Patents by Inventor Sachin Garg

Sachin Garg 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: 9736172
    Abstract: An apparatus and method are disclosed for detecting intrusions in Voice over Internet Protocol systems, without the use of an attack signature database. In particular, the illustrative embodiment is based on the observation that some VoIP-related protocols (e.g., the Session Initiation Protocol [SIP], etc.) are simple enough to be represented by a finite-state machine (FSM) of compact size. A finite-state machine is maintained for each session/node/protocol combination, and any illegal state or state transition—which might be the result of a malicious attack—is flagged as a potential intrusion.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: August 15, 2017
    Assignee: Avaya Inc.
    Inventors: Sachin Garg, Navjot Singh, Akshay Adhikari, Yu-Sung Wu
  • Patent number: 9392422
    Abstract: A system and method are provided for a routing system that enables a tenant service provider to send events to users, using applications, on one or more devices. Events may include be any message or data intended to be sent to one or more users. Specifically, a tenant service provider may send events to users on various devices without the tenant service provider being aware of the device, or type of device, that the user is using. The tenant service provider need not have any knowledge of the specific users that may receive the events sent by the tenant service provider. Thus, a tenant service provider may disseminate events to users on various devices by sending a single message to a routing service. The routing service may then distribute the event to each of the devices and each of the applications each user has selected.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: July 12, 2016
    Assignee: Apollo Education Group, Inc.
    Inventors: Manish Upendran, Joe Koberstein, Bryce Griner, Sachin Garg
  • Publication number: 20160171536
    Abstract: The system may receive an individual transaction record of a purchase at a merchant location. The individual transaction record may be collected at a point of sale. The individual transaction record may also include at least one of a first purchase time, a first purchase location, a first purchase amount, a first merchant category, or a first purchase item. The system may further predict a future purchase based on the individual transaction record and transmit an offer based on the future purchase.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 16, 2016
    Applicant: American Express Travel Related Services Company, Inc.
    Inventors: Pankaj Garg, Sachin Garg, Subhajit Sanyal
  • Patent number: 9178898
    Abstract: An apparatus and method for detecting intrusions in Voice over Internet Protocol systems with distributed stateful intrusion detection. When a Session Initiation Protocol (SIP) signal is received as an application-layer protocol signal, the received application-layer protocol signal is distributed to a first finite-state machine and to a second finite-state machine. A data processing system detects that the application-layer protocol enters a first application-layer protocol state S1 at a first node at a first time, determines whether the application-layer protocol fails to enter a second application-layer protocol state S2 at a second node within ? seconds, a positive real number, and generates a signal that indicates a potential intrusion in response to the determination.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: November 3, 2015
    Assignee: Avaya Inc.
    Inventors: Sachin Garg, Navjot Singh, Yu-Sung Wu
  • Patent number: 9100417
    Abstract: An apparatus and method for detecting potentially-improper call behavior (e.g., SPIT, etc.) are disclosed. The illustrative embodiment of the present invention is based on finite-state machines (FSMs) that represent the legal states and state transitions of communications protocols at nodes during Voice over Internet Protocol (VoIP) calls. In accordance with the illustrative embodiment, a library of FSM execution profiles associated with improper call behavior and a set of rules (or rule base) associated with improper FSM behavior over one or more calls are maintained. When the behavior of one or more finite-state machines during one or more calls matches either an execution profile in the library or a rule in the rule base, an alert is generated.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: August 4, 2015
    Assignee: Avaya Inc.
    Inventors: Sachin Garg, Navjot Singh, Akshay Adhikari, Yu-Sung Wu
  • Patent number: 9031856
    Abstract: Communication between a first issue tracking system and a second issue tracking system is provided. An integration platform is configured to translate an issue tracking ticket from a form recognizable by the first issue tracking system, which can be a component of a customer network, into a form recognizable by the second issue tracking system, which can be a component of a service provider network. A gateway server is provided to control communications between the integration platform and the issue tracking system of the service provider network.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: May 12, 2015
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Prakash Trivedi, Sachin Garg
  • Publication number: 20140273994
    Abstract: A system and method are provided for a routing system that enables a tenant service provider to send events to users, using applications, on one or more devices. Events may include be any message or data intended to be sent to one or more users. Specifically, a tenant service provider may send events to users on various devices without the tenant service provider being aware of the device, or type of device, that the user is using. The tenant service provider need not have any knowledge of the specific users that may receive the events sent by the tenant service provider. Thus, a tenant service provider may disseminate events to users on various devices by sending a single message to a routing service. The routing service may then distribute the event to each of the devices and each of the applications each user has selected.
    Type: Application
    Filed: May 6, 2013
    Publication date: September 18, 2014
    Applicant: Apollo Group, Inc.
    Inventors: Manish Upendran, Joe Koberstein, Bryce Griner, Sachin Garg
  • Publication number: 20130197984
    Abstract: Promoting on-line advertisements in a social network context includes steps of: selecting a parameter on whose value to base a discount to an on-line user; selecting a discount level to use; incentivizing advertisement sharing behavior of the on-line user by offering the discount level to the user along with the on-line advertisement association with the discount; computing a value of the discount; and providing the discount value to the on-line user.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 1, 2013
    Applicant: YAHOO! INC.
    Inventors: Rushi P. Bhatt, Sachin Garg, Shrutivandana Sharma
  • Publication number: 20130013421
    Abstract: Methods and systems are disclosed in which a guaranteed delivery advertisement may be appended with a non-guaranteed delivery advertisement. The guaranteed delivery advertisement may be, for example, a manufacturer or brand advertisement, and the non-guaranteed delivery advertisement may be, for example, a retailer advertisement. The guaranteed delivery advertisement may relate to a particular brand and/or product and the non-guaranteed delivery advertisement may relate to a purchasing opportunity for that particular brand and/or product. The guaranteed delivery advertisement may be selected based on targeting information and the non-guaranteed delivery advertisement may be selected based on factors such as, for example, the manufacturer name, the product name, the product type, a related product, price, availability of the product, discount, location of the retailer, etc.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 10, 2013
    Applicant: Yahoo! Inc.
    Inventors: Shrutivandana Sharma, Sachin Garg
  • Patent number: 8353030
    Abstract: A method is disclosed that enables mitigating at least some of the problems caused by a packet attack. When a first Internet Protocol (IP)-capable device is subjected to a packet attack, it indicates periodically to a second IP-capable device that certain communications with the first device are to be suspended. The periodic transmitting of the indication is performed at a slower rate than the keep-alive mechanism that is normally used to detect loss of connectivity. When the second device receives the transmitted indication, it refrains from transmitting keep-alive messages to the first device for a predetermined interval. Meanwhile, the first device also refrains from transmitting keep-alive messages to the second device for a similar interval. In transmitting the suspend indication, the illustrative embodiment seeks to prevent pairs of communicating devices that are experiencing packet attacks from continuing their operation under the erroneous assumption that each device is unavailable.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: January 8, 2013
    Assignee: Avaya Inc.
    Inventors: Akshay Adhikari, Sachin Garg, Anjur Sundaresan Krishnakumar, Navjot Singh
  • Patent number: 8302179
    Abstract: A method is disclosed that enables the implementation of an embedded firewall at a telecommunications endpoint. In particular, the illustrative embodiment of the present invention addresses the relationship between the application, firewall engine, and packet-classification rules database that are all resident at the endpoint. In the variations of the illustrative embodiment that are described herein, the application: (i) directly communicates with the co-resident firewall engine such as through local message passing, (ii) shares memory with the firewall engine, and (iii) makes socket calls to the operating system that are intercepted by a middleware layer that subsequently modifies the rules database, depending on the socket call. The common thread to these techniques is that the application, firewall engine, and rules database are co-resident at the endpoint, which is advantageous in the implementation of the embedded firewall.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: October 30, 2012
    Assignee: Avaya Inc.
    Inventors: Akshay Adhikari, Sachin Garg, Anjur Sundaresan Krishnakumar, Navjot Singh
  • Patent number: 8144583
    Abstract: A method is disclosed that enables the avoidance of a processor overload of a telecommunications endpoint device that is susceptible to traffic floods. An enhanced network switch sets the speed on one of its data ports as a specific function of the speeds of the devices that are connected to one or more of its other data ports. This behavior is different from that of network switches in the prior art, in which the data rate of a port in the prior art is auto-negotiated to the highest speed that can be supported by the network elements at either end of the port's connection, regardless of the other devices present. By considering the specific devices that are connected, the enhanced network switch is able to limit the amount of traffic that is directed by an upstream device, such as a router, towards a device with limited processor capability, such as a packet-based phone.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: March 27, 2012
    Assignee: Avaya Inc.
    Inventors: Akshay Adhikari, Sachin Garg, Anjur Sundaresan Krishnakumar, Navjot Singh
  • Patent number: 8095699
    Abstract: An interface to transfer data between a host processor and an external coprocessor is provided. The interface may operate in several write modes, in which in a first write mode the write operation is transferred across the interface in two clock cycles and in a second write mode the write operation is transferred across the interface in a single clock cycle. The interface can perform a first read operation initiated by the host processor and a second read operation initiated by the external coprocessor. The interface can include buffers to store read and write operations and clock gates to selectively gate off clock signals provided to the buffers to synchronize transfer of data into and out of the buffers. A selectable priority scheme can be modified to select between priorities that control a preference in transferring operations over the interface when both read and write operations are queued for transfer.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: January 10, 2012
    Assignee: MediaTek Inc.
    Inventors: Sachin Garg, Paul D. Krivacek
  • Patent number: 8073806
    Abstract: A technique is disclosed that enables the run-time behavior of a data-processing system to be analyzed and, in many cases, to be predicted. In particular, the illustrative embodiment of the present invention comprises i) transforming the messages that constitute an unstructured log into a numerical series and ii) applying a time-series analysis on the resultant series for the purpose of pattern detection. Indeed, it is recognized in the illustrative embodiment that the problem really is to detect patterns that depict aspects of system behavior, regardless of the textual content of the individual log messages. In other words, by analyzing the totality of the messages in the log or logs—as opposed to looking for pre-defined patterns of the individual messages—system behavior can be mapped and understood. The mapping helps in characterizing the system for the purposes of predicting failure, determining the time required to reach stability during failure recovery, and so forth.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: December 6, 2011
    Assignee: Avaya Inc.
    Inventors: Sachin Garg, Navjot Singh, Shalini Yajnik, Ranjith Vasireddy, Sridhar Vasireddy, legal representative
  • Patent number: 8055903
    Abstract: A method is disclosed that enables the transmission of a digital message along with a corresponding information signal, such as audio or video. The supplemental information contained in digital messages can be used for a variety of purposes, such as enabling or enhancing packet authentication. In particular, a telecommunications device that is processing an information signal from its user, such as a speech signal, encrypts the information signal by performing a bitwise exclusive-or of an encryption key stream with the information signal stream. The device, such as a telecommunications endpoint, then intersperses the bits of the digital message throughout the encrypted signal in place of those bits overwritten, in a process referred to as “watermarking.” The endpoint then transmits the interspersed digital message bits as part of a composite signal that also comprises the encrypted information bits. No additional bits are appended to the packet to be transmitted, thereby addressing compatibility issues.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: November 8, 2011
    Assignee: Avaya Inc.
    Inventors: Akshay Adhikari, Sachin Garg, Anjur Sundaresan Krishnakumar, Navjot Singh
  • Patent number: 8054969
    Abstract: A method is disclosed that enables the transmission of a digital message along with a corresponding media information signal, such as audio or video. A telecommunications device that is processing the information signal from its user, such as a speech signal, encodes the information signal by using a model-based compression coder. One such device is a telecommunications endpoint. Then, based on an evaluation of the perceptual significance of each encoded bit, or on some other meaningful characteristic of the signal, the endpoint's processor: (i) determines which encoded bits can be overwritten; and (ii) intersperses the digital message bits throughout the encoded signal in place of the overwritten bits. The endpoint then transmits those digital message bits as part of the encoded information signal. In this way, no additional bits are appended to the packet to be transmitted, thereby addressing the issue of compatibility with existing protocols and firewalls.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: November 8, 2011
    Assignee: Avaya Inc.
    Inventors: Akshay Adhikari, Sachin Garg, Anjur Sundaresan Krishnakumar, Navjot Singh
  • Patent number: 8050199
    Abstract: A call processing system, which may include multiple distributed call center sites, utilizes a local back-off approach to endpoint registration. The call processing system comprises a plurality of endpoints and at least a first server, wherein the endpoints register with the first server in order to send and receive calls in the call processing system. Responsive to an end-to-end connectivity failure or other designated event, a registration process is initiated in the call processing system for a given one of the endpoints. The issuance of at least one message of the sequence for the given endpoint is controlled so as to provide a local random back-off or other local back-off of the controlled message at that endpoint. For example, a second server implemented as an aggregation server may be operative to control the issuance of messages by the endpoints so as to provide a local random back-off for each of the plurality of endpoints by staggering the delivery of failure notifications to the endpoints.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: November 1, 2011
    Assignee: Avaya Inc.
    Inventors: Sachin Garg, Chandra M. R. Kintala, Edward Vincent Naybor, David Thomas Stott
  • Patent number: 8001262
    Abstract: A technique for lessening the likelihood of congestion in a congestible node is disclosed. In accordance with the illustrative embodiments of the present invention, one node—a proxy node—drops protocol data units to lessen the likelihood of congestion in the congestible node. In some embodiments of the present invention, the proxy node receives a metric of a queue at a congestible node and, based on the metric, decides whether to drop protocol data units en route to the congestible node. In some other embodiments of the present invention, the proxy node estimates a metric of a queue at a congestible node and, based on the metric, decides whether to drop protocol data units en route to the congestible node.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: August 16, 2011
    Assignee: Avaya Inc.
    Inventors: Sachin Garg, Martin Kappes
  • Publication number: 20110196803
    Abstract: An evaluation of an external course may be based on course-to-requirement mappings that have been previously established for the target institution. As a result of the evaluation, the external course may be mapped to a particular program requirement for a particular student, which allows the external course to fulfill the particular program requirement at the institution for the particular student. The course evaluation may be automatic or may be performed by a human evaluator. Course-to-requirement mappings may be globally-established, and applicable to all students and applicants of the target institution, or may be applicant-specific, and only applicable to the student for which the mapping was established. Information about both globally-established and applicant-specific course-to-requirement mappings that have been previously established for the institution may be used to evaluate an external course for a particular student.
    Type: Application
    Filed: February 5, 2010
    Publication date: August 11, 2011
    Inventors: John Reynolds, Kurt R. Schedler, Sachin Garg, Balaji Gandhi, Christopher P. Gray
  • Publication number: 20110166927
    Abstract: The present invention provides methods and systems for use in association with an online advertising auction. Advertiser bid information may be obtained, including a maximum amount per impression and a target click through rate (“CTR”). Following serving, if a delivered CTR is equal to or greater than the target CTR, then pricing per impression is at the maximum amount. If, however, the delivered CTR is less than the target CTR, then pricing per impression is at an amount equal to the maximum amount per impression multiplied by the ratio of the delivered CTR to the target CTR.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 7, 2011
    Applicant: Yahoo! Inc.
    Inventors: Chaitanya Bandi, Dinesh Garg, Krishna Pal Singh Rathore, Sachin Garg, Krishna Prasad Chitrapura, Sourangshu Bhattacharya