Dilip S Gokhale

US Patent:

7366134, Apr 29, 2008

Filed:

Aug 17, 2001

Appl. No.:

10/362560

Inventors:

Pratik Bose - Bethesda MD, US
Dilip S. Gokhale - Montgomery Village MD, US
Ajai Kaul - Germantown MD, US
Udayan Narayan Borkar - Germantown MD, US

Assignee:

Comsat Corporation - Bethesda MD

International Classification:

H04Q 7/00

US Classification:

370329, 370348, 370468

Abstract:

In a multiple-user network communication system such as a satellite-based system, or in cable or wireless systems, the system resources, such as bandwidth, code allocation, and or slot timing, are allocated to users based in part on their class of service. The allocation provides for immediate allocation of the requested resources to a user having a verified high class of service so long as the resources are abatable or can be made available by tapping a resource reserve. If only a portion of the requested resources are available, they are made available immediately. From time to time, the resources available to at least one class of service are allocated among the users of that class of service, either equally, equally up to the requested resources, equitably, or in some systematic manner.

US Patent:

8248936, Aug 21, 2012

Filed:

Oct 28, 2009

Appl. No.:

12/588811

Inventors:

Anshul Kantawala - Frederick MD, US
Dilip S. Gokhale - Gaithersburg MD, US
Stephen F. Bush - Latham NY, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

H04L 12/26
H04J 3/22

US Classification:

370232, 370252, 370468

Abstract:

An IP multicast broadcast device, an IP multicast receiver device, and a method of congestion control in reliable IP multicast are described that mitigate the impact of signal blockage in radio-based IP multicast networks. In one example multicast network, the IP multicast broadcast device, and the IP multicast receiver devices may be configured to support an IGMP-based multicast protocol in which a NORM protocol, a congested packet marking protocol, e. g. , such as the ECN protocol described above, and a router congestion prediction protocol, e. g. , such as the RED protocol, have been implemented. In addition, the implemented NORM protocol may implement a TCP congestion control algorithm that generates adjusted transmission rates based, at least in part, on a count of ECN congestion marked packets and a count of dropped packets at a selected receiver. As a result, the generated transmission rates are not unduly affected blockage of the radio-based transmission signal.

US Patent:

20020003776, Jan 10, 2002

Filed:

Apr 30, 2001

Appl. No.:

09/844075

Inventors:

Dilip Gokhale - Montgomery Village MD, US
Udayan Borkar - Fairfax VA, US
Radhakrishnan Haridasan - Germantown VA, US

International Classification:

H04L012/56
H04J003/22

US Classification:

370/236000, 370/395510, 370/467000, 370/319000, 370/401000

Abstract:

A Terrestrial Satellite Interworking Unit (TSIU) is provided for achieving seamless integration of a terrestrial ATM network with a satellite ATM network. In particular, the TSIU in incorporated within a gateway for interconnecting a COTS ATM switch communicably linked to the terrestrial ATM network and a satellite modem communicably linked to the satellite ATM network. The TSIU provides traffic and resource management functions (such as DAMA, congestion control, and jitter removal), signaling interworking functions, and satellite domain-specific functions (such as data encryption/decryption, control channel ciphering, and gateway authentication).

US Patent:

20050002375, Jan 6, 2005

Filed:

May 7, 2004

Appl. No.:

10/840387

Inventors:

Dilip Gokhale - Montgomery Village MD, US
Ajai Kaul - Germantown MD, US
Udayan Borkar - Sunnyvale CA, US

International Classification:

H04B007/212

US Classification:

370347000

Abstract:

This invention relates to a system comprising resource management architecture that meets the requirements of supporting hierarchical SLA based services with QoS commitments in multi-frequency TDMA based wireless environments. Specifically, this architecture provides the capability of allocating resources to an end-user terminal, meeting end-user requirements such as the multitude of traffic classes of service, traffic quality of service, service level commitments, end-user terminal location within the coverage area, and dynamically changing propagation conditions. More specifically, this invention provides a resource management architecture enabling a single end-user terminal to transmit bursts with multiple modulation types, symbol rates, and coding rates within a single TDMA frame

US Patent:

58155066, Sep 29, 1998

Filed:

Jun 24, 1996

Appl. No.:

8/668822

Inventors:

Dilip Gokhale - Gaithersburg MD

Assignee:

Comsat Corporation - Bethesda MD

International Classification:

H04J 312

US Classification:

370524

Abstract:

In a mobile satellite communication system including a land-earth station which communicates with a mobile earth station via a satellite, a method is employed for providing an overlay short messaging service. According to the method, a short messaging service is selected. In addition, a short message is transmitted from one of the land earth station and the mobile earth station via the satellite to the other. The short message is transmitted in one of a plurality of out-of-band signalling channels. The transmission occurs at a time when no signalling information is being transmitted.

US Patent:

56006535, Feb 4, 1997

Filed:

Sep 30, 1994

Appl. No.:

8/315485

Inventors:

Dattakumar M. Chitre - Silver Spring MD
Dilip S. Gokhale - Gaithersburg MD
Thomas Henderson - Bethesda MD
John A. Lunsford - Gaithersburg MD
Neville Mathews - Derwood MD

Assignee:

Comsat Corporation - Bethesda MD

International Classification:

H04L 100

US Classification:

370474

Abstract:

In an asynchronous transfer mode (ATM) system, interleaved cells are formed at the transmit end by combining into each interleaved cell certain bits from each of plural different original ATM cells, the interleaved cells are transmitted over the communications link, and then deinterleaved at the receive end. Any bursty errors occurring on the communications link will, after deinterleaving, be spread out over multiple original ATM cells, maximizing the error correction for ATM cells and error detection for AAL capability and minimizing loss of data. The C1 byte in the Physical Layer Convergence Protocol (PLCP), which indicates the location of end of the PLCP frame, is protected against the burst errors by replication of C1 byte through inserting them in the growth bytes Z1 through Z4.

US Patent:

20200259739, Aug 13, 2020

Filed:

Feb 5, 2020

Appl. No.:

16/783051

Inventors:

- Bethesda MD, US
Dilip Shyamsundar GOKHALE - Germantown MD, US
Piya Seth BHASKAR - North Potomac MD, US

International Classification:

H04L 12/703
H04L 12/66
H04L 12/803
H04L 12/851
H04B 7/195
H04L 12/707
H04L 12/24
H04L 12/751

Abstract:

A communication system includes a satellite constellation, one or more gateways and a network controller. The satellite constellation includes multiple satellites to facilitate communication between a number of user terminals (UTs). Each gateway communicates with one or more of the satellites. The network controller controls operation of the satellites, the gateways and the UTs. The satellites, the UTs, the gateways and the network controller include hardware that may also be software-defined network (SDN) enabled to ensure a persistent end-to-end data packet forwarding including proactive updates and reactive updates to forwarding tables. The proactive updates handle deterministic and time-synchronized link connectivity changes and the reactive updates handle ad hoc link connectivity changes.

Address:

11429 Seneca Frst Cir, Germantown, MD 20876

VIN:

4T1BE46K39U330937

Make:

TOYOTA

Model:

CAMRY

Year:

2009