Patents by Inventor Ning Liao
Ning Liao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140119460Abstract: Because of the encoding, decoding, and/or transmitting characteristic, the blocks affected by packet defect usually gather in a small spatial/temporal area. The viewers perception of each affected block will influence by other affected block in this small area. The invention proposes using processing means for clustering blocks affected by the packet loss into at least one cluster, for using at least one of spatial and temporal characteristics of the at least one cluster for determining a visibility value of the at least one cluster, for classifying the at least one cluster as belonging into one of at least two different class candidates, wherein each class candidate is associated with a different weight; for weighting the determined visibility value with the weight associated with the class of the at least one cluster, and for assessing the degradation of the video using a sum of the weighted visibility value.Type: ApplicationFiled: June 24, 2011Publication date: May 1, 2014Applicant: THOMSON LICENSINGInventors: Xiao Dong Gu, Ning Liao, Zhibo Chen
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Patent number: 8694846Abstract: The present invention provides a scalable and reliable feedback suppression method for receiving and transmitting data block. The method comprises receiving at least one initial data packet of the data block which is sent by the transmitter to the multicast group of receivers; and sending at least one NAK packet indicating packet loss to the transmitter by at least one receiver of the multicast group, wherein the at least one NAK packet is sent in a single uplink time slot dedicated to said multicast group of receivers, and wherein the NAK packet is identical for all receivers of said multicast group.Type: GrantFiled: August 27, 2009Date of Patent: April 8, 2014Assignee: Thomson LicensingInventors: Jian Feng Chen, Ning Liao, Jun Li
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Publication number: 20130262554Abstract: A method and an apparatus for managing content distribution over multiple terminal devices in collaborative media system are provided. In the collaborative media system, a first media data is transmitted over a first channel path to a first media terminal and a second media data relevant to the first media data is transmitted over a second channel to a second media terminal. The method comprises: detecting a quality of the first media data on the first channel path and that of the second media data on the second channel path; upon detection the quality of the first media data being lower than a first predetermined value and that of the second media data being greater than a second predetermined value, transmitting the second media data over the second channel path, instead of the first media data over the first channel path, to the first media terminal (S204).Type: ApplicationFiled: December 7, 2010Publication date: October 3, 2013Applicant: THOMSON LICENSINGInventors: Jianfeng Chen, Ning Liao, Xiao Jun Ma
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Publication number: 20130223208Abstract: The present invention provides a QoE (Quality of Experience) management solution, wherein QoE feedback is used to optimize the usage of QoS provisioning techniques, thus improving the utilization efficiency of network resources. According to one aspect of the invention, a method for QoE management for a network service provided to a user device, the method comprising: displaying a user interface on the user device for a user to input an expected QoE value of the network service; receiving the expected QoE value of the network service from the user; evaluating an objective QoE value of the network service as a function of network QoS parameters; and adjusting the QoS parameters of the network service if the objective QoE value is less than the expected QoE value.Type: ApplicationFiled: November 1, 2010Publication date: August 29, 2013Applicant: Thomson LicensingInventors: Ning Liao, Zhi Bo Chen, Xian Lei Wang
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Patent number: 8520702Abstract: A method for providing a service comprising a plurality of coding layers in a communication network is provided, and wherein each one of said plurality of layers is associated with a unique identifier, the method uses a single message containing necessary information for a receiver to derive all identifiers for several layers within a single service; the method allows to reduce the messages exchange in such a communication system.Type: GrantFiled: January 20, 2009Date of Patent: August 27, 2013Assignee: Thomson LicensingInventors: Jian Feng Chen, Ning Liao
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Patent number: 8437717Abstract: A method for reporting state information is provided. The receiver device receives a service, which is encoded in at least two layers over a communication channel, through a subset of said at least two layers; it measures a channel quality parameter; and in response to the channel quality parameter reaching a predetermined threshold value, it receives the service through a modified subset of the at least two layers as a function of the measured channel quality parameter and transmitting state information of the receiver device. Thus, the signal overhead is reduced.Type: GrantFiled: June 16, 2009Date of Patent: May 7, 2013Assignee: Thomson LicensingInventors: Jian Feng Chen, Jun Li, Yun Tao Shi, Ning Liao
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Publication number: 20130044224Abstract: Objective video quality assessment models at media-layer or at packet-layer are known for estimating audio/video quality of experience. Existing models are not able to provide stable performance. A method for enabling quality assessment of a stream of frames of video data comprises receiving a sequence of packets, generating a set of parameters and inserting said generated set of parameters as side information into said stream of frames, wherein at least one parameter refers to a video slice level. A method for assessing the quality of a stream of frames of video data comprises receiving a sequence of packets, extracting a set of parameters from said sequence of packets and generating an estimated mean opinion score, wherein the video data comprise a slice level and wherein the extracted set of parameters comprises at least one parameter that refers to a video slice level.Type: ApplicationFiled: April 30, 2010Publication date: February 21, 2013Applicant: THOMSON LICENSINGInventors: Ning Liao, Zhibo Chen, Xianlel Wang
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Publication number: 20130021937Abstract: When capturing packets at the application level for the purpose of QoS monitoring, a QoS monitor needs to be bound to the same IP address and port as those of a media player. However, due to the unicast duplicate binding problem, a unicast packet captured by the QoS monitor will not be received by the media player, which means the QoS monitor have affected the operation of the media player. The present invention provides a solution to make the QoS monitor, upon the receipt of a unicast packet, forward the packet to the socket of the media player. In order to guarantee that the forwarded packet can be received by the socket of the media player, the QoS monitor needs to keep the port unchanged and replace the destination IP address with the local host address (127.0.0.1). According to the invention, the QoS monitor can sniff the media player without interference to the normal operation of the media player.Type: ApplicationFiled: March 24, 2010Publication date: January 24, 2013Inventors: Xianlei Wang, Renlei Chen, Ning Liao
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Patent number: 8355355Abstract: It provides a method for multicast group management. The apparatus determines a request for joining a multicast service derived during establishment of a connection for carrying multicast service between a first device and a second device, and it sends a message indicative of joining said multicast service based on the request for joining if the multicast service is not available in said network device. As a consequence, it reduces the messages exchanged in unreliable wireless connection so as to reduce the probability of service interruption.Type: GrantFiled: May 7, 2009Date of Patent: January 15, 2013Assignee: Thomson LicensingInventors: Ning Liao, Yun Tao Shi, Jun Li
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Publication number: 20120320814Abstract: A method of a mobile station receiving data packets from a serving base station via a multicast or broadcast connection in a wireless network is provided for performing a handover from the serving base station to a target base station. The method comprises, at the level of the mobile station, the steps of: upon the detection of the quantity of buffered data packets in the mobile station being lower than a first threshold value, establishing a unicast connection with the serving base station to receive data packets from the serving base station; and upon detection of the level of buffered data packets reaching the predetermined threshold level, performing a handover from the serving base station to the target base station. According to the invention, a seamless handover of a mobile station in a wireless network providing Multicast and Broadcast Service (MBS service) can be achieved to prevent the MBS service interruption during the handover.Type: ApplicationFiled: January 4, 2010Publication date: December 20, 2012Inventors: Jian Feng Chen, Jun Li, Yun Tao Shi, Ning Liao
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Publication number: 20120084815Abstract: It is provided a method for providing a service guide in a network providing a plurality of multicast services, said network comprising at least one client device connected to an intermediate a first device, wherein a subset of said plurality of multicast services is being multicast to said at least one client device via said intermediate first device, and the service guide provides a list of the plurality of multicast services in a second order; and at the side of a client device, the method comprises the steps of determining a list of the plurality of multicast services in a first order, wherein the order is changed from the second order to the first order based on the multicast services of the subset; and presenting said list of multicast services in said first order.Type: ApplicationFiled: June 9, 2010Publication date: April 5, 2012Inventors: Yun Tao Shi, Ning Liao, Jun Li
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Publication number: 20120021759Abstract: A method for determining location information used in an electronic device of a communication system including a plurality of electronic devices, comprising: transmitting a position request signal via a plurality of communication networks of the communication system; receiving a position response signal with respective location information from at least one electronic devices of the plurality of electronic devices; and determining position information of the electronic device by the received position response signal; wherein the position request signal is transmitted successively to the plurality of networks in a specific order among said networks until the location information of the electronic device is determined based on the location response signal.Type: ApplicationFiled: March 25, 2010Publication date: January 26, 2012Inventors: Jian Feng Chen, Peng Liu, Ning Liao, Yun Tao Shi, Juan Xiang, Ben Niu
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Publication number: 20110264977Abstract: The present invention provides a scalable and reliable feedback suppression method for receiving and transmitting data block. The method comprises receiving at least one initial data packet of the data block which is sent by the transmitter to the multicast group of receivers; and sending at least one NAK packet indicating packet loss to the transmitter by at least one receiver of the multicast group, wherein the at least one NAK packet is sent in a single uplink time slot dedicated to said multicast group of receivers, and wherein the NAK packet is identical for all receivers of said multicast group.Type: ApplicationFiled: August 27, 2009Publication date: October 27, 2011Inventors: Jian Feng Chen, Ning Liao, Jun Li
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Publication number: 20110147144Abstract: A motor for actuating brake members of an electric parking (EPB) system, comprises a stator and a rotor rotatably mounted to the stator. The rotor comprises a shaft, a commutator, a rotor core fixed to the shaft, and rotor windings wound about teeth of the rotor core and electrically connected to segments of the commutator. The rotor windings comprise a plurality of winding units, each of the wining units comprising at least two coils. The coils of each winding unit are wound about the same teeth and connected to a same pair of segments.Type: ApplicationFiled: November 17, 2010Publication date: June 23, 2011Applicant: Johnson Electric S.A.Inventors: Hang Cheong MA, Hing Shing Chung, Hai Ning Liao
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Publication number: 20110075599Abstract: It provides a method for multicast group management. The apparatus determines a request for joining a multicast service derived during establishment of a connection for carrying multicast service between a first device and a second device, and it sends a message indicative of joining said multicast service based on the request for joining if the multicast service is not available in said network device. As a consequence, it reduces the messages exchanged in unreliable wireless connection so as to reduce the probability of service interruption.Type: ApplicationFiled: May 7, 2009Publication date: March 31, 2011Inventors: Ning Liao, Yun Tao Shi, Jun Li
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Publication number: 20110002265Abstract: A method for providing a service comprising a plurality of coding layers in a communication network is provided, and wherein each one of said plurality of layers is associated with a unique identifier, the method uses a single message containing necessary information for a receiver to derive all identifiers for several layers within a single service; the method allows to reduce the messages exchange in such a communication system.Type: ApplicationFiled: January 20, 2009Publication date: January 6, 2011Inventors: Jian Feng Chen, Ning Liao
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Publication number: 20100267407Abstract: A method for scheduling wake/sleep cycles by a central device in a wireless network is provided. The wireless network comprises at least one mobile device. The method comprises: attributing a wake/sleep cycle length to each mobile device, wherein the wake/sleep cycle length is an integer multiple of a system schedule cycle; assigning a sleep period and a wake period within the wake/sleep cycle of each mobile device; and arranging the wake/sleep cycle of each mobile device to avoid collision of the wake period with those of other mobile devices. The present invention can keep the maximum sleep cycle period of each MS to guarantee the QoS requirement and to efficiently utilize the system bandwidth.Type: ApplicationFiled: December 30, 2009Publication date: October 21, 2010Inventors: Ning Liao, Jian Feng Chen, Xiao Jun Ma
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Patent number: 7713028Abstract: A turbine blade assembly has a plurality of blades mounted on a central rotor. Each of the blades has a proximal section and a variable pitch section. A number of stays extend in groups from the central rotor to converge and terminate on an associated one of the blades. The stays each have a proximal end spaced from the blades.Type: GrantFiled: November 27, 2006Date of Patent: May 11, 2010Inventor: Ning Liao
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Publication number: 20090325526Abstract: A method for reporting state information is provided. The receiver device receives a service, which is encoded in at least two layers over a communication channel, through a subset of said at least two layers; it measures a channel quality parameter; and in response to the channel quality parameter reaching a predetermined threshold value, it receives the service through a modified subset of the at least two layers as a function of the measured channel quality parameter and transmitting state information of the receiver device. Thus, the signal overhead is reduced.Type: ApplicationFiled: June 16, 2009Publication date: December 31, 2009Inventors: Jian Feng Chen, Jun Li, Yun Tao Shi, Ning Liao
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Publication number: 20080124216Abstract: A turbine blade assembly has a plurality of blades mounted on a central rotor. Each of the blades has a proximal section and a variable pitch section. A number of stays extend in groups from the central rotor to converge and terminate on an associated one of the blades. The stays each have a proximal end spaced from the blades.Type: ApplicationFiled: November 27, 2006Publication date: May 29, 2008Inventor: Ning Liao