be produced by passing through a flake processing step of processing konjak or food containing konjak into a flaky shape to obtain flaky bodies, a freezing step of freezing the flaky bodies obtained by the flake processing step, a thawing step of thawing the flaky bodies obtained by the freezing step, a seasoning step of seasoning the flaky bodies obtained by the thawing step, and a drying step of drying the flaky bodies obtained by the seasoning step.SELECTED DRAWING: Figure 2
Patent JP-2020125904-A (JP)
Title: Optical unit
Inventor: KOYAMA MITSUHIRO
IPC: G01N21/88
Filed: 2018-12-19
Abstract: To provide an optical unit capable of obtaining an image in which glare is effectively removed regardless of the surface state of an object when irradiating the object with light and detecting light reflected from the object.SOLUTION: An optical unit 1 of the present invention includes: a light source 5 that irradiates an object with light; a first polarizing element 11 that makes emitted light emitted from the light source 5 linearly polarized; a second polarizing element 16 that transmits reflected light from the object and has a polarization axis that is orthogonal by 90° to a polarization axis of the first polarizing element 11; a first wave plate 12 which is added to the first polarizing element 11 and makes the emitted light emitted from the light source circularly or elliptically polarized; and a second wave plate 17 which has the same phase difference as that of the first wave plate 12 and is added to the second polarizing element 16. The first wave plate 12 and/or the second wave plate 17 are characterized in that they can rotate with respect to the respective polarizing elements 11 and 16 arranged one added to the other.SELECTED DRAWING: Figure 2
Patent JP-2020102546-A (JP)
Title: Semiconductor device
Inventor: MIYAZAKI TOSHIHIRO
IPC: H01L23/29
Filed: 2018-12-21
Abstract: To suppress generation of locally large distortion on an end of a solder layer.SOLUTION: A semiconductor device disclosed by the present specification is a semiconductor device configured by joining a plurality of members including a semiconductor element through a solder layer and includes a first member which is one of the plurality of members and a second member which is one of the plurality of members and is jointed to the first member through the solder layer. A wall is erected on the surface of the first member or the second member along an outer peripheral edge of the solder layer and the wall is composed of a metallic material having a porous structure and a part of the solder layer is impregnated into the wall.SELECTED DRAWING: Figure 1
Patent JP-2020100347-A (JP)
Title: Axle driving device
Inventor: SUGIMOTO HIROSHI
IPC: B60K17/04
Filed: 2018-12-25
Abstract: To provide an axle driving device which can be attached to or detached from a vehicle body frame while supporting a first motor serving as a driving source and effectively prevent occurrence of a local weight load while attached to the vehicle body frame.SOLUTION: An axle driving device of the invention has an adapter unit. The adapter unit has: an adapter case which can be connected to an axle driving case while supporting a first motor; an adapter input member which is connected to an output shaft of the first motor by connection of the first motor to the adapter case; an adapter output member which is connected to an axle driving input member by connection of the adapter case to the axle driving case; and an adapter transmission mechanism which operatively transmits rotational power from the adapter input member to the adapter output member. The axle driving device may be attached to a vehicle body frame through an axle driving case side frame connection part provided at the axle driving case and an adapter case side frame connection part provided at the adapter case.SELECTED DRAWING: Figure 4
Patent JP-2020104188-A (JP)
Title: Electric gripper device, and electric gripper device control program
Inventor: SAITO WATARU
IPC: B25J15/08
Filed: 2018-12-26
Abstract: To achieve down sizing while reducing an impact load occurring when gripping, and reduce user's labor for adjustment, maintenance and so on.SOLUTION: An electric gripper device comprises a drive mechanism with self-locking function, a fitting member, a claw member, an elastic member, a current sensor, and a control part. The control part executes processing such that a current value of a motor, when the claw member does not contact a gripping object, is so made as to be a first current value, a current value of the motor, when the claw member has completed to grip the gripping object, is so made as to be a second current value, the motor is driven at a first speed when a detection current value of the current sensor after starting to close the claw member is a threshold, which is so set as to be the first current value or more and less than the second current value, or less, and the motor is driven at a second speed slower than the first speed when the detection current value of the current sensor exceeds the threshold and is less than the second current value.SELECTED DRAWING: Figure 6
Patent JP-2020105268-A (JP)
Title: Antistatic laminate and antistatic adhesive
Inventor: SUZUKI SHUNSUKE
IPC: B32B27/30
Filed: 2018-12-26
Abstract: To provide an antistatic laminate and an antistatic adhesive capable of maintaining an antistatic property and an adhesive strength required during heat treatment at high temperature, easily removing from an adherend after heat treatment, and reducing or eliminating contaminants such as an antistatic agent and an adhesive residue on the adherend after removal of the antistatic laminate and the antistatic adhesive therefrom.SOLUTION: There is provided an antistatic laminate comprising a substrate and an adhesive layer. The adhesive layer comprises: a (meth) acrylic adhesive polymer and a self-crosslinking (meth) acrylic copolymer having an epoxy group and an epoxy group-reactive functional group; and an ionic liquid having an epoxy group-reactive functional group. The adhesive layer has a sea-island structure comprising a sea containing a (meth) acrylic adhesive polymer and an island containing a self-crosslinking (meth) acrylic copolymer.SELECTED DRAWING: Figure 1
Patent JP-2020106964-A (JP)
Title: Bathing system
Inventor: NONAKA TAKASHI
IPC: A61B5/01
Filed: 2018-12-26
Abstract: To provide a bathing system capable of enhancing sound sleep of a bather, and improving and preventing sleep disorder even when there is a short time left from a time when the bather can bathe to a sleeping scheduled clock time of the bather.SOLUTION: A bathing system SY comprises control means C capable of performing control of notification operation for encouraging a bather to stop bathing at timing at which a deep body temperature of the bather rises by his/her bathing by just a body temperature rising target temperature. The control means C is configured to: determine a body temperature rising target temperature for deep body temperature of the bather based on before-sleeping time from current clock time or bathing scheduled clock time to a sleeping scheduled clock time; and if the before-sleeping time is less than a prescribed first time T1, set the body temperature rising target temperature to be lower than a case where the before-sleeping time is a first time T1 or more, or no temperature rise.SELECTED DRAWING: Figure 1
Patent JP-2020103532-A (JP)
Title: Game machine
Inventor: YAMAZAKI KENTO
IPC: A63F7/02
Filed: 2018-12-27
Abstract: To perform highly interesting display allowing an accurate game situation to be grasped easily.SOLUTION: Performance control means (performance control device 300) can display both of a first decoration game (a decoration special pattern variable display game in a decoration special pattern game display part 42a) for variably displaying an identification pattern (large pattern) in each of plural pattern rows (plural variable display areas) and a second decoration game (a decoration special pattern variable display game in a small pattern variable display part 42b) for variably displaying an identification pattern (small pattern) in each of plural pattern rows (plural variable display areas) on display means in connection with execution of a game (special pattern variable display game), and can execute a specific performance (battle performance) during execution of a game, a distance between pattern rows in the first decoration game differs between an execution period of a specific performance and a period other than the execution period of the specific performance, and a distance between pattern rows in the second decoration game is the same in an execution period of a specific performance and a period other than the execution period of the specific performance.SELECTED DRAWING: Figure 29
Patent JP-2020105355-A (JP)
Title: Film, inkjet head, transport roller, sliding device, metallic mold and hopper
Inventor: MATSUMOTO YASUTAKA
IPC: B65H5/06
Filed: 2018-12-27
Abstract: To provide a film having high strength and high durability.SOLUTION: A film 1 is provided in which 50% or more of a constituent is silsesquioxane. The film 1 with a foregoing configuration can have high durability and high strength. A preferable film 1 out of the foregoing film 1, for example, is the film 1 which has, as a surface functional group, a fluorine functional group having a fluorine and in which 50% or more of an integrated strength ratio in a surface analysis of the fluorine functional group is a perfluoroalkyl group. The film 1 of the foregoing configuration enables adherence of a contact object to be particularly effectively suppressed.SELECTED DRAWING: Figure 1
Patent JP-2020108035-A (JP)
Title: Communication device, control method therefor and program
Inventor: TSUCHIHASHI MASAKAZU
IPC: H04L12/28
Filed: 2018-12-27
Abstract: To provide a communication device a control method therefor and a program, easy to select a connection setting according to a user intention.SOLUTION: The communication device includes: communication means which communicates with an external device; operation means which receives an operation from the user; generation means which includes a first function to generate a connection setting to be used for a connection with the external device, based on information received from the external device through the communication means, and a second function to generate a connection setting based on information input from the user through the operation of the operation means; record control means which controls such that the connection setting generated by the first function shall be recorded to a recording medium in a state of higher priority than the connection setting generated by the second function; and control means which, when connecting to the external device through the communication means, controls to preferentially use the connection setting having higher priority.SELECTED DRAWING: Figure 2
Patent JP-2018530177-A (JP)
Title: 画像又はビデオをユーザが取り込むのを支援する方法及びシステム
IPC: H04N5/232
Filed: 2016-07-26
Abstract: 【課題】  最適品質を備えた画像又はビデオの取り込みにおいてユーザを支援する方法及びシステムを提供する。 【解決手段】  本明細書において、画像又はビデオをユーザが取り込むのを支援するための方法及びシステムの様々な態様が開示される。１つの実施形態によれば、電子デバイスにおける１又は２以上の回路が、ユーザから第１の複数の入力値を受け取るよう構成される。第１の複数の入力値は、第１の位置にて電子デバイスの１又は２以上の視野（ＦＯＶ）における第１のオブジェクトを包含する第１の複数の境界ポイントを含む。その後、画像又はビデオを取り込むために使用される第２の位置及び目標ＦＯＶは、第１の複数の境界ポイントに基づいて決定される。画像又はビデオは、少なくとも第１のオブジェクトを含む。更に、インジケータの表示は、目標ＦＯＶにおける画像又はビデオを取り込むための第２の位置にユーザを案内するよう制御される。 【選択図】      図９
Patent JP-2019501088-A (JP)
Title: 高効率コンベヤアセンブリ
IPC: B65G17/08
Filed: 2016-11-30
Abstract: 材料処理装置（２０）は複数の垂直に積層された反転パンコンベヤ（４２、４４）を内部に持つハウジング（２２）を備える。各コンベヤ（４２、４４）は、整列した前側スプロケット対と後側スプロケット対（９０、９２）の間及びその周りを移動して上側及び下側コンベヤ搬送路（５２、５４）を画定する複数のコンベヤパン（５０）を備える。各パン（５０）は対向する一対の材料保持面（５８、６０）を呈する有孔ベースプレート（５６）を有する。パン（５０）がスプロケット対（９０、９２）に沿って進むと、スプロケット対は反転され、上側搬送路のパン（５０）により運ばれる材料（１１０）が、スプロケット対（９０）の周り及び／又は間を通過することで下側搬送路のパン（５０）へと移される。【選択図】図１
Patent JP-2018530665-A (JP)
Title: 発色処理された基板およびそのための発色処理方法
IPC: C23C16/40
Filed: 2015-12-23
Abstract: 本発明はマグネシウムを含む発色処理された基板、および、そのための基板の発色処理方法に関するものである。本発明に係る発色処理された基板は、マグネシウム基材上に金属酸化物を含む皮膜と波長変換層とが順に積層された構造を有することによって、金属固有の質感および光沢性を維持しつつ、皮膜の平均厚さの制御を通じて表面に多様な色相を均一に具現することができる。
Patent JP-2018525230-A (JP)
Title: 金属プロファイルのサイズの圧延時での熱測定のための方法およびデバイス
IPC: B21C51/00
Filed: 2016-08-10
Abstract: 管または中実の棒のような金属プロファイル１２の少なくとも直径Ｄおよび平均厚さＳ１のうちの少なくとも一方の測定値を得るために、圧延時に、同金属プロファイル１２の横方向サイズを熱測定するための方法およびデバイス。方法は、少なくとも２つの周波数Ｆ１，Ｆ２を有する正弦波電流２０を用いて、互いに対して区別されるとともに空間的に離間している少なくとも２つのセクション１４ａ，１４ｂ，１４ｃ，１４ｄを有する送信要素１４であって、金属プロファイル１２の公称送り軸Ｚに沿って配置されている送信要素１４に電力を供給することと、力線の所望のプロファイルを有する電磁場を前記送信要素１４で発生させることと、互いに対して区別されるとともに空間的に離間している１つ以上のセクション１８ａ，１８ｂを有する受信要素１８であって、前記公称軸Ｚに沿って、前記送信要素１４の全体の長手方向バルクに含まれる位置に配置されている受信要素１８によって、前記送信要素１４の前記セクション１４ａ，１４ｂ，１４ｃ，１４ｄを前記金属プロファイル１２が通過することに起因する電磁場の変化に関連する信号２２を検出することと、を提供する。
Patent JP-2018532709-A (JP)
Title: Ｖｄａｃ１由来ペプチドの類似体
IPC: C07K14/435
Filed: 2016-09-01
Abstract: 本発明は、天然の親ペプチドと比較して薬物動態特性が改善されたＶＤＡＣ１由来ペプチドの類似体を含むペプチドに関し、これらのペプチドは、細胞エネルギー産生の障害、アポトーシスと細胞死、特に癌細胞の細胞死の誘導、癌幹細胞の除去、および肝細胞内の脂肪の蓄積に伴う症状、特に非アルコール性脂肪性肝疾患（ＮＡＦＬＤ）とそれに伴う症状の軽減に効果がある。【選択図】なし
Patent JP-2018526300-A (JP)
Title: ごみ貯蔵装置
IPC: B65F1/06
Filed: 2016-09-12
Abstract: 【解決手段】本書に開示されるごみ貯蔵装置（１００）は、装置（１００）の上部に設けられる受入チャンバ（１３２）と、チャンバ（１３２）に回転可能に装着される回転体（１３６）とを備える。回転体（１３６）は、上環（１５４）と、上環（１５４）から下方に延びる円筒壁（１５０）とを備える。回転体（１３６）は、回転体から延びる少なくとも一つの突起（１５１）を備え、少なくとも一つの突起（１５１）は、ごみ貯蔵カセットの少なくとも一つの対応する凹部（１７１）に位置するよう配置され、チャンバ（１３２）内でごみ貯蔵カセット（１７２）支持し、かつ、回転体（１３６）とカセット（１７２）の回転係合を確実にする。 【選択図】図１
Patent JP-2018534047-A (JP)
Title: 焦点位置を逆行させるｘ線断層撮影のためのシステムおよび方法
IPC: A61B6/02
Filed: 2016-10-14
Abstract: 断層撮影装置が、多焦点Ｘ線照射源と、軌跡経路を移動する支持体と、複数のピクセルを有する検出器とを備えており、多焦点Ｘ線照射源、検出器、および被検査物のうちの１つは、支持体上で移動する。制御プロセッサが、測定領域内の離散的な点において、あるいは連続的に、Ｘ線照射源の焦点の変更を制御し、焦点の変更は、支持アームの移動に逆行する方向であり、検出器メモリが、複数のピクセルの少なくとも一部からの信号電荷を表すデジタルデータを蓄積し、制御プロセッサは、検出器メモリの内容を処理することによって被検査物の立体画像を再現する。連続トモシンセシスのための方法およびコンピュータ可読媒体も開示される。【選択図】図１
Patent JP-2018538130-A (JP)
Title: １２３０ｘａプロセスによる１２３４ｙｆ中の副生成物の無水塩酸又は塩酸水溶液からフッ素化有機化合物を除去する方法
IPC: B01D53/02
Filed: 2016-11-04
Abstract: 活性炭、ＭＦＩモレキュラーシーブ、カーボンモレキュラーシーブ、シリカ、及びこれらの組合せから選択される吸着剤を用いて、２−クロロ−３，３，３−トリフルオロプロペン（ＨＣＦＯ−１２３３ｘｆ）、２，３，３，３−テトラフルオロプロペン（ＨＦＯ−１２３４ｙｆ）、トリフルオロプロピン（ＴＦＰＹ）のようなハロゲン化有機汚染物質を塩酸（ＨＣｌ）から分離する方法を開示する。【選択図】図１
Patent JP-2019503070-A (JP)
Title: 光放射を提供する装置及び方法
IPC: H01S5/042
Filed: 2016-11-30
Abstract: レーザーダイオード（２）、パルス発生器（９）及び変調器（５）を備えて、光放射（１）を提供する装置であって、該装置は、パルス発生器（９）がピコ秒パルスを放射するように形成され、変調器（５）がナノ秒パルスを放射するように形成され、レーザーダイオード（２）が第１の端子（６）と第２の端子（７）を備えており、パルス発生器（９）が第１の端子（６）に接続されており、そして変調器（５）がレーザーダイオード（２）をレーザーダイオード（２）の発振閾値（８）より低くバイアスするように形成されており、そして装置は以下を特徴とする：変調器（５）が第２の端子（７）に接続されており、パルス発生器（９）が微分器（４）に接続される半導体接合（３２）を備えており、半導体接合（３２）が半導体接合（３２）を流れる電流がオンするよりも急速にオフするように形成されており、そして、微分器（４）は、半導体接合（３２）を流れる電流がオフされたことが電気パルスに変換された時に階段状の変化が起きるように形成されており、この結果、微分器が１０ナノ秒より小さい光パルス幅（１１）を備える光パルス（１０）を放射することで、レーザーダイオード（２）が利得スイッチングされる。