Patents by Inventor Ming Jia

Ming Jia 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).

  • Publication number: 20200154433
    Abstract: Systems and methods for OFDM channelization are provided that allow for the coexistence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided and systematic channel definition and labeling schemes are provided.
    Type: Application
    Filed: January 20, 2020
    Publication date: May 14, 2020
    Inventors: Hang Zhang, Jianglei Ma, Ming Jia, Sophie Vrzic, Mo-Han Fong, Dong-Sheng Yu, Hua Xu
  • Patent number: 10645643
    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: August 6, 2018
    Date of Patent: May 5, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Patent number: 10645721
    Abstract: System and method embodiments are provided for channel sounding in a frequency division duplex (FDD) system. The embodiments enable a transmission point (TP) to determine channel information about a downlink channel from an uplink channel sounding signal received on the downlink channel frequency band during a time window reserved for uplink channel sounding on the downlink channel frequency band. In an embodiment, a method in a controller includes determining with the controller a schedule for an uplink sounding window in a downlink frequency band, wherein the uplink sounding window comprises a transmission window in at least a partial downlink frequency band that is reserved for uplink channel sounding, instructing a TP to signal the schedule to at least one wireless device in a coverage area of the TP, receiving a channel sounding signal in the downlink frequency band, and obtaining downlink channel state information from the channel sounding signal.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: May 5, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianglei Ma, Ming Jia
  • Publication number: 20200133072
    Abstract: A display module includes a backlight module, a liquid crystal layer disposed on the backlight module, and a first light-expanding layer disposed on the liquid crystal layer. The backlight module provides a surface light source. The surface light source forms an image light through the liquid crystal layer, and the first light-expanding layer increases the viewing angle range of the image light along a first direction. The first light-expanding layer substantially extends along a virtual plane, the first direction is perpendicular to the normal of the virtual plane, and a second direction is perpendicular to the first direction and the normal of the virtual plane. The light intensity at the 60-degree viewing angle of the surface light source along the first direction is lower than the light intensity at the 60-degree viewing angle of the surface light source along the second direction.
    Type: Application
    Filed: October 29, 2019
    Publication date: April 30, 2020
    Inventors: MING-LUNG CHEN, MING-CHUN HSU, CHENG-CHUAN CHEN, LI-JIA CHEN
  • Patent number: 10633118
    Abstract: A mobile rustproofing washing system includes a receptacle, a control module, a water supply module, a filtration module and a washing module. The receptacle is removably disposed on a mobile carrier. The control module is disposed in the receptacle. The water supply module is disposed in the receptacle and includes a front water tank and a rear water tank. The filtration module is connected to the front water tank and the rear water tank. The filtration module receives and filters water from the front water tank. The filtered water is stored in the rear water tank. The washing module connects with the rear water tank and receives water therefrom, so as to carry out a washing process. Therefore, the mobile rustproofing washing system is quick to mount/demount and easy to use, thereby having high mobility.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: April 28, 2020
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yu-Ping Wang, Chin-Cheng Wu, Ming-Jia Wang, Chun-Yu Chen, Yi-Rong Zeng, Kuan-You Liu, Ming-Ta Hsieh, Ching-Wen Fan
  • 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: 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: 20200119958
    Abstract: Aspects of the present disclosure provide a scheme for generating a multiple access (MA) signal that include mapping each of at least one stream of bits to generate a set of modulated symbols and transmitting the set of modulated symbols. The spreading signatures that are selected to map the at least one stream of bits are selected, at least in part, based on a set of compatibility rules. The spreading involves mapping each stream of bits using a respective spreading signature from a set of spreading signatures to generate a respective set of modulated symbols, wherein real spreading signature components of the spreading signatures are orthogonal to each other and imaginary spreading signature components of the spreading signatures are orthogonal to each other.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 16, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: ALIREZA BAYESTEH, MING JIA, SANJEEWA HERATH, JIANGLEI MA
  • 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: 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
  • Patent number: 10613388
    Abstract: A backlight module includes a plurality of light emitting elements and a plurality of lens structures. Each light emitting element has a light emitting surface. The plurality of lens structures covers each light emitting element. Each lens structure has a light exit surface having a curved shape. The light exit surface has a vertex and a focal point located between the vertex and the light emitting element. The distance between the focal points of two adjacent lens structures is a first distance, and each light emitting element has a light emitting width. The ratio of the first distance to the light emitting width is greater than or equal to 10.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: April 7, 2020
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Ming-Lung Chen, Ming-Chun Hsu, Li-Jia Chen
  • 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: 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
  • 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: 20200059900
    Abstract: Communication resources for grant-free transmission are assigned to a User Equipment (UE) in a communication system. A diversity channel for uplink grant-free data transmission includes uplink grant free transmission resources assigned to the UE. The uplink grant-free transmission resources include one or more positions corresponding to partitions of an access region and one or more positions corresponding to resource elements (REs) in each partition of the access region. At a UE, an uplink initial data transmission and a subsequent transmission are transmitted by the UE in the diversity channel without receiving grant information from a network equipment. At a network equipment, the uplink initial data transmission and the subsequent transmission are received in the diversity channel without transmitting grant information to the UE.
    Type: Application
    Filed: August 29, 2019
    Publication date: February 20, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: ALIREZA BAYESTEH, JIANGLEI MA, MING JIA
  • Patent number: 10568094
    Abstract: Systems and methods for OFDM channelization are provided that allow for the coexistence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided and systematic channel definition and labeling schemes are provided.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: February 18, 2020
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Jianglei Ma, Ming Jia, Sophie Vrzic, Mo-Han Fong, Dong-Sheng Yu, Hua Xu
  • Publication number: 20200052949
    Abstract: A method for operating a device includes determining adaptation criteria for a waveform to be transmitted by a transmitting device over a communications channel towards a receiving device, and adjusting a generalized multi-carrier multiplexing parameter (GMMP) of the waveform in accordance with the adaptation criteria. The method also includes transmitting an indicator of the adjusted GMMP to at least one of the transmitting device and the receiving device.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 13, 2020
    Inventors: Peiying Zhu, Jianglei Ma, Ming Jia, Wen Tong
  • Patent number: 10560159
    Abstract: The present invention employs a pilot scheme for frequency division multiple access (FDM) communication systems, such as single carrier FDM communication systems. A given transmit time interval will include numerous traffic symbols and two or more short pilot symbols, which are spaced apart from one another by at least one traffic symbol and will have a Fourier transform length that is less than the Fourier transform length of any given traffic symbol. Multiple transmitters will generate pilot information and modulate the pilot information onto sub-carriers of the short pilot symbols in an orthogonal manner. Each transmitter may use different sub-carriers within the time and frequency domain, which is encompassed by the short pilot symbols within the transmit time interval. Alternatively, each transmitter may uniquely encode the pilot information using a unique code division multiplexed code and modulate the encoded pilot information onto common sub-carriers of the short pilot symbols.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: February 11, 2020
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Ming Jia, Hua Xu, Wen Tong, Peiying Zhu, Moussa Abdi
  • Patent number: 10554464
    Abstract: Methods and systems are provided that enable an OFDM transmitter to be used for transmitting conventional OFDM or a form of transformed OFDM. A technique is provided for transforming a coded and modulated sequence of samples prior to an IFFT that enables the transformed sequence of samples to be transmitted using conventional OFDM or transformed OFDM. The selection of a transform function for transforming the coded and modulated sequence of samples may be based on optimizing the transform function for particular operating conditions between the transmitter and receiver. In some embodiments of the invention OFDM and time transformed OFDM are multiplexed in time and/or frequency in a transmission frame. In some embodiments of the invention a pilot pattern is provided in which the pilot are sent using OFDM and data is sent using OFDM and/or transformed OFDM.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: February 4, 2020
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Wen Tong, Ming Jia, Hua Xu, Peiying Zhu, Hang Zhang
  • Patent number: 10554272
    Abstract: Systems and methods for closed loop MIMO (multiple input and multiple output) wireless communication are provided. Various transmit formats including spatial multiplexing and STTD are defined in which vector or matrix weighting is employed using information fed back from receivers. The feedback information may include channel matrix or SVD-based feedback.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: February 4, 2020
    Assignee: Apple Inc.
    Inventors: Wen Tong, Ming Jia, Jianglei Ma, Peiying Zhu, Hua Xu, Dong-Sheng Yu, Hang Zhang, Mo-Han Fong