Patents by Inventor NAN YI
NAN YI 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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Patent number: 11463350Abstract: In one embodiment, a method comprises: determining, by a network device that is configured for joining a local directed acyclic graph (DAG) instance in a data network, an unreachability by the network device to any member of the local DAG instance; generating and broadcasting, by the network device, a request message that identifies the network device requesting to join the local DAG instance, the request message causing a neighboring network device in a global DAG instance of the data network to rebroadcast the request message for reception by a member of the local DAG instance, the neighboring network device a non-member of the local DAG instance; and receiving, by the network device, a reply message indicating a member of the local DAG instance is reachable via the neighboring network device in the global DAG instance.Type: GrantFiled: November 23, 2020Date of Patent: October 4, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Ling Wei, Wenjia Wu, Nan Yi, Chuanwei Li
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Publication number: 20220166707Abstract: In one embodiment, a method comprises: determining, by a network device that is configured for joining a local directed acyclic graph (DAG) instance in a data network, an unreachability by the network device to any member of the local DAG instance; generating and broadcasting, by the network device, a request message that identifies the network device requesting to join the local DAG instance, the request message causing a neighboring network device in a global DAG instance of the data network to rebroadcast the request message for reception by a member of the local DAG instance, the neighboring network device a non-member of the local DAG instance; and receiving, by the network device, a reply message indicating a member of the local DAG instance is reachable via the neighboring network device in the global DAG instance.Type: ApplicationFiled: November 23, 2020Publication date: May 26, 2022Inventors: LING WEI, WENJIA WU, NAN YI, CHUANWEI LI
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Patent number: 10931399Abstract: In one embodiment, a method comprises determining, by a network device in a wireless data network, that a prescribed Clear Channel Assessment (CCA) threshold is unsuitable for use on an identified wireless network channel among available wireless network channels, based on a determined variance of a corresponding channel transmit attempt failure rate for the identified wireless network channel, relative to an expected variance in channel transmit attempt failure rates that is determined across the respective available wireless network channels; and selectively adjusting the corresponding CCA threshold for the identified wireless network channel, until a second determined variance of the corresponding channel transmit attempt failure rate, at the identified wireless network channel, falls below a prescribed channel failure rate variance factor relative to the expected variance.Type: GrantFiled: March 1, 2019Date of Patent: February 23, 2021Assignee: CISCO TECHNOLOGY, INC.Inventors: Lele Zhang, Huimin She, Chuanwei Li, Nan Yi
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Patent number: 10917196Abstract: In one embodiment, a device in a network determines that a plurality of packets should be aggregated, each of the plurality of packets comprising a payload. The device generates, for each of the payloads, a sub-media access control (sub-MAC) header that comprises a sequence number and a frame check sequence (FCS). The device forms an aggregated packet that comprises a physical layer (PHY) header, a MAC header, the payloads, and the generated sub-MAC headers for the payloads. The device sends the aggregated packet to another device in the network.Type: GrantFiled: February 12, 2019Date of Patent: February 9, 2021Assignee: Cisco Technology, Inc.Inventors: Wenjia Wu, Nan Yi, Huimin She, Chuanwei Li
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Patent number: 10904097Abstract: In one embodiment, a device in a mesh network rooted at a root node receives a subroot selection notification. The subroot selection notification indicates that the device should function as a root of a sub-directed acyclic graph (DAG) were a power outage to occur. The device determines that a power outage has occurred. The device forms, after determining that a power outage has occurred, a sub-DAG that is rooted at the device by establishing one or more other devices in the mesh network as routing children of the device in the sub-DAG. The device joins the sub-DAG to a DAG rooted at the root node.Type: GrantFiled: March 14, 2019Date of Patent: January 26, 2021Assignee: Cisco Technology, Inc.Inventors: Huimin She, Li Zhao, Nan Yi, Haibo Dong
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Publication number: 20200296001Abstract: In one embodiment, a device in a mesh network rooted at a root node receives a subroot selection notification. The subroot selection notification indicates that the device should function as a root of a sub-directed acyclic graph (DAG) were a power outage to occur. The device determines that a power outage has occurred. The device forms, after determining that a power outage has occurred, a sub-DAG that is rooted at the device by establishing one or more other devices in the mesh network as routing children of the device in the sub-DAG. The device joins the sub-DAG to a DAG rooted at the root node.Type: ApplicationFiled: March 14, 2019Publication date: September 17, 2020Inventors: Huimin She, Li Zhao, Nan Yi, Haibo Dong
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Publication number: 20200280391Abstract: In one embodiment, a method comprises determining, by a network device in a wireless data network, that a prescribed Clear Channel Assessment (CCA) threshold is unsuitable for use on an identified wireless network channel among available wireless network channels, based on a determined variance of a corresponding channel transmit attempt failure rate for the identified wireless network channel, relative to an expected variance in channel transmit attempt failure rates that is determined across the respective available wireless network channels; and selectively adjusting the corresponding CCA threshold for the identified wireless network channel, until a second determined variance of the corresponding channel transmit attempt failure rate, at the identified wireless network channel, falls below a prescribed channel failure rate variance factor relative to the expected variance.Type: ApplicationFiled: March 1, 2019Publication date: September 3, 2020Inventors: LELE ZHANG, HUIMIN SHE, CHUANWEI LI, NAN YI
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Publication number: 20200259592Abstract: In one embodiment, a device in a network determines that a plurality of packets should be aggregated, each of the plurality of packets comprising a payload. The device generates, for each of the payloads, a sub-media access control (sub-MAC) header that comprises a sequence number and a frame check sequence (FCS). The device forms an aggregated packet that comprises a physical layer (PHY) header, a MAC header, the payloads, and the generated sub-MAC headers for the payloads. The device sends the aggregated packet to another device in the network.Type: ApplicationFiled: February 12, 2019Publication date: August 13, 2020Inventors: Wenjia Wu, Nan Yi, Huimin She, Chuanwei Li
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Patent number: 10520528Abstract: A dew resistant module for a test socket, and an electronic component testing device having the same are provided. An enclosure body is provided to circumscribe the test socket; and a test socket base plate provided on top of the test socket and enclosure body. A cover is provided to cover the test socket, enclosure body and test socket base plate. With the provision of the enclosure body and the cover, the test socket, test socket base plate and a portion of the thermal head are prevented from coming into contact directly with the atmosphere, whereby condensation or dewing is prevented, thermal insulation achieved and energy consumption minimized.Type: GrantFiled: October 23, 2017Date of Patent: December 31, 2019Assignee: CHROMA ATE INC.Inventors: Xin-Yi Wu, Chien-Hung Lo, Jui-Chih Chou, Hao-Che Yang, Nan-Yi Kuo
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Patent number: 10462821Abstract: A computer-implemented method of determining backoff windows in a wireless computer network is disclosed. The method comprises defining, by an access point in the wireless computer network, a plurality of collision patterns related to message transmission via one or more communication channels in the wireless computer network; detecting, by the access point, occurrence of one of the plurality of collision patterns involving a group of sender nodes in the wireless computer network that have each transmitted a message to the access point and received no acknowledgement message from the access point indicating successful transmission; setting to a first length a length of a backoff window for avoiding collision in data transmission based on a size of the group of sender nodes; sending a first message to a first plurality of nodes in the wireless computer network, the first message instructing performance of backoff during the backoff window having the first length.Type: GrantFiled: February 26, 2018Date of Patent: October 29, 2019Assignee: Cisco Technology, Inc.Inventors: Nan Yi, Huimin She, Yong Zhang, Chuanwei Li
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Publication number: 20190268942Abstract: A computer-implemented method of determining backoff windows in a wireless computer network is disclosed. The method comprises defining, by an access point in the wireless computer network, a plurality of collision patterns related to message transmission via one or more communication channels in the wireless computer network; detecting, by the access point, occurrence of one of the plurality of collision patterns involving a group of sender nodes in the wireless computer network that have each transmitted a message to the access point and received no acknowledgement message from the access point indicating successful transmission; setting to a first length a length of a backoff window for avoiding collision in data transmission based on a size of the group of sender nodes; sending a first message to a first plurality of nodes in the wireless computer network, the first message instructing performance of backoff during the backoff window having the first length.Type: ApplicationFiled: February 26, 2018Publication date: August 29, 2019Inventors: NAN YI, HUIMIN SHE, YONG ZHANG, CHUANWEI LI
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Publication number: 20180113151Abstract: A dew resistant module for a test socket, and an electronic component testing device having the same are provided. An enclosure body is provided to circumscribe the test socket; and a test socket base plate provided on top of the test socket and enclosure body. A cover is provided to cover the test socket, enclosure body and test socket base plate. With the provision of the enclosure body and the cover, the test socket, test socket base plate and a portion of the thermal head are prevented from coming into contact directly with the atmosphere, whereby condensation or dewing is prevented, thermal insulation achieved and energy consumption minimized.Type: ApplicationFiled: October 23, 2017Publication date: April 26, 2018Inventors: Xin-Yi WU, Chien-Hung LO, Jui-Chih CHOU, Hao-Che YANG, Nan-Yi KUO
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Patent number: 8110426Abstract: A pixel of a complementary metal oxide semiconductor (CMOS) image sensor includes a plurality of photodiodes for sensing light to thereby generate photoelectric charges in different regions; a plurality of transfer transistors for transferring photoelectric charges of corresponding photodiodes in response to a first control signal; a floating diffusion region for receiving photoelectric charges transferred by the plurality of transfer transistors; a rest transistor connected between a power supply voltage and the floating diffusion region for resetting the floating diffusion region by controlling a voltage loaded on the floating diffusion region in response to a second control signal; a drive transistor connected between the power supply voltage and the floating diffusion region to serve as a source follower buffer amplifier; and a select transistor connected between the drive transistor and a pixel output terminal for performing an addressing operation in response to a third control signal.Type: GrantFiled: December 28, 2009Date of Patent: February 7, 2012Assignee: Intellectual Ventures II LLCInventor: Nan-Yi Lee
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Patent number: 8035171Abstract: A pixel of a complementary metal oxide semiconductor (CMOS) image sensor includes a plurality of photodiodes for sensing light to thereby generate photoelectric charges in different regions; a plurality of transfer transistors for transferring photoelectric charges of corresponding photodiodes in response to a first control signal; a floating diffusion region for receiving photoelectric charges transferred by the plurality of transfer transistors; a rest transistor connected between a power supply voltage and the floating diffusion region for resetting the floating diffusion region by controlling a voltage loaded on the floating diffusion region in response to a second control signal; a drive transistor connected between the power supply voltage and the floating diffusion region to serve as a source follower buffer amplifier; and a select transistor connected between the drive transistor and a pixel output terminal for performing an addressing operation in response to a third control signal.Type: GrantFiled: December 28, 2009Date of Patent: October 11, 2011Assignee: Intellectual Ventures II LLCInventor: Nan-Yi Lee
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Publication number: 20100194955Abstract: A pixel of a complementary metal oxide semiconductor (CMOS) image sensor includes a plurality of photodiodes for sensing light to thereby generate photoelectric charges in different regions; a plurality of transfer transistors for transferring photoelectric charges of corresponding photodiodes in response to a first control signal; a floating diffusion region for receiving photoelectric charges transferred by the plurality of transfer transistors; a rest transistor connected between a power supply voltage and the floating diffusion region for resetting the floating diffusion region by controlling a voltage loaded on the floating diffusion region in response to a second control signal; a drive transistor connected between the power supply voltage and the floating diffusion region to serve as a source follower buffer amplifier; and a select transistor connected between the drive transistor and a pixel output terminal for performing an addressing operation in response to a third control signal.Type: ApplicationFiled: December 28, 2009Publication date: August 5, 2010Inventor: Nan-Yi Lee
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Publication number: 20100197067Abstract: A pixel of a complementary metal oxide semiconductor (CMOS) image sensor includes a plurality of photodiodes for sensing light to thereby generate photoelectric charges in different regions; a plurality of transfer transistors for transferring photoelectric charges of corresponding photodiodes in response to a first control signal; a floating diffusion region for receiving photoelectric charges transferred by the plurality of transfer transistors; a rest transistor connected between a power supply voltage and the floating diffusion region for resetting the floating diffusion region by controlling a voltage loaded on the floating diffusion region in response to a second control signal; a drive transistor connected between the power supply voltage and the floating diffusion region to serve as a source follower buffer amplifier; and a select transistor connected between the drive transistor and a pixel output terminal for performing an addressing operation in response to a third control signal.Type: ApplicationFiled: December 28, 2009Publication date: August 5, 2010Inventor: Nan-Yi Lee
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Patent number: 7662426Abstract: The present invention discloses a method of fabricating organic light emitting diode array, which adopts a directional spin coating technology to grow different organic light-emitting materials on the same plane so as to control the color of the emitted light and accomplish monochrome or full color organic light emitting diodes.Type: GrantFiled: December 16, 2005Date of Patent: February 16, 2010Assignee: National Chung Chen UniversityInventors: Jungwei John Cheng, Jeng-Rong Ho, Tzu-Yang Peng, Nan-Yi Wu, Chin Min Huang
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Patent number: 7663194Abstract: A pixel of a complementary metal oxide semiconductor (CMOS) image sensor includes a plurality of photodiodes for sensing light to thereby generate photoelectric charges in different regions; a plurality of transfer transistors for transferring photoelectric charges of corresponding photodiodes in response to a first control signal; a floating diffusion region for receiving photoelectric charges transferred by the plurality of transfer transistors; a rest transistor connected between a power supply voltage and the floating diffusion region for resetting the floating diffusion region by controlling a voltage loaded on the floating diffusion region in response to a second control signal; a drive transistor connected between the power supply voltage and the floating diffusion region to serve as a source follower buffer amplifier; and a select transistor connected between the drive transistor and a pixel output terminal for performing an addressing operation in response to a third control signal.Type: GrantFiled: December 20, 2006Date of Patent: February 16, 2010Inventor: Nan-Yi Lee
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Publication number: 20070269944Abstract: A pixel of a complementary metal oxide semiconductor (CMOS) image sensor includes a plurality of photodiodes for sensing light to thereby generate photoelectric charges in different regions; a plurality of transfer transistors for transferring photoelectric charges of corresponding photodiodes in response to a first control signal; a floating diffusion region for receiving photoelectric charges transferred by the plurality of transfer transistors; a rest transistor connected between a power supply voltage and the floating diffusion region for resetting the floating diffusion region by controlling a voltage loaded on the floating diffusion region in response to a second control signal; a drive transistor connected between the power supply voltage and the floating diffusion region to serve as a source follower buffer amplifier; and a select transistor connected between the drive transistor and a pixel output terminal for performing an addressing operation in response to a third control signal.Type: ApplicationFiled: December 20, 2006Publication date: November 22, 2007Inventor: Nan-Yi Lee
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Publication number: 20070141234Abstract: The present invention discloses a method of fabricating organic light emitting diode array, which adopts a directional spin coating technology to grow different organic light-emitting materials on the same plane so as to control the color of the emitted light and accomplish monochrome or full color organic light emitting diodes.Type: ApplicationFiled: December 16, 2005Publication date: June 21, 2007Inventors: Jungwei Cheng, Jeng-Rong Ho, Tzu-Yang Peng, Nan-Yi Wu, Chin Huang