Patents by Inventor Lei Lin
Lei Lin 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).
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Patent number: 11336718Abstract: A load balancer determines a first usage load for a first server group that is one of a plurality of server groups associated with a resource. The load balancer determines a usage total for a user group of a plurality of user groups assigned to make requests for the resource via the first server group. The load balancer determines an assignment of the user group to make requests for the resource via the first server group or a second server group of the plurality of server groups based on the usage total of the user group, the first usage load of the first server group, and a second usage load of the second server group. The load balancer routes requests for the resource by the user group to the first server group or the second server group based on the assignment.Type: GrantFiled: July 15, 2020Date of Patent: May 17, 2022Assignee: Verizon Patent and Licensing Inc.Inventors: Matthew W. James, Joseph B. Knaack, David Holtfrerich, Lei Lin, Jessica Marie Lindee
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Patent number: 11327085Abstract: A method for rapid and quantitative determination of sildenafil in cocktail includes the exemplary steps of: Step 1, assigning a Raman spectrum of sildenafil; Step 2, weighing and dissolving a sildenafil standard in methanol to obtain a 1,000 mg/L sildenafil standard solution, and mixing cocktails with the sildenafil standard solution, to prepare test solutions; Step 3, mixing 100 ?L each of test solutions with 500 ?L of surface enhancer OTR 202 to acquire Raman spectra; and Step 4, establishing a linear regression model, with a formula of y=4035.1 x+503.26, where y is the content of sildenafil in cocktail, in mg/L, and x is intensity of Raman characteristic peaks at 1584 cm?1. Rapid determination of sildenafil by SERS is feasible and reliable, serving as a novel, rapid, and accurate method for quantitative determination of sildenafil in cocktail. The method meets the requirements of analysis and detection of sildenafil in other alcoholic beverages.Type: GrantFiled: May 28, 2020Date of Patent: May 10, 2022Assignee: ZHEJIANG UNIVERSITYInventors: Yong He, Lei Lin, Pengcheng Nie
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Patent number: 11287373Abstract: The present disclosure relates to a method and system for the in-situ detection of cadmium chelates in a plant. The method includes: preparing cadmium chloride and phytochelatin (PC) 2 samples with different concentrations; using terahertz time-domain spectroscopy (THz-TDS) to determine a terahertz (THz) reflection image for the cadmium chloride and PC 2 samples; building a cadmium chloride content detection model according to first spectral data; building a PC 2 content detection model according to second spectral data; determining an optimal mixed sample according to the cadmium chloride content detection model and the PC 2 content detection model; building a Cd—PC2 content detection model according to the optimal mixed sample; and using the Cd—PC2 content detection model to determine a cadmium chelate content in a to-be-tested plant. The present disclosure can quickly and in-situ detect the heavy metal accumulation capacity of a plant.Type: GrantFiled: March 2, 2021Date of Patent: March 29, 2022Inventors: Yong He, Yinglei Zhao, Pengcheng Nie, Lei Lin, Xuping Feng
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Publication number: 20220086553Abstract: Disclosed by the present invention are a communication control method, device and system, a charging box and a wireless earpiece, the method comprising: when charging a first wireless earpiece by means of two power pins, the charging box obtains first data to be sent if communication with the first wireless earpiece is needed; and according to the first data to be sent, the charging box controls the output voltages of the two power pins to be correspondingly exchanged, so that the first wireless earpiece switches according to the output voltage of a corresponding power pin so as to obtain the first data to be sent during the charging process. In the present method, the charging box controls the output voltages of the two power pins to be correspondingly exchanged according to the first data to be sent, so that the wireless earpiece may obtain the first data to be sent according to the switching of the charging voltages when using the switchable charging voltages of the two power pins to perform charging.Type: ApplicationFiled: September 25, 2019Publication date: March 17, 2022Inventors: Yichao SHAN, Lei LIN
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Publication number: 20220034801Abstract: The present disclosure relates to a method and system for the in-situ detection of cadmium chelates in a plant. The method includes: preparing cadmium chloride and phytochelatin (PC) 2 samples with different concentrations; using terahertz time-domain spectroscopy (THz-TDS) to determine a terahertz (THz) reflection image for the cadmium chloride and PC 2 samples; building a cadmium chloride content detection model according to first spectral data; building a PC 2 content detection model according to second spectral data; determining an optimal mixed sample according to the cadmium chloride content detection model and the PC 2 content detection model; building a Cd—PC2 content detection model according to the optimal mixed sample; and using the Cd—PC2 content detection model to determine a cadmium chelate content in a to-be-tested plant. The present disclosure can quickly and in-situ detect the heavy metal accumulation capacity of a plant.Type: ApplicationFiled: March 2, 2021Publication date: February 3, 2022Inventors: YONG HE, YINGLEI ZHAO, Pengcheng Nie, Lei LIN, Xuping Feng
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Publication number: 20210408767Abstract: The present invention proposes an O-band silicon-based high-speed semiconductor laser diode for optical communication and its manufacturing method, by using different buffer layers to form the growth surface of InP material with low dislocation density; N—InAlGaAs is used instead of conventional N—InAlAs electron-blocking layer in the epi-structure to reduce the barrier for electrons to enter the quantum wells from N-type and lower the threshold; a superlattice structure quantum barrier is used instead of a single layer barrier structure to improve the transport of heavy holes in the quantum wells; and the material structure is adjusted to achieve a reliable O-band high direct modulation speed semiconductor laser diode for optical communication on silicon substrate.Type: ApplicationFiled: August 31, 2021Publication date: December 30, 2021Applicant: FuJian Z.K. Litecore,Ltd.Inventors: zheng qun Xue, hui ying Huang, chang ping Zhang, ze lei Lin, rui yu Fang, hui Su
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Publication number: 20210383879Abstract: A memory apparatus and method of operation is provided. The apparatus includes selected memory cells coupled to a selected word line and each storing a threshold voltage representative of a selected cell data programmed in a program-verify operation. Unselected memory cells are coupled to a neighbor word line disposed adjacent the selected word line. A control circuit is coupled to the selected and unselected memory cells and configured to ramp from at least one initial voltage applied to the neighbor word line directly to a target neighbor verify voltage without exceeding or falling below the target neighbor verify voltage thereby assisting the selected word line reach at least one verify reference voltage used in verifying the threshold voltage of the selected memory cells during at least one verify stage of the program-verify operation following a program operation of the program-verify operation.Type: ApplicationFiled: June 5, 2020Publication date: December 9, 2021Applicant: SanDisk Technologies LLCInventors: Lei Lin, Wei Zhao, Henry Chin, Yen-Lung Li
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Patent number: 10971222Abstract: An apparatus is provided that includes a plurality of memory cells, a programming circuit configured to apply a plurality of programming pulses to the memory cells, and a scanning circuit configured to repeatedly switch between performing an n-state bitscan after each programming pulse until first predetermined criteria are satisfied, and performing an m-state bitscan after each programming pulse until second predetermined criteria are satisfied, where m>n, and n>0.Type: GrantFiled: December 17, 2019Date of Patent: April 6, 2021Assignee: SanDisk Technologies LLCInventors: Lei Lin, Zhuojie Li, Henry Chin, Cynthia Hsu
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Publication number: 20200408786Abstract: A method for rapid and quantitative determination of sildenafil in cocktail includes the exemplary steps of: Step 1, assigning a Raman spectrum of sildenafil; Step 2, weighing and dissolving a sildenafil standard in methanol to obtain a 1,000 mg/L sildenafil standard solution, and mixing cocktails with the sildenafil standard solution, to prepare test solutions; Step 3, mixing 100 ?L each of test solutions with 500 ?L of surface enhancer OTR 202 to acquire Raman spectra; and Step 4, establishing a linear regression model, with a formula of y=4035.1 x+503.26, where y is the content of sildenafil in cocktail, in mg/L, and x is intensity of Raman characteristic peaks at 1584 cm?1. Rapid determination of sildenafil by SERS is feasible and reliable, serving as a novel, rapid, and accurate method for quantitative determination of sildenafil in cocktail. The method meets the requirements of analysis and detection of sildenafil in other alcoholic beverages.Type: ApplicationFiled: May 28, 2020Publication date: December 31, 2020Inventors: Yong HE, Lei LIN, Pengcheng NIE
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Publication number: 20200344291Abstract: A load balancer determines a first usage load for a first server group that is one of a plurality of server groups associated with a resource. The load balancer determines a usage total for a user group of a plurality of user groups assigned to make requests for the resource via the first server group. The load balancer determines an assignment of the user group to make requests for the resource via the first server group or a second server group of the plurality of server groups based on the usage total of the user group, the first usage load of the first server group, and a second usage load of the second server group. The load balancer routes requests for the resource by the user group to the first server group or the second server group based on the assignment.Type: ApplicationFiled: July 15, 2020Publication date: October 29, 2020Applicant: Verizon Patent and Licensing Inc.Inventors: Matthew W. JAMES, Joseph B. KNAACK, David HOLTFRERICH, Lei LIN, Jessica Marie LINDEE
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Publication number: 20200271452Abstract: A tracking device can monitor a movement of an object. The tracking device can detect a deviation in the movement of the object and can generate a data set based on detecting the deviation in the movement of the object. The data set can relate to a location of the object. The tracking device can update a model with the data set. The model can provide an estimated path of the movement of the object over a time period based on a plurality of data sets. The tracking device can transmit the model to a device. The device can use the model to determine a particular location of the object during the time period.Type: ApplicationFiled: February 25, 2019Publication date: August 27, 2020Inventors: Kyle C. SUNG, Rolando GONZALEZ, Lei LIN
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Patent number: 10748622Abstract: Techniques are provided for predictively programming of non-volatile memory, which may reduce the number of verify operations. In one aspect, a programming circuit is configured to program memory cells to a verify low voltage and to program a set of the memory cells to target states. The set comprises memory cells having a threshold voltage between the verify low voltage and a verify high voltage. To program the set of the memory cells to the target states, the programming circuit is configured to apply two or more program pulses to memory cells in the set without verifying whether the memory cells have reached their respective target states, including: apply a first and second program enable voltages to the bit lines associated with the memory cells having different strengths.Type: GrantFiled: February 22, 2019Date of Patent: August 18, 2020Assignee: SanDisk Technologies LLCInventors: Lei Lin, Zhuojie Li, Tai-Yuan Tseng, Henry Chin, Gerrit Jan Hemink
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Publication number: 20200259893Abstract: A load balancer determines a first usage load for a first server group that is one of a plurality of server groups associated with a resource. The load balancer determines a usage total for a user group of a plurality of user groups assigned to make requests for the resource via the first server group. The load balancer determines an assignment of the user group to make requests for the resource via the first server group or a second server group of the plurality of server groups based on the usage total of the user group, the first usage load of the first server group, and a second usage load of the second server group. The load balancer routes requests for the resource by the user group to the first server group or the second server group based on the assignment.Type: ApplicationFiled: February 11, 2019Publication date: August 13, 2020Inventors: Matthew W. JAMES, Joseph B. KNAACK, David HOLTFRERICH, Lei LIN, Jessica Marie LINDEE
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Patent number: 10728317Abstract: A load balancer determines a first usage load for a first server group that is one of a plurality of server groups associated with a resource. The load balancer determines a usage total for a user group of a plurality of user groups assigned to make requests for the resource via the first server group. The load balancer determines an assignment of the user group to make requests for the resource via the first server group or a second server group of the plurality of server groups based on the usage total of the user group, the first usage load of the first server group, and a second usage load of the second server group. The load balancer routes requests for the resource by the user group to the first server group or the second server group based on the assignment.Type: GrantFiled: February 11, 2019Date of Patent: July 28, 2020Assignee: Verizon Patent and Licensing, Inc.Inventors: Matthew W. James, Joseph B. Knaack, David Holtfrerich, Lei Lin, Jessica Marie Lindee
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Publication number: 20200234768Abstract: Techniques are provided for predictively programming of non-volatile memory, which may reduce the number of verify operations. In one aspect, a programming circuit is configured to program memory cells to a verify low voltage and to program a set of the memory cells to target states. The set comprises memory cells having a threshold voltage between the verify low voltage and a verify high voltage. To program the set of the memory cells to the target states, the programming circuit is configured to apply two or more program pulses to memory cells in the set without verifying whether the memory cells have reached their respective target states, including: apply a first and second program enable voltages to the bit lines associated with the memory cells having different strengths.Type: ApplicationFiled: February 22, 2019Publication date: July 23, 2020Applicant: SanDisk Technologies LLCInventors: Lei Lin, Zhuojie Li, Tai-Yuan Tseng, Henry Chin, Gerrit Jan Hemink
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Patent number: 10636488Abstract: Methods and systems for improving the reliability of stored data in the presence of cross-temperature variation are described. To reduce the number of data errors caused by cross-temperature variation, two or more sensing passes may be performed corresponding with two or more different sensing times. The amount of shifting in the memory cell threshold voltages may be determined on a per-bit basis or on a cell-by-cell basis based on the sensing operations performed during the two or more sensing passes. The stored data states may be assigned based on the amount of shifting in the memory cell threshold voltages during the two or more sensing passes and the type of cross-temperature variation present (e.g., whether the memory cells were programmed at a temperature above 65 degrees Celsius and read back at a temperature below 25 degrees Celsius).Type: GrantFiled: September 24, 2018Date of Patent: April 28, 2020Assignee: Western Digital Technologies, Inc.Inventors: Lei Lin, Wei Zhao, Henry Chin, Yingda Dong
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Publication number: 20200126613Abstract: An apparatus is provided that includes a plurality of memory cells, a programming circuit configured to apply a plurality of programming pulses to the memory cells, and a scanning circuit configured to repeatedly switch between performing an n-state bitscan after each programming pulse until first predetermined criteria are satisfied, and performing an m-state bitscan after each programming pulse until second predetermined criteria are satisfied, where m>n, and n>0.Type: ApplicationFiled: December 17, 2019Publication date: April 23, 2020Applicant: SANDISK TECHNOLOGIES LLCInventors: Lei Lin, Zhuojie Li, Henry Chin, Cynthia Hsu
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Patent number: 10535401Abstract: An apparatus is provided that includes a plurality of memory cells, a programming circuit configured to apply a plurality of programming pulses to the memory cells, and a scanning circuit configured to repeatedly switch between performing an n-state bitscan after each programming pulse until first predetermined criteria are satisfied, and performing an m-state bitscan after each programming pulse until second predetermined criteria are satisfied, where m>n, and n>0.Type: GrantFiled: June 5, 2018Date of Patent: January 14, 2020Assignee: SanDisk Technologies LLCInventors: Lei Lin, Zhuojie Li, Henry Chin, Cynthia Hsu
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Publication number: 20190371395Abstract: An apparatus is provided that includes a plurality of memory cells, a programming circuit configured to apply a plurality of programming pulses to the memory cells, and a scanning circuit configured to repeatedly switch between performing an n-state bitscan after each programming pulse until first predetermined criteria are satisfied, and performing an m-state bitscan after each programming pulse until second predetermined criteria are satisfied, where m>n, and n>0.Type: ApplicationFiled: June 5, 2018Publication date: December 5, 2019Applicant: SANDISK TECHNOLOGIES LLCInventors: Lei Lin, Zhuojie Li, Henry Chin, Cynthia Hsu
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Publication number: 20190371402Abstract: Methods and systems for improving the reliability of stored data in the presence of cross-temperature variation are described. To reduce the number of data errors caused by cross-temperature variation, two or more sensing passes may be performed corresponding with two or more different sensing times. The amount of shifting in the memory cell threshold voltages may be determined on a per-bit basis or on a cell-by-cell basis based on the sensing operations performed during the two or more sensing passes. The stored data states may be assigned based on the amount of shifting in the memory cell threshold voltages during the two or more sensing passes and the type of cross-temperature variation present (e.g., whether the memory cells were programmed at a temperature above 65 degrees Celsius and read back at a temperature below 25 degrees Celsius).Type: ApplicationFiled: September 24, 2018Publication date: December 5, 2019Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.Inventors: Lei Lin, Wei Zhao, Henry Chin, Yingda Dong