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1. 发明申请

US20230024492A1 MULTILEVEL ELECTRIC POWER CONVERTER 有权
公开(公告)号：US20230024492A1
公开(公告)日：2023-01-26
申请号：US17787410
申请日：2020-12-21
申请人： ECOLE DE TECHNOLOGIE SUPERIEURE
发明人： Saeed ARAZM , Kamal AL-HADDAD
IPC分类号： H02M7/483 , H02M7/5387
摘要： A power converter for transforming electrical power between direct current power and alternating current power is provided, as well as related methods and systems. The power converter comprises: a half-bridge inverter, a switching cell, and a connection branch connecting the half-bridge inverter to the switching cell. The half-bridge inverter comprises: first and second switches connected in parallel, and a first capacitor connected between the first and second switches. The switching cell comprises: a first pair of switches forming a first branch, a second pair of switches and a second capacitor forming a second branch; and a third capacitor connected between the first and second branches. The connection branch is coupled to the half-bridge inverter at a first point intermediate the first capacitor and the second switch, and coupled to the switching cell at a second point intermediate the first branch and the second capacitor.

2. 发明申请

US20220276207A1 ULTRASONIC TESTING FOR DEFECT DETECTION 有权
公开(公告)号：US20220276207A1
公开(公告)日：2022-09-01
申请号：US17682268
申请日：2022-02-28
申请人： ECOLE DE TECHNOLOGIE SUPERIEURE
发明人： Pierre BELANGER , Thibault LATETE
IPC分类号： G01N29/44 , G06N3/08
摘要： The present disclosure provides methods and systems for performing ultrasonic testing. Reflected acoustic waves are obtained at a detector, the reflected acoustic waves produced by at least one insonification of a component to be tested. The reflected acoustic waves are processed to produce a representation of the component. A location of the component to be tested within the representation of the component is determined. A portion of the representation associated with the component is analyzed to detect a presence of a defect in the component to be tested. An alert indicative of the defect in the component is issued responsive to detecting the presence of the defect.

3. 发明授权

US11115750B2 System, device and method for assessing a fit quality of an earpiece 有权
公开(公告)号：US11115750B2
公开(公告)日：2021-09-07
申请号：US16626435
申请日：2018-06-26
申请人： Ecole de Technologie Superieure
发明人： Hami Monsarrat-Chanon , Jeremie Voix , Vincent Nadon , Thomas Habrant
IPC分类号： H04R5/02 , H04R1/10 , H04R3/04
摘要： A system, device and method for assessing a fit quality of an earpiece while in use in a noisy environment. The earpiece having an external microphone for capturing an outer-ear audio signal and an internal microphone for capturing an inner-ear audio signal. The fit quality being assessed by estimating a filter according to the captured inner-ear and outer-ear audio signals, and determining a fit quality according to identified coefficients of the estimated filter. A system, device and method for assessing a seal quality of an earpiece while in use in a quiet environment. The earpiece having a loudspeaker for emitting a sound stimulus towards the ear canal and an internal microphone for capturing an audio signal inside the ear canal. The seal quality being assessed by estimating a transfer function according the emitted and captured sound stimulus, and determining at least one seal-quality indicator according to a signal magnitude of the transfer function.

4. 发明授权

US10511853B2 Method and system for parallel rate-constrained motion estimation in video coding 有权
公开(公告)号：US10511853B2
公开(公告)日：2019-12-17
申请号：US15822030
申请日：2017-11-24
申请人： ECOLE DE TECHNOLOGIE SUPERIEURE
发明人： Esmaeil Hojati , Jean-Francois Franche , Stephane Coulombe , Carlos Vazquez
IPC分类号： H04N19/96 , H04N19/517 , H04N19/567 , H04N19/52 , H04N19/436
摘要： Methods and systems for parallel rate-constrained motion estimation in a video encoder are provided. Embodiments of the present invention provide a solution for the problem of the reliance upon spatial dependencies when processing parallel RCME on a frame. In order to solve this problem, embodiments of the present invention determine a list of at least two Motion Vector Predictor Candidates (MVPC), determine, in parallel for at least two of said at least two MVPCs, corresponding Motion Vector Candidates (MVC) using Rate-Constrained Motion Estimation (RCME) and determine the optimal Motion Vector (MV) among the determined MVCs based on rate distortion optimization.

5. 发明授权

US09615101B2 Method and apparatus for signal encoding producing encoded signals of high fidelity at minimal sizes 有权
公开(公告)号：US09615101B2
公开(公告)日：2017-04-04
申请号：US15140317
申请日：2016-04-27
申请人： ECOLE DE TECHNOLOGIE SUPERIEURE
发明人： Didier Joset , Stéphane Coulombe , Maged E. Beshai
IPC分类号： H04N19/196 , H04N19/102 , H04N19/124 , H04N19/132 , H04N19/136 , H04N19/146 , H04N19/154 , H04N19/164 , H04N19/189 , H04N19/85 , H04N19/40
CPC分类号： H04N19/196 , H04N19/102 , H04N19/124 , H04N19/132 , H04N19/136 , H04N19/146 , H04N19/154 , H04N19/164 , H04N19/189 , H04N19/40 , H04N19/85
摘要： Methods and apparatus for determining encoding parameters of an encoder or a transcoder which yield an encoded signal of optimal measurable properties are disclosed. For a video signal, the encoding parameters may include quantization granularity, a measure of display resolution, and a frame rate. The measurable properties of an encoded signal may include a fidelity index, a relative size, and a relative flow rate. Reference data records quantifying properties of sample signals encoded according to experimental sets of encoding parameters are used to define parameters of conjectured analytical functions characterizing the encoding or transcoding functions. The analytical functions are then used to generate granular tables of estimated measures of encoded-signal properties. A fast search mechanism relies on the granular tables, together with sorted arrangements of the granular tables, to determine, in real-time, preferred encoding parameters for multimedia data streams received at an encoder or a transcoder.

6. 发明授权

US09247264B2 Method and system for parallel encoding of a video 有权
标题翻译：视频并行编码的方法和系统
公开(公告)号：US09247264B2
公开(公告)日：2016-01-26
申请号：US13309298
申请日：2011-12-01
申请人： Jean-Francois Franche , Stephane Coulombe
发明人： Jean-Francois Franche , Stephane Coulombe
IPC分类号： H04N7/26 , H04N19/436 , H04N19/52 , H04N19/172 , H04N19/61 , H04N19/174 , H04N19/43
CPC分类号： H04N19/436 , H04N19/172 , H04N19/174 , H04N19/43 , H04N19/52 , H04N19/61
摘要： A method and system for parallel encoding of frames in a video are described, exploiting parallel processing at both frame and slice levels. One or more slices are processed in a preceding frame by one or more cores in a multi-core processor, and a slice is processed in a succeeding frame provided at least one of said one or more cores in the multi-core processor is available for processing; and the processing of a slice from said one or more slices at same physical location in the preceding input frame has been completed, the processing of frames and slices in the preceding and succeeding frames being performed at least partially in parallel. A significant speedup in comparison to the sequential encoding approach is achieved while maintaining high visual quality for the output video. A corresponding system for parallel encoding of a video is also provided.
摘要翻译：描述了用于视频中的帧的并行编码的方法和系统，利用帧和分片级的并行处理。在多核处理器中的一个或多个核在前一帧中处理一个或多个片，并且在随后的帧中处理片，所述多核处理器中的所述一个或多个核中的至少一个可用于加工; 并且已经完成了来自前一输入帧中相同物理位置处的所述一个或多个片的切片的处理，所述前一帧和后续帧中的帧和片段的处理至少部分地并行执行。与连续编码方法相比，实现了对输出视频的高视觉质量的显着加速。还提供了用于并行编码视频的对应系统。

7. 发明申请

US20150139302A9 METHOD AND APPARATUS FOR SIGNAL ENCODING REALIZING OPTIMAL FIDELITY 有权
标题翻译：用于信号编码的方法和装置实现最佳模糊度
公开(公告)号：US20150139302A9
公开(公告)日：2015-05-21
申请号：US14217007
申请日：2014-03-17
申请人： ECOLE DE TECHNOLOGIE SUPERIEURE
发明人： Didier JOSET , Stéphane COULOMBE , Maged E. BESHAI
IPC分类号： H04N19/134 , H04N19/124
CPC分类号： H04N19/146 , H04N19/102 , H04N19/154 , H04N19/164 , H04N19/196 , H04N19/40 , H04N19/85 , H04N19/90
摘要： Methods of optimal encoding of signals to be compatible with characteristics of target receivers while meeting constraints pertinent to sizes of encoded signals or capacities of paths communicating signals to the target receivers are disclosed. The methods are based on analytical modeling of the encoding process guided by experimental data relating measured performance indicators of encoded signals of diverse classifications to respective encoding parameters. A computationally-efficient technique is devised to determine optimal encoding parameters based on pre-processed data derived from the analytical models. The methods may be implemented at an encoder of original signals or a transcoder of pre-encoded signals.
摘要翻译：公开了对与目标接收机的特性兼容的信号进行最佳编码的方法，同时满足与编码信号的大小有关的限制或者向目标接收机传送信号的路径的容量。这些方法基于编码过程的分析建模，该实验由相关编码参数的不同分类编码信号的测量性能指标的实验数据指导。基于从分析模型导出的预处理数据，设计了一种计算有效的技术来确定最佳编码参数。这些方法可以在原始信号的编码器或预编码信号的代码转换器中实现。

8. 发明授权

US08660364B2 Method and system for determining a quality measure for an image using multi-level decomposition of images 有权
标题翻译：用于使用图像的多级分解确定图像的质量测量的方法和系统
公开(公告)号：US08660364B2
公开(公告)日：2014-02-25
申请号：US13938181
申请日：2013-07-09
申请人： Ecole De Technologie Superieure
发明人： Soroosh Rezazadeh , Stephane Coulombe
IPC分类号： G06K9/48
CPC分类号： G06K9/6201 , G06T7/0002 , G06T2207/20064 , G06T2207/30168
摘要： Method and system for determining a measure of quality for images by using multi-level decomposition are presented. Multi-level decomposition of images is performed in the wavelet domain producing subbands at each level of decomposition. Aggregation of subbands is performed across multiple levels to produce an accurate measure of image quality. By aggregating only selected subbands the computational complexity of the method is greatly reduced.
摘要翻译：提出了通过使用多级分解确定图像质量度量的方法和系统。在小波域中执行图像的多级分解，在每个分解级别产生子带。在多个级别上执行子带的聚合，以产生图像质量的准确度量。通过聚合所选择的子带，该方法的计算复杂度大大降低。

9. 发明授权

US08494056B2 Method and system for efficient video transcoding 有权
标题翻译：用于高效视频转码的方法和系统
公开(公告)号：US08494056B2
公开(公告)日：2013-07-23
申请号：US12633050
申请日：2009-12-08
申请人： Isabelle Metoevi , Stéphane Coulombe
发明人： Isabelle Metoevi , Stéphane Coulombe
IPC分类号： H04N7/26
CPC分类号： H04N19/00472 , H04N19/107 , H04N19/109 , H04N19/139 , H04N19/14 , H04N19/15 , H04N19/159 , H04N19/176 , H04N19/40 , H04N19/593 , H04N19/61
摘要： A method and system for an efficient transcoding of a sequence of input images in a first format to a sequence of output images in a second format are described. The method utilizes the encoding block mode, the motion vectors and the residual information extracted during the decoding of the input image that are effectively reused to select an optimal transcoding block mode and to perform selective refinement of motion vectors. A corresponding system for video transcoding is also provided.
摘要翻译：描述了以第一格式将输入图像序列有效地转码为第二格式的输出图像序列的方法和系统。该方法利用编码块模式，在输入图像的解码期间提取的运动矢量和残留信息被有效地重用以选择最佳代码转换模块并执行运动矢量的选择性细化。还提供了用于视频转码的相应系统。

10. 发明授权

US08364092B2 Balanced active and passive duplexers 有权
标题翻译：平衡有源和无源双工器
公开(公告)号：US08364092B2
公开(公告)日：2013-01-29
申请号：US11403189
申请日：2006-04-13
申请人： Ammar B. Kouki , Christian Talbot
发明人： Ammar B. Kouki , Christian Talbot
IPC分类号： H04B1/46
CPC分类号： H04B1/525
摘要： An active cancellation unit is disclosed for improving the noise cancellation between a transmitter and a receiver which are connected to an antenna using a duplexer, the unit comprising a coupler sampling a signal to transmit provided by the transmitter, a cancellation duplexer having characteristics similar to the duplexer and receiving the sampled signal to provide a simulated signal and an active component receiving the simulated signal and providing an amplified signal having a phase 180 degree shifted with respect to the simulated signal; and a coupler for injecting the simulated signal at the receiver.
摘要翻译：公开了一种主动取消单元，用于改善使用双工器连接到天线的发射机和接收机之间的噪声抵消，该单元包括对由发射机提供的要发射的信号进行采样的耦合器，具有类似于并且接收采样信号以提供模拟信号和有源分量接收模拟信号并提供相对于模拟信号相移180度相位的放大信号; 以及用于在接收器处注入模拟信号的耦合器。

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