Patents by Inventor Ganesh Sundaram
Ganesh Sundaram 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).
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Publication number: 20180048716Abstract: Systems and methods for triggering service activation include starting a vCPE instance in response to a request for a service, instantiating a service container for the requested service and starting the service in the service container, installing a fast path entry for the service container in a local bridge table, detecting an idle timeout of the service and labeling the local bridge table entry for the corresponding service container as inactive, notifying a cloud services manager that the service container is inactive, and removing the service container.Type: ApplicationFiled: February 15, 2017Publication date: February 15, 2018Applicant: CISCO TECHNOLOGY, INC.Inventors: Muthumayan Madhayyan, Ganesh Sundaram, Chiajen Tsai, Larry T. Chang
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Patent number: 9768016Abstract: Method and devices are disclosed for device manufacture of gallium nitride devices by growing a gallium nitride layer on a silicon substrate using Atomic Layer Deposition (ALD) followed by rapid thermal annealing. Gallium nitride is grown directly on silicon or on a barrier layer of aluminum nitride grown on the silicon substrate. One or both layers are thermally processed by rapid thermal annealing. Preferably the ALD process use a reaction temperature below 550° C. and preferable below 350° C. The rapid thermal annealing step raises the temperature of the coating surface to a temperature ranging from 550 to 1500° C. for less than 12 msec.Type: GrantFiled: June 25, 2014Date of Patent: September 19, 2017Assignee: Ultratech, Inc.Inventors: Andrew M. Hawryluk, Ganesh Sundaram, Ritwik Bhatia
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Publication number: 20170256394Abstract: Method and devices are disclosed for device manufacture of gallium nitride devices by growing a gallium nitride layer on a silicon substrate using Atomic Layer Deposition (ALD) followed by rapid thermal annealing. Gallium nitride is grown directly on silicon or on a barrier layer of aluminum nitride grown on the silicon substrate. One or both layers are thermally processed by rapid thermal annealing. Preferably the ALD process use a reaction temperature below 550° C. and preferable below 350° C. The rapid thermal annealing step raises the temperature of the coating surface to a temperature ranging from 550 to 1500° C. for less than 12 msec.Type: ApplicationFiled: May 18, 2017Publication date: September 7, 2017Inventors: Andrew M. Hawryluk, Ganesh Sundaram, Ritwik Bhatia
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Publication number: 20170250070Abstract: Method and devices are disclosed for device manufacture of gallium nitride devices by growing a gallium nitride layer on a silicon substrate using Atomic Layer Deposition (ALD) followed by rapid thermal annealing. Gallium nitride is grown directly on silicon or on a barrier layer of aluminum nitride grown on the silicon substrate. One or both layers are thermally processed by rapid thermal annealing. Preferably the ALD process use a reaction temperature below 550° C. and preferable below 350° C. The rapid thermal annealing step raises the temperature of the coating surface to a temperature ranging from 550 to 1500° C. for less than 12 msec.Type: ApplicationFiled: May 17, 2017Publication date: August 31, 2017Inventors: Andrew M. Hawryluk, Ganesh Sundaram, Ritwik Bhatia
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Publication number: 20170213718Abstract: Atomic Layer Deposition (ALD) is used for heteroepitaxial film growth at reaction temperatures ranging from 80-400° C. The substrate and film materials are preferably matched to take advantage of Domain Matched Epitaxy (DME). A laser annealing system is used to thermally anneal deposition layer after deposition by ALD. In preferred embodiments, a silicon substrate is overlaid with an AlN nucleation layer and laser annealed. Thereafter a GaN device layer is applied over the AlN layer by an ALD process and then laser annealed. In a further example embodiment, a transition layer is applied between the GaN device layer and the AlN nucleation layer. The transition layer comprises one or more different transition material layers each comprising a AlxGa1-xN compound wherein the composition of the transition layer is continuously varied from AlN to GaN.Type: ApplicationFiled: March 13, 2017Publication date: July 27, 2017Inventors: Ganesh Sundaram, Andrew M. Hawryluk, Daniel Stearns
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Patent number: 9691613Abstract: Method and devices are disclosed for device manufacture of gallium nitride devices by growing a gallium nitride layer on a silicon substrate using Atomic Layer Deposition (ALD) followed by rapid thermal annealing. Gallium nitride is grown directly on silicon or on a barrier layer of aluminum nitride grown on the silicon substrate. One or both layers are thermally processed by rapid thermal annealing. Preferably the ALD process use a reaction temperature below 550° C. and preferable below 350° C. The rapid thermal annealing step raises the temperature of the coating surface to a temperature ranging from 550 to 1500° C. for less than 12 msec.Type: GrantFiled: June 25, 2014Date of Patent: June 27, 2017Assignee: Ultratech, Inc.Inventors: Andrew M. Hawryluk, Ganesh Sundaram, Ritwik Bhatia
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Patent number: 9666432Abstract: Atomic Layer Deposition (ALD) is used for heteroepitaxial film growth at reaction temperatures ranging from 80-400° C. The substrate and film materials are preferably selected to take advantage of Domain Matched Epitaxy (DME). A laser annealing system is used to thermally anneal deposition layers after deposition by ALD. In preferred embodiments a silicon substrate is overlaid with an AIN nucleation layer and laser annealed. Thereafter a GaN device layers is applied over the AIN layer by an ALD process and then laser annealed. In a further example embodiment a transition layer is applied between the GaN device layer and the AIN nucleation layer. The transition layer comprises one or more different transition material layers each comprising a AlxGa1-x compound wherein the composition of the transition layer is continuously varied from AIN to GaN.Type: GrantFiled: September 17, 2014Date of Patent: May 30, 2017Assignee: Ultratech, Inc.Inventors: Ganesh Sundaram, Andrew M. Hawryluk, Daniel Stearns
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Publication number: 20170073812Abstract: Methods of forming 2D metal chalcogenide films using laser-assisted atomic layer deposition are disclosed. A direct-growth method includes: adhering a layer of metal-bearing molecules to the surface of a heated substrate; then reacting the layer of metal-bearing molecules with a chalcogenide-bearing radicalized precursor gas delivered using a plasma to form an amorphous 2D film of the metal chalcogenide; then laser annealing the amorphous 2D film to form a crystalline 2D film of the metal chalcogenide, which can have the form MX or MX2, where M is a metal and X is the chalcogenide. An indirect growth method that includes forming an MO3 film is also disclosed.Type: ApplicationFiled: September 6, 2016Publication date: March 16, 2017Applicant: Ultratech, Inc.Inventor: Ganesh Sundaram
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Publication number: 20160203972Abstract: Atomic Layer Deposition (ALD) is used for heteroepitaxial film growth at reaction temperatures ranging from 80-400° C. The substrate and film materials are preferably selected to take advantage of Domain Matched Epitaxy (DME). A laser annealing system is used to thermally anneal deposition layers after deposition by ALD. In preferred embodiments a silicon substrate is overlaid with an AIN nucleation layer and laser annealed. Thereafter a GaN device layers is applied over the AIN layer by an ALD process and then laser annealed. In a further example embodiment a transition layer is applied between the GaN device layer and the AIN nucleation layer. The transition layer comprises one or more different transition material layers each comprising a AlxGa1-x compound wherein the composition of the transition layer is continuously varied from AIN to GaN.Type: ApplicationFiled: September 17, 2014Publication date: July 14, 2016Applicant: Ultratech, Inc.Inventors: Ganesh Sundaram, Andrew M. Hawryluk, Daniel Stearns
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Publication number: 20160155629Abstract: Method and devices are disclosed for device manufacture of gallium nitride devices by growing a gallium nitride layer on a silicon substrate using Atomic Layer Deposition (ALD) followed by rapid thermal annealing. Gallium nitride is grown directly on silicon or on a barrier layer of aluminum nitride grown on the silicon substrate. One or both layers are thermally processed by rapid thermal annealing. Preferably the ALD process use a reaction temperature below 550° C. and preferable below 350° C. The rapid thermal annealing step raises the temperature of the coating surface to a temperature ranging from 550 to 1500° C. for less than 12 msec.Type: ApplicationFiled: June 25, 2014Publication date: June 2, 2016Applicant: Ultratech, Inc.Inventors: Andrew M. Hawryluk, Ganesh Sundaram, Ritwik Bhatia
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Patent number: 8612944Abstract: Systems and methods of code evaluation for in-order processing are disclosed. In an embodiment, the method includes identifying a first instruction having multiple execution source paths. The method also includes generating a first execution path model identifying an execution order of multiple instructions based on a first condition and generating a second execution path model identifying an execution order of a second instruction based on a second condition. The method includes evaluating at least one of the execution path models to identify a hazard condition.Type: GrantFiled: April 17, 2008Date of Patent: December 17, 2013Assignee: QUALCOMM IncorporatedInventors: Ramakrishnan Ganesh Sundaram, Rajiv B. Narayan, Satya Jayaraman, Ming Hu
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Publication number: 20130254277Abstract: At least one example embodiment discloses a method of controlling communications between first and second user equipments (UEs) by a base station in a network. The method includes obtaining an indication, the indication indicating if the first and second UEs are within a communication range of each other and controlling a direct communication link between the first and second UEs if the first and second UEs are within a communication range of each other. The controlling includes allocating at least a first portion of an uplink channel of the network to the direct communication link.Type: ApplicationFiled: March 21, 2012Publication date: September 26, 2013Applicant: ALCATEL-LUCENT USA INC.Inventors: Subramanian Vasudevan, Ioannis Broustis, Violeta Cakulev, Semyon Mizikovsky, Ganesh Sundaram
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Patent number: 7672323Abstract: In a network system for transporting GFP-encapsulated Fibre Channel/FICON data across a SONET/SDH transport network between two Fibre Channel/FICON ports, a transport interface for one Fibre Channel/FICON port intelligently allocates the amount of buffers for receiving Fibre Channel/FICON data from the other Fibre Channel/FICON port by determining the latency of travel across the SONET/SDH transport network. The first transport interface inserts a special latency instruction message into the Fibre Channel/FICON data before encapsulation in a GFP frame. After transport across the SONET/SDH network, the receiving second transport interface immediately sends the special latency instruction message back across the SONET/SDH transport network to the first transport interface which times the return of the special latency instruction message. From the time interval, the first transport interface can determine the latency of the SONET/SDH transport network and allocates the amount of buffers appropriately.Type: GrantFiled: January 14, 2005Date of Patent: March 2, 2010Assignee: Cisco Technology, Inc.Inventors: Ganesh Sundaram, John Diab, Hitesh Amin, Thomas Eric Ryle
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Patent number: 7653066Abstract: In network systems for transporting GFP-encapsulated FICON frames across a SONET/SDH transport network between FICON ports, the transport interfaces for the FICON ports operate to drop duplicate and out-of-order frames transported across the SONET/SDH network. The transmitting transport interface inserts a sequence number incremented with each FICON frame into said one or more transport frames, whereby the sequence number is used as an index for determining duplicate and out-of-order frames after transport over said SONET/SDH network. The receiving transport interface compares sequence numbers with each FICON frame to determine duplicate and out-of-order FICON frames, drops the duplicate and out-of-order FICON frames; and sends the balance of the compared FICON frames to the receiving FICON port.Type: GrantFiled: November 4, 2004Date of Patent: January 26, 2010Assignee: Cisco Technology Inc.Inventors: Ganesh Sundaram, Hitesh Amin, John Diab, Thomas Eric Ryle, Charles Allen Carriker, Jr., Marc Bennett, Michael D. Blair
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Publication number: 20090265531Abstract: Systems and methods of code evaluation for in-order processing are disclosed. In an embodiment, the method includes identifying a first instruction having multiple execution source paths. The method also includes generating a first execution path model identifying an execution order of multiple instructions based on a first condition and generating a second execution path model identifying an execution order of a second instruction based on a second condition. The method includes evaluating at least one of the execution path models to identify a hazard condition.Type: ApplicationFiled: April 17, 2008Publication date: October 22, 2009Applicant: QUALCOMM INCORPORATEDInventors: Ming Hu, Ramakrishnan Ganesh Sundaram, Rajiv B. Narayan, Satya Jayaraman
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Patent number: 7568026Abstract: A method and system for flow control of GFP-encapsulated Fiber Channel frames over SONET/SDH transport networks is described. Transport interfaces, in the form of port cards, monitor any switch-over or error in the SONET/SDH transport network responsive to GFP out of synchronization signals; and transmit Fiber Channel Ordered Sets indicative of non-operation to it associated Fiber Channel port so that the Fiber Channel port performs link initialization and buffer credit recovery procedures with its counterpart Fiber Channel port across the SONET/SDH transport network. This speeds the recovery of the link between the two Fiber Channel ports.Type: GrantFiled: February 13, 2004Date of Patent: July 28, 2009Assignee: Cisco Technology, Inc.Inventors: Ganesh Sundaram, Thomas Eric Ryle, Hitesh Amin, John Diab, Yves Charles Vidal
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Patent number: 7565442Abstract: A method and system for communicating state information between a local device and a remote device across a transport network is disclosed. Each of the local and remote devices operate independently from one another and at least one of the devices is configured for one-way traffic protection. The method includes receiving a protection message comprising K-bytes from one of the local and remote devices at the other of the local and remote devices and determining based on the received K-bytes, if there is a change in state at one of the devices. If a change in state is detected, a message is sent indicating the change in state from one of the local and remote devices to the other of the local and remote devices.Type: GrantFiled: June 8, 2005Date of Patent: July 21, 2009Assignee: Cisco Technology, Inc.Inventors: Gongyuan Yao, William Miller, Lee Shombert, Fang Gao, John Diab, Ravi Singhal, Stephane Muszynski, Ganesh Sundaram, Thomas Eric Ryle, Hitesh Amin
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Patent number: 7515593Abstract: A method and system for flow control of GFP-encapsulated client data frames over SONET/SDH transport networks is described. Transport interfaces, in the form of port cards, have FIFO buffers for receiving the GFP frames. In acknowledgment of the received frames, a transmitting transport interface receives an acknowledgement in form of a returned frame sequence number tag along with the available capacity in bytes of the buffer of the receiving transport interface. With a continuous update of buffer capacity and tracking the number of bytes in transit to the receiving transport interface, the transmitting transport interface maximizes the utilization of the channel through the SONET/SDH transport network, even with dropped frames or dropped acknowledgment tags.Type: GrantFiled: July 3, 2003Date of Patent: April 7, 2009Assignee: Cisco Technology, Inc.Inventors: Vikram Devdas, Hitesh Amin, John Diab, Marc Bennett, Ganesh Sundaram, Thomas Eric Ryle
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Publication number: 20060159112Abstract: In a network system for transporting GFP-encapsulated Fibre Channel/FICON data across a SONET/SDH transport network between two Fibre Channel/FICON ports, a transport interface for one Fibre Channel/FICON port intelligently allocates the amount of buffers for receiving Fibre Channel/FICON data from the other Fibre Channel/FICON port by determining the latency of travel across the SONET/SDH transport network. The first transport interface inserts a special latency instruction message into the Fibre Channel/FICON data before encapsulation in a GFP frame. After transport across the SONET/SDH network, the receiving second transport interface immediately sends the special latency instruction message back across the SONET/SDH transport network to the first transport interface which times the return of the special latency instruction message. From the time interval, the first transport interface can determine the latency of the SONET/SDH transport network and allocates the amount of buffers appropriately.Type: ApplicationFiled: January 14, 2005Publication date: July 20, 2006Applicant: Cisco Technology, Inc.Inventors: Ganesh Sundaram, John Diab, Hitesh Amin, Thomas Ryle
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Publication number: 20060092943Abstract: In network systems for transporting GFP-encapsulated FICON frames across a SONET/SDH transport network between FICON ports, the transport interfaces for the FICON ports operate to drop duplicate and out-of-order frames transported across the SONET/SDH network. The transmitting transport interface inserts a sequence number incremented with each FICON frame into said one or more transport frames, whereby the sequence number is used as an index for determining duplicate and out-of-order frames after transport over said SONET/SDH network. The receiving transport interface compares sequence numbers with each FICON frame to determine duplicate and out-of-order FICON frames, drops the duplicate and out-of-order FICON frames; and sends the balance of the compared FICON frames to the receiving FICON port.Type: ApplicationFiled: November 4, 2004Publication date: May 4, 2006Applicant: Cisco Technology, Inc.Inventors: Ganesh Sundaram, Hitesh Amin, John Diab, Thomas Ryle, Charles Carriker, Marc Bennett