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1. 发明授权

US09628063B2 Asymmetrically-switched modulation scheme 有权
公开(公告)号：US09628063B2
公开(公告)日：2017-04-18
申请号：US13966155
申请日：2013-08-13
申请人： Dan Shen , Frank Cheng , Lingli Zhang
发明人： Dan Shen , Frank Cheng , Lingli Zhang
IPC分类号： H03K7/00 , H03F3/183 , H03F3/217 , H03K7/06 , H03K7/08
CPC分类号： H03K7/00 , H03F3/183 , H03F3/2173 , H03K7/06 , H03K7/08 , Y10T307/25
摘要： An asymmetric modulation scheme may be used to drive two output nodes coupled to a load. The asymmetric modulation scheme may be one-sided such that the switching rate of a first output node is lower than the switching rate of a second output node. The first output node may be switched only to change a direction of current between the first output node and the second output node, while the second output node is switched to convey the information of an input signal. The asymmetric modulation scheme may be used to drive a speaker to reduce noise at the first output node to improve accuracy of current monitoring through the speaker by a current monitor coupled at the first output node.

2. 发明申请

US20140294206A1 ASYMMETRICALLY-SWITCHED MODULATION SCHEME 有权
标题翻译：非对称切换调制方案
公开(公告)号：US20140294206A1
公开(公告)日：2014-10-02
申请号：US13966155
申请日：2013-08-13
申请人： Dan Shen , Frank Cheng , Lingli Zhang
发明人： Dan Shen , Frank Cheng , Lingli Zhang
IPC分类号： H03K7/00 , H03K7/06 , H03K7/08 , H03F3/181
CPC分类号： H03K7/00 , H03F3/183 , H03F3/2173 , H03K7/06 , H03K7/08 , Y10T307/25
摘要： An asymmetric modulation scheme may be used to drive two output nodes coupled to a load. The asymmetric modulation scheme may be one-sided such that the switching rate of a first output node is lower than the switching rate of a second output node. The first output node may be switched only to change a direction of current between the first output node and the second output node, while the second output node is switched to convey the information of an input signal. The asymmetric modulation scheme may be used to drive a speaker to reduce noise at the first output node to improve accuracy of current monitoring through the speaker by a current monitor coupled at the first output node.
摘要翻译：可以使用非对称调制方案来驱动耦合到负载的两个输出节点。非对称调制方案可以是单向的，使得第一输出节点的切换速率低于第二输出节点的切换速率。第一输出节点可以仅被切换以改变第一输出节点和第二输出节点之间的电流方向，而第二输出节点被切换以传送输入信号的信息。可以使用非对称调制方案来驱动扬声器以减少第一输出节点处的噪声，以通过耦合在第一输出节点处的电流监视器来提高通过扬声器的电流监视的精度。

3. 发明授权

US08093951B1 Pulse-width modulated (PWM) audio power amplifier having output signal magnitude controlled pulse voltage and switching frequency 有权
标题翻译：脉冲宽度调制（PWM）音频功率放大器具有输出信号幅值受控的脉冲电压和开关频率
公开(公告)号：US08093951B1
公开(公告)日：2012-01-10
申请号：US12568667
申请日：2009-09-28
申请人： Lingli Zhang , Dan Shen , Johann Gaboriau , Eric J. Swanson
发明人： Lingli Zhang , Dan Shen , Johann Gaboriau , Eric J. Swanson
IPC分类号： H03F3/217 , H03F3/04
CPC分类号： H03F3/217 , H03F2200/03 , H03F2200/114 , H03F2200/351
摘要： An audio switching power amplifier having an output pulse voltage selected in conformity with an indication of the output signal amplitude provides lower electromagnetic interference (EMI) in class-D amplifier implementations, in particular, in inductor-less designs. The output pulse voltage may be selected by providing multiple switching circuits, such as half or fully bridge switches, with each switching circuit connected to a different power supply. One of the switching circuits is activated by the switching controller, while the others are disabled, providing selection of the output pulse voltage. Selection of a lower pulse voltage, when the maximum voltage is not required, reduces the generated EMI. The switching frequency of the class-D amplifier may also be controlled in conformity with the output signal amplitude, so that at higher output levels a lower switching rate is selected, reducing the generated EMI.
摘要翻译：具有根据输出信号幅度的指示选择的输出脉冲电压的音频开关功率放大器在D类放大器实现中尤其是在无电感设计中提供较低的电磁干扰（EMI）。可以通过提供多个开关电路（例如半桥或全桥开关）来选择输出脉冲电压，每个开关电路连接到不同的电源。其中一个开关电路由开关控制器激活，而其他开关电路被禁用，提供输出脉冲电压的选择。当不需要最大电压时，选择较低的脉冲电压可以减少产生的EMI。 D类放大器的开关频率也可以根据输出信号幅度进行控制，从而在较高的输出电平下选择较低的开关速率，从而减少产生的EMI。

4. 发明授权

US08176032B2 System and method for automatically publishing data items associated with an event 有权
标题翻译：自动发布与事件相关的数据项的系统和方法
公开(公告)号：US08176032B2
公开(公告)日：2012-05-08
申请号：US12604265
申请日：2009-10-22
申请人： Dan Shen , Xiaodi Zhang , Qiang Wang , Helen Hang Ye , Jin Yu Lou
发明人： Dan Shen , Xiaodi Zhang , Qiang Wang , Helen Hang Ye , Jin Yu Lou
IPC分类号： G06F7/00
CPC分类号： G06F17/30643 , G06F17/30663 , G06F17/30713 , G06Q30/0631
摘要： Systems and methods are disclosed to automatically publish data items associated with a news event. In one example embodiment, a method comprises monitoring search queries associated with a search query category, detecting a change in a search request frequency associated with the search query category with respect to a baseline frequency, determining an event associated with the search query category, identifying one or more data items associated with the event, and generating a visual representation of a relationship between the one or more data items and the event. The search query category may be associated with at least one search term a baseline frequency.
摘要翻译：公开了系统和方法来自动发布与新闻事件相关联的数据项。在一个示例实施例中，一种方法包括监视与搜索查询类别相关联的搜索查询，检测与搜索查询类别相关的搜索请求频率相对于基线频率的变化，确定与搜索查询类别相关联的事件，识别与事件相关联的一个或多个数据项，以及生成一个或多个数据项与事件之间的关系的可视表示。搜索查询类别可以与至少一个搜索项相关联并且与基线频率相关联。

5. 发明申请

US20130204730A1 MARKETPLACE LISTING ANALYSIS SYSTEMS AND METHODS 审中-公开
标题翻译：市场分析系统和方法
公开(公告)号：US20130204730A1
公开(公告)日：2013-08-08
申请号：US13714932
申请日：2012-12-14
申请人： Johnson Wang , Shen Huang , Dan Shen
发明人： Johnson Wang , Shen Huang , Dan Shen
IPC分类号： G06Q30/06
CPC分类号： G06Q30/0601 , G06Q30/00 , G06Q30/0641
摘要： One example embodiment relates to a method that comprises receiving marketplace listing information from a user, the marketplace listing information including a listing title, and accessing a plurality of character patterns for attracting attention to marketplace listings. The method includes analyzing, using one or more processors, the listing title to identify at least one of the plurality of character patterns in the listing title. A request for a new listing title is generated based on identifying at least one of the plurality of character patterns in the listing title.
摘要翻译：一个示例性实施例涉及一种方法，其包括从用户接收市场列表信息，所述市场列表信息包括列表标题，以及访问多个字符模式以吸引对市场列表的关注。该方法包括使用一个或多个处理器分析列表标题来标识列表标题中的多个字符模式中的至少一个。基于识别列表标题中的多个字符模式中的至少一个来生成对新的列表标题的请求。

6. 发明申请

US20120197752A1 SYSTEM AND METHOD FOR AUTOMATICALLY PUBLISHING DATA ITEMS ASSOCIATED WITH AN EVENT 有权
标题翻译：用于自动发布与事件相关的数据项的系统和方法
公开(公告)号：US20120197752A1
公开(公告)日：2012-08-02
申请号：US13440865
申请日：2012-04-05
申请人： Dan Shen , Xiaodi Zhang , Qiang Wang , Helen Hang Ye , Jin Yu Lou
发明人： Dan Shen , Xiaodi Zhang , Qiang Wang , Helen Hang Ye , Jin Yu Lou
IPC分类号： G06F17/30 , G06Q30/00
CPC分类号： G06F17/30643 , G06F17/30663 , G06F17/30713 , G06Q30/0631
摘要： Systems and methods are disclosed to automatically publish data items associated with a news event. In one embodiment, a method comprises determining, using one or more processors, an event of a plurality of events as associated with a heightened user interest, identifying one or more listings from a plurality of listings as matching the event associated with the heightened user interest, and presenting a visual representation of a relationship between the event and the one or more listings such that the one or more listings are displayed as visually related to the event.
摘要翻译：公开了系统和方法来自动发布与新闻事件相关联的数据项。在一个实施例中，一种方法包括使用一个或多个处理器来确定与更高的用户兴趣相关联的多个事件的事件，从多个列表中识别一个或多个列表以匹配与提高的用户兴趣相关联的事件并且呈现事件和一个或多个列表之间的关系的视觉表示，使得一个或多个列表被显示为与该事件视觉相关。

7. 发明申请

US20110113027A1 DETECTING COMPETITIVE PRODUCT REVIEWS 有权
标题翻译：检测竞争产品评论
公开(公告)号：US20110113027A1
公开(公告)日：2011-05-12
申请号：US12614164
申请日：2009-11-06
申请人： Dan Shen , Shen Huang , Yongzheng Zhang , Catherine Baudin , Olang Wang
发明人： Dan Shen , Shen Huang , Yongzheng Zhang , Catherine Baudin , Olang Wang
IPC分类号： G06F17/30 , G06F17/27
CPC分类号： G06Q30/0282 , G06F17/248
摘要： One embodiment provides a system for recommending products. The system may include a search engine to retrieve, from a collection of product reviews, product review results using at least two input product names. The system may also include a template builder to build comparative sentence templates to define relationships between at least two product names, in which each comparative sentence template has a weight as a function of the defined relationship, and the search engine extracts one or more snippets matching at least one of the comparative sentence templates within each product review result. The system may further include a review ranking device to rank the product review search results based on the one or more extracted snippets, in which each snippet has a same weight as its matched comparative sentence template.
摘要翻译：一个实施例提供了一种用于推荐产品的系统。系统可以包括搜索引擎，以从产品评论的集合中检索使用至少两个输入产品名称的产品评论结果。系统还可以包括模板构建器以构建比较语句模板以定义至少两个产品名称之间的关系，其中每个比较语句模板具有作为定义的关系的函数的权重，并且搜索引擎提取匹配的一个或多个片段每个产品评论结果中的至少一个比较句子模板。该系统可以进一步包括审查排名装置，以基于一个或多个提取的片段对产品评论搜索结果进行排名，其中每个片段与其匹配的比较文本模板具有相同的权重。

8. 发明申请

US20110078167A1 SYSTEM AND METHOD FOR TOPIC EXTRACTION AND OPINION MINING 有权
标题翻译：用于主题提取和意见采矿的系统和方法
公开(公告)号：US20110078167A1
公开(公告)日：2011-03-31
申请号：US12568583
申请日：2009-09-28
申请人： Neelakantan Sundaresan , Yongzheng Zhang , Catherine Baudin , Dan Shen , Shen Huang
发明人： Neelakantan Sundaresan , Yongzheng Zhang , Catherine Baudin , Dan Shen , Shen Huang
IPC分类号： G06F17/30
CPC分类号： G06F17/30011 , G06F17/2785 , G06F17/30253 , G06F17/30675 , G06F17/30684 , G06F17/30731 , G06Q10/00 , G06Q30/00
摘要： Methods, apparatus, and systems to determine a niche market of items or services, the first phase of which identifies a gap between demand and supply for a set of items. Session logs may be evaluated to compare transactions involving a specific item to those of a larger group of items. The resultant information identifies areas of high demand, but with low availability. The niche market information may be provided as direct merchandising items for sellers. In one example, the method generates niche market item web pages in specific categories. Additional methods, apparatus, and systems are disclosed.
摘要翻译：确定项目或服务的利基市场的方法，设备和系统，其第一阶段确定一组项目的供需之间的差距。可以评估会话日志以将涉及特定项目的事务与较大组项目的事务进行比较。所得信息确定需求高的地区，但可用性低。利基市场信息可以作为卖家的直销商品提供。在一个示例中，该方法在特定类别中生成利基市场项目网页。公开了附加的方法，装置和系统。

9. 发明授权

US09495442B2 System and method for automatically publishing data items associated with an event 有权
标题翻译：自动发布与事件相关的数据项的系统和方法
公开(公告)号：US09495442B2
公开(公告)日：2016-11-15
申请号：US13440865
申请日：2012-04-05
申请人： Dan Shen , Xiaodi Zhang , Qiang Wang , Helen Hang Ye , JinYu Lou
发明人： Dan Shen , Xiaodi Zhang , Qiang Wang , Helen Hang Ye , JinYu Lou
IPC分类号： G06F17/30 , G06Q30/06
CPC分类号： G06F17/30643 , G06F17/30663 , G06F17/30713 , G06Q30/0631
摘要： Systems and methods are disclosed to automatically publish data items associated with a news event. In one embodiment, a method comprises determining, using one or more processors, an event of a plurality of events as associated with a heightened user interest, identifying one or more listings from a plurality of listings as matching the event associated with the heightened user interest, and presenting a visual representation of a relationship between the event and the one or more listings such that the one or more listings are displayed as visually related to the event.
摘要翻译：公开了系统和方法来自动发布与新闻事件相关联的数据项。在一个实施例中，一种方法包括使用一个或多个处理器来确定与更高的用户兴趣相关联的多个事件的事件，从多个列表中识别一个或多个列表以匹配与提高的用户兴趣相关联的事件并且呈现事件和一个或多个列表之间的关系的视觉表示，使得一个或多个列表被显示为与该事件视觉相关。

10. 发明授权

US08533208B2 System and method for topic extraction and opinion mining 有权
标题翻译：主题提取和意见挖掘的系统和方法
公开(公告)号：US08533208B2
公开(公告)日：2013-09-10
申请号：US12568583
申请日：2009-09-28
申请人： Neelakantan Sundaresan , Yongzheng Zhang , Catherine Baudin , Dan Shen , Shen Huang
发明人： Neelakantan Sundaresan , Yongzheng Zhang , Catherine Baudin , Dan Shen , Shen Huang
IPC分类号： G06F17/20 , G06F17/30
CPC分类号： G06F17/30011 , G06F17/2785 , G06F17/30253 , G06F17/30675 , G06F17/30684 , G06F17/30731 , G06Q10/00 , G06Q30/00
摘要： Methods, apparatus, and systems to determine a niche market of items or services, the first phase of which identifies a gap between demand and supply for a set of items. Session logs may be evaluated to compare transactions involving a specific item to those of a larger group of items. The resultant information identifies areas of high demand, but with low availability. The niche market information may be provided as direct merchandising items for sellers. In one example, the method generates niche market item web pages in specific categories. Additional methods, apparatus, and systems are disclosed.
摘要翻译：确定项目或服务的利基市场的方法，设备和系统，其第一阶段确定一组项目的供需之间的差距。可以评估会话日志以将涉及特定项目的事务与较大组项目的事务进行比较。所得信息确定需求高的地区，但可用性低。利基市场信息可以作为卖家的直销商品提供。在一个示例中，该方法在特定类别中生成利基市场项目网页。公开了附加的方法，装置和系统。

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