Ankitkumar N Patel, 39Guntersville, AL

2013021, Aug 22, 2013

Aug 17, 2012

13/588365

Ankitkumar N. Patel - East Brunswick NJ, US
Philip Nan Ji - Plainsboro NJ, US
Yoshiaki Aono - Tokyo, JP
Daisuke Taniguchi - Tokyo, JP

NEC LABORATORIES AMERICA, INC. - Princeton NJ

H04J 14/02

398 49

A joint-optimization method addresses the generalized routing and wavelength assignment problem with variable number of combined 1+1 dedicated and shared connections. The inventive method enables a solution in time that is polynomial of the input size. Thus, the time complexity of the joint-optimization method is significantly less than that of existing methods.

2013021, Aug 22, 2013

Aug 17, 2012

13/588403

Ankitkumar N. Patel - East Brunswick NJ, US
Philip Nan Ji - Plainsboro NJ, US
Yoshiaki Aono - Tokyo, JP
Daisuke Taniguchi - Tokyo, JP

NEC Laboratories America, Inc. - Princeton NJ

H04Q 11/00

398 49

The inventive 2-step-optimization procedure that addresses the generalized routing and wavelength assignment problem with variable number of combined 1+1 dedicated and shared connections for the first time. The proposed procedure results a solution in time that is polynomial of the input size. Thus, the time complexity of the 2-step-optimization procedure is significantly less than that of existing methods.

2013034, Dec 26, 2013

Jun 12, 2013

13/915874

Maria Ioanna Angelou - Agia Paraskevi, GR
Ankitkumar Patel - Monmouth Junction NJ, US
Milorad Cvijetic - Tucson AZ, US
Philip Nan Ji - Plainsboro NJ, US
Ting Wang - West Windsor NJ, US

NEC LABORATORIES AMERICA, INC. - Princeton NJ

H04Q 11/00

398 45

A software-defined (SD) optical network is disclosed. An SD optical line terminal (OLT) includes a global SD controller, one or more SD OLT drivers connected to the global SD controller, and an underlying hardware component connected to each of said one or more SD OLT drivers. An SD optical network unit (ONU) includes a local SD controller, one or more SD optical network unit (ONU) drivers connected to the local SD controller, and an underlying hardware component connected to each of said one or more SD ONU drivers, wherein the local SD controller manages said one or more SD ONU drivers by issuing commands communicated to said one or more SD ONU drivers, and wherein each of said one or more SD ONU drivers implements a required function on the underlying hardware component. Other apparatuses, systems, and methods also are disclosed.

2012025, Oct 4, 2012

Mar 30, 2012

13/435413

Ankitkumar N. Patel - East Brunswick NJ, US
Philip Nan Ji - Princeton NJ, US
Jason P. Jue - Plano TX, US
Ting Wang - West Windsor NJ, US
Yoshiaki Aono - Tokyo, JP

NEC LABORATORIES AMERICA, INC. - Princeton NJ

H04J 14/02

398 79

A method includes determining a line rate selection for a flexible optical wavelength-division-multiplexing WDM network, determining a traffic routing in said network, and determining simultaneously a channel routing, wavelength assignment and spectrum allocation in said network based on an auxiliary graph.

2015018, Jun 25, 2015

Dec 11, 2014

14/567760

- Princeton NJ, US
Ankitkumar Patel - Monmouth Junction NJ, US
Philip Ji - Cranbury NJ, US
Junqiang Hu - Davis CA, US

H04Q 11/00

Systems and methods for packet switching in a network, including two or more hybrid packet/circuit switching network architectures configured to connect two or more core level switches in the network architectures, the network architectures being controlled and managed using a centralized software defined network (SDN) control plane. An optical ring network may be configured to interconnect the two or more hybrid network architectures, and one or more hybrid electrical/optical packet/circuit switches configured to perform switching and traffic aggregation. One or more high-speed optical interfaces and one or more low-speed electrical/optical interfaces may be configured to transmit data.

2014009, Apr 3, 2014

Oct 2, 2013

14/044177

- Princeton NJ, US
Ankitkumar Patel - Monmouth Junction NJ, US
Philip Nan Ji - Plainsboro NJ, US
Ting Wang - West Windsor NJ, US
Maria Ioanna Angelou - Paraskevi, GR

NEC LABORATORIES AMERICA, INC. - Princeton NJ

H04L 12/24

709223

A generic centralized, software-defined networking configuration for connecting network is defined as a generic multi-layer topology network entities interconnected either vertically or horizontally regardless of the employed network topology/graph). This centralized configuration enables establishment of a connection between any two networking entities by 1) bypassing intermediate protocol layers and 2) eliminating any handshaking between peer elements of the same layer. The centralized software-defined controller notifies in parallel all involved network entities along a connection path to take all necessary actions (i.e. reconfiguration) to establish the new connection. The centralized controller has authority to control only entities that are software-defined SD.

2012021, Aug 23, 2012

Dec 6, 2011

13/311686

Philip N. Ji - Princeton NJ, US
Dayou Qian - Princeton NJ, US
Ankitkumar N. Patel - E. Brunswick NJ, US
Ting Wang - Princeton NJ, US
Yoshiaki Aono - Chiba, JP

NEC CORPORATION - TOKYO
NEC LABORATORIES AMERICA, INC. - Princeton NJ

H04J 14/02

398 48, 398 79, 398 83

Methods and systems for optical signal grooming that include providing one or more input signals, each having one or more modulated subcarriers, to a grooming processor; and grooming the input signals at a subcarrier level with the grooming processor to produce one or more output signals by arranging the modulated subcarriers in the output signals according to a grooming operation such that the modulated subcarriers are not demodulated or decoded prior to grooming.

2012021, Aug 23, 2012

Feb 22, 2012

13/402418

Philip N. Ji - Princeton NJ, US
Dayou Qian - Princeton NJ, US
Ankitkumar N. Patel - E. Brunswick NJ, US
Ting Wang - West Windsor NJ, US
Yoshiaki Aono - Chiba, JP

NEC LABORATORIES AMERICA, INC. - Princeton NJ

H04J 14/02
H04B 10/10

398 83, 398115, 398 79

A method for optical layer traffic grooming includes receiving at least two optical input signals into respective optical receivers, each optical receiver having a photodetector for converting the respective optical input signal into a respective electrical signal; a grooming processor responsive to the electrical signals, the grooming processor being a radio frequency RF processor for processing the electrical signals at a subcarrier level to produce an RF orthogonal frequency division multiplexing signal OFDM signal; and modulating the groomed RF OFDM signal at a transmitter for conversion of the groomed RF OFDM into an optical signal.