Patents by Inventor Raja KUMAR

Raja KUMAR 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: 11437391
    Abstract: A method of forming a microelectronic device comprises forming a stack structure. Pillar structures are formed to vertically extend through the stack structure. At least one trench and additional trenches are formed to substantially vertically extend through the stack structure. Each of the additional trenches comprises a first portion having a first width, and a second portion at a horizontal boundary of the first portion and having a second width greater than the first width. A dielectric structure is formed within the at least one trench and the additional trenches. The dielectric structure comprises at least one angled portion proximate the horizontal boundary of the first portion of at least some of the additional trenches. The at least one angled portion extends at an acute angle to each of a first direction and a second direction transverse to the first direction. Microelectronic devices and electronic systems are also described.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: September 6, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Raja Kumar Varma Manthena, Anilkumar Chandolu
  • Publication number: 20220261266
    Abstract: SR-IOV (single root IO virtualization) capable PCIe devices can implement virtual functions (VFs) that are assigned to VMs running on a host machine, thereby speeding IO operation by writing directly to the VMs' memory while bypassing the hypervisor managing the VMs. As such, VFs thwart the dirty page tracking that hypervisors use to minimize VM downtime when the VM is migrated between hosts. The SR-IOV PCIe devices can help resolve this problem by maintaining dirty page tracking data for VMs running on the host machine. The SR-IOV PCIe devices bypassing the hypervisor while writing into a memory page of the VM can set the dirty page tracking data to indicate the memory pages that are dirty (i.e., written to by the VF), and can provide access to the dirty page tracking data. The hypervisor can thereby obtain and use the dirty page tracking data.
    Type: Application
    Filed: February 15, 2021
    Publication date: August 18, 2022
    Inventors: Chaitanya HUILGOL, J. Bradley SMITH, Allen HUBBE, Balakrishnan RAMAN, Harinadh NAGULAPALLI, Krishna DODDAPANENI, Murty Subba Rama Chandra KOTHA, Varada Raja Kumar KARI
  • Publication number: 20220189874
    Abstract: Semiconductor devices with slotted vias, and associated systems and methods, are disclosed herein. In one embodiment, a routing region of the semiconductor device includes a set of slotted vias arranged in a non-orthogonal array pattern. Further, patterns of metal lines associated with the set of slotted vias are drawn to align and/or overlap with the slotted vias. As a result, the metal lines may include zig-zag patterns within the routing region. Further, edges of the slotted vias may have a staircase pattern with sets of horizontal and vertical line segments such that a combination of the horizontal and vertical line segments can orient the slotted vias in a non-orthogonal direction.
    Type: Application
    Filed: December 14, 2020
    Publication date: June 16, 2022
    Inventors: Raja Kumar Varma Manthena, Surendranath C. Eruvuru
  • Patent number: 11314417
    Abstract: Load balancing of NVMe targets based on real time metrics can be obtained for NAS appliances mirroring a namespace by assigning the NAS appliances to service sets that include an active load balancing set, a monitored inactive set, and an out of service set. Storage performance metrics of the NAS appliances can be tracked by monitoring IO operations for accessing a NAS mirroring the namespace in a non-volatile memory. Based on the storage metrics, NAS appliances can be moved from one of the service sets to another. Dummy IO operations can be used to track the storage performance metrics of monitored inactive NAS appliances such that a monitored inactive NAS may be moved to the active load balancing set when certain performance constraints are met.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: April 26, 2022
    Assignee: Pensando Systems, Inc.
    Inventors: Balakrishnan Raman, Chaitanya Huilgol, Harinadh Nagulapalli, Murty Subba Rama Chandra Kotha, Sanjay Shanbhogue, Varada Raja Kumar Kari, Vishwas Danivas
  • Publication number: 20220091872
    Abstract: Virtual functions (VFs) running on SR-IOV (single root IO virtualization) capable PCIe devices can migrate in association with VMs using the VFs. A SR-IOV capable PCIe device installed in a host computer can implement the VFs. A VM running on the host and associated with the VF can use the VF to obtain a service such as network communications or access to a NAS device. Migrating the VF in association with the VM can include halting the VM in a VM state on the host, halting the VF in a PCIe state and then obtaining a PCIe state data, restarting the VF in the PCIe state on a second PCIe device of a second host based on the PCIe state data, and restarting the VM in the VM state on the second host, wherein the VM is configured to use the VF on the second PCIe device.
    Type: Application
    Filed: October 8, 2020
    Publication date: March 24, 2022
    Inventors: Chaitanya HUILGOL, Balakrishnan RAMAN, Harinadh NAGULAPALLI, Murty Subba Rama Chandra KOTHA, Sanjay SHANBHOGUE, Varada Raja Kumar KARI, Vishwas DANIVAS
  • Publication number: 20220091754
    Abstract: Load balancing of NVMe targets based on real time metrics can be obtained for NAS appliances mirroring a namespace by assigning the NAS appliances to service sets that include an active load balancing set, a monitored inactive set, and an out of service set. Storage performance metrics of the NAS appliances can be tracked by monitoring IO operations for accessing a NAS mirroring the namespace in a non-volatile memory. Based on the storage metrics, NAS appliances can be moved from one of the service sets to another. Dummy IO operations can be used to track the storage performance metrics of monitored inactive NAS appliances such that a monitored inactive NAS may be moved to the active load balancing set when certain performance constraints are met.
    Type: Application
    Filed: October 8, 2020
    Publication date: March 24, 2022
    Inventors: Balakrishnan RAMAN, Chaitanya HUILGOL, Harinadh NAGULAPALLI, Murty Subba Rama Chandra KOTHA, Sanjay SHANBHOGUE, Varada Raja Kumar KARI, Vishwas DANIVAS
  • Patent number: 11221972
    Abstract: Increased fairness for small vs large NVMe IO commands for accessing a non-volatile memory namespace provided by a network attached storage appliance can be realized by placing NVMe submissions received by a NVMe SQ on a first fabric queue set or a second fabric queue set based on a fairness policy. The first fabric queue set accesses the namespace via a first fabric connection. The second fabric queue set accesses the namespace via a second fabric connection. Accessing the namespace via the fabric connections results in NVMe completions that are merged from the fabric queue sets onto an NVMe completion queue. A process producing the NVMe submissions and receiving the resulting NVMe completions may be unaware of the multiple fabric queue sets.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: January 11, 2022
    Assignee: Pensando Systems, Inc.
    Inventors: Balakrishnan Raman, Chaitanya Huilgol, Harinadh Nagulapalli, Murty Subba Rama Chandra Kotha, Sanjay Shanbhogue, Varada Raja Kumar Kari, Vishwas Danivas
  • Publication number: 20220005822
    Abstract: A method of forming a microelectronic device comprises forming a stack structure. Pillar structures are formed to vertically extend through the stack structure. At least one trench and additional trenches are formed to substantially vertically extend through the stack structure. Each of the additional trenches comprises a first portion having a first width, and a second portion at a horizontal boundary of the first portion and having a second width greater than the first width. A dielectric structure is formed within the at least one trench and the additional trenches. The dielectric structure comprises at least one angled portion proximate the horizontal boundary of the first portion of at least some of the additional trenches. The at least one angled portion extends at an acute angle to each of a first direction and a second direction transverse to the first direction. Microelectronic devices and electronic systems are also described.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 6, 2022
    Inventors: Raja Kumar Varma Manthena, Anilkumar Chandolu
  • Publication number: 20220004898
    Abstract: The present disclosure relates to methods, systems, and non-transitory computer-readable media for determining a cognitive, action-selection bias of a user that influences how the user will select a sequence of digital actions for execution of a task. For example, the disclosed systems can identify, from a digital behavior log of a user, a set of digital action sequences that correspond to a set of sessions for a task previously executed by the user. The disclosed systems can utilize a machine learning model to analyze the set of sessions to generate session weights. The session weights can correspond to an action-selection bias that indicates an extent to which a future session for the task executed by the user is predicted to be influenced by the set of sessions. The disclosed systems can provide a visual indication of the action-selection bias of the user for display on a graphical user interface.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 6, 2022
    Inventors: Atanu R Sinha, Tanay Asija, Sunny Dhamnani, Raja Kumar Dubey, Navita Goyal, Kaarthik Raja Meenakshi Viswanathan, Georgios Theocharous
  • Publication number: 20210374116
    Abstract: Methods, systems, and apparatuses for improved data storage and data management are described herein. These methods, systems, and apparatuses may efficiently and accurately locate data associated with personal information (PI) within a single database as well as across a large data storage network consisting of numerous, disparate data stores. As an example, a computing device may use a database metadata table to determine a location(s) of PI-associated data across a plurality of databases.
    Type: Application
    Filed: February 5, 2021
    Publication date: December 2, 2021
    Inventors: Raja Kumar Narasimhadevara, Reinaldo José Garcia, Nicholas Stephen Myers
  • Publication number: 20210374145
    Abstract: Methods, systems, and apparatuses for improved data storage and data management are described herein. These methods, systems, and apparatuses may efficiently and accurately locate data associated with personal information (PI) within a single database as well as across a large data storage network consisting of numerous, disparate data stores. As an example, a computing device may use a database metadata table to determine a location(s) of PI-associated data across a plurality of databases.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 2, 2021
    Inventors: Nicholas S. Myers, Raja Kumar Narasimhadevara, James A. Ficarra, JR., Amitkumar A. Patel, Jayson Brooks Hurd, Pramod Dimri, Anupam Mohanta, Chakrapani Velugubantla, John Engler, Joseph K. Zia
  • Publication number: 20190251458
    Abstract: The embodiments herein disclose a system and method for particle swarm optimization and quantile regression-based rule mining for analyzing data sets involving only continuous explanatory variables. The system discloses an architecture for PSO based quantile regression rule mining for determining the prediction intervals (PIs). The system generates ‘if-then’ rules that yield PIs while solving a multiple regression problem having only continuous explanatory variables. The system performs an ensembling process to reduce the size of the rule base to a manageable number based on the quality metrics of prediction intervals. The system comprises a data set, and a rule miner designed to divide the data into deciles based on the descending order of the target attribute variable. PSO is invoked to derive a set of rules for each decile and capture the heteroscedasticity of the distribution of the data with the help of quantile regression, in a non-traditional way.
    Type: Application
    Filed: June 27, 2018
    Publication date: August 15, 2019
    Inventors: VADLAMANI RAVI, GUTHA JAYA KRISHNA, RAJA KUMAR DUBEY
  • Patent number: 9902963
    Abstract: The present disclosure provides a modified microorganism having an enhanced biomass synthesis capacity. The present disclosure also relates to a method for manufacturing a modified microorganism having an enhanced biomass synthesis capacity. The enhanced biomass synthesis capacity is due to the overexpression of the gene capable of inducing DNA repair mechanism. The gene responsible for the DNA repair is overexpressed when DNA damage is most and DNA repair mechanism is required.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: February 27, 2018
    Assignee: Reliance Industries Limited
    Inventors: Venkatesh Prasad, Raja Kumar, Gautam Das, Santanu Dasgupta
  • Publication number: 20160369307
    Abstract: According to an embodiment of the invention, there is provided a method of increasing biomass and lipid content in a micro-organism comprising cloning in a vector an exogenous gene sequence selected from the group comprising Atg1 gene, Atg6 gene, and Atg8 gene sequence wherein the sequence is codon optimized for said micro-organism, for inducing autophagy; introducing the vector containing the gene into the genome of the micro-organism to yield a genetically modified micro-organism; and growing the genetically modified micro-organism in suitable medium. According to another embodiment of the invention there is provided a method of increasing biomass and lipid content in a micro-organism exposed to stress, comprising treating the microorganism with an autophagy inducing agent.
    Type: Application
    Filed: January 9, 2015
    Publication date: December 22, 2016
    Applicant: RELIANCE INDUSTRIES LIMITED
    Inventors: Gautam DAS, Santanu DASGUPTA, Raja KUMAR, Venkatesh PRASAD, Nanjappa DEEPAK, Niraja SONI, Amol DATE, Badrish Ranjitlal SONI, Pasupuleti NAGARJUNA
  • Publication number: 20160333358
    Abstract: The present disclosure provides a modified microorganism having an enhanced biomass synthesis capacity. The present disclosure also relates to a method for manufacturing a modified microorganism having an enhanced biomass synthesis capacity. The enhanced biomass synthesis capacity is due to the overexpression of the gene capable of inducing DNA repair mechanism. The gene responsible for the DNA repair is overexpressed when DNA damage is most and DNA repair mechanism is required.
    Type: Application
    Filed: February 4, 2015
    Publication date: November 17, 2016
    Applicant: RELIANCE INDUSTRIES LIMITED
    Inventors: Venkatesh PRASAD, Raja KUMAR, Gautam DAS, Santanu DASGUPTA
  • Patent number: 8588204
    Abstract: The present invention relates to channel estimation in uplink OFDMA systems and in particular to an efficient channel estimation method involving superimposed training for equalization in uplink OFDMA systems. The method is also directly applicable to the uplink in important linearly pre-coded versions of OFDMA like SC-FDMA. Importantly, the invention provides for the first time iterative time domain least squares based channel estimation method of superimposed training based uplink OFDMA/SC-FDMA wherein the training sequence for such channel estimation is optimal in terms of BER minimization. Hence the method according to the present invention is of improved accuracy and is well suited for practical implementation. The method of the invention can have wide application in various wireless communication systems and enabled devices, cellular systems, handheld devices, computers, PDAs and cell phones and the like.
    Type: Grant
    Filed: February 13, 2010
    Date of Patent: November 19, 2013
    Assignee: The Indian Institute of Technology, Kharagpur
    Inventors: R. V. Raja Kumar, Jinesh P. Nair
  • Patent number: 8457258
    Abstract: The present invention relates to a method for minimizing means square estimation error (MSEE) and bit error rate during channel estimation and equalization between a transmitter and a receiver of an orthogonal frequency division multiplexing (OFDM) systems. The method comprises transmitting from said transmitter to said receiver a training sequence for channel estimation being superimposed onto data at specific pilot to data power ratio (PDPR), receiving the OFDM signals along with the training sequence as an input, cross-correlating said received signal to a specific lag determined by the rms delay spread of the channel, with a specific known training sequence stored in a register, and which is also the sequence that is added to the data at the transmitter in the time domain having a prescribed pilot to data power ratio.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: June 4, 2013
    Assignee: Indian Institute of Technology
    Inventors: Ratnam Varada Raja Kumar, Jinesh Parameshwaran Nair
  • Patent number: 8040790
    Abstract: A system and a method for estimating low complexity bandwidth efficient carrier frequency offset for orthogonal frequency division multiple access (OFDMA) and or single carrier frequency division multiple access (SC-FDMA) uplink transmissions in a communication network systems including a group of subscriber stations, a base station including carrier frequency offset unit. The method steps include transmitting a plurality of null subcarrier signals and data subcarrier signals from plurality of said subscriber stations (SS) to the base station; processing transmitted subcarrier signals at the base station by estimating carrier frequency offset (CFO) by carrier frequency offset unit; selecting the subcarrier signals based on carrier assignment scheme (CAS).
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: October 18, 2011
    Assignee: Indian Institute of Technology
    Inventors: Varada Raja Kumar Ratnam, Sameer Saheerudeen Mohammed
  • Publication number: 20110110445
    Abstract: This invention relates to a Multi-Input Multi-Output Orthogonal Frequency Divisional Multiplexing (MIMO-OFDM) is a transmission technology for many current and next generation wireless communication systems. Carrier Frequency Offset (CFO) Estimation and Correction is one of the most important requirement of the proper reception of MIMO-OFDM Signals. The invention provides a null subcarrier based scheme to accomplish this task. The CFO is estimated by employing the co-variance matrix of the signals on all receiving antennas with a cost function which minimizes the energy falling on the null subcarrier locations due to frequency offset. The proposed approach results in very low computational complexity as it uses a two step procedure, making it very attractive for real time applications. Also a new null subcarrier allocation scheme based on Fibonacci series is proposed which ensures a frequency offset estimation range equal to the maximum possible range equal to the OFDM bandwidth.
    Type: Application
    Filed: April 22, 2009
    Publication date: May 12, 2011
    Applicant: INDIAN INSTITUTE OF TECHNOLOGY
    Inventors: S. M. Sameer, R. V. Raja Kumar
  • Publication number: 20110007829
    Abstract: The present invention relates to a method for minimizing means square estimation error (MSEE) and bit error rate during channel estimation and equalization between a transmitter and a receiver of an orthogonal frequency division multiplexing (OFDM) systems. The method comprises transmitting from said transmitter to said receiver a training sequence for channel estimation being superimposed onto data at specific pilot to data power ratio (PDPR), receiving the OFDM signals along with the training sequence as an input, cross-correlating said received signal to a specific lag determined by the rms delay spread of the channel, with a specific known training sequence stored in a register, and which is also the sequence that is added to the data at the transmitter in the time domain having a prescribed pilot to data power ratio.
    Type: Application
    Filed: September 3, 2008
    Publication date: January 13, 2011
    Applicant: INDIAN INSTITUTE OF TECHNOLOGY
    Inventors: Ratnam Varada Raja Kumar, Jinesh Parameshwaran Nair