Patents by Inventor Songping Wu

Songping Wu 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: 20200350733
    Abstract: An electrical connector can include a tongue, a shell, multiple pins, and a shield. The shell can enclose the tongue, and can define an aperture for receiving a plug. The multiple pins can extend along the tongue. The multiple pins can extend beyond the shell a first distance from a back portion of the shell. The back portion of the shell can be opposite from the aperture. The shield can extend from a back portion of the shell. The shield can include a first arm extending away from the back portion of the shell a second distance and a second arm extending from the first arm. The second distance can be greater than the first distance.
    Type: Application
    Filed: May 1, 2019
    Publication date: November 5, 2020
    Inventors: Zhiping Yang, Songping Wu, Jordan Kestler, Huan Liao
  • Publication number: 20200292183
    Abstract: An indoor unit of an air conditioner includes: a bottom shell, at least two air passages (11) are provided abreast in the bottom shell (1); an air passage cover plate (2), provided on the at least two air passages (11) in a covering manner, flow guide openings (21) corresponding to the at least two air passages (11) are provided in the air passage cover plate (2) respectively; at least two centrifugal fans (3), provided in the at least two air passages (11) respectively and provided opposite to the corresponding flow guide openings (21); and an evaporator (4), provided on a side, far away from the bottom shell (1), of the air passage cover plate (2), each of the flow guide openings (21) is provided opposite to the evaporator (4).
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Inventors: SHAOBO WU, WEIWEI PENG, CHANGCHUN ZHANG, SONG LI, JIANQUN YANG, YONGCHAO LIANG, JUNXIONG YOU, HUAXIANG XIONG, ANHUI LIAO, YUANJU XU, BAOBAO LIU, SONGPING TAN, XIUYING WU
  • Patent number: 10670280
    Abstract: An indoor unit of an air conditioner includes: a bottom shell, at least two air passages (11) are provided abreast in the bottom shell (1); an air passage cover plate (2), provided on the at least two air passages (11) in a covering manner, flow guide openings (21) corresponding to the at least two air passages (11) are provided in the air passage cover plate (2) respectively; at least two centrifugal fans (3), provided in the at least two air passages (11) respectively and provided opposite to the corresponding flow guide openings (21); and an evaporator (4), provided on a side, far away from the bottom shell (1), of the air passage cover plate (2), each of the flow guide openings (21) is provided opposite to the evaporator (4).
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: June 2, 2020
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Shaobo Wu, Weiwei Peng, Changchun Zhang, Song Li, Jianqun Yang, Yongchao Liang, Junxiong You, Huaxiang Xiong, Anhui Liao, Yuanju Xu, Baobao Liu, Songping Tan, Xiuying Wu
  • Patent number: 10560140
    Abstract: A MIMO wireless transceiver includes: antennas, components forming transmit and receive chains coupled to the antennas, a signal combiner, and a predistortion calibration circuit. The transmit chain components include: pre-distorter circuits and power amplifiers (PA)s, The pre-distorter circuits each couple to a transmit chain for pre-distorting an associated signal thereon. The PAs are input coupled to a corresponding transmit chain and output coupled to a corresponding antenna. The signal combiner combines the amplified signals from all of the PAs into a combined output signal.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 11, 2020
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Songping Wu, Hossein Dehghan, Abhishek Kumar Agrawal
  • Patent number: 10506020
    Abstract: The present disclosure provides a data transmission method and a terminal. The method includes respectively allocating, by a terminal, a first download range and a second download range to a first network interface card and a second network interface card according to an obtained download range of to-be-downloaded data; and if the terminal determines that when a preset download time arrives, the first network interface card completes downloading of the first download range and the second network interface card does not complete downloading of the second download range, performing, by the terminal, a first allocation operation at least once. This reduces download duration of to-be-downloaded data.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: December 10, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hui Jin, Songping Yao, Zhen Wu
  • Patent number: 10212019
    Abstract: A communication device determines an estimate of a communication channel, and determines, based on the estimate of the communication channel, a plurality of pairs of modulation schemes and encoding schemes to be used for a packet, including: i) determining, for a first set of adjacent orthogonal frequency division multiplexing (OFDM) subcarriers, a first pair of a modulation scheme and an encoding scheme; and ii) determining, for a second set of adjacent OFDM subcarriers, a second pair of a modulation scheme and an encoding scheme, the second pair being different than the first pair. The communication device generates the packet for transmission, wherein i) all data modulated on the first set of adjacent OFDM subcarriers is modulated and encoded using the first pair, and ii) all data modulated on the second set of adjacent OFDM subcarriers is modulated and encoded using the second pair.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: February 19, 2019
    Assignee: Marvell International Ltd.
    Inventors: Hongyuan Zhang, Hui-Ling Lou, Songping Wu
  • Patent number: 10063402
    Abstract: A communication device determines an estimate of a communication channel, and determines, based on the estimate of the communication channel, a plurality of bit rates to be used for a data unit, including: determining a first bit rate for a first set of one or more orthogonal frequency division multiplexing (OFDM) subcarriers, and determining a second bit rate for a second set of one or more OFDM subcarriers, the second bit rate being different than the first bit rate. The communication device generates the data unit for transmission, wherein i) all data modulated on the first set of one or more OFDM subcarriers corresponds to the first bit rate and ii) all data modulated on the second set of one or more OFDM subcarriers corresponds to the second bit rate.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: August 28, 2018
    Assignee: Marvell International Ltd.
    Inventors: Hongyuan Zhang, Hui-Ling Lou, Songping Wu
  • Patent number: 10002101
    Abstract: Methods and apparatus for equalization of a high speed serial bus. A well-tuned passive equalization circuit for use with high frequency differential signals suffer from e.g., impedance mismatches, impedance discontinuities (e.g., connectors, etc.). In one embodiment, a shunting circuit is inserted between the differential terminals of a Universal Serial Bus (USB) cable, connector, etc. The shunting circuit is configured to “open” at low frequencies to enable Full Speed (FS) enumeration, while also providing sufficiently high impedance at high frequencies to enable High Speed (HS) operation. In one such implementation, the shunting circuit includes a tuned resistor, capacitor, inductor, and switch element arranged in series.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: June 19, 2018
    Assignee: APPLE INC.
    Inventors: Songping Wu, Zhiping Yang, Kirill Kalinichev, Greg Nayman, Georgi Beloev
  • Patent number: 9991941
    Abstract: A plurality of received signals are received at a first communication device, the plurality of received signals corresponding to at least one training signal having been transmitted by a second communication device a plurality of times via a plurality of antennas by the second communication device applying a respective antenna weight vector from a plurality of different antenna weight vectors each time the at least one training signal is transmitted. The first communication device generates a transmitter antenna weight vector based on a mathematical combination of at least i) the plurality of received signals, ii) the antenna weight vectors applied by the second communication device when transmitting the at least one training signal the plurality of times, and iii) the at least one training signal. The first communication device transmits the transmitter antenna weight vector to the second communication device.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: June 5, 2018
    Assignee: Marvell International Ltd.
    Inventors: Songping Wu, Manyuan Shen, Quan Zhou, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 9690425
    Abstract: System and methods are provided for tracking baseline signals for touch detection. The system includes: a comparison network configured to determine whether an input baseline signal is within a tracking range; a filter network configured to generate an output baseline signal for touch detection based at least in part on the input baseline signal according to one or more filter parameters; and a signal processing component configured to update the one or more filter parameters based at least in part on the determination of whether the input baseline signal is within the tracking range.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: June 27, 2017
    Assignee: MARVEL WORLD TRADE LTD.
    Inventors: Kanke Gao, Bike Xie, Songping Wu
  • Patent number: 9590832
    Abstract: Methods an apparatus for performing sub-carrier adaptation in multi-carrier communication systems. In one embodiment, a method includes receiving, via a reverse communication channel, a first data unit via multiple subcarriers. The method further includes determining an estimate of a forward communication channel based on the received first data unit. The method further includes determining different bit rates for the multiple subcarriers based on the estimate of the forward channel. The method further includes transmitting a second data unit via the multiple subcarriers, where bits in the second data unit are allocated across the multiple subcarriers based on the determined bit rates for the multiple subcarriers.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: March 7, 2017
    Assignee: Marvell International Ltd.
    Inventors: Hongyuan Zhang, Hui-Ling Lou, Songping Wu
  • Patent number: 9584255
    Abstract: A first network device including a medium access control module and a physical layer module. The medium access control module is configured to generate a frame to include a first header, a second header and a payload. The first header indicates a start of the frame for a second network device. The second header indicates a length of the payload for the second network device. The payload comprises a third header and data. Other than the payload, a format of the frame complies with IEEE 802.15.4. The physical layer module is configured to: receive the frame; repetition code the third header or repetition code the data; generate a signal including (i) the first header, (ii) the second header, and (iii) the repetition coded third header or the repetition coded data; modulate the signal; and transmit the modulated signal to the second network device.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: February 28, 2017
    Assignee: Marvell International Ltd.
    Inventor: Songping Wu
  • Patent number: 9525759
    Abstract: In a wireless communication system wherein communication devices exchange information utilizing data units that conform to a first format, wherein the first format includes a short training field (STF) spread with a first spread code, a physical layer (PHY) data unit that conforms to a second format and is for transmitting PHY control information is generated. Generating the PHY data unit includes generating a first portion of the PHY data unit to indicate the PHY data unit conforms to the second format, wherein the first portion of the PHY data unit includes an STF spread with a second spread code different than the first spread code. A second portion of the PHY data unit is generated according to the second format, wherein the second portion of the PHY data unit omits header fields specified by the first format.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: December 20, 2016
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Songping Wu, Hui-Ling Lou, Rohit U. Nabar
  • Patent number: 9450848
    Abstract: A first network device including modulation, transmit, front end, and phase modules. The modulation module amplitude or frequency modulates a data signal to generate a modulated signal. The transmit module transmits an output signal based on the modulated signal. The front end module obtains a phase of a point in a first cluster of index ratios. Each of the index ratios corresponds to a respective phase of a respective symbol period of the output signal. Each of the index ratios is based on a maximum amplitude, a minimum amplitude or a mean of amplitudes of the output signal over the symbol periods. The amplitudes for each of the means includes a corresponding one of the maximum amplitudes and a corresponding one of the minimum amplitudes. The phase module adjusts a phase of the output signal based on the phase of the point in the first cluster of index ratios.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: September 20, 2016
    Assignee: Marvell International Ltd.
    Inventor: Songping Wu
  • Publication number: 20160267044
    Abstract: Methods and apparatus for equalization of a high speed serial bus. Various aspects of the present disclosure are directed to a well-tuned passive equalization circuit for use with high frequency differential signals that suffer from e.g., impedance mismatches, impedance discontinuities (e.g., connectors, etc.). In one embodiment, a shunting circuit is inserted between the differential terminals of a Universal Serial Bus (USB) cable, connector, etc. The shunting circuit is configured to “open” at low frequencies to enable Full Speed (FS) enumeration, while also providing sufficiently high impedance at high frequencies to enable High Speed (HS) operation. In one such implementation, the shunting circuit includes a tuned resistor, capacitor, inductor, and switch element arranged in series.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 15, 2016
    Inventors: Songping WU, Zhiping YANG, Kirill KALINICHEV, Greg NAYMAN, Georgi Beloev
  • Patent number: 9420594
    Abstract: Methods and apparatus are provided for adaptively selecting a communications mode in high frequency systems. A first dual-mode device having capabilities of using two or more high frequency communications modes, such as OFDM and SC modulation, may transmit a signal to a second dual-mode device with the same capabilities. The second dual-mode device may compute a channel characteristic associated with a high frequency communications channel and select an optimal high frequency communications mode. The second dual-mode device may transmit information indicative of the channel characteristic or the selected communications mode to the first dual-mode device. The first dual-mode device may select and operate using the optimal high frequency communications mode based on the information received from the second dual-mode device. The first and second dual-mode devices may communicate using the selected high frequency communications mode.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: August 16, 2016
    Assignee: Marvell International Ltd.
    Inventors: Rohit U. Nabar, Hongyuan Zhang, Arul Durai Murugan Palanivelu, Hui-Ling Lou, Songping Wu
  • Patent number: 9413437
    Abstract: A method implemented in a communication device includes receiving a first beamforming training transmission corrupted by a collision, determining a first station to which the first beamforming training transmission corresponds based on the first beamforming training transmission corrupted by the collision, and in response to determining the first station, transmitting a signal to the first station to prompt the first station to transmit a second beamforming training transmission.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: August 9, 2016
    Assignee: Marvell World Trade Ltd.
    Inventors: Yong Liu, Hongyuan Zhang, Songping Wu
  • Publication number: 20160219540
    Abstract: A system and method of extracting data from data packets transmitted over a wireless network includes receiving a data packet having a preamble portion and a payload portion. The preamble portion is cross correlated with a first known spreading sequence to generate a first timing signal and the preamble portion is cross correlated with a second known spreading signal to generate a frame timing signal. An impulse is detected in the first timing signal and a first timing parameter is set based upon the detected impulse in the first timing signal. An impulse is detected in the frame timing signal and a frame timing parameter is set based upon the detected impulse in the frame timing signal. Data is extracted from the received payload portion according to the first timing parameter and the frame timing parameter.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 28, 2016
    Inventors: Hongyuan Zhang, Rohit U. Nabar, Songping Wu
  • Patent number: 9356648
    Abstract: Systems and techniques relating to wireless communications are described. A described technique includes determining a first frequency offset based on a received preamble of a wireless communication signal and a known preamble, the received preamble having been generated based on a spreading sequence and the known preamble, determining a second frequency offset based on the received preamble and the known preamble, and processing at least a portion of the wireless communication signal based on the first frequency offset and the second frequency offset. Determining the first frequency offset can include performing a multi-chip-level differential frequency offset acquisition that uses two or more chips associated with the received preamble. Determining the second frequency offset can include performing a symbol-level differential frequency offset acquisition that uses two or more symbols associated with the received preamble, where each of the two or more symbols are encoded by two or more chips.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 31, 2016
    Assignee: Marvell International Ltd.
    Inventors: Songping Wu, Quan Zhou, Daxiao Yu
  • Patent number: 9313754
    Abstract: A system and method of extracting data from data packets transmitted over a wireless network includes receiving a data packet having a preamble portion and a payload portion. The preamble portion is cross correlated with a first known spreading sequence to generate a first timing signal and the preamble portion is cross correlated with a second known spreading signal to generate a frame timing signal. An impulse is detected in the first timing signal and a first timing parameter is set based upon the detected impulse in the first timing signal. An impulse is detected in the frame timing signal and a frame timing parameter is set based upon the detected impulse in the frame timing signal. Data is extracted from the received payload portion according to the first timing parameter and the frame timing parameter.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: April 12, 2016
    Assignee: MARVELL WORLD TRADE LTD.
    Inventors: Hongyuan Zhang, Rohit U. Nabar, Songping Wu