公开(公告)号：US20140105544A1

公开(公告)日：2014-04-17

申请号：US14119746

申请日：2012-05-10

申请人： Jun Ushida ,  Shigeru Nakamura ,  Shigeki Takahashi

发明人： Jun Ushida ,  Shigeru Nakamura ,  Shigeki Takahashi

IPC分类号： G02B6/24

CPC分类号： G02B6/243 ,  G02B6/12 ,  G02B2006/12126

摘要： An optical waveguide type optical terminator forms an optical waveguide structure including at least an optical absorption core (103) which is formed on a clad layer (102) and includes a portion composed of silicon in which an impurity of 1019 cm−3 or more is doped, and is used by being optically connected in series with an optical waveguide including a core (105) composed of silicon. The optical absorption core (103) is sufficient provided that, at least, an impurity of around 1019 cm−3 is doped therein. For example, its impurity concentration is sufficient provided that it falls within a range of 1019 -1020 cm−3. The existence of this impurity causes absorption of light in the optical absorption core (103).

摘要翻译： 光波导型光学终端器形成至少包括形成在包层（102）上的光吸收芯（103）的光波导结构，其包括由1019cm-3以上的杂质为硅的硅构成的部分 并且通过与包括由硅构成的芯（105）的光波导光学连接而被使用。 光吸收芯（103）足够，只要至少掺杂约1019cm-3的杂质即可。 例如，其杂质浓度足以满足1019-1020cm-3的范围。 这种杂质的存在导致光吸收芯（103）中的光的吸收。

公开(公告)号：US09274280B2

公开(公告)日：2016-03-01

申请号：US14119746

申请日：2012-05-10

申请人： Jun Ushida ,  Shigeru Nakamura ,  Shigeki Takahashi

发明人： Jun Ushida ,  Shigeru Nakamura ,  Shigeki Takahashi

IPC分类号： G02B6/10 ,  G02B6/24 ,  G02B6/12

CPC分类号： G02B6/243 ,  G02B6/12 ,  G02B2006/12126

摘要： An optical waveguide type optical terminator forms an optical waveguide structure including at least an optical absorption core (103) which is formed on a clad layer (102) and includes a portion composed of silicon in which an impurity of 1019 cm−3 or more is doped, and is used by being optically connected in series with an optical waveguide including a core (105) composed of silicon. The optical absorption core (103) is sufficient provided that, at least, an impurity of around 1019 cm−3 is doped therein. For example, its impurity concentration is sufficient provided that it falls within a range of 1019-1020 cm−3. The existence of this impurity causes absorption of light in the optical absorption core (103).

摘要翻译： 光波导型光学终端器形成至少包括形成在包层（102）上的光吸收芯（103）的光波导结构，其包括由1019cm-3以上的杂质为硅的硅构成的部分 并且通过与包括由硅构成的芯（105）的光波导光学连接而被使用。 光吸收芯（103）足够，只要至少掺杂约1019cm-3的杂质即可。 例如，其杂质浓度足以在1019-1020cm-3的范围内。 这种杂质的存在导致光吸收芯（103）中的光的吸收。

公开(公告)号：US20130170793A1

公开(公告)日：2013-07-04

申请号：US13823027

申请日：2011-09-21

申请人： Jun Ushida ,  Shigeru Nakamura

发明人： Jun Ushida ,  Shigeru Nakamura

IPC分类号： G02B6/26

CPC分类号： G02B6/26 ,  G02B6/1228 ,  G02B6/305

摘要： The present invention provides a small optical waveguide structure capable of converting the spot size of light, and capable of reducing the conversion loss when compared under the condition of the same waveguide length and performing an optical conversion with high efficiency. An optical waveguide structure (100) includes a base waveguide (110) including a taper section (111) whose width becomes continuously narrower from one side toward another side, and a narrow-width section (112) that is consecutively connected to a narrow-width side of the taper section (111) and extends toward the another side. In the optical waveguide structure (100), at least three-layered upper waveguides (121 to 123) each of which has a planar shape smaller than the taper section (111) and includes a planar-view-roughly-wedge-shaped section whose width becomes continuously narrower from the one side toward the another side at least on a tip side are stacked above the taper section (111) of the base waveguide (110) in such a manner that the planar shape becomes successively smaller from the base waveguide side (110).

摘要翻译： 本发明提供了一种能够转换光斑尺寸的小型光波导结构，并且在相同波导长度的条件下进行比较并能够以高效率进行光转换时，能够降低转换损耗。 光波导结构（100）包括：基底波导（110），其包括宽度从一侧朝向另一侧连续变窄的锥形部（111），以及窄宽度部（112），其连续地连接到狭窄部 锥形部分（111）的宽度侧并且朝向另一侧延伸。 在光波导结构（100）中，至少三层上波导（121〜123）具有比锥形部（111）小的平面形状，并且具有俯视大致楔形的截面， 宽度从一侧朝向另一侧连续变窄，至少在前端侧以基板波导（110）的锥形部（111）的上方层叠，使得平面形状从基底波导侧连续变小 （110）。

公开(公告)号：US08913860B2

公开(公告)日：2014-12-16

申请号：US13823027

申请日：2011-09-21

申请人： Jun Ushida ,  Shigeru Nakamura

发明人： Jun Ushida ,  Shigeru Nakamura

IPC分类号： G02B6/26 ,  G02B6/10 ,  G02B6/30 ,  G02B6/122

CPC分类号： G02B6/26 ,  G02B6/1228 ,  G02B6/305

摘要： The present invention provides a small optical waveguide structure capable of converting the spot size of light, and capable of reducing the conversion loss when compared under the condition of the same waveguide length and performing an optical conversion with high efficiency. An optical waveguide structure (100) includes a base waveguide (110) including a taper section (111) whose width becomes continuously narrower from one side toward another side, and a narrow-width section (112) that is consecutively connected to a narrow-width side of the taper section (111) and extends toward the another side. In the optical waveguide structure (100), at least three-layered upper waveguides (121 to 123) each of which has a planar shape smaller than the taper section (111) and includes a planar-view-roughly-wedge-shaped section whose width becomes continuously narrower from the one side toward the another side at least on a tip side are stacked above the taper section (111) of the base waveguide (110) in such a manner that the planar shape becomes successively smaller from the base waveguide side (110).

摘要翻译： 本发明提供了一种能够转换光斑尺寸的小型光波导结构，并且在相同波导长度的条件下进行比较并能够以高效率进行光转换时，能够降低转换损耗。 光波导结构（100）包括：基底波导（110），其包括宽度从一侧朝向另一侧连续变窄的锥形部（111），以及窄宽度部（112），其连续地连接到狭窄部 锥形部分（111）的宽度侧并且朝向另一侧延伸。 在光波导结构（100）中，至少三层上波导（121〜123）具有比锥形部（111）小的平面形状，并且具有俯视大致楔形的截面， 宽度从一侧朝向另一侧连续变窄，至少在前端侧以基板波导（110）的锥形部（111）的上方层叠，使得平面形状从基底波导侧连续变小 （110）。

公开(公告)号：US09151892B2

公开(公告)日：2015-10-06

申请号：US14000084

申请日：2012-02-01

申请人： Shigeki Takahashi ,  Shigeru Nakamura ,  Masashige Ishizaka ,  Nobuhide Fujioka

发明人： Shigeki Takahashi ,  Shigeru Nakamura ,  Masashige Ishizaka ,  Nobuhide Fujioka

IPC分类号： G02B6/12 ,  G02B6/122 ,  G02B6/30 ,  G02B6/26

CPC分类号： G02B6/1228 ,  G02B6/262 ,  G02B6/305

摘要： In order to provide a spot size converter and a method for making the same which enable the optical connection with low loss and are able to reduce the excess loss for the position misalignment in mounting, a spot size converter according to an exemplary aspect of the present invention includes: a substrate on which an optical waveguide including a first core is laminated and which includes a notch; a core reducing part which is formed so that a cross-section area of the first core may gradually decrease toward an end part of the first core in the direction of light propagation; a second core which surrounds the core reducing part and is made of a material whose refractive index is smaller than that of the first core; a peripheral clad which surrounds the second core and is made of a material whose refractive index is smaller than that of the second core; and a lower clad which is formed in a lower part of the second core and includes the peripheral clad; wherein the lower clad is formed in the notch.

摘要翻译： 为了提供一种光斑尺寸转换器及其制造方法，能够实现低损耗的光连接并且能够减少安装时位置偏差的过多损耗，根据本发明的示例性方面的光斑尺寸转换器 本发明包括：基板，其上层叠包括第一芯的光波导，并且包括凹口; 芯部还原部，其形成为使得第一芯的截面积在光传播方向上朝向第一芯的端部逐渐减小; 围绕所述纤芯缩径部的第二纤芯，由折射率小于所述第一纤芯的材料制成; 围绕第二芯的外围包层，由折射率小于第二芯的材料制成; 以及形成在所述第二芯体的下部并且包括所述周边包层的下部包层; 其中所述下包层形成在所述凹口中。

公开(公告)号：US20130322816A1

公开(公告)日：2013-12-05

申请号：US14000084

申请日：2012-02-01

申请人： Shigeki Takahashi ,  Shigeru Nakamura ,  Masashige Ishizaka ,  Nobuhide Fujioka

发明人： Shigeki Takahashi ,  Shigeru Nakamura ,  Masashige Ishizaka ,  Nobuhide Fujioka

IPC分类号： G02B6/26

CPC分类号： G02B6/1228 ,  G02B6/262 ,  G02B6/305

摘要： In order to provide a spot size converter and a method for making the same which enable the optical connection with low loss and are able to reduce the excess loss for the position misalignment in mounting, a spot size converter according to an exemplary aspect of the present invention includes: a substrate on which an optical waveguide including a first core is laminated and which includes a notch; a core reducing part which is formed so that a cross-section area of the first core may gradually decrease toward an end part of the first core in the direction of light propagation; a second core which surrounds the core reducing part and is made of a material whose refractive index is smaller than that of the first core; a peripheral clad which surrounds the second core and is made of a material whose refractive index is smaller than that of the second core; and a lower clad which is formed in a lower part of the second core and includes the peripheral clad; wherein the lower clad is formed in the notch.

摘要翻译： 为了提供一种光斑尺寸转换器及其制造方法，能够实现低损耗的光连接并且能够减少安装时位置偏差的过多损耗，根据本发明的示例性方面的光斑尺寸转换器 本发明包括：基板，其上层叠包括第一芯的光波导，并且包括凹口; 芯部还原部，其形成为使得第一芯的截面积在光传播方向上朝向第一芯的端部逐渐减小; 围绕所述纤芯缩径部的第二纤芯，由折射率小于所述第一纤芯的材料制成; 围绕第二芯的外围包层，由折射率小于第二芯的材料制成; 以及形成在所述第二芯体的下部并且包括所述周边包层的下部包层; 其中所述下包层形成在所述凹口中。

公开(公告)号：US11636233B2

公开(公告)日：2023-04-25

申请号：US17443544

申请日：2021-07-27

申请人： Takeshi Homma ,  Hiroshi Hinohara ,  Shigeru Nakamura ,  Yuichi Kawasaki

发明人： Takeshi Homma ,  Hiroshi Hinohara ,  Shigeru Nakamura ,  Yuichi Kawasaki

IPC分类号： G06F21/62 ,  H04N1/44 ,  G06F3/048 ,  G06F21/84 ,  G06F3/0484 ,  G06F3/14

摘要： A communication terminal, a system, a method, and a control program stored in a non-transitory recording medium for controlling capturing of an image, each of which displays, on a display of the communication terminal, an image based on image data to be shared with a counterpart communication terminal; receives an instruction to prohibit capturing of a screen that includes the image based on the image data; and transmits, from the communication terminal to the counterpart communication terminal, information related to the instruction to prohibit capturing of the screen.

公开(公告)号：US11418628B2

公开(公告)日：2022-08-16

申请号：US17141236

申请日：2021-01-05

申请人： Hideki Shiro ,  Shigeru Nakamura ,  Yuichi Kawasaki ,  Hiroshi Hinohara ,  Takeshi Homma

发明人： Hideki Shiro ,  Shigeru Nakamura ,  Yuichi Kawasaki ,  Hiroshi Hinohara ,  Takeshi Homma

IPC分类号： H04L67/00 ,  H04L67/75 ,  G06F3/14 ,  G06T11/60 ,  H04L67/1097

摘要： A communication terminal shares data with another communication terminal. The communication terminal includes circuitry. The circuitry receives, from a communication management apparatus that manages the data shared with the another communication terminal, storage location information representing a storage location of background image data transmitted from the another communication terminal, and transmits a download request to an image storing apparatus corresponding to the storage location to request download of the background image data. The circuitry further starts downloading the background image data from the image storing apparatus and receives, from the communication management apparatus, stroke data of a stroke image rendered on the another communication terminal.

公开(公告)号：US20220035958A1

公开(公告)日：2022-02-03

申请号：US17443544

申请日：2021-07-27

申请人： Takeshi Homma ,  Hiroshi Hinohara ,  Shigeru Nakamura ,  Yuichi Kawasaki

发明人： Takeshi Homma ,  Hiroshi Hinohara ,  Shigeru Nakamura ,  Yuichi Kawasaki

IPC分类号： G06F21/84 ,  G06F3/14 ,  G06F3/0484

摘要： A communication terminal, a system, a method, and a control program stored in a non-transitory recording medium for controlling capturing of an image, each of which displays, on a display of the communication terminal, an image based on image data to be shared with a counterpart communication terminal; receives an instruction to prohibit capturing of a screen that includes the image based on the image data; and transmits, from the communication terminal to the counterpart communication terminal, information related to the instruction to prohibit capturing of the screen.

公开(公告)号：US20150237089A1

公开(公告)日：2015-08-20

申请号：US14617381

申请日：2015-02-09

申请人： Hiroshi HINOHARA ,  Shigeru Nakamura ,  Hiroyuki Kanda

发明人： Hiroshi HINOHARA ,  Shigeru Nakamura ,  Hiroyuki Kanda

IPC分类号： H04L29/06 ,  H04N21/2385 ,  H04N21/2365

CPC分类号： H04L65/4038 ,  H04L67/32 ,  H04N21/2265 ,  H04N21/44209 ,  H04N21/4586

摘要： A communication system is provided that includes a communication terminal that stores at least one program and a plurality of update apparatuses that provide update data for updating the program to the communication terminal. The communication terminal includes a memory that stores update apparatus information associated with communication bandwidth information, and processing circuitry that calculates an actual bandwidth obtained from a previous downloading of previous update data, determines an update apparatus for downloading next update data based on the calculated actual bandwidth and the update apparatus information stored in the memory, and downloads the next update data from the determined update apparatus.

摘要翻译： 提供了一种通信系统，其包括存储至少一个程序的通信终端和提供用于将程序更新到通信终端的更新数据的多个更新装置。 通信终端包括存储与通信带宽信息相关联的更新装置信息的存储器，以及计算从先前更新数据的先前下载获得的实际带宽的处理电路，基于计算出的实际带宽确定下载更新数据的更新装置 以及存储在存储器中的更新装置信息，并从确定的更新装置下载下一更新数据。