Patents by Inventor Pradeep S. Sindhu

Pradeep S. Sindhu 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).

  • Patent number: 9992133
    Abstract: A switching device in a network system for transferring data includes one or more source line cards, one or more destination line cards and a switching fabric coupled to the source line cards and the destination line cards to enable data communication between any source line card and destination line card. Each source line card includes a request generator to generate a request signal to be transmitted in order to obtain an authorization to transmit data. Each destination line card includes a grant generator to generate and send back a grant signal to the source line card in response to the request signal received at the destination line card to authorize the source line card to transmit a data cell to the destination line card.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: June 5, 2018
    Assignee: Juniper Networks, Inc.
    Inventors: Pradeep S. Sindhu, Philippe Lacroute, Matthew A. Tucker, John D. Weisbloom, David B. Winters
  • Patent number: 9912590
    Abstract: A method and apparatus for in-line processing a data packet while routing the packet through a router in a system transmitting data packets between a source and a destination over a network including the router. The method includes receiving the data packet and pre-processing layer header data for the data packet as the data packet is received and prior to transferring any portion of the data packet to packet memory. The data packet is thereafter stored in the packet memory. A routing through the router is determined including a next hop index describing the next connection in the network. The data packet is retrieved from the packet memory and a new layer header for the data packet is constructed from the next hop index while the data packet is being retrieved from memory. The new layer header is coupled to the data packet prior to transfer from the router.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: March 6, 2018
    Assignee: Juniper Networks, Inc.
    Inventors: Rasoul Mirzazadeh Oskouy, Dennis C. Ferguson, Hann-Hwan Ju, Raymond Marcelino Manese Lim, Pradeep S. Sindhu, Sreeram Veeragandham, Jeff Zimmer, Michael M. Y. Hui
  • Publication number: 20170237661
    Abstract: A method and apparatus for performing a lookup in a switching device of a packet switched network where the lookup includes a plurality of distinct operations each of which returns a result that includes a pointer to a next operation in a sequence of operations for the lookup. The method includes determining a first lookup operation to be executed, executing the first lookup operation including returning a result and determining if the result includes a pointer to another lookup operation in the sequence of operations. If the result includes a pointer to another lookup operation, the lookup operation indicated by the result is executed. Else, the lookup is terminated.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Inventors: Dennis C. FERGUSON, Rajiv PATEL, Gerald CHEUNG, Pradeep S. SINDHU
  • Patent number: 9647940
    Abstract: A method and apparatus for performing a lookup in a switching device of a packet switched network where the lookup includes a plurality of distinct operations each of which returns a result that includes a pointer to a next operation in a sequence of operations for the lookup. The method includes determining a first lookup operation to be executed, executing the first lookup operation including returning a result and determining if the result includes a pointer to another lookup operation in the sequence of operations. If the result includes a pointer to another lookup operation, the lookup operation indicated by the result is executed. Else, the lookup is terminated.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 9, 2017
    Assignee: Juniper Networks, Inc.
    Inventors: Dennis C. Ferguson, Rajiv Patel, Gerald Cheung, Pradeep S. Sindhu
  • Publication number: 20170104691
    Abstract: A switching device in a network system for transferring data includes one or more source line cards, one or more destination line cards and a switching fabric coupled to the source line cards and the destination line cards to enable data communication between any source line card and destination line card. Each source line card includes a request generator to generate a request signal to be transmitted in order to obtain an authorization to transmit data. Each destination line card includes a grant generator to generate and send back a grant signal to the source line card in response to the request signal received at the destination line card to authorize the source line card to transmit a data cell to the destination line card.
    Type: Application
    Filed: October 21, 2016
    Publication date: April 13, 2017
    Inventors: Pradeep S. SINDHU, Philippe LACROUTE, Matthew A. TUCKER, John D. WEISBLOOM, David B. WINTERS
  • Publication number: 20170041228
    Abstract: A method and apparatus for in-line processing a data packet while routing the packet through a router in a system transmitting data packets between a source and a destination over a network including the router. The method includes receiving the data packet and pre-processing layer header data for the data packet as the data packet is received and prior to transferring any portion of the data packet to packet memory. The data packet is thereafter stored in the packet memory. A routing through the router is determined including a next hop index describing the next connection in the network. The data packet is retrieved from the packet memory and a new layer header for the data packet is constructed from the next hop index while the data packet is being retrieved from memory. The new layer header is coupled to the data packet prior to transfer from the router.
    Type: Application
    Filed: October 24, 2016
    Publication date: February 9, 2017
    Inventors: Rasoul Mirzazadeh OSKOUY, Dennis C. FERGUSON, Hann-Hwan JU, Raymond Marcelino Manese LIM, Pradeep S. SINDHU, Sreeram VEERAGANDHAM, Jeff ZIMMER, Michael M.Y. HUI
  • Patent number: 9479436
    Abstract: A method and apparatus for in-line processing a data packet while routing the packet through a router in a system transmitting data packets between a source and a destination over a network including the router. The method includes receiving the data packet and pre-processing layer header data for the data packet as the data packet is received and prior to transferring any portion of the data packet to packet memory. The data packet is thereafter stored in the packet memory. A routing through the router is determined including a next hop index describing the next connection in the network. The data packet is retrieved from the packet memory and a new layer header for the data packet is constructed from the next hop index while the data packet is being retrieved from memory. The new layer header is coupled to the data packet prior to transfer from the router.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 25, 2016
    Assignee: Juniper Networks Inc.
    Inventors: Rasoul Mirzazadeh Oskouy, Dennis C. Ferguson, Hann-Hwan Ju, Raymond Marcelino Manese Lim, Pradeep S. Sindhu, Sreeram Veeragandham, Jeff Zimmer, Michael M. Y. Hui
  • Patent number: 9479462
    Abstract: A switching device in a network system for transferring data includes one or more source line cards, one or more destination line cards and a switching fabric coupled to the source line cards and the destination line cards to enable data communication between any source line card and destination line card. Each source line card includes a request generator to generate a request signal to be transmitted in order to obtain an authorization to transmit data. Each destination line card includes a grant generator to generate and send back a grant signal to the source line card in response to the request signal received at the destination line card to authorize the source line card to transmit a data cell to the destination line card.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: October 25, 2016
    Assignee: Juniper Networks, Inc.
    Inventors: Pradeep S. Sindhu, Philippe Lacroute, Matthew A. Tucker, John D. Weisbloom, David B. Winters
  • Patent number: 9411776
    Abstract: A method and apparatus for switching a data packet between a source and destination in a network. The data packet includes a header portion and a data portion. The header portion includes routing information for the data packet. The method includes defining a data path in the router comprising a path through the router along which the data portion of the data packet travels and defining a control path comprising a path through the router along which routing information from the header portion travels. The method includes separating the data path and control path in the router such that the routing information can be separated from the data portion allowing for the separate processing of each in the router. The data portion can be stored in a global memory while routing decisions are made on the routing information in the control path.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: August 9, 2016
    Assignee: Juniper Networks, Inc.
    Inventors: Pradeep S. Sindhu, Kireeti Kompella, Dennis C. Ferguson, Bjorn O. Liencres, Nalini Agarwal, Hann-Hwan Ju, Raymond Marcelino Manese Lim, Rasoul Mirzazadeh Oskouy, Sreeram Veeragandham
  • Patent number: 9361225
    Abstract: A system for writing data includes a memory, at least one memory controller and control logic. The memory stores data units. The memory controller receives a write request associated with a data unit and stores the data unit in the memory. The memory controller also transmits a reply that includes an address where the data unit is stored. The control logic receives the reply and determines whether the address in the reply differs from an address included in replies associated with other memory controllers by a threshold amount. When this occurs, the control logic performs a corrective action to bring an address associated with the memory controller back within a defined range.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: June 7, 2016
    Assignee: Juniper Networks, Inc.
    Inventors: Rami Rahim, Pradeep S. Sindhu, Raymond Marcelino Manese Lim, Sreeram Veeragandham, David Skinner
  • Patent number: 9258076
    Abstract: A laser system includes an array of lasers that emit light at a number of different, fixed wavelengths. A group of optical transport systems connect to the laser system. Each of the optical transport systems is configured to modulate data signals onto the light from the laser system to create optical signals and transmit the optical signals on one or more optical fibers.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: February 9, 2016
    Assignee: Juniper Networks, Inc.
    Inventor: Pradeep S. Sindhu
  • Publication number: 20150288479
    Abstract: A laser system includes an array of lasers that emit light at a number of different, fixed wavelengths. A group of optical transport systems connect to the laser system. Each of the optical transport systems is configured to modulate data signals onto the light from the laser system to create optical signals and transmit the optical signals on one or more optical fibers.
    Type: Application
    Filed: June 22, 2015
    Publication date: October 8, 2015
    Inventor: Pradeep S. SINDHU
  • Patent number: 9098262
    Abstract: A processor may include a conditional arithmetic logic unit and a main arithmetic logic unit. The conditional arithmetic logic unit may perform a first arithmetic logic operation to generate a first result, and output the result. The main arithmetic logic unit may select input buses among a plurality of data buses that carry the first result from the conditional arithmetic logic unit, perform a second arithmetic logic operation on data provided by the selected input buses to generate a second result, and write the second result in a storage component.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: August 4, 2015
    Assignee: Juniper Networks, Inc.
    Inventors: Jean-Marc Frailong, Pradeep S. Sindhu, Jeffrey G. Libby, Jian Hui Huang, Rajesh Nair, John Keen
  • Patent number: 9066166
    Abstract: A laser system includes an array of lasers that emit light at a number of different, fixed wavelengths. A group of optical transport systems connect to the laser system. Each of the optical transport systems is configured to modulate data signals onto the light from the laser system to create optical signals and transmit the optical signals on one or more optical fibers.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: June 23, 2015
    Assignee: Juniper Networks, Inc.
    Inventor: Pradeep S. Sindhu
  • Publication number: 20150058599
    Abstract: A processor may include a conditional arithmetic logic unit and a main arithmetic logic unit. The conditional arithmetic logic unit may perform a first arithmetic logic operation to generate a first result, and output the result. The main arithmetic logic unit may select input buses among a plurality of data buses that carry the first result from the conditional arithmetic logic unit, perform a second arithmetic logic operation on data provided by the selected input buses to generate a second result, and write the second result in a storage component.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 26, 2015
    Inventors: Jean-Marc FRAILONG, Pradeep S. SINDHU, Jeffrey G. LIBBY, Jian Hui HUANG, Rajesh NAIR, John KEEN
  • Publication number: 20150052316
    Abstract: A system for writing data includes a memory, at least one memory controller and control logic. The memory stores data units. The memory controller receives a write request associated with a data unit and stores the data unit in the memory. The memory controller also transmits a reply that includes an address where the data unit is stored. The control logic receives the reply and determines whether the address in the reply differs from an address included in replies associated with other memory controllers by a threshold amount. When this occurs, the control logic performs a corrective action to bring an address associated with the memory controller back within a defined range.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 19, 2015
    Inventors: Rami RAHIM, Pradeep S. Sindhu, Raymond Marcelino Manese Lim, Sreeram Veeragandham, David Skinner
  • Publication number: 20150019938
    Abstract: A method and apparatus for in-line processing a data packet while routing the packet through a router in a system transmitting data packets between a source and a destination over a network including the router. The method includes receiving the data packet and pre-processing layer header data for the data packet as the data packet is received and prior to transferring any portion of the data packet to packet memory. The data packet is thereafter stored in the packet memory. A routing through the router is determined including a next hop index describing the next connection in the network. The data packet is retrieved from the packet memory and a new layer header for the data packet is constructed from the next hop index while the data packet is being retrieved from memory. The new layer header is coupled to the data packet prior to transfer from the router.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Rasoul Mirzazadeh OSKOUY, Dennis C. FERGUSON, Hann-Hwan Ju, Raymond Marcelino Manese LIM, Pradeep S. SINDHU, Sreeram VEERAGANDHAM, Jeff ZIMMER, Michael M.Y. HUI
  • Publication number: 20140347995
    Abstract: A method and apparatus for performing a lookup in a switching device of a packet switched network where the lookup includes a plurality of distinct operations each of which returns a result that includes a pointer to a next operation in a sequence of operations for the lookup. The method includes determining a first lookup operation to be executed, executing the first lookup operation including returning a result and determining if the result includes a pointer to another lookup operation in the sequence of operations. If the result includes a pointer to another lookup operation, the lookup operation indicated by the result is executed. Else, the lookup is terminated.
    Type: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Inventors: Dennis C. FERGUSON, Rajiv PATEL, Gerald CHEUNG, Pradeep S. SINDHU
  • Publication number: 20140348178
    Abstract: A switching device in a network system for transferring data includes one or more source line cards, one or more destination line cards and a switching fabric coupled to the source line cards and the destination line cards to enable data communication between any source line card and destination line card. Each source line card includes a request generator to generate a request signal to be transmitted in order to obtain an authorization to transmit data. Each destination line card includes a grant generator to generate and send back a grant signal to the source line card in response to the request signal received at the destination line card to authorize the source line card to transmit a data cell to the destination line card.
    Type: Application
    Filed: August 7, 2014
    Publication date: November 27, 2014
    Inventors: Pradeep S. SINDHU, Philippe LACROUTE, Matthew A. TUCKER, John D. WEISBLOOM, David B. WINTERS
  • Publication number: 20140341570
    Abstract: A laser system includes an array of lasers that emit light at a number of different, fixed wavelengths. A group of optical transport systems connect to the laser system. Each of the optical transport systems is configured to modulate data signals onto the light from the laser system to create optical signals and transmit the optical signals on one or more optical fibers.
    Type: Application
    Filed: July 31, 2014
    Publication date: November 20, 2014
    Inventor: Pradeep S. SINDHU