公开(公告)号：US20120147104A1

公开(公告)日：2012-06-14

申请号：US13391815

申请日：2009-12-23

申请人： Feng Ouyang ,  Jiedong Zheng

发明人： Feng Ouyang ,  Jiedong Zheng

IPC分类号： B41J2/175

CPC分类号： B41J2/17513

摘要： A cartridge for inkjet printer includes housing and an ink storage tank defined inside the housing. An ink outlet is defined in the bottom portion of the housing, while an air inlet and ink inlet are formed on the top portion of the housing. All of the ink outlet, air inlet and ink inlet are communicated with the ink storage tank. A filtration chamber is defined in the ink storage tank. A filtration core is provided in the filtration chamber. The chamber is communicated with a flow guiding slot disposed at one side of the ink storage tank through a filtration hole. The other end of the flow guiding slot is communicated with the ink outlet. Advantageously, bubbles genreated during operation of the cartridge can be stored in the bubble chamber of the housing, thus eliminating bad effect of the bubbles on the normal flow of the ink out of the ink outlet. On the other hand, when the ink storage tank is full of ink, the longitudinal and horizontal separation plates, pressure reduction chamber and filtration hole can effectively reduce liquid pressure, thus keeping ink pressure at the ink outlet substantailly constant, making supply of the ink more evenly, and extending the life of the cartridge. Additionally, better printing quality can be realized.

摘要翻译： 用于喷墨打印机的墨盒包括壳体和限定在壳体内部的墨水储存罐。 油墨出口被限定在壳体的底部，而进气口和油墨入口形成在壳体的顶部。 所有的墨水出口，进气口和墨水入口都与储墨罐连通。 在储墨罐中限定一个过滤室。 在过滤室中设置过滤芯。 该室通过一个过滤孔与设置在储墨罐一侧的流动引导槽连通。 导流槽的另一端与出墨口连通。 有利地，在盒的操作过程中产生的气泡可以存储在壳体的气泡室中，从而消除了气泡对油墨出口正常流动的不良影响。 另一方面，当墨水储存罐充满油墨时，纵向和横向分隔板，减压室和过滤孔可以有效地降低液体压力，从而使墨水出口处的墨水压力保持恒定，从而使墨水供应 更均匀，延长墨盒的使用寿命。 另外，可以实现更好的打印质量。

公开(公告)号：US07974583B2

公开(公告)日：2011-07-05

申请号：US11031020

申请日：2005-01-10

申请人： Patrick Duvaut ,  Feng Ouyang

发明人： Patrick Duvaut ,  Feng Ouyang

IPC分类号： H04B7/00

CPC分类号： H04L5/0044 ,  H04L5/0007 ,  H04L5/006 ,  H04L5/14 ,  H04W52/34

摘要： A technique for real-time formation of optimal power spectral density masks is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for real-time formation of optimal power spectral density masks. The method may comprise sensing line conditions in a communication medium, wherein the communication medium is capable of carrying signals in a plurality of tones. The method may also comprise determining, in real-time, one or more power spectral density masks that substantially optimize transmissions of the signals in the plurality of tones. The method may further comprise transmitting the signals in the plurality of tones based on the one or more power spectral masks.

摘要翻译： 公开了一种用于实时形成最佳功率谱密度掩模的技术。 在一个特定的示例性实施例中，该技术可以被实现为用于实时形成最佳功率谱密度掩模的方法。 该方法可以包括感测通信介质中的线路条件，其中通信介质能够承载多个音调的信号。 该方法还可以包括实时地确定基本上优化多个音调中的信号的传输的一个或多个功率谱密度掩模。 该方法还可以包括基于一个或多个功率谱掩模来发送多个音调中的信号。

公开(公告)号：US07460649B2

公开(公告)日：2008-12-02

申请号：US11035422

申请日：2005-01-14

申请人： Feng Ouyang ,  Patrick Duvaut ,  Ming Gu

发明人： Feng Ouyang ,  Patrick Duvaut ,  Ming Gu

IPC分类号： H04M1/24 ,  H04M3/08 ,  H04M3/22

CPC分类号： H04M3/305 ,  H04B3/46 ,  H04M1/24 ,  H04M3/2209

摘要： A method and apparatus for single end loop testing for DSL provisioning and maintenance provides testing of the DSL loop using digital techniques including frequency compensation, matched filtering and median filtering, to remove strong background and enhance desired signal for peak detection. The SELT system allows DSL providers to extract loop information from reflective measurements at the central office (CO) so as to determine loop capability of supporting different DSL services. The method and apparatus acquires the desired signal (the far-end echo) which is submerged in the correlated background noise (the near-end echo) by providing a process for detecting loop length and termination types with high accuracy for loops up to 12 kft for 24 AWG and up to 9 kft for 26 AWG by exploiting several digital signal processing techniques including frequency.

摘要翻译： 用于DSL供应和维护的单端环路测试的方法和装置使用包括频率补偿，匹配滤波和中值滤波的数字技术来测试DSL环路，以去除强背景并增强用于峰值检测的期望信号。 SELT系统允许DSL提供商从中心局（CO）的反射测量中提取循环信息，以确定支持不同DSL服务的循环能力。 该方法和装置通过提供用于检测环路长度和端接类型的过程，以高达12kft的环路获得淹没在相关背景噪声（近端回波）中的期望信号（远端回波） 通过利用几种数字信号处理技术（包括频率），可实现24 AWG和高达9 kft的26 AWG。

公开(公告)号：US07406126B2

公开(公告)日：2008-07-29

申请号：US10714655

申请日：2003-11-18

申请人： Patrick Duvaut ,  Ehud Langberg ,  Lujing Cai ,  Laurent Pierrugues ,  William Scholtz ,  Oliver Moreno ,  Feng Ouyang ,  Massimo Sorbara

发明人： Patrick Duvaut ,  Ehud Langberg ,  Lujing Cai ,  Laurent Pierrugues ,  William Scholtz ,  Oliver Moreno ,  Feng Ouyang ,  Massimo Sorbara

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L5/143 ,  H04L5/1438 ,  H04L27/2626 ,  H04Q2213/13039

摘要： Various embodiments for addressing the performance objectives of LDSL and examples of smart systems for LDSL are disclosed. An evaluation of the spectral compatibility of two LDSL modes based on two different downstream masks, identified herein as LDSL Wide and Narrow, is disclosed. Spectral compatibility is evaluated in accordance with existing rules. Other embodiments may further comprise determining features of upstream transmission.

摘要翻译： 公开了用于解决LDSL的性能目标的各种实施例和用于LDSL的智能系统的示例。 公开了基于两种不同下游掩模的两种LDSL模式的频谱兼容性的评估，这两种不同的下行掩码在本文中被标识为LDSL Wide和Narrow。 光谱兼容性根据现有规则进行评估。 其他实施例还可以包括确定上行传输的特征。

公开(公告)号：US20080089485A1

公开(公告)日：2008-04-17

申请号：US11865817

申请日：2007-10-02

申请人： Patrick Duvaut ,  Amitkumar Mahadevan ,  Feng Ouyang

发明人： Patrick Duvaut ,  Amitkumar Mahadevan ,  Feng Ouyang

IPC分类号： H04M1/24

CPC分类号： H04M1/24

摘要： Systems and methods for performing single-end line testing (SELT) are described. At least one embodiment includes a method for SELT to determine loop characteristics for a loop. The method for performing SELT comprises generating a test signal through a loop to be tested and receiving an echo response. The method further comprises subtracting predetermined near end echo response from the received echo to derive a far end echo response, performing time-dependent scaling on the far end echo response to compensate for loop attenuation, comparing the time-scaled far end echo response to a set of predefined templates, and providing an estimate of loop characteristics by identifying a matching template within the set of predefined templates, wherein the matching template contains information relating to loop characteristics comprising loop length and loop termination.

摘要翻译： 描述了执行单端线路测试（SELT）的系统和方法。 至少一个实施例包括用于SELT来确定循环的循环特性的方法。 用于执行SELT的方法包括通过要测试的环路产生测试信号并接收回波响应。 该方法还包括从接收到的回波中减去预定的近端回波响应以导出远端回波响应，对远端回波响应执行时间依赖的缩放以补偿环路衰减，将时间标度的远端回波响应与 一组预定义的模板，以及通过识别该组预定义模板内的匹配模板来提供循环特征的估计，其中该匹配模板包含与包括环路长度和环路终止的环路特性有关的信息。

公开(公告)号：US20050232172A1

公开(公告)日：2005-10-20

申请号：US10824611

申请日：2004-04-15

申请人： Feng Ouyang ,  Patrick Duvaut ,  Chengshu Wang

发明人： Feng Ouyang ,  Patrick Duvaut ,  Chengshu Wang

IPC分类号： H04L5/16 ,  H04L27/26

CPC分类号： H04L27/2608

摘要： A technique for dynamic bin allocation is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for dynamic bin allocation. The method may comprise obtaining link performance data based on a plurality of test transmissions between two network elements, wherein the plurality of test transmissions utilize at least one transmission mode in each of a plurality of frequency ranges. The method may also comprise determining a desired transmission scheme, wherein each of the plurality of frequency ranges is designated for at least one of the at least one transmission mode based at least in part on the link performance data. The desired transmission scheme may be determined by identifying a desired transmission mode for each of the plurality of frequency ranges, or the desired transmission scheme may be selected from a plurality of predetermined transmission schemes.

摘要翻译： 公开了一种用于动态分配箱的技术。 在一个特定的示例性实施例中，该技术可以被实现为用于动态仓分配的方法。 该方法可以包括基于两个网络元件之间的多个测试传输来获得链路性能数据，其中多个测试传输在多个频率范围的每一个中使用至少一个传输模式。 该方法还可以包括确定期望的传输方案，其中至少部分地基于链路性能数据来指定多个频率范围中的每一个针对至少一个传输模式中的至少一个。 可以通过识别多个频率范围中的每一个的期望的传输模式来确定期望的传输方案，或者可以从多个预定传输方案中选择所需的传输方案。

公开(公告)号：US20050163287A1

公开(公告)日：2005-07-28

申请号：US11035422

申请日：2005-01-14

申请人： Feng Ouyang ,  Patrick Duvaut ,  Ming Gu

发明人： Feng Ouyang ,  Patrick Duvaut ,  Ming Gu

IPC分类号： H04M1/24 ,  H04M3/30 ,  H04M3/08

CPC分类号： H04M3/305 ,  H04B3/46 ,  H04M1/24 ,  H04M3/2209

摘要： A method and apparatus for single end loop testing for DSL provisioning and maintenance provides testing of the DSL loop using digital techniques including frequency compensation, matched filtering and median filtering, to remove strong background and enhance desired signal for peak detection. The SELT system allows DSL providers to extract loop information from reflective measurements at the central office (CO) so as to determine loop capability of supporting different DSL services. The method and apparatus acquires the desired signal (the far-end echo) which is submerged in the correlated background noise (the near-end echo) by providing a process for detecting loop length and termination types with high accuracy for loops up to 12 kft for 24 AWG and up to 9 kft for 26 AWG by exploiting several digital signal processing techniques including frequency.

摘要翻译： 用于DSL供应和维护的单端环路测试的方法和装置使用包括频率补偿，匹配滤波和中值滤波的数字技术来测试DSL环路，以去除强背景并增强用于峰值检测的期望信号。 SELT系统允许DSL提供商从中心局（CO）的反射测量中提取循环信息，以确定支持不同DSL服务的循环能力。 该方法和装置通过提供用于检测环路长度和端接类型的过程，以高达12kft的环路获得淹没在相关背景噪声（近端回波）中的期望信号（远端回波） 通过利用几种数字信号处理技术（包括频率），可实现24 AWG和高达9 kft的26 AWG。

公开(公告)号：US20050152442A1

公开(公告)日：2005-07-14

申请号：US11031020

申请日：2005-01-10

申请人： Patrick Duvaut ,  Feng Ouyang

发明人： Patrick Duvaut ,  Feng Ouyang

IPC分类号： H04B1/38 ,  H04L5/16 ,  H04L27/26

CPC分类号： H04L5/0044 ,  H04L5/0007 ,  H04L5/006 ,  H04L5/14 ,  H04W52/34

摘要： A technique for real-time formation of optimal power spectral density masks is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for real- time formation of optimal power spectral density masks. The method may comprise sensing line conditions in a communication medium, wherein the communication medium is capable of carrying signals in a plurality of tones. The method may also comprise determining, in real-time, one or more power spectral density masks that substantially optimize transmissions of the signals in the plurality of tones. The method may further comprise transmitting the signals in the plurality of tones based on the one or more power spectral masks.

摘要翻译： 公开了一种用于实时形成最佳功率谱密度掩模的技术。 在一个特定的示例性实施例中，该技术可以被实现为用于实时形成最佳功率谱密度掩模的方法。 该方法可以包括感测通信介质中的线路条件，其中通信介质能够承载多个音调的信号。 该方法还可以包括实时地确定基本上优化多个音调中的信号的传输的一个或多个功率谱密度掩模。 该方法还可以包括基于一个或多个功率谱掩模来发送多个音调中的信号。

公开(公告)号：US07580379B2

公开(公告)日：2009-08-25

申请号：US10824611

申请日：2004-04-15

申请人： Feng Ouyang ,  Patrick Duvaut ,  Chengshu Wang

发明人： Feng Ouyang ,  Patrick Duvaut ,  Chengshu Wang

IPC分类号： H04J1/00

CPC分类号： H04L27/2608

摘要： A technique for dynamic bin allocation is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for dynamic bin allocation. The method may comprise obtaining link performance data based on a plurality of test transmissions between two network elements, wherein the plurality of test transmissions utilize at least one transmission mode in each of a plurality of frequency ranges. The method may also comprise determining a desired transmission scheme, wherein each of the plurality of frequency ranges is designated for at least one of the at least one transmission mode based at least in part on the link performance data. The desired transmission scheme may be determined by identifying a desired transmission mode for each of the plurality of frequency ranges, or the desired transmission scheme may be selected from a plurality of predetermined transmission schemes.

摘要翻译： 公开了一种用于动态分配箱的技术。 在一个特定的示例性实施例中，该技术可以被实现为用于动态仓分配的方法。 该方法可以包括基于两个网络元件之间的多个测试传输来获得链路性能数据，其中多个测试传输在多个频率范围的每一个中使用至少一个传输模式。 该方法还可以包括确定期望的传输方案，其中至少部分地基于链路性能数据来指定多个频率范围中的每一个针对至少一个传输模式中的至少一个。 可以通过识别多个频率范围中的每一个的期望的传输模式来确定期望的传输方案，或者可以从多个预定传输方案中选择所需的传输方案。

公开(公告)号：US20230265659A1

公开(公告)日：2023-08-24

申请号：US17676176

申请日：2022-02-20

申请人： Feng OUYANG

发明人： Feng OUYANG

IPC分类号： E04D1/00 ,  E04D1/08 ,  E04D1/26 ,  E04D1/34

CPC分类号： E04D1/2918 ,  E04D1/08 ,  E04D1/265 ,  E04D1/2916 ,  E04D1/2956 ,  E04D1/2949 ,  E04D1/34 ,  E04D2001/3423 ,  E04D2001/3426 ,  E04D2001/3447 ,  E04D2001/3458 ,  E04D2001/3467 ,  E04D2001/3497

摘要： The present disclosure provides a new design for an injection molded roof panel with multiple improvements. The panel is made from PVC-like materials via injection molding with a large standard size. It comprises laterally and longitudinally sloped watercourses and arches. A tongue at the front connects to a vertically adjacent panel's rear upper interlocking member. Interlocks at the lateral ends of the panel connect one panel to another horizontally adjacent panel. Condensed water ridges underneath the panel drain condensation to the panel's front, where it is drained with angled weep holes on the tongue. The upper surface has a non-smooth low-noise texture to prevent slips/falls and reduce noise. The roof panel is secured onto roof sheathing with nail flanges with screw holes/bosses. The design achieves improved water drainage, increased installation security and speed, improved wind resistance, increased personnel safety, reduced noise, lighter weight, lower cost, and improved lifespan.