Patents by Inventor Chengzhou Li
Chengzhou Li 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: 11761777Abstract: The present disclosure discloses a navigation method, a device, and a medium. The method includes: planning candidate routes based on a start position and an end position of a user, and obtaining a sequence of candidate road sections in each candidate route; matching each candidate road section in the sequence of candidate road sections in each candidate route with an association relationship between an actual road section and actual road auxiliary information, to obtain a sequence of auxiliary information of each candidate route; and sorting the auxiliary information in the sequence of auxiliary information of each candidate route to obtain a sorted result corresponding each candidate route, and selecting target road auxiliary information from the sequence of auxiliary information of each candidate route based on the sorted result, so as to select a target route from the candidate routes based on the target road auxiliary information.Type: GrantFiled: September 25, 2020Date of Patent: September 19, 2023Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.Inventors: Deguo Xia, Chengzhou Li, Hailu Jia, Jinyi Lei, Jinggang Li
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Patent number: 11629967Abstract: A route planning method includes: receiving a route planning request including information of a starting position and information of a destination position; planning a route from the starting position to the destination position based on conditions about a road including a physical isolation belt; sending a route planning result, the conditions about a road including a physical isolation belt are fused into the route planning.Type: GrantFiled: July 29, 2020Date of Patent: April 18, 2023Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.Inventors: Shiqiang Ding, Chongli Zhu, Chengzhou Li, Jizhou Huang
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Publication number: 20220344599Abstract: Provided is a novel metal complex that can be used as an electron transporting material. A metal complex represented by the following Formula (1) to the following Formula (3). RA1 to RA9, RC1 to RC8, and RE1 to RE6 are each independently a single bond, an alkylene group, an arylene group, a heteroarylene group, or a group represented by —RP1—P(?O)RP2—RP3—, RB1 to RB9, RD1 to RD8, and RF1 to RF6 are each independently a hydrogen atom, an. alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an aryloxy group, a heteroaryloxv group, an amino group, a cyano group, a halogen atom, or a hydroxy group, one or more selected from the group consisting of RB1 to RB9 are a phenanthrolinyl group, one or more selected from the group consisting of RD1 to RD8 are a phenanthrolinyl group, and one or more selected from the group consisting of RF1 to RF6 are a phenanthrolinyl group, M is an alkali metal or an alkaline earth metal, Z is 1 or 2, and X is O or S.Type: ApplicationFiled: October 2, 2020Publication date: October 27, 2022Inventors: Yumi SAKAI, Masataka WATANABE, Kentaro YAMATO, Chengzhou LI
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Publication number: 20220295483Abstract: Techniques for dynamic slot and anchor allocation include accessing allocation data representing at least one time slot allocated for transmission of a radio frequency signal over a wireless communication channel to a wireless device, assigning the at least one time slot to an anchor of a location system, and causing transmission of the radio frequency signal from the anchor to the wireless device in the at least one time slot.Type: ApplicationFiled: March 11, 2022Publication date: September 15, 2022Inventors: Swapnil S. Jain, Chengzhou Li, Arun Unkn
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Publication number: 20210223055Abstract: The present disclosure discloses a navigation method, a device, and a medium. The method includes: planning candidate routes based on a start position and an end position of a user, and obtaining a sequence of candidate road sections in each candidate route; matching each candidate road section in the sequence of candidate road sections in each candidate route with an association relationship between an actual road section and actual road auxiliary information, to obtain a sequence of auxiliary information of each candidate route; and sorting the auxiliary information in the sequence of auxiliary information of each candidate route to obtain a sorted result corresponding each candidate route, and selecting target road auxiliary information from the sequence of auxiliary information of each candidate route based on the sorted result, so as to select a target route from the candidate routes based on the target road auxiliary information.Type: ApplicationFiled: September 25, 2020Publication date: July 22, 2021Inventors: Deguo XIA, Chengzhou LI, Hailu JIA, Jinyi LEI, Jinggang LI
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Publication number: 20210102818Abstract: Route planning method, apparatus, device and computer storage medium which relate to the field of big data are disclosed. The route planning method includes: receiving a route planning request including information of a starting position and information of a destination position; planning a route from the starting position to the destination position based on conditions about a road including a physical isolation belt; sending a route planning result. In the present disclosure, since the physical isolation belt on the road affects the user's safety during travel, the conditions about a road including a physical isolation belt are fused into the route planning, thereby improving the safety of the planned route.Type: ApplicationFiled: July 29, 2020Publication date: April 8, 2021Applicant: Baidu Online Network Technology (Beijing) Co., LtdInventors: Shiqiang DING, Chongli ZHU, Chengzhou LI, Jizhou HUANG
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Patent number: 10160905Abstract: An object of the invention is to provide a blue-green light-emitting phosphor having excellent high-temperature property and excellent light-emitting properties such as brightness and half width. The phosphor is constituted of a plurality of alkaline earth metal elements including a barium element, phosphoric acid and a halogen element, and Eu as an activator, in which the molar ratio of the barium element to the total content of the alkaline earth metal elements is larger than 60% and smaller than 95%, and upon irradiation with a near-ultraviolet ray, the blue-green light-emitting phosphor is excited to thereby emit blue-green visible light.Type: GrantFiled: June 15, 2016Date of Patent: December 25, 2018Assignee: DYDEN CORPORATIONInventor: Chengzhou Li
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Patent number: 10038569Abstract: In an example, there is disclosed an apparatus, having: a first network interface, having a first clock and a local communication driver to communicatively couple the first network interface to a second network interface having a second clock; and one or more logic elements, including at least one hardware logic element, providing a synchronization engine to: send a first plurality of data words from the first wireless interface to the second wireless interface via the local communication driver; receive back from the second wireless interface a second plurality of data words; assign a plurality of error rates to the data words of the second plurality of data words, the plurality of error rates indicating match or mismatch; identify a range of least error values within the plurality of error rates; and select an agreed baud rate from within the range.Type: GrantFiled: March 29, 2016Date of Patent: July 31, 2018Assignee: Intel IP CorporationInventors: Chunhui Liu, Chengzhou Li, Bruno Jechoux
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Publication number: 20180171220Abstract: An object of the invention is to provide a blue-green light-emitting phosphor having excellent high-temperature property and excellent light-emitting properties such as brightness and half width. The phosphor is constituted of a plurality of alkaline earth metal elements including a barium element, phosphoric acid and a halogen element, and Eu as an activator, in which the molar ratio of the barium element to the total content of the alkaline earth metal elements is larger than 60% and smaller than 95%, and upon irradiation with a near-ultraviolet ray, the blue-green light-emitting phosphor is excited to thereby emit blue-green visible light.Type: ApplicationFiled: June 15, 2016Publication date: June 21, 2018Inventor: Chengzhou Li
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Publication number: 20170288899Abstract: In an example, there is disclosed an apparatus, having: a first network interface, having a first clock and a local communication driver to communicatively couple the first network interface to a second network interface having a second clock; and one or more logic elements, including at least one hardware logic element, providing a synchronization engine to: send a first plurality of data words from the first wireless interface to the second wireless interface via the local communication driver; receive back from the second wireless interface a second plurality of data words; assign a plurality of error rates to the data words of the second plurality of data words, the plurality of error rates indicating match or mismatch; identify a range of least error values within the plurality of error rates; and select an agreed baud rate from within the range.Type: ApplicationFiled: March 29, 2016Publication date: October 5, 2017Inventors: Chunhui Liu, Chengzhou Li, Bruno Jechoux
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Patent number: 9778902Abstract: Software Digital Front End (SoftDFE) signal processing techniques are provided. One or more digital front end (DFE) functions are performed on a signal in software by executing one or more specialized instructions on a processor to perform the one or more digital front end (DFE) functions on the signal, wherein the processor has an instruction set comprised of one or more of linear and non-linear instructions. A block of samples comprised of a plurality of data samples is optionally formed and the digital front end (DFE) functions are performed on the block of samples. The specialized instructions can include a vector convolution function, a complex exponential function, an xk function, a vector compare instruction, a vector max( ) instruction, a vector multiplication instruction, a vector addition instruction, a vector sqrt( ) instruction, a vector 1/x instruction, and a user-defined non-linear instruction.Type: GrantFiled: October 26, 2012Date of Patent: October 3, 2017Assignee: Intel CorporationInventors: Kameran Azadet, Chengzhou Li, Albert Molina, Joseph H. Othmer, Steven C. Pinault, Meng-Lin Yu, Joseph Williams, Ramon Sanchez Perez, Jian-Guo Chen
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Patent number: 9179366Abstract: A scheduler having improved throughput is disclosed, for scheduling packets or other data blocks for transmission from a plurality of transmission elements in timeslots in a communication system. The scheduler determines for the transmission elements respective channel capacities, and adjusts one or more of the channel capacities based on amounts of data available to transmit in the corresponding transmission elements. The scheduler then selects one or more of the transmission elements for scheduling in a given one of the timeslots based on the one or more adjusted channel capacities. The scheduler in an illustrative embodiment may be implemented in a network processor integrated circuit or other processing device of the communication system.Type: GrantFiled: August 31, 2006Date of Patent: November 3, 2015Assignee: Intel CorporationInventors: Noy C. Kucuk, Chengzhou Li, Jinhui Li, Evstratios Vandris
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Patent number: 9055011Abstract: A buffer memory is provided that comprises a plurality of memory elements for storing data elements in an order of arrival, wherein the plurality of memory elements have a variable size and wherein each memory element comprises a pointer (such as a next block starting index) to a memory element storing a next data element. Additionally, each memory element optionally further comprises a block size field indicating the variable size and/or a sequence number field indicating a sequence number of the corresponding data element. The buffer memory optionally comprises a largest sequence variable to store a sequence number of a data element in the buffer memory having a largest sequence number. The largest sequence variable is updated if a newly arrived data element has a sequence number that is larger than the largest sequence variable. A method is also provided for managing the disclosed buffer memories.Type: GrantFiled: August 31, 2010Date of Patent: June 9, 2015Assignee: INTEL CORPORATIONInventors: Chengzhou Li, Ximing M. Chen, Herbert B. Cohen
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Patent number: 8897388Abstract: Crest factor reduction (CFR) techniques are provided using asymmetrical pulses. A crest factor reduction method comprises obtaining one or more data samples; detecting at least one peak in the one or more data samples; performing peak cancellation on the at least one detected peak by applying an asymmetric cancellation pulse to the at least one detected peak; and providing processed versions of the one or more data samples. The asymmetric cancellation pulse is generated, for example, by a minimum phase filter and has a substantially minimum group delay. New peaks associated with peak re-growth are introduced substantially only to the one side of the asymmetric cancellation pulse. The process can optionally rewind by an amount greater than or substantially equal to a group delay of the asymmetric cancellation pulse to address the limited number of pre-cursors that may be present in the asymmetric cancellation pulse.Type: GrantFiled: October 26, 2012Date of Patent: November 25, 2014Assignee: LSI CorporationInventors: Albert Molina, Kameran Azadet, Chengzhou Li
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Patent number: 8842665Abstract: A method of applying an order N fast Hadamard transform (FHT) of a vector U using a mixed radix FHT in a receiver of a communication system, the N a positive integer, when receiving signals from a transmitter over a channel and generating the vector U. The method includes, in an FHT module of a decoder in the receiver, planning n stages of the mixed radix FHT, where the n is a positive integer, each stage defined by corresponding logic, decomposing the order N FHT into n low order FHTs, such that N=KnKn?1 . . . K1 and U=UKnKn?1 . . . K1, where the K is a positive integer, calculating, via the corresponding logic, each low order FHT at each stage, wherein input vectors of a subsequent stage are calculated in a proceeding stage, and reconstructing, by the decoder, calculated results of the each low order FHT to form an output vector output the decoder.Type: GrantFiled: August 17, 2012Date of Patent: September 23, 2014Assignee: LSI CorporationInventors: Chengzhou Li, Meng-Lin Yu
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Publication number: 20140086356Abstract: Software Digital Front End (SoftDFE) signal processing techniques are provided. One or more digital front end (DFE) functions are performed on a signal in software by executing one or more specialized instructions on a processor to perform the one or more digital front end (DFE) functions on the signal, wherein the processor has an instruction set comprised of one or more of linear and non-linear instructions. A block of samples comprised of a plurality of data samples is optionally formed and the digital front end (DFE) functions are performed on the block of samples. The specialized instructions can include a vector convolution function, a complex exponential function, an xk function, a vector compare instruction, a vector max( ) instruction, a vector multiplication instruction, a vector addition instruction, a vector sqrt( ) instruction, a vector 1/x instruction, and a user-defined non-linear instruction.Type: ApplicationFiled: October 26, 2012Publication date: March 27, 2014Applicant: LSI CorporationInventors: Kameran Azadet, Chengzhou Li, Albert Molina, Joseph H. Othmer, Steven C. Pinault, Meng-Lin Yu, Joseph Willimas, Ramon Sanchez Perez, Jian-Guo Chen
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Publication number: 20140050158Abstract: Embodiments provide for applying an order N fast Hadamard transform (FHT) of a vector U using a mixed radix FHT in a tees of a communication system, the N is a positive integer, when receiving signals from a transmitter over a channel and generating the vector U. The method includes, in an FHT module of a decoder in the receiver, planning n stages of the mixed radix FHT, where the a is a positive integer, each stage defined by corresponding logic, decomposing the order N FHT into a low order FHTs, and calculating, via the corresponding logic, each low order FHT at each stage. Input vectors of a subsequent stage are calculated in a proceeding stage, and calculated results of each low order FHT are reconstructed by the decoder to form an output vector.Type: ApplicationFiled: August 17, 2012Publication date: February 20, 2014Inventors: Chengzhou LI, Meng-Lin YU
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Patent number: 8379518Abstract: A multi-stage scheduler that provides improved bandwidth utilization in the presence of processor intensive traffic is disclosed. Incoming traffic is separated into multiple traffic flows. Data blocks of the traffic flows are scheduled for access to a processor resource using a first scheduling algorithm, and processed by the processor resource as scheduled by the first scheduling algorithm. The processed data blocks of the traffic flows are scheduled for access to a bandwidth resource using a second scheduling algorithm, and provided to the bandwidth resource as scheduled by the second scheduling algorithm. The multi-stage scheduler in an illustrative embodiment may be implemented in a network processor integrated circuit or other processing device of a communication system.Type: GrantFiled: January 23, 2007Date of Patent: February 19, 2013Assignee: Agere Systems LLCInventors: Deepak Kataria, Chengzhou Li
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Patent number: 8365046Abstract: A method for correcting at least one error in a data transmission over a packet-based communication network includes the steps of: generating a sequence of data packets for transmission over the packet-based communication network, the sequence of data packets being arranged into a plurality of packet frames, each of at least a subset of the packet frames including at least a primary data packet and a number of redundant data packets which is a function of a prescribed redundancy pattern, the subset of packet frames having a non-uniform distribution of redundant data packets therein; transmitting the sequence of data packets over the communication network; and recovering at least one missing data packet in the sequence of data packets using at least one corresponding redundant data packet in at least one subsequently received packet frame when the missing data packet is identified in a receiver of the sequence of data packets.Type: GrantFiled: November 23, 2010Date of Patent: January 29, 2013Assignee: LSI CorporationInventors: Ximing Chen, Chengzhou Li, Herbert B. Cohen
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Publication number: 20120131420Abstract: A method for correcting at least one error in a data transmission over a packet-based communication network includes the steps of: generating a sequence of data packets for transmission over the packet-based communication network, the sequence of data packets being arranged into a plurality of packet frames, each of at least a subset of the packet frames including at least a primary data packet and a number of redundant data packets which is a function of a prescribed redundancy pattern, the subset of packet frames having a non-uniform distribution of redundant data packets therein; transmitting the sequence of data packets over the communication network; and recovering at least one missing data packet in the sequence of data packets using at least one corresponding redundant data packet in at least one subsequently received packet frame when the missing data packet is identified in a receiver of the sequence of data packets.Type: ApplicationFiled: November 23, 2010Publication date: May 24, 2012Inventors: Ximing Chen, Chengzhou Li, Herbert B. Cohen