Vipul Sharma, 418439 White Poplar Dr, Riverview, FL 33578

7353279, Apr 1, 2008

Jan 8, 2004

10/754828

Naresh Durvasula - Rockville MD, US
Vikrant Binjrajka - Germantown MD, US
Patrick Fisher - Silver Spring MD, US
Rob Torres - New Market MD, US
Douglas Dillon - Gaithersburg MD, US
Vipul Sharma - Germantown MD, US

Hughes Electronics Corporation - El Segundo CA

G06F 15/16
G06F 1/12

709227, 709238, 709250

An approach is provided for providing quality of service reservations in a packet-based radio communication network is disclosed. Connection information including connection rate is extracted from a dataflow from an application requesting connection-oriented service. A request message is sent to a proxy for establishing a connection based on the connection information over the network, wherein the proxy configures a classification rule based on flow criteria from the request message and accordingly initiates establishment of the connection over the network to a destination terminal. A confirmation that the connection can be established is selectively received according to the connection information, wherein the dataflow satisfying the flow criteria from the application is transported over the established connection to the destination terminal. This approach as particular applicability to shared capacity systems, such as a satellite communication system.

7787469, Aug 31, 2010

Jul 12, 2004

10/888757

Vipul Sharma - Germantown MD, US

Altera Corporation - San Jose CA

H04L 12/28
H04L 12/56

37039521, 370230, 370252, 370468

To address the resources of the switch fabric, one embodiment of the invention provides a system and method for measuring the bandwidth of a switch fabric in addition to measuring the bandwidth in the line cards. The measured bandwidth is compared to the requirements of a routing request received in a controller. If the measured bandwidth of all resources, including the switch fabric, are sufficient to route data traffic in accordance with a predetermined SLA, then the controller reserves bandwidth in the switch fabric as well as in the line cards. Data can then be classified and queued in the line cards, and switched in the switch fabric, in accordance with the bandwidth reservations. Competing data traffic cannot rob the bandwidth in the switch fabric from the data having a bandwidth reservation. Thus, latency is controlled, and a predetermined QoS is met.

8112484, Feb 7, 2012

May 31, 2006

11/444593

Vipul Sharma - Sunnyvale CA, US
Steve Lewis - San Jose CA, US

Proofpoint, Inc. - Sunnyvale CA

G06E 1/00
G06E 3/00
H04L 9/00
H04L 29/00

709206, 726 13, 713154, 706 20

A computer-implemented system and method are described for integrating a series of auxiliary spam detection models with a base spam detection model, thereby improving the accuracy and efficiency of the overall spam detection engine. For example, a system according to one embodiment of the invention comprises: a base spam filter feature extractor to detect a first set of features from incoming email messages; one or more auxiliary model feature extractors, each of the auxiliary model feature extractors to detect a different set of features from the incoming email messages; one or more auxiliary detection modules, each of the auxiliary detection modules to receive an indication of the different sets of features detected by a corresponding one of the auxiliary model feature extractor modules and to apply weights to the detected features; and a base spam filter module to receive an indication of the first set of features from the base spam filter feature extractor and the weights generated by the auxiliary detection modules, the base spam filter module to assign base spam filter weights to the first set of features and to determine whether an email message is spam based on the weights of the first set of features and the weights of the different set of features identified by the auxiliary model feature extractors.

8417783, Apr 9, 2013

May 31, 2006

11/444731

Vipul Sharma - Sunnyvale CA, US
John Gardiner Myers - Santa Clara CA, US
Steve Lewis - San Jose CA, US

Proofpoint, Inc. - Sunnyvale CA

G06F 15/16
G06F 17/00

709206, 709224

A system and method for removing ineffective features from a spam feature set. In particular, in one embodiment of the invention, the an entropy value is calculated for the feature set based on the effectiveness of the feature set at differentiating between ham and spam. Features are then removed one at a time and the entropy is recalculated. Features which increase the overall entropy are removed and features which decrease the overall entropy are retained. In another embodiment of the invention, the value of certain type of time consuming features (e. g. , rules) is determined based on both the information gain associated with the features and the time consumed implementing the features. Those features which have relatively low information gain and which consume a significant amount of time to implement are removed from the feature set.

8489689, Jul 16, 2013

May 31, 2006

11/444543

Vipul Sharma - Sunnyvale CA, US
Steve Lewis - San Jose CA, US

Proofpoint, Inc. - Sunnyvale CA

G06F 15/16

709206

A computer-implemented system and method are described for detecting obfuscated words in email messages and using this information to determine whether each email message is spam or valid email (ham). For example, a method according to one embodiment of the invention comprises: providing an obfuscation feature set for detecting obfuscation within email messages, the obfuscation feature set build from a group of obfuscation parameters including a similarity metric, the similarity metric using a set using a set of frequently obfuscated words (FOW) selected from a larger set of obfuscated words; analyzing an email message to detect whether the email message contains features within the obfuscation feature set, wherein the analysis includes determining the similarity of one or more words in the email message with each of the FOWs; generating the similarity metric based on the analysis, the similarity metric providing a relative likelihood that each of the one or more words is obfuscated; firing one or more of the obfuscation detection features based, at least in part, on the value of the similarity metric; analyzing the email message to detect whether the email contains one or more additional spam features unrelated to obfuscation; and determining whether the email message is spam based on the combined obfuscation detection features and the additional spam features.

8539570, Sep 17, 2013

Apr 28, 2008

12/111110

Vipul Sharma - Germantown MD, US
Andrew W. Brandt - Frederick MD, US

Red Hat, Inc. - Raleigh NC

G06F 9/00
G06F 15/16
G06F 17/00

726 12, 726 6, 726 7, 726 22, 718 1

Methods for managing a virtual machine wherein an administration console (AC) () transmits a query to a virtualization server (). The virtualization server includes at least one virtual machine (VM) (). AC () receives, in response to the query, identification of a VM () and establishes an authenticated communications link with a proxy machine () adapted for communicating with the VM (). AC () transmits over the authenticated communications link to proxy machine () the identification of the VM () and performs a management function with respect to the VM ().

2004019, Sep 30, 2004

Mar 26, 2003

10/396433

Vipul Sharma - Germantown MD, US

H04L012/50

370/360000

The invention provides a proxy driver in the control plane of a router or switch providing a centralized Application Program Interface (API) between a switching application and multiple device drivers in the router chassis. Another embodiment of the invention provides a centralized method for enforcing a topology in the control plane of a router. Another embodiment of the invention provides a centralized method in the control plane for the discovery of resources, for example, as cards are added or removed from the router chassis.

2013022, Aug 29, 2013

Feb 29, 2012

13/408776

Vipul Sharma - San Jose CA, US
Eyal Reuveni - San Francisco CA, US
Brian Richard Zambrano - San Francisco CA, US
Luke O'Daniel Groesbeck - San Francisco CA, US

Eventbrite, Inc. - San Francisco CA

G06F 15/16

709204

In one embodiment, a method includes accessing a graph structure comprising a plurality of nodes and edges connecting the nodes, determining a similarity score for each node with respect to a first node, ranking each of the nodes based on their respective similarity score, selecting a set of nodes based on the ranking of each node, and identifying one or more event associated with the selected set of nodes.