公开(公告)号：US07174103B2

公开(公告)日：2007-02-06

申请号：US10716709

申请日：2003-11-20

申请人： Akihiko Nishiki ,  Saeko Oshiba

发明人： Akihiko Nishiki ,  Saeko Oshiba

IPC分类号： H04J14/00

CPC分类号： H04J14/005

摘要： An optical signal encoder/decoder includes a grating waveguide having an identical number of uniform pitch gratings to the number of code chips of a binary phase optical code, the uniform pitch gratings being formed in a waveguide direction to reflect light of a predetermined wavelength. Here, adjacent gratings corresponding to a position at which the optical code value changes are disposed a spacing apart from each other to give a phase shift of (2m+1)π/2 to the light, and the remaining adjacent gratings are disposed a spacing apart from each other to give a phase shift of nπ to the light (m, n: integer).

摘要翻译： 光信号编码器/解码器包括具有相同数量的均匀间距光栅到二进制相位光码的码片数目的光栅波导，均匀间距光栅在波导方向上形成以反射预定波长的光。 这里，与光码值变化的位置对应的相邻光栅配置成彼此分开的间隔，以向光提供（2m + 1）pi / 2的相移，并且剩余的相邻光栅被布置成间隔 相互之间给出npi相对于光（m，n：整数）的相移。

公开(公告)号：US20060115195A1

公开(公告)日：2006-06-01

申请号：US11287227

申请日：2005-11-28

申请人： Shuko Kobayashi ,  Akihiko Nishiki

发明人： Shuko Kobayashi ,  Akihiko Nishiki

IPC分类号： G02F1/01 ,  G02F1/295 ,  G02F1/035 ,  G02B6/34

CPC分类号： G02B6/0218 ,  G02B6/022 ,  G02B6/02204 ,  G02F1/011 ,  G02F1/0147 ,  G02F2201/307

摘要： There is provided a fiber Bragg grating devise comprising an FBG mount that is constituted by sequentially stacking a temperature control plate, a base plate, and a mounting plate, and an SSFBG in which a plurality of FBG units of the same constitution and a plurality of phase modulation portions are alternately formed in the same optical fiber. The temperature control plate is constituted by a thermo module and a heat-insulating member. The base plate is fixed in contact with the upper face of the temperature control plate and the mounting plate is in contact with the upper face of the base plate in a state where the mounting plate is able to glide over the upper face of the base plate. The SSFBG is fixed to contact an FBG contact portion that is established on the upper face of the mounting plate. The phase modulation portions are formed to be capable of expanding and contracting and, as a result of the expansion and contraction of the phase modulation portions, the phase of the carrier wave of the optical pulse signal that is propagated by the phase modulation portions can be changed.

摘要翻译： 提供了一种光纤布拉格光栅装置，其包括通过顺序堆叠温度控制板，基板和安装板而构成的FBG安装座，以及SSFBG，其中具有相同结构的多个FBG单元和多个 相位调制部分交替地形成在相同的光纤中。 温度控制板由热模块和绝热构件构成。 基板与温度控制板的上表面固定接触，并且安装板在安装板能够滑动到底板的上表面的状态下与基板的上表面接触 。 SSFBG被固定以接触建立在安装板的上表面上的FBG接触部分。 相位调制部分形成为能够扩展和缩小，并且由于相位调制部分的扩展和缩小，由相位调制部分传播的光脉冲信号的载波相位可以是 改变了

公开(公告)号：US06174648B1

公开(公告)日：2001-01-16

申请号：US09109904

申请日：1998-07-02

申请人： Yoshitaka Terao ,  Tsutomu Nomoto ,  Akihiko Nishiki

发明人： Yoshitaka Terao ,  Tsutomu Nomoto ,  Akihiko Nishiki

IPC分类号： G03C500

CPC分类号： G02B6/3636 ,  G02B6/02138 ,  G02B6/02152 ,  G02B6/02209 ,  G02B6/362 ,  G02B6/3692

摘要： An optical filter is manufactured by placing a photosensitive optical fiber in a spiral arrangement on a fiber holder, preferably having a spiral groove for holding the fiber, and exposing the fiber to ultraviolet light through a phase mask having a spiral diffraction grating, forming an in-fiber Bragg grating. The fiber can be conveniently scanned by an ultraviolet beam as the fiber holder and phase mask turn on a rotating stage. The fiber can be compactly packaged between the fiber holder and a cover. The fiber holder and cover can be formed by coating a substrate with layers of polymer material, the spiral groove being formed by photolithographic patterning of one of the layers.

摘要翻译： 光学滤光器是通过将光纤光纤放置在光纤保持器上而制成的，该感光光纤优选地具有用于保持光纤的螺旋槽，并且通过具有螺旋衍射光栅的相位掩模将光纤暴露于紫外光，形成为 光纤布拉格光栅。 当光纤保持器和相位掩模转动在旋转台上时，纤维可以被紫外线束方便地扫描。 纤维可以紧密地包装在纤维架和盖子之间。 纤维保持器和盖可以通过用聚合物材料层涂覆基底而形成，螺旋槽通过其中一层的光刻图案形成。

公开(公告)号：US5935756A

公开(公告)日：1999-08-10

申请号：US876512

申请日：1997-06-16

申请人： Katsuaki Kaifu ,  Akihiko Nishiki ,  Takeshi Koyano

发明人： Katsuaki Kaifu ,  Akihiko Nishiki ,  Takeshi Koyano

IPC分类号： B41M5/323 ,  C07C245/20 ,  C09B29/01 ,  G03C1/54 ,  G03F7/016

CPC分类号： C07C245/20 ,  G03C1/54

摘要： A diazonium salt for a color-forming layer of a thermosensitive recording medium, having formula (1): ##STR1## wherein R is an alkyl group having four carbon atoms which is selected from the group consisting of n-butyl, t-butyl, and sec-butyl, and X.sup.- is selected from the group consisting of hexafluorophosphate ion PF.sub.6.sup.-, tetrafluoroborate ion BF.sub.4.sup.- and tetraphenylborate ion (C.sub.6 H.sub.5).sub.4 B.sup.-. In a first embodiment, a thermosensitive recording medium has a color-forming layer which includes a diazonium salt as described above, a basic compound and a coupler. In a second embodiment, a thermosensitive recording medium has a color-forming layer which includes: a diazonium salt, a basic compound, and a coupler, wherein the diazonium salt has a formula (2): ##STR2## where R.sup.1 and R.sup.2 are alkyl groups each having one or more carbon atoms, and X.sup.- is selected from the group consisting of hexafluorophosphate ion PF.sub.6.sup.-, tetrafluoroborate ion BF.sub.4.sup.- and tetraphenylborate ion (C.sub.6 H.sub.5).sub.4 B.sup.-.

摘要翻译： 一种用于热敏记录介质的成色层的重氮盐，其具有式（1）：其中R是具有四个碳原子的烷基，其选自正丁基，叔丁基和仲丁基， 丁基和X选自六氟磷酸根离子PF 6 - ，四氟硼酸根离子BF 4 - 和四苯基硼酸根离子（C 6 H 5）4 B-。 在第一实施方案中，热敏记录介质具有包含如上所述的重氮盐，碱性化合物和成色剂的成色层。 在第二个实施方案中，热敏记录介质具有包含重氮盐，碱性化合物和成色剂的成色层，其中重氮盐具有式（2）：其中R 1和R 2是各自具有式 一个或多个碳原子，X - 选自六氟磷酸根离子PF 6 - ，四氟硼酸根离子BF 4 - 和四苯基硼酸根离子（C 6 H 5）4B。

公开(公告)号：US5223905A

公开(公告)日：1993-06-29

申请号：US658384

申请日：1991-02-20

申请人： Yasushi Yamada ,  Kazuhiro Hirota ,  Akihiko Nishiki

发明人： Yasushi Yamada ,  Kazuhiro Hirota ,  Akihiko Nishiki

IPC分类号： G03B27/62 ,  G03G15/00

CPC分类号： G03G15/60 ,  G03B27/6264 ,  G03G2215/00185

摘要： An automatic document conveying device comprising a paper-feeder for sequentially separating one document sheet from a stack of document sheets loaded on a document loading table and for sequentially transporting each document sheet to a standby position upstream of an image exposure section and for halting each document sheet at the standby position, the standby position being variably determined by the length of each document sheet. A conveyor conveys each document sheet from the standby position to an exposure position on the image exposure section on a glass surface of the document loading table, each document is discharged after it is scanned and exposed by the image exposure section. The image exposure section is controlled to scan and expose a first document sheet, and a second document sheet is halted at the standby position while the first document is being scanned and exposed. The first document sheet is discharged after it has been scanned and exposed, and the second document sheet is conveyed from the standby position to the image exposure position when discharge of the first document begins. A third document sheet is then conveyed to the standby position at least before the scanning and exposure of the second document at the image exposure position is completed. The paper-feeder, conveyor and discharge device are operated until the entire stack of documents loaded on the document loading table is scanned and exposed.

公开(公告)号：US07680415B2

公开(公告)日：2010-03-16

申请号：US12355312

申请日：2009-01-16

申请人： Naoki Minato ,  Akihiko Nishiki ,  Hideyuki Iwamura ,  Takashi Ushikubo

发明人： Naoki Minato ,  Akihiko Nishiki ,  Hideyuki Iwamura ,  Takashi Ushikubo

IPC分类号： H04J4/00 ,  H04J14/08

CPC分类号： H04J14/005 ,  H04J14/02

摘要： An object of the present invention is to provide an OCDM transceiver with which the reduction amount of the intensity of the correlation waveform signal is smaller than that of a conventional device of the same type in the decoding step that comprises a time gate processing step. Hence, in the OCDM transceiver of the present invention that comprises an encoding portion and a decoding portion, the decoding portion is constituted comprising a decoder, clock extractor, and time gate. The decoder decodes an encoded optical pulse signal and separates the encoded optical pulse signal into a clock signal extraction signal and an optical pulse signal playback signal. The clock extractor extracts a clock signal from the clock signal extraction signal. Further, the time gate removes only the auto-correlation waveform component from the optical pulse signal playback signal. The auto-correlation waveform component is converted to an electrical signal by means of an optical receiver and generated as a reception signal.

摘要翻译： 本发明的目的是提供一种OCDM收发器，在包括时间门处理步骤的解码步骤中，相关波形信号的强度的减少量比相同类型的常规装置的减少量小。 因此，在包括编码部分和解码部分的本发明的OCDM收发器中，解码部分包括解码器，时钟提取器和时间门。 解码器解码编码的光脉冲信号，并将编码的光脉冲信号分离成时钟信号提取信号和光脉冲信号重放信号。 时钟提取器从时钟信号提取信号中提取时钟信号。 此外，时间栅极仅从光脉冲信号重放信号中去除自相关波形分量。 自相关波形分量通过光接收机转换为电信号，并作为接收信号产生。

公开(公告)号：US20090190927A1

公开(公告)日：2009-07-30

申请号：US12355312

申请日：2009-01-16

申请人： NAOKI MINATO ,  Akihiko Nishiki

发明人： NAOKI MINATO ,  Akihiko Nishiki

IPC分类号： H04J14/00

CPC分类号： H04J14/005 ,  H04J14/02

摘要： An object of the present invention is to provide an OCDM transceiver with which the reduction amount of the intensity of the correlation waveform signal is smaller than that of a conventional device of the same type in the decoding step that comprises a time gate processing step. Hence, in the OCDM transceiver of the present invention that comprises an encoding portion and a decoding portion, the decoding portion is constituted comprising a decoder, clock extractor, and time gate. The decoder decodes an encoded optical pulse signal and separates the encoded optical pulse signal into a clock signal extraction signal and an optical pulse signal playback signal. The clock extractor extracts a clock signal from the clock signal extraction signal. Further, the time gate removes only the auto-correlation waveform component from the optical pulse signal playback signal. The auto-correlation waveform component is converted to an electrical signal by means of an optical receiver and generated as a reception signal.

摘要翻译： 本发明的目的是提供一种OCDM收发器，在包括时间门处理步骤的解码步骤中，相关波形信号的强度的减少量比相同类型的常规装置的减少量小。 因此，在包括编码部分和解码部分的本发明的OCDM收发器中，解码部分包括解码器，时钟提取器和时间门。 解码器解码编码的光脉冲信号，并将编码的光脉冲信号分离成时钟信号提取信号和光脉冲信号重放信号。 时钟提取器从时钟信号提取信号中提取时钟信号。 此外，时间栅极仅从光脉冲信号重放信号中去除自相关波形分量。 自相关波形分量通过光接收机转换为电信号，并作为接收信号产生。

公开(公告)号：US07127140B2

公开(公告)日：2006-10-24

申请号：US11287227

申请日：2005-11-28

申请人： Shuko Kobayashi ,  Akihiko Nishiki

发明人： Shuko Kobayashi ,  Akihiko Nishiki

IPC分类号： G02B6/34 ,  H04J14/02

CPC分类号： G02B6/0218 ,  G02B6/022 ,  G02B6/02204 ,  G02F1/011 ,  G02F1/0147 ,  G02F2201/307

摘要： There is provided a fiber Bragg grating devise comprising an FBG mount that is constituted by sequentially stacking a temperature control plate, a base plate, and a mounting plate, and an SSFBG in which a plurality of FBG units of the same constitution and a plurality of phase modulation portions are alternately formed in the same optical fiber. The temperature control plate is constituted by a thermo module and a heat-insulating member. The base plate is fixed in contact with the upper face of the temperature control plate and the mounting plate is in contact with the upper face of the base plate in a state where the mounting plate is able to glide over the upper face of the base plate. The SSFBG is fixed to contact an FBG contact portion that is established on the upper face of the mounting plate. The phase modulation portions are formed to be capable of expanding and contracting and, as a result of the expansion and contraction of the phase modulation portions, the phase of the carrier wave of the optical pulse signal that is propagated by the phase modulation portions can be changed.

摘要翻译： 提供了一种光纤布拉格光栅装置，其包括通过顺序堆叠温度控制板，基板和安装板而构成的FBG安装座，以及SSFBG，其中具有相同结构的多个FBG单元和多个 相位调制部分交替地形成在相同的光纤中。 温度控制板由热模块和绝热构件构成。 基板与温度控制板的上表面固定接触，并且安装板在安装板能够滑动到底板的上表面的状态下与基板的上表面接触 。 SSFBG被固定以接触建立在安装板的上表面上的FBG接触部分。 相位调制部分形成为能够扩展和缩小，并且由于相位调制部分的扩展和缩小，由相位调制部分传播的光脉冲信号的载波相位可以是 改变了

公开(公告)号：US20060115272A1

公开(公告)日：2006-06-01

申请号：US11284971

申请日：2005-11-23

申请人： Naoki Minato ,  Akihiko Nishiki ,  Hideyuki Iwamura ,  Takashi Ushikubo

发明人： Naoki Minato ,  Akihiko Nishiki ,  Hideyuki Iwamura ,  Takashi Ushikubo

IPC分类号： H04J14/00

CPC分类号： H04J14/005 ,  H04J14/02

摘要： An object of the present invention is to provide an OCDM transceiver with which the reduction amount of the intensity of the correlation waveform signal is smaller than that of a conventional device of the same type in the decoding step that comprises a time gate processing step. Hence, in the OCDM transceiver of the present invention that comprises an encoding portion and a decoding portion, the decoding portion is constituted comprising a decoder, clock extractor, and time gate. The decoder decodes an encoded optical pulse signal and separates the encoded optical pulse signal into a clock signal extraction signal and an optical pulse signal playback signal. The clock extractor extracts a clock signal from the clock signal extraction signal. Further, the time gate removes only the auto-correlation waveform component from the optical pulse signal playback signal. The auto-correlation waveform component is converted to an electrical signal by means of an optical receiver and generated as a reception signal.

摘要翻译： 本发明的目的是提供一种OCDM收发器，在包括时间门处理步骤的解码步骤中，相关波形信号的强度的减少量比相同类型的常规装置的减少量小。 因此，在包括编码部分和解码部分的本发明的OCDM收发器中，解码部分包括解码器，时钟提取器和时间门。 解码器解码编码的光脉冲信号，并将编码的光脉冲信号分离成时钟信号提取信号和光脉冲信号重放信号。 时钟提取器从时钟信号提取信号中提取时钟信号。 此外，时间栅极仅从光脉冲信号重放信号中去除自相关波形分量。 自相关波形分量通过光接收机转换为电信号，并作为接收信号产生。

公开(公告)号：US07039260B2

公开(公告)日：2006-05-02

申请号：US10358316

申请日：2003-02-05

申请人： Akihiko Nishiki ,  Masanori Hanawa ,  Hiroyuki Sasaki ,  Mikio Takahara

发明人： Akihiko Nishiki ,  Masanori Hanawa ,  Hiroyuki Sasaki ,  Mikio Takahara

IPC分类号： G02F1/295

CPC分类号： G02B6/12007 ,  G02B6/29319 ,  G02B2006/12107 ,  H04B10/508

摘要： A method for generating an optical pulse train includes generating a source optical pulse train having a predetermined pulse period; optically combining a plurality of uniform pitch grating waveguides having a substantially identical Bragg wavelength and λ/4-phase-shift waveguides in an alternating sequence so as to form a multiple λ/4-phase-shift grating waveguide; inputting the source optical pulse train from one end of the multiple λ/4-phase-shifted grating waveguide; and extracting reflected optical pulses by the plurality of uniform pitch grating waveguides from the one end of the multiple λ/4-phase-shifted grating waveguide.

摘要翻译： 一种产生光脉冲串的方法包括产生具有预定脉冲周期的源光脉冲串; 以交替的顺序光学地组合具有基本相同的布拉格波长和λ/ 4-相移波导的多个均匀间距光栅波导，以便形成多个λ/ 4相移光栅波导; 从多个λ/ 4相移光栅波导的一端输入源光脉冲串; 并且从多个λ/ 4移相光栅波导的一端提取多个均匀间距光栅波导的反射光脉冲。