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1. 发明授权

US07763485B1 Laser facet pre-coating etch for controlling leakage current 有权
标题翻译：用于控制漏电流的激光刻面预涂蚀刻
公开(公告)号：US07763485B1
公开(公告)日：2010-07-27
申请号：US11749061
申请日：2007-05-15
申请人： Roman Dimitrov , Ashish Verma , Tsurugi Sudo , Scott Lehmann
发明人： Roman Dimitrov , Ashish Verma , Tsurugi Sudo , Scott Lehmann
IPC分类号： H01L21/00
CPC分类号： H01S5/0201 , B82Y20/00 , H01S5/0202 , H01S5/0282 , H01S5/12 , H01S5/34306
摘要： A method for etching facets of a laser die prior to coating in such a way as to control the formation of oxides and metallic films on the facet is disclosed. In one embodiment, the method includes placing a wafer on which the laser is included in the interior volume of an etching chamber. Nitrogen is introduced into the interior volume to define a nitrogen-rich environment. The laser facet is then etched in the nitrogen-rich environment with argon delivered from an ion gun. In another embodiment, the method includes placing the laser in an ion beam etching chamber, then physically etching the facet of the laser with an ion beam that includes an argon/nitrogen mixture. The laser facet(s) can then be coated as desired. The etching method reduces the incidence of leakage current during operation of the laser die caused by metallic film formation on the facet before coating.
摘要翻译：公开了一种用于在涂覆之前蚀刻激光晶片的面的方法，以便在面上控制氧化物和金属膜的形成。在一个实施例中，该方法包括将其上包括激光的晶片放置在蚀刻室的内部空间中。将氮气引入内部容积以定义富氮环境。然后，在离子枪输送的氩气中，在富氮环境中刻蚀激光刻面。在另一个实施例中，该方法包括将激光放置在离子束蚀刻室中，然后用包括氩/氮混合物的离子束物理蚀刻激光的小面。然后可以根据需要涂覆激光刻面。蚀刻方法减少了在涂覆之前由小面上的金属成膜引起的激光裸片的操作期间的漏电流的发生。

2. 发明授权

US08277877B1 Method for applying protective laser facet coatings 有权
标题翻译：施加保护性激光刻面涂层的方法
公开(公告)号：US08277877B1
公开(公告)日：2012-10-02
申请号：US11749052
申请日：2007-05-15
申请人： Roman Dimitrov , Ashish Verma , Tsurugi Sudo , Scott Lehmann
发明人： Roman Dimitrov , Ashish Verma , Tsurugi Sudo , Scott Lehmann
IPC分类号： B05D5/06
CPC分类号： H01S5/1231 , H01S5/0287 , H01S5/0655 , H01S2301/18
摘要： A method for depositing protective coatings on front and rear facets of an optical device, such as a laser die, is disclosed. The protective coatings help prevent laser facet damage common to laser dies manufactured using known processes. In one embodiment, the method for coating the laser die includes placing the laser in an evacuated coating chamber before applying a first coating portion to a first facet of the laser. The first coating portion is applied to the first facet so as to form a protective covering thereon, but is applied at a coating energy that minimizes damage to the as-yet uncoated second facet. The laser is then rotated within the coating chamber, and a full coating is applied to a second facet of the laser. The laser is again rotated, and a full coating is applied atop the first coating portion to the first facet of the laser.
摘要翻译：公开了一种用于在诸如激光裸片的光学装置的前面和后面上沉积保护涂层的方法。保护涂层有助于防止使用已知工艺制造的激光模具的激光面损伤。在一个实施例中，用于涂覆激光管芯的方法包括在将激光器的第一面施加第一涂覆部分之前将激光器放置在抽真空的涂覆室中。将第一涂层部分施加到第一小面以便在其上形成保护性覆盖物，但以涂覆能量施加，使得对尚未未涂覆的第二面的损伤最小化。然后将激光器在涂覆室内旋转，并将全涂层施加到激光器的第二面。激光再次旋转，并且将全涂层施加到第一涂层部分顶部到激光器的第一面。

3. 发明授权

US07567601B1 Semiconductor laser having low stress passivation layer 有权
标题翻译：具有低应力钝化层的半导体激光器
公开(公告)号：US07567601B1
公开(公告)日：2009-07-28
申请号：US11749047
申请日：2007-05-15
申请人： Tsurugi Sudo , Ashish Verma , Jing Chai , Sumesh Mani K. Thiyagarajan
发明人： Tsurugi Sudo , Ashish Verma , Jing Chai , Sumesh Mani K. Thiyagarajan
IPC分类号： H01S5/00
CPC分类号： H01S5/22 , H01S5/06213 , H01S5/12 , H01S5/2214 , H01S5/2216 , H01S2301/176
摘要： A laser diode having a composite passivation layer configured to control parasitic capacitance, especially in high speed laser applications, is disclosed. In one embodiment, a ridge waveguide laser is disclosed and includes: a substrate, an active layer disposed on the substrate, a ridge structure disposed on the active layer, and a contact layer disposed on the ridge structure. A composite passivation layer is disposed substantially laterally to the ridge structure. The composite passivation layer includes a silicon nitride bottom layer, a silicon nitride top layer, and a silicon dioxide middle layer interposed between the bottom and top layers. The passivation layers possess differing stress components that, when combined, cancel out the overall mechanical stress of the passivation layer. This enables relatively thick passivation layers to be employed in high speed laser diodes without increasing the risk of layer stress cracking and laser damage.
摘要翻译：公开了一种激光二极管，其具有被配置为控制寄生电容的复合钝化层，特别是在高速激光应用中。在一个实施例中，公开了一种脊波导激光器，包括：衬底，设置在衬底上的有源层，设置在有源层上的脊结构，以及设置在脊结构上的接触层。复合钝化层基本上横向设置在脊状结构上。复合钝化层包括氮化硅底层，氮化硅顶层和介于底层和顶层之间的二氧化硅中间层。钝化层具有不同的应力分量，当组合时，消除钝化层的整体机械应力。这使得能够在高速激光二极管中使用相对厚的钝化层，而不增加层应力开裂和激光损伤的风险。

4. 发明申请

US20060121683A1 Point source diffusion for avalanche photodiodes 审中-公开
标题翻译：用于雪崩光电二极管的点源扩散
公开(公告)号：US20060121683A1
公开(公告)日：2006-06-08
申请号：US11007558
申请日：2004-12-08
申请人： Daniel Francis , Richard Ratowsky , Ashish Verma , Sunil Thomas , Roman Dimitrov
发明人： Daniel Francis , Richard Ratowsky , Ashish Verma , Sunil Thomas , Roman Dimitrov
IPC分类号： H01L21/20
CPC分类号： H01L31/107 , H01L31/18 , H01L31/1844 , Y02E10/544
摘要： Systems and methods for controlling edge gain in avalanche photodiodes. During fabrication of an avalanche photodiode, the photodiode is diffused with a dopant. The mask used for the dopant includes a plurality of openings such that the dopant diffuses within the photodiode to create a plurality of interconnected spheres. The diffusion front has a shape to introduce an edge effect into the center of the photodiode. The diffusion front ameliorates the edge effect by introducing the edge effect into the center of the photodiode.
摘要翻译：用于控制雪崩光电二极管边缘增益的系统和方法。在制造雪崩光电二极管期间，光电二极管被掺杂剂扩散。用于掺杂剂的掩模包括多个开口，使得掺杂剂在光电二极管内扩散以产生多个互连的球体。扩散前沿具有将边缘效应引入光电二极管的中心的形状。扩散前沿通过将边缘效应引入光电二极管的中心来改善边缘效应。

5. 发明授权

US08034648B1 Epitaxial regrowth in a distributed feedback laser 有权
标题翻译：分布式反馈激光器中的外延再生长
公开(公告)号：US08034648B1
公开(公告)日：2011-10-11
申请号：US11749007
申请日：2007-05-15
申请人： Yuk Lung Ha , David Bruce Young , Ashish Verma , Roman Dimitrov
发明人： Yuk Lung Ha , David Bruce Young , Ashish Verma , Roman Dimitrov
IPC分类号： H01L21/00 , H01L21/31 , H01L21/469
CPC分类号： H01S5/1231 , B82Y20/00 , G02B6/124 , G02B6/131 , H01S5/028 , H01S5/3086 , H01S5/34306
摘要： Optimizing the regrowth over epitaxial layers during manufacture of a distributed feedback laser. In one example embodiment, a method for depositing an InP regrowth layer on an epitaxial base portion of a distributed feedback laser includes growing a first portion of the regrowth layer at an initial substrate temperature of approximately 580 degrees Celsius to a thickness between approximately 300 Angstroms and approximately 900 Angstroms, increasing the substrate temperature from the initial substrate temperature to an increased substrate temperature of approximately 660 degrees Celsius, growing a second portion of the regrowth layer at the increased substrate temperature, doping a first part of an uppermost layer of the regrowth layer at a concentration of approximately 8.00*10^17/cm3 at the increased substrate temperature, and doping a second part of the uppermost layer of the regrowth layer at a concentration between approximately 1.90*10^18/cm3 and approximately 2.00*10^18/cm3 at the increased substrate temperature.
摘要翻译：在制造分布式反馈激光器期间优化外延层的再生长。在一个示例性实施例中，用于在分布式反馈激光器的外延基底部分上沉积InP再生长层的方法包括：将生长层的第一部分在约580摄氏度的初始衬底温度下生长至约300埃至大约900埃，将衬底温度从初始衬底温度增加到大约660摄氏度的衬底温度，在增加的衬底温度下生长第二部分再生长层，掺杂再生长层的最上层的第一部分在增加的衬底温度下的浓度为约8.00×10 17 / cm 3，并且以约1.90×10 18 / cm 3和约2.00×10 18之间的浓度掺杂再生长层的最上层的第二部分 / cm3。

6. 发明申请

US20200211708A1 SUSTAINABLE TYPE 2 DIABETES PREVENTION MODULE 审中-公开
公开(公告)号：US20200211708A1
公开(公告)日：2020-07-02
申请号：US16793572
申请日：2020-02-18
申请人： Christine Tinio Geronimo-Button , Terry Michael Button , Ashish Verma
发明人： Christine Tinio Geronimo-Button , Terry Michael Button , Ashish Verma
IPC分类号： G16H50/20 , A61B5/145 , G16H50/30 , G16H20/60 , G16H20/30 , G16H10/60
摘要： A method is disclosed for monitoring or delaying or preventing or combinations thereof, the onset of Type 2 diabetes or reducing blood sugar level to a normal range that includes interfacing, via a computer-based system, a user device with a processor in communication with one or more data bases; inputting at least one user profile into one or more of the data bases; inputting data into one or more data bases wherein the data relates to diabetes optimized dietetic or diabetes optimized exercise or weight or combinations for at least one user corresponding to the at least one user profile; and presenting to at least one user a summary of the data input into the one or more data bases wherein the data relates to diabetes optimized dietetic or diabetes optimized exercise or weight or combinations. A corresponding system and an article of manufacturing are also disclosed.

7. 发明授权

US10192457B2 Enhancing knowledge bases using rich social media 有权
公开(公告)号：US10192457B2
公开(公告)日：2019-01-29
申请号：US13408547
申请日：2012-02-29
申请人： Jitendra Ajmera , Shantanu Ravindra Godbole , Himabindu Lakkaraju , Bernard Andrew Roden , Ashish Verma
发明人： Jitendra Ajmera , Shantanu Ravindra Godbole , Himabindu Lakkaraju , Bernard Andrew Roden , Ashish Verma
IPC分类号： G09B7/00
摘要： Methods and arrangements for developing knowledge bases from social media. A question is obtained from social media. Social media are consulted, and a legitimacy of the question is ascertained. All the answers to the question are harvested from the social media including the rich media that is associated with these answers, and the question is filtered out if determined not to be legitimate.

8. 发明授权

US08805871B2 Cross-lingual audio search 有权
标题翻译：跨语言音频搜索
公开(公告)号：US08805871B2
公开(公告)日：2014-08-12
申请号：US13598296
申请日：2012-08-29
申请人： Jitendra Ajmera , Ashish Verma
发明人： Jitendra Ajmera , Ashish Verma
IPC分类号： G06F17/30
CPC分类号： G06F17/30755 , G10L15/26
摘要： Methods and arrangements for executing an audio search. A search query in a first language variety is accepted, the search query being in a form of at least one of: text and audio. A corpus of material in the first language variety is accessed, and first language variety baseforms are obtained via data obtained from a second language variety. A first language variety phonetic model is built, and the first language variety phonetic model and the second language variety are employed in executing an audio search based on the accepted search query.
摘要翻译：执行音频搜索的方法和安排。接受第一种语言种类的搜索查询，搜索查询是至少一种：文本和音频的形式。访问第一语言种类的材料语料库，并且通过从第二语言品种获得的数据获得第一语言种类基础。构建了第一种语言种类的语音模型，并且基于所接受的搜索查询，采用第一种语言种类语音模型和第二种语言种类来执行音频搜索。

9. 发明授权

US08589396B2 Cross-guided data clustering based on alignment between data domains 有权
标题翻译：基于数据域之间的对齐的交叉引导数据聚类
公开(公告)号：US08589396B2
公开(公告)日：2013-11-19
申请号：US12652987
申请日：2010-01-06
申请人： Jeffrey M. Achtermann , Indrajit Bhattacharya , Kevin W. English, Jr. , Shantanu R. Godbole , Sachindra Joshi , Ashwin Srinivasan , Ashish Verma
发明人： Jeffrey M. Achtermann , Indrajit Bhattacharya , Kevin W. English, Jr. , Shantanu R. Godbole , Sachindra Joshi , Ashwin Srinivasan , Ashish Verma
IPC分类号： G06F17/30 , G06F17/27
CPC分类号： G06K9/6222 , G06K9/6224
摘要： A system and associated method for cross-guided data clustering by aligning target clusters in a target domain to source clusters in a source domain. The cross-guided clustering process takes the target domain and the source domain as inputs. A common word attribute shared by both the target domain and the source domain is a pivot vocabulary, and all other words in both domains are a non-pivot vocabulary. The non-pivot vocabulary is projected onto the pivot vocabulary to improve measurement of similarity between data items. Source centroids representing clusters in the source domain are created and projected to the pivot vocabulary. Target centroids representing clusters in the target domain are initially created by conventional clustering method and then repetitively aligned to converge with the source centroids by use of a cross-domain similarity graph that measures a respective similarity of each target centroid to each source centroid.
摘要翻译：一种用于通过将目标域中的目标集群与源域中的源集群进行对齐的交叉引导数据集群的系统和关联方法。交叉引导的聚类过程将目标域和源域作为输入。目标域和源域共享的通用字属性是一个枢轴词汇表，两个域中的所有其他单词都是一个非重要词汇。非枢纽词汇被投影到枢纽词汇表上，以改进数据项之间相似度的测量。源代码域中的聚类的源中心被创建并投影到枢纽词汇表。目标域中的聚类的目标质心最初是通过传统聚类方法创建的，然后通过使用跨域相似度图重复对齐以与源中心收敛，该跨域相似度图测量每个目标质心与每个源质心的相应相似度。

10. 发明授权

US08457967B2 Automatic evaluation of spoken fluency 有权
标题翻译：自动评价口语流利
公开(公告)号：US08457967B2
公开(公告)日：2013-06-04
申请号：US12541927
申请日：2009-08-15
申请人： Kartik Audhkhasi , Om D. Deshmukh , Kundan Kandhway , Ashish Verma
发明人： Kartik Audhkhasi , Om D. Deshmukh , Kundan Kandhway , Ashish Verma
IPC分类号： G10L15/04 , G10L15/26 , G10L15/06 , G10L13/00 , G10L21/00 , G06F17/27
CPC分类号： G10L15/26 , G09B19/04
摘要： A procedure to automatically evaluate the spoken fluency of a speaker by prompting the speaker to talk on a given topic, recording the speaker's speech to get a recorded sample of speech, and then analyzing the patterns of disfluencies in the speech to compute a numerical score to quantify the spoken fluency skills of the speakers. The numerical fluency score accounts for various prosodic and lexical features, including formant-based filled-pause detection, closely-occurring exact and inexact repeat N-grams, normalized average distance between consecutive occurrences of N-grams. The lexical features and prosodic features are combined to classify the speaker with a C-class classification and develop a rating for the speaker.
摘要翻译：一个程序，通过提示说话者在给定的主题上进行谈话，记录讲话者的语音以获得记录的语音样本，然后分析语音中的不清楚的模式以计算数字得分，自动评估讲话者的口语流畅性量化演讲者的口语流利能力。数值流利度分数考虑到各种韵律和词汇特征，包括基于共振峰的填充暂停检测，紧密发生的精确和不精确的重复N克，连续出现的N克之间的归一化平均距离。词汇特征和韵律特征相结合，将扬声器分类为C级分类，并为扬声器开发评级。

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