Patents by Inventor Le Zeng

Le Zeng 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: 11967983
    Abstract: Aspects described herein include devices and methods for smart ultra wideband transmissions. In one aspect, an apparatus includes pulse generation circuitry configured to output a plurality of transmission (TX) pulse samples at a selected signal sample rate, where each pulse sample of the plurality of TX pulse samples comprises a value associated with a pulse amplitude at a corresponding sample time The apparatus includes a plurality of power amplifier (PA) cells, with each PA cell of the plurality of PA cells comprising a corresponding current source and associated gates, and where the associated gates of a PA cell are selectable to configure an on state and an off state. Logic circuitry of the apparatus is configured to set the on state or the off state for each PA cell.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: April 23, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Yi Zeng, Cheng-Han Wang, Emanuele Lopelli, Chan Hong Park, Liang Zhao, Le Nguyen Luong, Koorosh Akhavan
  • Patent number: 11963218
    Abstract: This application provides a communications method and a communications apparatus, to reduce storage resources required by an access network device to store a context of a terminal device. The method includes: The access network device gathers terminal devices that have a same attribute in a group, where a context of each terminal device is divided into two parts: a common context and a dedicated context, the common context is shared by all the terminal devices in the group, and the dedicated context is a context specific to the terminal device. The access network device stores one common context for each group and stores a dedicated context of each terminal device in the group, to maintain the context of each terminal device.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: April 16, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tingting Geng, Le Yan, Qinghai Zeng
  • Publication number: 20240106496
    Abstract: Aspects described herein include devices and methods for smart ultra wideband transmissions. In one aspect, an apparatus includes pulse generation circuitry configured to output a plurality of transmission (TX) pulse samples at a selected signal sample rate, where each pulse sample of the plurality of TX pulse samples comprises a value associated with a pulse amplitude at a corresponding sample time The apparatus includes a plurality of power amplifier (PA) cells, with each PA cell of the plurality of PA cells comprising a corresponding current source and associated gates, and where the associated gates of a PA cell are selectable to configure an on state and an off state. Logic circuitry of the apparatus is configured to set the on state or the off state for each PA cell.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 28, 2024
    Inventors: Yi ZENG, Cheng-Han WANG, Emanuele LOPELLI, Chan Hong PARK, Liang ZHAO, Le Nguyen LUONG, Koorosh AKHAVAN
  • Publication number: 20150336823
    Abstract: Provided herein is an efficient solid-liquid separation method for bio-waste material treatment. The method contemplates the addition of certain cationic polyelectrolytes (or “polymers” as used herein) to the bio-waste materials prior to solid-liquid separation, such as centrifugation, thus greatly facilitate the subsequent solid-liquid separation step. The liquid portion, once separated from solid portion using the subject methods, can be subjected to further downstream nutrient recovery manipulations (such as phosphate precipitation and ammonia stripping) with potentially better efficiency, or may be used directly in a number of operations, such as a liquid diluent for feedstocks in an ethanol plant.
    Type: Application
    Filed: December 20, 2013
    Publication date: November 26, 2015
    Inventors: Le Zeng, Xiaomei Li
  • Publication number: 20120074058
    Abstract: Provided herein is an efficient solid-liquid separation method for bio-waste material treatment. The method contemplates the addition of certain cationic polyelectrolytes (or “polymers” as used herein) to the bio-waste materials prior to solid-liquid separation, such as centrifugation, thus greatly facilitate the subsequent solid-liquid separation step. The liquid portion, once separated from solid portion using the subject methods, can be subjected to further downstream nutrient recovery manipulations (such as phosphate precipitation and ammonia stripping) with potentially better efficiency, or may be used directly in a number of operations, such as a liquid diluent for feedstocks in an ethanol plant.
    Type: Application
    Filed: September 27, 2011
    Publication date: March 29, 2012
    Applicant: HIGHMARK RENEWABLES RESEARCH, L.P.
    Inventors: Le Zeng, Xiaomei Li
  • Patent number: 7014768
    Abstract: A process for removal and recovery of nutrients and recycling of water from digested manure or other organic wastes. A first step involves separating waste from an anaerobic digester into digested liquids, digested solids, and biogas. A second step involves precipitating solids from the digested liquids. A third step involves stripping ammonia from the digested liquids. A fourth step involves injecting an exhaust stream of carbon dioxide drawn from the co-generator into the digested liquids to reduce the pH and raise the temperature of the digested liquid. A fifth step involves recycling the digested liquids back to the anaerobic digester for use in diluting in coming solid wastes. A sixth step involves passing the excess ammonia stripped from the digested liquid through the digested solids to recover nitrogen through aborption with the resultant digested solids being usable as a biofertilizer with a high nitrogen content. A seventh step involves capturing the biogas for use in a co-generation system.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: March 21, 2006
    Assignee: Alberta Research Council Inc.
    Inventors: Xiaomei Li, Le Zeng, Earl August Jenson
  • Publication number: 20040164021
    Abstract: A process for removal and recovery of nutrients and recycling of water from digested manure or other organic wastes. A first step involves separating waste from an anaerobic digester into digested liquids, digested solids, and biogas. A second step involves precipitating solids from the digested liquids. A third step involves stripping ammonia from the digested liquids. A fourth step involves injecting an exhaust stream of carbon dioxide drawn from the co-generator into the digested liquids to reduce the pH and raise the temperature of the digested liquid. A fifth step involves recycling the digested liquids back to the anaerobic digester for use in diluting in coming solid wastes. A sixth step involves passing the excess ammonia stripped from the digested liquid through the digested solids to recover nitrogen through aborption with the resultant digested solids being usable as a biofertilizer with a high nitrogen content. A seventh step involves capturing the biogas for use in a co-generation system.
    Type: Application
    Filed: January 20, 2004
    Publication date: August 26, 2004
    Inventors: Xiaomei Li, Le Zeng, Earl August Jenson