Patents by Inventor Zhiping Zhang

Zhiping Zhang 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: 20210257037
    Abstract: A method for memory program verification includes performing a write operation on memory cells of a memory device. The method also includes identifying memory strings associated with respective memory cells of the memory cells. The method also includes identifying a first memory string of the memory strings. The method also includes disabling a portion of a write verification for the first memory string. The method also includes enabling the portion of the write verification for other memory strings of the memory strings. The method also includes performing at least the portion of the write verification operation on write verification enabled memory strings.
    Type: Application
    Filed: February 18, 2020
    Publication date: August 19, 2021
    Applicant: SanDisk Technologies LLC
    Inventors: Zhiping Zhang, Huai-Yuan Tseng, Dengtao Zhao, Deepanshu Dutta
  • Patent number: 11081184
    Abstract: A method of concurrently programming a memory. Various methods include: applying a non-negative voltage on a first bit line coupled to a first memory cell; applying a negative voltage on a second bit line coupled to a second memory cell, where the negative voltage is generated using triple-well technology; then applying a programming pulse to the first and second memory cells concurrently; and in response, programming the first and second memory cells to different states. The methods also include applying a quick pass write operation to the first and second memory cells, by: applying a quick pass write voltage to the first bit line coupled to the first memory cell, where the quick pass write voltage is higher than the non-negative voltage; applying a negative quick pass write voltage to the second bit line coupled to the first memory cell, where the negative quick pass write voltage is generated using triple-well technology.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: August 3, 2021
    Assignee: SanDisk Technologies LLC
    Inventors: Zhiping Zhang, Muhammad Masuduzzaman, Huai-Yuan Tseng, Dengtao Zhao, Deepanshu Dutta
  • Patent number: 11062780
    Abstract: Method(s) and structure(s) for a two-page read operation are described and provide a multiple page read. The two page read operation provides for reading two pages with in a block without reducing the control gates to a low voltage level. The two page read can read the first page using an incrementing voltage level at discrete steps and starting the second page read at the high state for the control gates from the first page read. The second page read then decrements the control gate voltages level through the steps. This should reduce energy consumption. The two-page read operation will also reduce the time as the time period to reset the control gates to a low state are not required in between the page read operations.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: July 13, 2021
    Inventors: Zhiping Zhang, Huai-Yuan Tseng, Jiahui Yuan, Dengtao Zhao, Deepanshu Dutta
  • Publication number: 20210202011
    Abstract: Method(s) and structure(s) for a two-page read operation are described and provide a multiple page read. The two page read operation provides for reading two pages with in a block without reducing the control gates to a low voltage level. The two page read can read the first page using an incrementing voltage level at discrete steps and starting the second page read at the high state for the control gates from the first page read. The second page read then decrements the control gate voltages level through the steps. This should reduce energy consumption. The two-page read operation will also reduce the time as the time period to reset the control gates to a low state are not required in between the page read operations.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 1, 2021
    Applicant: SanDisk Technologies LLC
    Inventors: Zhiping Zhang, Huai-Yuan Tseng, Jiahui Yuan, Dengtao Zhao, Deepanshu Dutta
  • Patent number: 11024393
    Abstract: An apparatus comprises a driver circuit, sense circuit, and die controller. The driver circuit supplies a pass voltage to a selected word line and unselected word lines, a sense voltage to an adjacent word line, and a bit line voltage to bit lines coupled to selected and unselected word lines. The sense circuit determines nonconducting and conducting memory cells on the adjacent word line. The die controller then directs the driver circuit to ramp the sense voltage on the adjacent word line to the pass voltage and ramp the pass voltage on the selected word line to ground. The die controller then directs the driver circuit to ramp the bit line voltage for bit lines coupled to nonconducting memory cells to a bit line compensation voltage and directs the sense circuit to read memory cells of the selected word line based on the bit line compensation voltage.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: June 1, 2021
    Assignee: SanDisk Technologies LLC
    Inventors: Zhiping Zhang, Huai-Yuan Tseng, Ken Oowada, Deepanshu Dutta
  • Publication number: 20210159169
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers located over a substrate, where the electrically conductive layers comprise word lines located between a source select gate electrode and a drain select gate electrode, a memory opening vertically extending through each layer of the alternating stack to a top surface of the substrate, a memory film and vertical semiconductor channel having a doping of a first conductivity type located in the memory opening, and an active region having a doping of a second conductivity type that is an opposite of the first conductivity type and adjoined to an end portion of the vertical semiconductor channel to provide a p-n junction. The end portion of the vertical semiconductor channel has a first thickness, and a middle portion of the vertical semiconductor channel has a second thickness which is less than the first thickness.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Inventors: Dengtao ZHAO, Zhiping ZHANG, Peng ZHANG, Deepanshu DUTTA
  • Patent number: 11002288
    Abstract: An integrated structure of a return device and a pressure diffuser, and a centrifugal compressor are provided. The structure includes a pressure diffuser portion and a return device portion integrally molded with the pressure diffuser portion. The pressure diffuser portion is configured to form a pressure diffusion flow channel. The return device portion has a return channel. The return channel is in communication with the pressure diffusion flow channel, and is configured to guide gas from the pressure diffusion flow channel. The structure of the present invention eliminates a need of independently installing a return device and a pressure diffuser, and eliminates connection seams caused by assembly and misalignment caused by accumulated errors. Therefore, gas can smoothly flow through the pressure diffusion flow channel into the return channel, such that a gas flow is well guided, and the gas flow uniformity is better.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 11, 2021
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Zhiping Zhang, Ruixing Zhong, Nan Jiang, Caiyun Jiang, Yuhui Chen, Zengyue Liu, Liandong Lei, Yi Zhou, Jianfei Liu
  • Publication number: 20210134370
    Abstract: A method of concurrently programming a memory. Various methods include: applying a non-negative voltage on a first bit line coupled to a first memory cell; applying a negative voltage on a second bit line coupled to a second memory cell, where the negative voltage is generated using triple-well technology; then applying a programming pulse to the first and second memory cells concurrently; and in response, programming the first and second memory cells to different states. The methods also include applying a quick pass write operation to the first and second memory cells, by: applying a quick pass write voltage to the first bit line coupled to the first memory cell, where the quick pass write voltage is higher than the non-negative voltage; applying a negative quick pass write voltage to the second bit line coupled to the first memory cell, where the negative quick pass write voltage is generated using triple-well technology.
    Type: Application
    Filed: December 3, 2019
    Publication date: May 6, 2021
    Applicant: SanDisk Technologies LLC
    Inventors: Zhiping Zhang, Muhammad Masuduzzaman, Huai-Yuan Tseng, Dengtao Zhao, Deepanshu Dutta
  • Publication number: 20210134369
    Abstract: A method of concurrently programming a memory. Various methods include: applying a non-negative voltage on a first bit line coupled to a first memory cell; applying a negative voltage on a second bit line coupled to a second memory cell, where the negative voltage is generated using triple-well technology; then applying a programming pulse to the first and second memory cells concurrently; and in response, programming the first and second memory cells to different states. The methods also include applying a quick pass write operation to the first and second memory cells, by: applying a quick pass write voltage to the first bit line coupled to the fist memory cell, where the quick pass write voltage is higher than the non-negative voltage; applying a negative quick pass write voltage to the second bit line coupled to the first memory cell, where the negative quick pass write voltage is generated using triple-well technology.
    Type: Application
    Filed: October 30, 2019
    Publication date: May 6, 2021
    Applicant: SanDisk Technologies LLC
    Inventors: Zhiping Zhang, Muhammad Masuduzzaman, Huai-Yuan Tseng, Dengtao Zhao, Deepanshu Dutta
  • Publication number: 20210134372
    Abstract: A method reading memory using bi-directional sensing, including programming first memory cells coupled to a first word-line using a normal programming order; programming second memory cells coupled to a second word-line using a normal programming order; reading data from the first memory cells by applying a normal sensing operation to the first word-line; and reading data from the second memory cells by applying a reverse sensing operation to the second word-line. Methods also include receiving an error associated with reading data from the first memory cells; and then reading the data from the first memory cells by applying a reverse sensing operation to the first word-line. Method also include receiving an error associated with reading the data from the second memory cells; and then reading the data from the second memory cells by applying a normal sensing operation to the second word-line.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 6, 2021
    Applicant: SanDisk Technologies LLC
    Inventors: Zhiping Zhang, Muhammad Masuduzzaman, Huai-Yuan Tseng, Peng Zhang, Dengtao Zhao, Deepanshu Dutta
  • Patent number: 10984867
    Abstract: A memory apparatus and method of operation are provided. The apparatus includes first memory cells coupled to control circuit and a particular word line and storing a first cell data. The apparatus also includes second memory cells coupled to a source side neighbor word line disposed on a source side of the particular word line and storing second cell threshold voltages programmed after the first cell data. The control circuit senses the second cell threshold voltages at a first time while applying a predetermined initial read voltage to the source side neighbor word line. The control circuit senses the first cell data at a second time while iteratively applying one of a plurality of particular read voltages to the particular word line and simultaneously and iteratively applying one of a plurality of neighbor pass voltages to the source side neighbor word line based on the second cell threshold voltages.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 20, 2021
    Assignee: SanDiskTechnologies LLC
    Inventors: Zhiping Zhang, Sarath Chandran Puthen Thermadam, Huai-Yuan Tseng, Deepanshu Dutta
  • Patent number: 10955172
    Abstract: Disclosed is a high-temperature air conditioning device. By changing an arrangement mode of throttle valves, a pressure of refrigerant inside a low-pressure pipeline is made to be lower than a pressure of refrigerant inside a medium-pressure pipeline, thus ensuring that the refrigerant, used for cooling components, inside the low-pressure pipeline has a low pressure, thereby solving a problem in the prior art that a frequency converter, a motor and lubricating oil are not cooled sufficiently or cannot be cooled due to excessively high evaporation pressure.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: March 23, 2021
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Hua Liu, Hongbo Li, Zhiping Zhang, Sheng Wang, Dongjun Sun
  • Publication number: 20210025629
    Abstract: A refrigerant purification apparatus, comprising a main shell and a separation baffle, a liquid separation space and a liquid collection space located under the liquid separation space are formed in the main shell; the liquid separation space in communication with the liquid collection space by means of a collection pipe. The baffle is provided at a position adjacent to a first refrigerant inlet within the liquid separation space to collide with moisture-containing refrigerant injected by means of the first refrigerant inlet, such that the refrigerant and the water in the water-containing refrigerant are separated and layered in the liquid separation space; the pipe configured to introduce the refrigerant located at a lower layer in the liquid separation space into the liquid collection space; and a water outlet configured to discharge the moisture located at a upper layer in the liquid separation space.
    Type: Application
    Filed: December 17, 2018
    Publication date: January 28, 2021
    Inventors: Hua Liu, Zhiping Zhang, Haili Hu, Dongbing Hu, Lishu Hu, Ying Zhang, Nan Jiang
  • Publication number: 20200408449
    Abstract: The invention provides an air conditioner control method and device and an air conditioner. The air conditioner control device acquires a current temperature of a chilled water of a unit at a preset period; determine a target load of the unit, a target temperature of a chilled water and a target temperature of a cooling water based on a temperature of the chilled water set by a user and the current temperature of the chilled water; determine an evaporating parameter and a condensing parameter of the unit based on the target load of the unit, the target temperature of the chilled water and the target temperature of the cooling water; and determine operation parameters of a compressor based on the target load of the unit, the evaporation parameter and the condensation parameter. Therefore, the unit can operate based on the operation parameters.
    Type: Application
    Filed: December 12, 2018
    Publication date: December 31, 2020
    Inventors: Zhiping Zhang, Zhongkeng Long, Chiliang Luo, Bing Zhang
  • Publication number: 20200408210
    Abstract: The present disclosure discloses a screw compressor and an air-conditioning unit, and relates to the field of compressors. The screw compressor has a first pressure level rotor assembly, a second pressure level rotor assembly and a body. The first pressure level rotor assembly has a first pressure level male rotor and a first pressure level female rotor; the second pressure level rotor assembly has a second pressure level male rotor and a second pressure level female rotor. Wherein, the first pressure level rotor assembly and the second pressure level rotor assembly are configured to enable an axial force received by the first pressure level rotor assembly and exerted by a compressed gas opposite to an axial force received by the second pressure level rotor assembly and exerted by a compressed gas. The force received during the operational process of the screw compressor is more balanced.
    Type: Application
    Filed: December 12, 2018
    Publication date: December 31, 2020
    Inventors: Hua Liu, Zhiping Zhang, Tianyi Zhang, Yushi Bi, Cong Cao, Rihua Li, Qiangjun Meng, Ziyuan Huang, Helong Zhang, Yungong Xu, Baoge Zhang, Zhihua Liu, Furong Hou
  • Publication number: 20200378873
    Abstract: The present invention discloses an ocean surface water continuous sampling device, the device comprises a support that ascends and descends along the stern, on the support a sampling pipe for drawing and sampling the surface water, and hydraulic tanks for driving the support up and down to send the sampling pipe to where the surface water is are provided, and a buffer mechanism for avoiding damage due to constant water resistance to the sampling pipe during sailing is provided on the support too. Configuration of the depth transducer, control unit and hydraulic tanks, promises surface water accurate and continuous collection during research vessel travelling; the buffer mechanism works effectively in avoiding radial and axial damage to the sampling pipe due to continuous water current resistance, which successfully relieves the resistance, and prolongs sampling pipe life; and automatic surface water collection is realized with the automatic control design.
    Type: Application
    Filed: April 2, 2019
    Publication date: December 3, 2020
    Inventors: ZHIPING ZHANG, HAORAN ZHANG, YANG LI
  • Publication number: 20200362873
    Abstract: Some embodiments of the disclosure provide a bearing installation and fixation structure and a compressor. The bearing installation and fixation structure includes: a rotatable shaft (7); a bearing (6), provided on the rotatable shaft (7) in a sleeving manner; and an axial locating member, provided on the rotatable shaft (7) in a sleeving manner and including a fixing connecting section (1) and an axial locating section (2) that are integrated with each other; the fixing connecting section (1) is detachably fixed on the rotatable shaft (7); and the axial locating section (2) limits a position of the bearing (6) axially.
    Type: Application
    Filed: December 28, 2017
    Publication date: November 19, 2020
    Inventors: Nan JIANG, Zhiping ZHANG, Ruixing ZHONG, Caiyun JIANG, Yuhui CHEN, Yi ZHOU, Liandong LEI, Zengyue LIU, Jian CHEN, Xinwang OUYANG
  • Publication number: 20200182840
    Abstract: The present invention relates to a quality control method for a Chinese patent drug, and specifically relates to an identification method and a content measurement method for the pediatric compound Endothelium Corneum Gigeriae Galli chewable tablet. Identification is carried out by using specific thin-layer chromatographic identification conditions, and the content is measured by using specific high-performance liquid chromatographic conditions. Accordingly, the specificity and the accuracy are high, chemical components of the product can be fully reflected, the sensitivity is high, the reproducibility is high, the operations are simple, and the change condition of the product quality can be reflected more objectively, comprehensively and sensitively, so that the product quality is controlled on the whole, and comprehensive monitoring of the quality of the Chinese Drug is implemented.
    Type: Application
    Filed: August 14, 2018
    Publication date: June 11, 2020
    Inventors: Zhonghua GUO, Lizhuang ZHANG, Weiwei LIU, Muge QI, Zhiping ZHANG, Bingbing ZHANG
  • Publication number: 20200063754
    Abstract: An integrated structure of a return device and a pressure diffuser, and a centrifugal compressor are provided. The structure includes a pressure diffuser portion and a return device portion integrally molded with the pressure diffuser portion. The pressure diffuser portion is configured to form a pressure diffusion flow channel. The return device portion has a return channel. The return channel is in communication with the pressure diffusion flow channel, and is configured to guide gas from the pressure diffusion flow channel. The structure of the present invention eliminates a need of independently installing a return device and a pressure diffuser, and eliminates connection seams caused by assembly and misalignment caused by accumulated errors. Therefore, gas can smoothly flow through the pressure diffusion flow channel into the return channel, such that a gas flow is well guided, and the gas flow uniformity is better.
    Type: Application
    Filed: September 25, 2017
    Publication date: February 27, 2020
    Inventors: Zhiping ZHANG, Ruixing ZHONG, Nan JIANG, Caiyun JIANG, Yuhui CHEN, Zengyue LIU, Liandong LEI, Yi ZHOU, Jianfei LIU
  • Patent number: 10571245
    Abstract: A grating measuring device includes: a light source module (300) for generating two light beams having different frequencies, one of which serves as a measuring beam and the other as a reference beam; a grating (200); and a grating measuring probe (100) including a dual-frequency light reception module, a vertical measurement module, a vertical detection module and a reference detection module. The dual-frequency light reception module is configured to receive the measuring and reference beams, and the vertical measurement module is adapted to project the measuring beam onto the grating (200), collect a zeroth-order diffracted beam resulting from double diffraction occurring at the grating, and feed the zeroth-order diffracted beam to the vertical detection module. The zeroth-order diffracted beam interferes with the reference beam in the vertical detection module, resulting in a vertical interference signal.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: February 25, 2020
    Assignee: SHANGHAI MICRO ELECTRONICS EQUIPMENT (GROUP) CO., LTD.
    Inventors: Ping Wu, Zhiping Zhang