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公开(公告)号：US20160359736A1
公开(公告)日：2016-12-08
申请号：US15240232
申请日：2016-08-18
发明人： Kai Qi , Bailin Wen , Fengwei Zhang
IPC分类号： H04L12/741 , H04L12/26 , H04L12/703
摘要： A data packet forwarding solution, which relates to the field of network transmission. A virtual switch in the solution saves a flow entry as an aging flow entry deleted from a flow table in a switch, and receives a reporting data packet generated according to a forwarding data packet when the forwarding data packet fails to match each flow entry in the flow table in the switch and a secure channel between the switch and the controller is faulty, delivers an aging flow entry matching the reporting data packet from an aging flow table to the switch, where the aging flow table includes one or more flow entries that are deleted as aging flow entries from a flow table in the switch.
摘要翻译： 一种涉及网络传输领域的数据包转发解决方案。 解决方案中的虚拟交换机将流入口作为从交换机的流表中删除的老化流入口保存，并且当转发数据包未能匹配每个流入口时，接收根据转发数据包生成的报告数据包 交换机中的流表和交换机与控制器之间的安全通道故障，将与老化流表对应的报告数据包的老化流入口传递给交换机，老化流表包括一个或多个流条目， 从交换机的流表中删除作为老化流条目。
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公开(公告)号：US09516260B2
公开(公告)日：2016-12-06
申请号：US14601722
申请日：2015-01-21
发明人： Hai Chen , Fengwei Zhang
CPC分类号： H04N7/012 , H04N7/0125 , H04N7/0142 , H04N7/0157 , H04N9/78
摘要： A video processing method and apparatus, which relate to the field of multimedia, and the method includes acquiring, by an video processing apparatus, two field images of an interlaced frame image in an interlaced video; performing temporal deinterlacing on either field image in the two field images to obtain a temporal virtual field image, and performing spatial deinterlacing on the either field image to obtain a spatial virtual field image; performing directional combing detection on the temporal virtual field image along a preset candidate combing detection direction with reference to the other field image in the interlaced frame image, to determine whether combing exists in the temporal virtual field image; and according to this, selecting the temporal virtual field image or the spatial virtual field image to be fused with the other field image to generate a new image.
摘要翻译： 涉及多媒体领域的视频处理方法和装置，该方法包括：通过视频处理装置获取隔行视频中的隔行帧图像的两个场图像; 对所述两个场图像中的任一场图像执行时间去隔行扫描以获得时间虚拟场图像，以及对所述场图像执行空间去隔行扫描以获得空间虚拟场图像; 参照所述隔行扫描帧图像中的其他场图像，沿着预设的候选组合检测方向对所述时间虚拟场图像进行定向组合检测，以确定是否存在所述时间虚拟场图像中的组合; 并且根据此，选择要与其他场图像融合的时间虚拟场图像或空间虚拟场图像以生成新图像。
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公开(公告)号：US10200289B2
公开(公告)日：2019-02-05
申请号：US15425663
申请日：2017-02-06
发明人： Quancai Li , Jianyao Liang , Fengwei Zhang
IPC分类号： H04L12/851 , H04L12/721
摘要： A method executed by a control device in a software defined network is disclosed. According to the method, after establishing a control channel with a switching device, the control device obtains an identifier of the control channel. Then, the control device generates a flow entry, where the flow entry includes a match field and the identifier of the control channel. Further, the control device sends the flow entry to the switching device, where the flow entry is used to instruct the switching device to send, to the control device using the control channel represented by the identifier of the control channel, a data packet that matches the match field. Hence, classification of a new flow is completed on a switching device side.
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公开(公告)号：US09721330B2
公开(公告)日：2017-08-01
申请号：US15143190
申请日：2016-04-29
发明人： Hai Chen , Fengwei Zhang
IPC分类号： G06T5/00 , H04N5/14 , H04N5/213 , H04N19/117
CPC分类号： G06T5/002 , G06T2207/20021 , G06T2207/20182 , H04N5/145 , H04N5/213 , H04N19/117
摘要： Determining of still/movement may be performed with reference to quantization noise of a first section to which a first pixel belongs, and for different results of determining of whether the first pixel is in a movement area or a still area, different frame difference thresholds applicable to the movement area and the still area are separately set, and different frame difference calculation manners are used, different blending coefficients applicable to the movement area and the still area are selected according to the different frame difference thresholds applicable to the movement area and the still area and the frame difference calculation manners, and a noise reduction blending manner is selected according to the different blending coefficients applicable to the movement area and the still area, the frame difference calculation manners, and a pixel value of the first pixel in a current frame.
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公开(公告)号：US10461986B2
公开(公告)日：2019-10-29
申请号：US15700174
申请日：2017-09-10
发明人： Fengwei Zhang , Weifeng Shen , Qiang Feng
IPC分类号： H04L29/06
摘要： A data transmission method in software-defined networking (SDN) environment using transmission control protocol (TCP). An application server sends a transmission resource allocation request to a controller. The request carries an address of a sending device and an address of a receiving device. The controller determines a first transmission path and a second transmission path between the sending device and the receiving device according to the request. The first transmission path is used by the sending device to transmit data to the receiving device, and the second transmission path is used by the receiving device to transmit an acknowledgment to the sending device. The controller sends a transmission resource allocation response to the application server. The application server determines, according to the response, an initial value of a transmit window for transmitting data. The sending device transmits the data to the receiving device according to the transmit window.
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公开(公告)号：US20170373915A1
公开(公告)日：2017-12-28
申请号：US15700174
申请日：2017-09-10
发明人： Fengwei Zhang , Weifeng Shen , Qiang Feng
IPC分类号： H04L29/06
CPC分类号： H04L29/06136 , H04L69/163 , H04L69/166
摘要： A data transmission method in software-defined networking (SDN) environment using transmission control protocol (TCP). An application server sends a transmission resource allocation request to a controller. The request carries an address of a sending device and an address of a receiving device. The controller determines a first transmission path and a second transmission path between the sending device and the receiving device according to the request. The first transmission path is used by the sending device to transmit data to the receiving device, and the second transmission path is used by the receiving device to transmit an acknowledgment to the sending device. The controller sends a transmission resource allocation response to the application server. The application server determines, according to the response, an initial value of a transmit window for transmitting data. The sending device transmits the data to the receiving device according to the transmit window.
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公开(公告)号：US20170149671A1
公开(公告)日：2017-05-25
申请号：US15425663
申请日：2017-02-06
发明人： Quancai Li , Jianyao Liang , Fengwei Zhang
IPC分类号： H04L12/851 , H04L12/721
CPC分类号： H04L47/2441 , H04L45/38 , H04L47/2483
摘要： A method executed by a control device in a software defined network is disclosed. According to the method, after establishing a control channel with a switching device, the control device obtains an identifier of the control channel. Then, the control device generates a flow entry, where the flow entry includes a match field and the identifier of the control channel. Further, the control device sends the flow entry to the switching device, where the flow entry is used to instruct the switching device to send, to the control device using the control channel represented by the identifier of the control channel, a data packet that matches the match field. Hence, classification of a new flow is completed on a switching device side.
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公开(公告)号：US20150208025A1
公开(公告)日：2015-07-23
申请号：US14601722
申请日：2015-01-21
发明人： Hai Chen , Fengwei Zhang
CPC分类号： H04N7/012 , H04N7/0125 , H04N7/0142 , H04N7/0157 , H04N9/78
摘要： A video processing method and apparatus, which relate to the field of multimedia, and the method includes acquiring, by an video processing apparatus, two field images of an interlaced frame image in an interlaced video; performing temporal deinterlacing on either field image in the two field images to obtain a temporal virtual field image, and performing spatial deinterlacing on the either field image to obtain a spatial virtual field image; performing directional combing detection on the temporal virtual field image along a preset candidate combing detection direction with reference to the other field image in the interlaced frame image, to determine whether combing exists in the temporal virtual field image; and according to this, selecting the temporal virtual field image or the spatial virtual field image to be fused with the other field image to generate a new image.
摘要翻译： 涉及多媒体领域的视频处理方法和装置，该方法包括：通过视频处理装置获取隔行视频中的隔行帧图像的两个场图像; 对所述两个场图像中的任一场图像执行时间去隔行扫描以获得时间虚拟场图像，以及对所述场图像执行空间去隔行扫描以获得空间虚拟场图像; 参照所述隔行扫描帧图像中的其他场图像，沿着预设的候选组合检测方向对所述时间虚拟场图像进行定向组合检测，以确定是否存在所述时间虚拟场图像中的组合; 并且根据此，选择要与其他场图像融合的时间虚拟场图像或空间虚拟场图像以生成新图像。
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公开(公告)号：US10764195B2
公开(公告)日：2020-09-01
申请号：US16189356
申请日：2018-11-13
发明人： Quancai Li , Jianyao Liang , Fengwei Zhang
IPC分类号： H04L12/851 , H04L12/721
摘要： A method executed by a control device in a software defined network where, according to the method, after establishing a control channel with a switching device, the control device obtains an identifier of the control channel. Then, the control device generates a flow entry, where the flow entry includes a match field and the identifier of the control channel. Further, the control device sends the flow entry to the switching device, where the flow entry is used to instruct the switching device to send, to the control device using the control channel represented by the identifier of the control channel, a data packet that matches the match field. Hence, classification of a new flow is completed on a switching device side.
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公开(公告)号：US20190081901A1
公开(公告)日：2019-03-14
申请号：US16189356
申请日：2018-11-13
发明人： Quancai Li , Jianyao Liang , Fengwei Zhang
IPC分类号： H04L12/851 , H04L12/721
摘要： A method executed by a control device in a software defined network where, according to the method, after establishing a control channel with a switching device, the control device obtains an identifier of the control channel. Then, the control device generates a flow entry, where the flow entry includes a match field and the identifier of the control channel. Further, the control device sends the flow entry to the switching device, where the flow entry is used to instruct the switching device to send, to the control device using the control channel represented by the identifier of the control channel, a data packet that matches the match field. Hence, classification of a new flow is completed on a switching device side.
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