Patents by Inventor Wen Tong

Wen Tong 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).

  • Patent number: 10638274
    Abstract: Systems and methods are disclosed herein for an enhanced Multimedia Broadcast Multicast Service (MBMS) in a wireless communications network. In one embodiment, a number of base stations in a MBMS zone, or broadcast region, accommodate both Spatial Multiplexing (SM) enabled user elements and non-SM enabled user elements. In another embodiment, a number of base stations form a MBMS zone, or broadcast region, where the MBMS zone is sub-divided into an SM zone and a non-SM zone. In another embodiment, the wireless communications network includes multiple MBMS zones. For each MBMS zone, base stations serving the MBMS zone transmit an MBMS zone identifier (ID) for the MBMS zone. The MBMS zone ID may be used by a user element for decoding and/or to determine when to perform a handoff from one MBMS zone to another.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: April 28, 2020
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Aaron Callard, Ming Jia, Wen Tong, Peiying Zhu, Hang Zhang
  • Patent number: 10637607
    Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. The row weight for a sub-channel may be viewed as the number of “ones” in the corresponding row of the Kronecker matrix or as a power of 2 with the exponent (i.e. the hamming weight) being the number of “ones” in the binary representation of the sub-channel index (further described below). In one embodiment, candidate sub-channels that have certain row weight values are reserved for parity bit(s). Thereafter, K information bits may be mapped to the K most reliable remaining sub-channels, and a number of frozen bits (e.g. N?K) may be mapped to the least reliable remaining sub-channels. Parity bits may then mapped to the candidate sub-channels, and parity bit values are determined based on a function of the information bits.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu, Gongzheng Zhang, Jian Wang, Nan Cheng, Qifan Zhang
  • Publication number: 20200124915
    Abstract: A keyboard device and an operating method thereof are provided. The keyboard device includes a microcontroller, a drive circuit, a backlight module, and a plurality of key units. The microcontroller is coupled to a computer device. A detection module of the computer device detects an input mode of the computer device. The plurality of key units is disposed on the backlight module. The plurality of key units each has a plurality of character symbols corresponding to different input modes. The microcontroller outputs a control signal to the drive circuit according to the input mode. The drive circuit drives the backlight module according to the control signal to selectively illuminate one of the plurality of character symbols of each of at least a portion of the plurality of key units.
    Type: Application
    Filed: July 17, 2019
    Publication date: April 23, 2020
    Applicants: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Chun-Lin Chen, Chin-Fa Wu, Wen-Tong Liu, Er-Hao Chen, Ming-Fu Yen
  • Patent number: 10631238
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: April 21, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Publication number: 20200119827
    Abstract: In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions.
    Type: Application
    Filed: December 17, 2019
    Publication date: April 16, 2020
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hua Xu, Hang Zhang, Mo-Han Fong
  • Patent number: 10616867
    Abstract: A system and method for transmitting high speed data on fixed rate and for variable rate channels. The system and method provides the flexibility of adjusting the data rate, the coding rate, and the nature of individual retransmissions. Further, the system and method supports partial soft combining of retransmitted data with previously transmitted data, supports parity bit selection for successive retransmissions, and supports various combinations of data rate variations, coding rate variations, and partial data transmissions.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: April 7, 2020
    Assignee: Apple Inc.
    Inventors: Wen Tong, Leo L. Strawczynski, Shalini Periyalwar, Claude Royer
  • Patent number: 10616827
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: April 7, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Publication number: 20200106587
    Abstract: Systems and methods are provided for enabling H-ARQ communication between a base station and one or more wireless terminals. Methods for enabling incremental redundancy (IR) based H-ARQ, Chase based H-ARQ and Space-Time Code combining (STC) based H-ARQ between devices for down?link and up-link direction transmissions are provided in the form of an information element (IE) for use with a Normal MAP convention as currently accepted in the draft version standard of IEEE 802.16. In addition, embodiments of the invention provide a resource management scheme to protect a network from abuse of resources from a wireless terminal not registered with the network. Components of the down-link and up-link mapping components of a data frame transmitted from the base station to one or more wireless terminals included messages that are readable by all wireless terminals as well as some messages that are encrypted and only readable by wireless terminals that are authenticated as being registered with the network.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 2, 2020
    Inventors: Hang Zhang, Mo-Han Fong, Peiying Zhu, Wen Tong
  • Publication number: 20200106458
    Abstract: This application discloses an information processing method and apparatus, a communications device, and a communications system. The method includes: encoding an input sequence by using a low density parity check LDPC matrix to obtain a bit sequence D, where a base matrix of the LDPC matrix is represented by a matrix of m rows and n columns, each column corresponds to a group of Z continuous bits in the bit sequence D, and both n and Z are integers greater than 0; and obtaining an output bit sequence based on a bit sequence V, where the bit sequence V is obtained by permuting groups of bits corresponding to at least two parity check columns in the bit sequence D.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Inventors: Jie JIN, Wen TONG, Ivanov ILYA, Aleksandr Aleksandrovich PETIUSHKO, Chaolong ZHANG
  • Publication number: 20200094848
    Abstract: A method of on-line diagnostic and prognostic assessment of an autonomous vehicle perception system includes detecting, via a sensor, a physical parameter of an object external to the vehicle. The method also includes communicating data representing the physical parameter via the sensor to an electronic controller. The method additionally includes comparing the data from the sensor to data representing the physical parameter generated by a geo-source model. The method also includes comparing results generated by a perception software during analysis of the data from the sensor to labels representing the physical parameter from the geo-source model. Furthermore, the method includes generating a prognostic assessment of a ground truth for the physical parameter of the object using the comparisons of the sensor data to the geo-source model data and of the software results to the geo-source model labels. A system for on-line assessment of the vehicle perception system is also disclosed.
    Type: Application
    Filed: September 24, 2018
    Publication date: March 26, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Yao Hu, Wen-Chiao Lin, Wei Tong, Paul E. Krajewski
  • Publication number: 20200098453
    Abstract: The disclosure provides a method for data instance processing. The method includes obtaining a set of data instances collected from a plurality of organizations. Each of the data instances includes at least one record formed in an organization that stores values of a plurality of attributes of the data instance. The method also includes dividing the set of data instances into groups, wherein data instances with conflicting values for the same attribute are divided into different groups. The method further includes subdividing data instances in each of the groups into clusters.
    Type: Application
    Filed: September 24, 2018
    Publication date: March 26, 2020
    Inventors: Ying Xue Li, Wen Sun, Jing Mei, Yi Qin Yu, Bibo Hao, Jian Min Jiang, Guo Tong Xie
  • Publication number: 20200092035
    Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes allocating, from a set of sub-channels, one or more sub-channels for one or more parity bits based on row weights for sub-channels in a subset of sub-channels within the set of sub-channels, mapping information bits to remaining sub-channels in the set of sub-channels based on a reliability of the remaining sub-channels without mapping any of the information bits to the one or more sub-channels allocated for the one or more parity bits, polar encoding the information bits and the one or more parity bits based on at least the mapping of the information bits to the remaining sub-channels to obtain encoded bits, and transmitting the encoded bits to another device.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 19, 2020
    Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yigun Ge, Xiaocheng Liu
  • Patent number: 10593286
    Abstract: A shift register, a gate driving circuit, a display panel and a driving method. The shift register includes: an input and set circuit, connected with a pull-up node; a storage circuit, connected with the pull-up node and an output end respectively; an output circuit, configured to provide a second clock signal to the output end when a voltage of the pull-up node satisfies an output condition; and a first pull-down circuit, configured to provide a first power voltage to the output end when a first pull-down condition is satisfied. The input and set circuit is further configured to: in a set stage of forward scanning or an input stage of reverse scanning, receive a third clock signal and a second input signal, and in response to the third clock signal, write a voltage of the second input signal into the pull-up node.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: March 17, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Bo Wu, Wen Tan, Zhenxiao Tong
  • Patent number: 10595249
    Abstract: A method and apparatus are provided for performing acquisition, synchronization and cell selection within an MIMO-OFDM communication system. A coarse synchronization is performed to determine a searching window. A fine synchronization is then performed by measuring correlations between subsets of signal samples, whose first signal sample lies within the searching window, and known values. The correlations are performed in the frequency domain of the received signal. In a multiple-output OFDM system, each antenna of the OFDM transmitter has a unique known value. The known value is transmitted as pairs of consecutive pilot symbols, each pair of pilot symbols being transmitted at the same subset of sub-carrier frequencies within the OFDM frame.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: March 17, 2020
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Ming Jia, Peiying Zhu, Wen Tong
  • Patent number: 10594339
    Abstract: A method and system for offset lifting is provided. In an embodiment, a method for encoding data includes receiving a K-bit source word input. The method also includes encoding the K-bit source word input according to a LDPC code, a lifting function, and a circulant size offset to generate an N-bit code word output. The circulant size and lifting function are determined according to an information length, a code rate, and a decoder. The method also includes storing the N-bit code word output in input/output memory.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: March 17, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Pavel Anatolyevich Panteleev, Wen Tong, Jiang Li, Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy
  • Patent number: 10588075
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: March 10, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Patent number: 10581500
    Abstract: Aspects of the present invention provide additional MAC functionality to support the PHY features of a wireless communication system framework. The additional MAC functionality aids in enabling feedback from wireless terminals to base stations. In some aspects of the invention the feedback is provided on an allocated feedback channel. In other aspects of the invention the feedback is provided by MAC protocol data units (PDU) in a header, mini-header, or subheader. The feedback may be transmitted from the wireless terminal to the base station autonomously by the wireless terminal or in response to an indication from the base station that feedback is requested. Aspects of the invention also provide for allocating feedback resources to form a dedicated feedback channel. One or more of these enhancements is included in a given implementation. Base stations and wireless terminals are also described upon which methods described herein can be implemented.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: March 3, 2020
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Mo-Han Fong, Peiying Zhu, Jianglei Ma, Wen Tong
  • Publication number: 20200067749
    Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
    Type: Application
    Filed: October 29, 2019
    Publication date: February 27, 2020
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hang Zhang, Hua Xu, Dongsheng Yu
  • Publication number: 20200067527
    Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code.
    Type: Application
    Filed: August 30, 2019
    Publication date: February 27, 2020
    Inventors: Gleb Vyacheslavovich Kalachev, Ivan Leonidovich Mazurenko, Pavel Anatolyevich Panteleev, Elyar Eldarovich Gasanov, Aleksey Alexandrovich Letunovskiy, Wen Tong, Carmela Cozzo
  • Patent number: 10566081
    Abstract: A method, device, and computer program storage product for generating a query to extract clinical features into a set of electronic medical record (EMR) tables based on clinical knowledge. A knowledge tree is constructed according to a set of clinical knowledge data. An EMR graph corresponding to a set of EMR tables is obtained. The EMR graph comprises at set of table nodes and a set of attribute nodes. The set of table nodes and the set of attribute nodes represent a structure of each EMR table in the set of EMR tables and a reference relationship among attributes of set of EMR tables. A plurality of sub-queries is generated based on the knowledge tree and the EMR graph. At least one query is generated by combining the plurality of sub-queries according to the knowledge tree.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: February 18, 2020
    Assignee: International Business Machines Corporation
    Inventors: Bi Bo Hao, Gang Hu, Jing Li, Wen Sun, Guo Tong Xie, Yi Qin Yu