Patents by Inventor Rajiv Ramachandran

Rajiv Ramachandran 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: 11990119
    Abstract: An interactive system may be implemented in part by an audio device located within a user environment, which may accept speech commands from a user and may also interact with the user by means of generated speech. In order to improve performance of the interactive system, a user may use a separate device, such as a personal computer or mobile device, to access a graphical user interface that lists details of historical speech interactions. The graphical user interface may be configured to allow the user to provide feedback and/or corrections regarding the details of specific interactions.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: May 21, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Gilles Jean Roger Belin, Charles S. Rogers, III, Robert David Owen, Jeffrey Penrod Adams, Rajiv Ramachandran, Gregory Michael Hart
  • Publication number: 20240105605
    Abstract: A semiconductor structure includes a front-end-of-line level including a plurality of field effect transistors electrically connected to a back-end-of-line interconnect level. The back-end-of-line interconnect level is located on a first side of the front-end-of-line level. A backside power rail is embedded within a backside interlayer dielectric located on a second side of the front-end-of-line level opposing the first side of the front-end-of-line level. The backside power rail is electrically connected to at least one field effect transistor of the plurality of field effect transistors. At least one backside field effect transistor is formed on a first semiconductor layer disposed, at least in part, above a passive device region. A first side of the passive device region is in contact with the first semiconductor layer and a second side of the passive device region, opposing the first side, is in contact with the back-end-of-line interconnect level.
    Type: Application
    Filed: September 23, 2022
    Publication date: March 28, 2024
    Inventors: Ruilong Xie, Daniel Charles Edelstein, Rajiv Joshi, Ravikumar Ramachandran, Eric Miller
  • Patent number: 11775986
    Abstract: A method and apparatus for facilitating the utilization of virtual payment card data is provided. In various embodiments, virtual payment card data is received by a centralized e-procurement service directly from buyer or issuer entities participating in the service. In various embodiments, secure processes protect the security of virtual payment card data on the centralized service by actively monitoring the service for abnormal view and access behaviors of the virtual payment card data. In various embodiments, viewing interfaces for the e-procurement service are actively and responsively altered to ensure secure utilization of the virtual payment card data. In various embodiments, preventative actions are taken to actively alter virtual payment card data or access methods for entities utilizing the e-procurement service to protect the integrity and security of virtual payment card data.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: October 3, 2023
    Assignee: Coupa Software Incorporated
    Inventors: Ahmad Sadeddin, Tushar Rawal, Alan Cima, Rohit Jalisatgi, Rajiv Ramachandran
  • Patent number: 11657804
    Abstract: Features are disclosed for detecting words in audio using contextual information in addition to automatic speech recognition results. A detection model can be generated and used to determine whether a particular word, such as a keyword or “wake word,” has been uttered. The detection model can operate on features derived from an audio signal, contextual information associated with generation of the audio signal, and the like. In some embodiments, the detection model can be customized for particular users or groups of users based usage patterns associated with the users.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: May 23, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Rohit Prasad, Kenneth John Basye, Spyridon Matsoukas, Rajiv Ramachandran, Shiv Naga Prasad Vitaladevuni, Bjorn Hoffmeister
  • Patent number: 11657451
    Abstract: A programmed computer-implemented method allows enterprises to pay transactions using a virtual credit card at the time of an approved purchase order. The approach maintains corporate controls relating to requisitions and purchase orders, eliminates the need for electronic invoicing, and automates the accounting and reconciliation of virtual credit card charges. For example, a particular line item in a card statement, representing a particular charge event, is automatically reconciled to the correct purchase order. For another example, each charge represented in a card statement can be associated with the supplier that is identified in a corresponding PO. Therefore, a computer graphical user interface (GUI) can show vendor identification at any time, whereas most buyers are not able to see the true vendor in spend data on a credit card charge, as the vendor is typically just represented as the issuing bank.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: May 23, 2023
    Assignee: Coupa Software Incorporated
    Inventors: Adam Alphin, Rohit Jalisatgi, Rajiv Ramachandran, Matt Pasquini
  • Patent number: 11182849
    Abstract: A programmed computer-implemented method allows enterprises to pay transactions using a virtual credit card at the time of an approved purchase order. The approach maintains corporate controls relating to requisitions and purchase orders, eliminates the need for electronic invoicing, and automates the accounting and reconciliation of virtual credit card charges. For example, a particular line item in a card statement, representing a particular charge event, is automatically reconciled to the correct purchase order. For another example, each charge represented in a card statement can be associated with the supplier that is identified in a corresponding PO. Therefore, a computer graphical user interface (GUI) can show vendor identification at any time, whereas most buyers are not able to see the true vendor in spend data on a credit card charge, as the vendor is typically just represented as the issuing bank.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: November 23, 2021
    Assignee: Coupa Software Incorporated
    Inventors: Adam Alphin, Rohit Jalisatgi, Rajiv Ramachandran, Matt Pasquini
  • Publication number: 20210134276
    Abstract: Features are disclosed for detecting words in audio using contextual information in addition to automatic speech recognition results. A detection model can be generated and used to determine whether a particular word, such as a keyword or “wake word,” has been uttered. The detection model can operate on features derived from an audio signal, contextual information associated with generation of the audio signal, and the like. In some embodiments, the detection model can be customized for particular users or groups of users based usage patterns associated with the users.
    Type: Application
    Filed: November 5, 2020
    Publication date: May 6, 2021
    Inventors: Rohit Prasad, Kenneth John Basye, Spyridon Matsoukas, Rajiv Ramachandran, Shiv Naga Prasad Vitaladevuni, Bjorn Hoffmeister
  • Patent number: 10950220
    Abstract: An interactive system may be implemented in part by an audio device located within a user environment, which may accept speech commands from a user and may also interact with the user by means of generated speech. In order to improve performance of the interactive system, a user may use a separate device, such as a personal computer or mobile device, to access a graphical user interface that lists details of historical speech interactions. The graphical user interface may be configured to allow the user to provide feedback and/or corrections regarding the details of specific interactions.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 16, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Gilles Jean Roger Belin, Charles S. Rogers, III, Robert David Owen, Jeffrey Penrod Adams, Rajiv Ramachandran, Gregory Michael Hart
  • Patent number: 10832662
    Abstract: Features are disclosed for detecting words in audio using contextual information in addition to automatic speech recognition results. A detection model can be generated and used to determine whether a particular word, such as a keyword or “wake word,” has been uttered. The detection model can operate on features derived from an audio signal, contextual information associated with generation of the audio signal, and the like. In some embodiments, the detection model can be customized for particular users or groups of users based usage patterns associated with the users.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: November 10, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Rohit Prasad, Kenneth John Basye, Spyridon Matsoukas, Rajiv Ramachandran, Shiv Naga Prasad Vitaladevuni, Bjorn Hoffmeister
  • Publication number: 20200067791
    Abstract: Methods and apparatus for a client account versioning metadata manager for cloud computing environments are disclosed. A system includes a plurality of resources, a plurality of service managers coordinating respective multitenant network-accessible services, and a metadata manager. The metadata manager receives a multi-service account state view request. The metadata manager generates a representation of an administrative state of a client account indicated by the request with respect a plurality of services accessible by the client account, as of a time indicated in the request. The administrative state with respect to a particular service comprises an indication of an assignment to the client account of resources participating in implementation of the particular service.
    Type: Application
    Filed: November 1, 2019
    Publication date: February 27, 2020
    Applicant: Amazon Technologies, Inc.
    Inventors: Gregory B. Roth, James E. Scharf, JR., Rajiv Ramachandran, Anders Samuelsson, Keith A. Carlson
  • Patent number: 10469330
    Abstract: Methods and apparatus for a client account versioning metadata manager for cloud computing environments are disclosed. A system includes a plurality of resources, a plurality of service managers coordinating respective multitenant network-accessible services, and a metadata manager. The metadata manager receives a multi-service account state view request. The metadata manager generates a representation of an administrative state of a client account indicated by the request with respect a plurality of services accessible by the client account, as of a time indicated in the request. The administrative state with respect to a particular service comprises an indication of an assignment to the client account of resources participating in implementation of the particular service.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: November 5, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Gregory B. Roth, James E. Scharf, Jr., Rajiv Ramachandran, Anders Samuelsson, Keith A. Carlson
  • Patent number: 10460719
    Abstract: An interactive system may be implemented in part by an audio device located within a user environment, which may accept speech commands from a user and may also interact with the user by means of generated speech. In order to improve performance of the interactive system, a user may use a separate device, such as a personal computer or mobile device, to access a graphical user interface that lists details of historical speech interactions. The graphical user interface may be configured to allow the user to provide feedback and/or corrections regarding the details of specific interactions.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: October 29, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Gilles Jean Roger Belin, Charles S. Rogers, III, Robert David Owen, Jeffrey Penrod Adams, Rajiv Ramachandran, Gregory Michael Hart
  • Patent number: 10102845
    Abstract: Features are disclosed for determining a definition or value of a nonstandard term. A user utterance may be processed into one or more candidate transcriptions. An interpretation of the utterance can be generated from the transcriptions. If the transcription includes a word, phrase, or term that is not recognized or is used in a nonstandard way, one or more data stores may be queried regarding the proper value or definition of the term. If a definition or value is not available in the data stores, the user may be prompted to provide one. The user-supplied definition can be saved for future use, and may be used as a general definition of the term for other users.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: October 16, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Weam Abu Zaki, Ying Shi, Rajiv Ramachandran
  • Patent number: 9922639
    Abstract: An interactive system may be implemented in part by an audio device located within a user environment, which may accept speech commands from a user and may also interact with the user by means of generated speech. In order to improve performance of the interactive system, a user may use a separate device, such as a personal computer or mobile device, to access a graphical user interface that lists details of historical speech interactions. The graphical user interface may be configured to allow the user to provide feedback and/or corrections regarding the details of specific interactions.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: March 20, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Gilles Jean Roger Belin, Charles S. Rogers, III, Robert David Owen, Jeffrey Penrod Adams, Rajiv Ramachandran, Gregory Michael Hart
  • Publication number: 20180012593
    Abstract: Features are disclosed for detecting words in audio using contextual information in addition to automatic speech recognition results. A detection model can be generated and used to determine whether a particular word, such as a keyword or “wake word,” has been uttered. The detection model can operate on features derived from an audio signal, contextual information associated with generation of the audio signal, and the like. In some embodiments, the detection model can be customized for particular users or groups of users based usage patterns associated with the users.
    Type: Application
    Filed: July 3, 2017
    Publication date: January 11, 2018
    Inventors: Rohit Prasad, Kenneth John Basye, Spyridon Matsoukas, Rajiv Ramachandran, Shiv Naga Prasad Vitaladevuni, Bjorn Hoffmeister
  • Patent number: 9697828
    Abstract: Features are disclosed for detecting words in audio using environmental information and/or contextual information in addition to acoustic features associated with the words to be detected. A detection model can be generated and used to determine whether a particular word, such as a keyword or “wake word,” has been uttered. The detection model can operate on features derived from an audio signal, contextual information associated with generation of the audio signal, and the like. In some embodiments, the detection model can be customized for particular users or groups of users based usage patterns associated with the users.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: July 4, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Rohit Prasad, Kenneth John Basye, Spyridon Matsoukas, Rajiv Ramachandran, Shiv Naga Prasad Vitaladevuni, Bjorn Hoffmeister
  • Patent number: 9565260
    Abstract: Methods and apparatus for an account state simulation service for cloud computing environments are disclosed. A system includes a plurality of service managers coordinating respective distributed network-accessible services, and a metadata manager. The metadata manager receives an account state change simulation request, indicating (a) an initial account state of a client account and (b) a collection of operations to be simulated. The metadata manager generates a response to the account change state simulation request, comprising at least one of (a) a representation of an expected end state of the client account reachable as a result of performing the collection of operations (b) an indication of an expected failure of a particular operation of the collection of operations or (c) an estimate of an expected billing amount associated with an implementation of the collection of operations.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: February 7, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Gregory B. Roth, James E. Scharf, Jr., Rajiv Ramachandran, Anders Samuelsson, Keith A. Carlson
  • Patent number: 9443527
    Abstract: A system for controlling multiple devices using automatic speech recognition (ASR) even when the devices may not be capable of performing ASR themselves. A device such as a media player, appliance, or the like may be recognized by a network. The configured controls for the device (such as a remote control or other mechanism) are incorporated into a device control registry which catalogs device command controls. Individual ASR grammars are constructed for the devices so speech commands for those devices may be processed by an ASR device. The ASR device may then process those speech commands and convert them into the appropriate inputs for the controlled device. The inputs may then be sent to the controlled device, resulting in ASR control for non-ASR devices.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: September 13, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Yuzo Watanabe, Arushan Rajasekaram, Rajiv Ramachandran, Mark Steven Baumback
  • Patent number: 9210178
    Abstract: Methods and apparatus for a mixed-mode authorization metadata manager for cloud computing environments are disclosed. A system includes a plurality of service managers coordinating respective distributed multitenant services, and a metadata manager. In response to a metadata request for an authorization entity, the metadata manager identifies a first and a second service manager coordinating services in use by a client account with which the authorization entity is affiliated. The first and second service managers implement respective authorization APIs. The metadata manager provides composite authorization metadata of the authorization entity based at least in part on (a) service authorization metadata provided by each of the first and second service managers and (b) identity authorization metadata provided by an identity manager.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: December 8, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Gregory B. Roth, James E. Scharf, Jr., Rajiv Ramachandran, Anders Samuelsson, Keith A. Carlson
  • Publication number: 20150312356
    Abstract: Methods and apparatus for an account state simulation service for cloud computing environments are disclosed. A system includes a plurality of service managers coordinating respective distributed network-accessible services, and a metadata manager. The metadata manager receives an account state change simulation request, indicating (a) an initial account state of a client account and (b) a collection of operations to be simulated. The metadata manager generates a response to the account change state simulation request, comprising at least one of (a) a representation of an expected end state of the client account reachable as a result of performing the collection of operations (b) an indication of an expected failure of a particular operation of the collection of operations or (c) an estimate of an expected billing amount associated with an implementation of the collection of operations.
    Type: Application
    Filed: July 6, 2015
    Publication date: October 29, 2015
    Applicant: AMAZON TECHNOLOGIES, INC.
    Inventors: GREGORY B. ROTH, JAMES E. SCHARF, Jr., RAJIV RAMACHANDRAN, ANDERS SAMUELSSON, KEITH A. CARLSON