Manoj K Gupta

US Patent:

8596954, Dec 3, 2013

Filed:

Jun 28, 2011

Appl. No.:

13/521793

Inventors:

Manoj K. Gupta - Houston TX, US
Jose L. Gilarranz - Katy TX, US
Steven Nove - Houston TX, US
Kenneth Devito - Rockport TX, US

Assignee:

Dresser-Rand Company - Olean NY

International Classification:

F04D 25/00
F04D 29/10

US Classification:

415 1, 415112, 415230

Abstract:

A compressor is disclosed having a shaft seal assembly and system that allows a high-pressure compressor to settle-out at a lower pressure level during shutdown. The seal assembly may be disposed about a portion of the shaft and define a blow-down seal chamber, the seal assembly including one or more gas seals in fluid communication with the blow-down seal chamber. A blow-down line is communicably coupled to the blow-down seal chamber to reference the blow-down seal chamber to a low pressure reference, such as a separate centrifugal compressor, or the like. Referencing the blow-down seal chamber to the low pressure reference reduces the required sealing pressure of the one or more gas seals. A valve may be disposed in the blow-down line and configured to regulate a flow of process gas leakage through the blow-down line.

US Patent:

20180213406, Jul 26, 2018

Filed:

Mar 20, 2018

Appl. No.:

15/925843

Inventors:

- Sunnyvale CA, US
Manoj Gupta - Santa Clara CA, US
Parthasarathy Narasimhan - Saratoga CA, US

International Classification:

H04W 16/00
H04W 24/02
H04W 48/20

Abstract:

According to one embodiment of the invention, a non-transitory computer readable medium comprising instructions which, when executed by one or more hardware processors, cause performance of operations comprising entering, by a first access point associated with a wireless network, a first mode for collecting network data from one or more access points associated with the wireless network, entering, by the first access point, a second mode for transmitting data to and from one or more client devices associated with the wireless network, and when a number of access points associated with the wireless network is greater than or equal to a number of channels of the wireless network, (i) collecting, by the first access point, network data of a first channel of the wireless network and (ii) receiving, by the first access point, network data of a second channel of the wireless network from a network coordination device is shown.

US Patent:

20160227473, Aug 4, 2016

Filed:

Jan 29, 2015

Appl. No.:

14/609218

Inventors:

- Sunnyvale CA, US
Manoj Gupta - Santa Clara CA, US
Parthasarathy Narasimhan - Saratoga CA, US

International Classification:

H04W 48/16
H04W 16/00
H04W 8/00

Abstract:

According to one embodiment of the invention, a non-transitory computer readable medium comprising instructions which, when executed by one or more hardware processors, cause performance of operations comprising entering, by a first access point associated with a wireless network, a first mode for collecting network data from one or more access points associated with the wireless network, entering, by the first access point, a second mode for transmitting data to and from one or more client devices associated with the wireless network, and when a number of access points associated with the wireless network is greater than or equal to a number of channels of the wireless network, (i) collecting, by the first access point, network data of a first channel of the wireless network and (ii) receiving, by the first access point, network data of a second channel of the wireless network from a network coordination device is shown.

US Patent:

20160127947, May 5, 2016

Filed:

Oct 30, 2014

Appl. No.:

14/528087

Inventors:

- Sunnyvale CA, US
Manoj Gupta - Santa Clara CA, US

International Classification:

H04W 28/04
H04W 72/08

Abstract:

A method is described for intelligently toggling request-to-send/clear-to-send (RTS/CTS) mechanisms on and off for a channel between an access point and a client device. In particular, the method may determine one or more characteristics related to the transmission of frames and toggle RTS/CTS based on these characteristics. The characteristics may describe (1) the airtime used to transmit frames, (2) the data rate used to transmit frames, (3) traffic measurements on the wireless channel between the access point and the client device, (4) overlapping basic service set traffic measurements, and (5) the number of data units included in frames to be transmitted. By toggling RTS/CTS on and off based on network/channel and frame conditions/characteristics, the method ensures that RTS/CTS is enabled when frame collisions are likely and/or channel capacity is low and disabled when frame collisions are unlikely and the overhead associated with RTS/CTS outweighs the potential benefits.

US Patent:

20160036572, Feb 4, 2016

Filed:

Jul 29, 2014

Appl. No.:

14/445891

Inventors:

- Sunnyvale CA, US
Manoj Gupta - Santa Clara CA, US

International Classification:

H04L 5/00
H04W 16/28

Abstract:

The present disclosure discloses a system and method for dynamic control of channel sounding for transmit beamforming. Generally, sounding frames are periodically transmitted by a network device to a particular device at a first sounding interval. First feedback information is received from the particular device. The first feedback information corresponds to the sounding frames transmitted at the first sounding interval. Based on one or more current conditions included in the feedback information, a second sounding interval is selected to transmit the sounding frames to the particular device. The sounding frames are periodically transmitted to the particular device at the second sounding interval. Second feedback information is received from the particular device. The second feedback information corresponds to the sounding frames transmitted at the second sounding interval.

US Patent:

20150222527, Aug 6, 2015

Filed:

Jan 31, 2014

Appl. No.:

14/170529

Inventors:

- SUNNYVALE CA, US
Manoj Gupta - Santa Clara CA, US
Santashil PalChaudhuri - West Bengal, IN

Assignee:

ARUBA NETWORKS INC. - Sunnyvale CA

International Classification:

H04L 12/725
H04L 12/853
H04L 12/801
H04W 48/20

Abstract:

A non-transitory computer readable medium includes instructions which, when executed by one or more hardware processors, cause performance of operations including determining a priority level for an Access Point (AP). Subsequent to determining the priority level for the AP, the instructions further cause performance of operations including receiving multiple packets, determining one or more transmission parameters for transmitting the packets based at least in part on the priority level of the AP, and transmitting the packets using the one or more transmission parameters that were determined based at least in part on the priority level of the AP.

US Patent:

20150117180, Apr 30, 2015

Filed:

Oct 25, 2013

Appl. No.:

14/063444

Inventors:

- Sunnyvale CA, US
Manoj Gupta - Santa Clara CA, US

Assignee:

Aruba Networks, Inc. - Sunnyvale CA

International Classification:

H04L 12/24

US Classification:

370221

Abstract:

According to one embodiment of the disclosure, a non-transitory computer readable medium is described for an network device, where the medium comprising instructions which, when executed by one or more hardware processors, cause performance of a number of operations. These operations include configuring a first network device to provide network access to a client device using a first Basic Service Set Identification (BSSID) and determining that the first network device is not responsive. Based on determining that the first network device is not responsive, the one or more hardware processors further configure a second network device to provide the network access to the client device using the same first BSSID that was previously used by the first network device without the client device disassociating with the first BSSID.

US Patent:

20140191475, Jul 10, 2014

Filed:

Mar 23, 2012

Appl. No.:

14/005592

Inventors:

Manoj K. Gupta - Houston TX, US
Steven Nove - Houston TX, US
Thomas Soulas - Houston TX, US
Krishnaswamy Ramesh - Katy TX, US
Glenn Grosso - Olean NY, US

Assignee:

DRESSER-RAND COMPANY - Olean NY

International Classification:

F01D 11/02

US Classification:

277301, 277411

Abstract:

A seal for a turbomachine is disclosed. The seal assembly includes a rotatable shaft having a stepped outer circumferential surface that defines one or more annular protrusions axially-spaced thereon. A seal is radially-offset dially-offset from the rotatable shaft and has one or more annular recesses that extend radially-outward from the inner circumferential surface of the seal. A plurality of holes are defined in both the inner circumferential surface and the one or more annular recesses of the seal, the one or more annular recesses being axially-spaced from each other and configured to receive the one or more annular protrusions in an interlocking fit.