Patents by Inventor Rama Chandran

Rama Chandran 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: 11729773
    Abstract: An O-RAN packet to be transmitted includes a header having a packet sequence number that is independent of an uplink/downlink direction in which the packet is to be transmitted. The header, which may be an eCPRI or RoE header, is generated without regard for a data direction bit. The packet sequence number is generated within a sequence count generator of the controller that operates separately from generation of a remainder of the packet and that ignores the data direction bit.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: August 15, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sanil Rama Chandran
  • Publication number: 20230208559
    Abstract: Methods and apparatuses for handling an acknowledgement of C-plane message in a wireless communication system. A method of a transmitter device comprises: generating a section extension for an ACK/NACK request including an ackNackReqId field and an extLen field, wherein the ackNackReqId field indicates the ACK/NACK request ID of a section description and the extLen field indicates a size of the section extension; transmitting, to a receiver device, the C-plane message including the section extension for the ACK/NACK request; and receiving, from the receiver device, an ACK message corresponding to the C-plane message.
    Type: Application
    Filed: November 14, 2022
    Publication date: June 29, 2023
    Inventor: Sanil Rama Chandran
  • Publication number: 20220210808
    Abstract: An O-RAN packet to be transmitted includes a header having a packet sequence number that is independent of an uplink/downlink direction in which the packet is to be transmitted. The header, which may be an eCPRI or RoE header, is generated without regard for a data direction bit. The packet sequence number is generated within a sequence count generator of the controller that operates separately from generation of a remainder of the packet and that ignores the data direction bit.
    Type: Application
    Filed: January 28, 2021
    Publication date: June 30, 2022
    Inventor: Sanil Rama Chandran
  • Patent number: 11316720
    Abstract: A control plane section type message indicates a section extension message that includes a field numZeroPadBin indicating a number of zero padded bins to be added after a symbol indicated by a section header of the control plane section type message for FFT/iFFT. The control plane section type message may be one of a Section Type 1 message, a Section Type 3 message, or a Section Type 5 message, and may be associated with a MBSFN subframe. The value of the numZeroPadBin field is determined based on SCS, FFT size and CP combination of NCP/ECP in a subframe or and a slot.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: April 26, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sanil Rama Chandran
  • Publication number: 20210218608
    Abstract: A control plane section type message indicates a section extension message that includes a field numZeroPadBin indicating a number of zero padded bins to be added after a symbol indicated by a section header of the control plane section type message for FFT/iFFT. The control plane section type message may be one of a Section Type 1 message, a Section Type 3 message, or a Section Type 5 message, and may be associated with a MBSFN subframe. The value of the numZeroPadBin field is determined based on SCS, FFT size and CP combination of NCP/ECP in a subframe or and a slot.
    Type: Application
    Filed: January 7, 2021
    Publication date: July 15, 2021
    Inventor: Sanil Rama Chandran
  • Patent number: 10791527
    Abstract: A transmitter device in a wireless communication system is provided. The transmitter device comprises a processor configured to: generate an extType field indicating a section extension; generate a mcScaleReMask field indicating a set of resource elements; generate a mcScaleOffset field indicating a power offset value; generate an extLen field indicating a number of a pair of the mcScaleReMask and the mcScaleOffset fields included in the section extension; and generate a downlink and uplink (DL/UL) control message including the extType field, the mcScaleReMask field, and the mcScaleOffset field, and the extLen field. The transmitter device further comprises a transceiver operably connected to the processor, the transceiver configured to transmit, to a receiver, the DL/UL control message.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: September 29, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sanil Rama Chandran
  • Publication number: 20200128496
    Abstract: A transmitter device in a wireless communication system is provided. The transmitter device comprises a processor configured to: generate an extType field indicating a section extension; generate a mcScaleReMask field indicating a set of resource elements; generate a mcScaleOffset field indicating a power offset value; generate an extLen field indicating a number of a pair of the mcScaleReMask and the mcScaleOffset fields included in the section extension; and generate a downlink and uplink (DL/UL) control message including the extType field, the mcScaleReMask field, and the mcScaleOffset field, and the extLen field. The transmitter device further comprises a transceiver operably connected to the processor, the transceiver configured to transmit, to a receiver, the DL/UL control message.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 23, 2020
    Inventor: Sanil Rama Chandran
  • Patent number: 9056060
    Abstract: An adhesive composition which lacks functional groups containing reactive hydrogen moieties and contains no post-polymerization chemical crosslinker finds use in transdermal drug delivery systems. The invention enables the administration of drugs containing a reactive functional group, which drugs have heretofore not been able to be administered by the transdermal route using conventional acrylic adhesives.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: June 16, 2015
    Assignee: Henkel AG & Co. KGaA
    Inventors: Eric Silverberg, Rama Chandran, Paul Foreman, Michael Philbin, Smita Shah
  • Patent number: 8331561
    Abstract: A sink may be to used to process multimedia digital data. The sink may include a plurality of input ports, an output port, a switchably-enabled selector to select an input port from a plurality of HDMI input ports to couple to an output port, a control circuit to detect encrypted data in a channel of the input ports; and a plurality of decryption engines. Each of the decryption engines may be coupled to respective input ports to synchronize with a corresponding encryption engine of a data source after the control circuit detects encrypted data in the channel of the respective input port. Additional circuitry may be included to operate the sink in a power saving mode. Also, methods for processing the data in both power saving and non-power saving modes.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: December 11, 2012
    Assignee: Analog Devices, Inc.
    Inventors: Pablo Ventura Domingo, Lucas Valentin Garcia, Michael Joseph Fernald, Rajesh Rama Chandran, Joseph Michael Barry
  • Patent number: 8242940
    Abstract: A sink may be to used to process multimedia digital data. The sink may include a plurality of input ports, an output port, a switchably-enabled selector to select an input port from a plurality of HDMI input ports to couple to an output port, a control circuit to detect encrypted data in a channel of the input ports; and a plurality of decryption engines. Each of the decryption engines may be coupled to respective input ports to synchronize with a corresponding encryption engine of a data source after the control circuit detects encrypted data in the channel of the respective input port. Additional circuitry may be included to operate the sink in a power saving mode. Also, methods for processing the data in both power saving and non-power saving modes.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: August 14, 2012
    Assignee: Analog Devices, Inc.
    Inventors: Pablo Ventura Domingo, Lucas Valentin Garcia, Michael Joseph Fernald, Rajesh Rama Chandran, Joseph Michael Barry
  • Publication number: 20110150215
    Abstract: A sink may be to used to process multimedia digital data. The sink may include a plurality of input ports, an output port, a switchably-enabled selector to select an input port from a plurality of HDMI input ports to couple to an output port, a control circuit to detect encrypted data in a channel of the input ports; and a plurality of decryption engines. Each of the decryption engines may be coupled to respective input ports to synchronize with a corresponding encryption engine of a data source after the control circuit detects encrypted data in the channel of the respective input port. Additional circuitry may be included to operate the sink in a power saving mode. Also, methods for processing the data in both power saving and non-power saving modes.
    Type: Application
    Filed: December 13, 2010
    Publication date: June 23, 2011
    Applicant: ANALOG DEVICES, INC.
    Inventors: Pablo Ventura DOMINGO, Lucas Valentin GARCIA, Michael Joseph FERNALD, Rajesh Rama CHANDRAN, Joseph Michael BARRY
  • Publication number: 20110148672
    Abstract: A sink may be to used to process multimedia digital data. The sink may include a plurality of input ports, an output port, a switchably-enabled selector to select an input port from a plurality of HDMI input ports to couple to an output port, a control circuit to detect encrypted data in a channel of the input ports; and a plurality of decryption engines. Each of the decryption engines may be coupled to respective input ports to synchronize with a corresponding encryption engine of a data source after the control circuit detects encrypted data in the channel of the respective input port. Additional circuitry may be included to operate the sink in a power saving mode. Also, methods for processing the data in both power saving and non-power saving modes.
    Type: Application
    Filed: December 13, 2010
    Publication date: June 23, 2011
    Applicant: Analog Devices, Inc.
    Inventors: Pablo Ventura DOMINGO, Lucas Valentin GARCIA, Michael Joseph FERNALD, Rajesh Rama CHANDRAN, Joseph Michael BARRY
  • Patent number: 6670417
    Abstract: Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: December 30, 2003
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Paul B. Foreman, Smita M. Shah, Rama Chandran, Patrick S. Eaton
  • Patent number: 6642298
    Abstract: Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 4, 2003
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Paul B. Foreman, Smita M. Shah, Rama Chandran, Patrick S. Eaton
  • Publication number: 20030166767
    Abstract: Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.
    Type: Application
    Filed: February 13, 2003
    Publication date: September 4, 2003
    Inventors: Paul B. Foreman, Smita M. Shah, Rama Chandran, Patrick S. Eaton
  • Publication number: 20030022980
    Abstract: Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.
    Type: Application
    Filed: March 16, 2001
    Publication date: January 30, 2003
    Inventors: Paul B. Foreman, Smita M. Shah, Rama Chandran, Patrick S. Eaton
  • Publication number: 20020077437
    Abstract: An adhesive composition which lacks functional groups containing reactive hydrogen moieties and contains no post-polymerization chemical crosslinker finds use in transdermal drug delivery systems. The invention enables the administration of drugs containing a reactive functional group, which drugs have heretofore not been able to be administered by the transdermal route using conventional acrylic adhesives.
    Type: Application
    Filed: September 18, 2001
    Publication date: June 20, 2002
    Inventors: Eric Silverberg, Rama Chandran, Paul Foreman, Michael Philbin, Smita Shah
  • Patent number: 5916968
    Abstract: A graft copolymer for use as an adhesive for drug delivery patches or dressings that is resistant to dissolution in the presence of skin penetration enhancers comprises copolymerized acrylic and, optionally, vinyl monomers, to form a backbone polymer, to which are grafted polymeric moieties that do not absorb greater than 3% by weight of a skin-penetration enhancer under thermodynamic equilibrium at 25.degree. C. if independently introduced into an excess of the enhancer. Preferably, the grafted polymers are selected from the classes of polybutylene, polysaccharide, poly(ethyleneoxide/propyleneoxide), and polyamide polymers, and specific grafted polymers will depend on the specific enhancers used in a particular drug delivery system.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: June 29, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Deepak Hariharan, Roman Bradel, Rama Chandran, Pravin Kukkala
  • Patent number: 5536759
    Abstract: This invention is a hot melt pressure sensitive adhesive formed by copolymerizing acrylic, or a combination of acrylic and vinyl, monomers, at least one of which is a photoinitiator, with the functional monomer, 1-(1-isocyanato-1-methyl ethyl)-3-(1-methyl ethenyl)benzene (m-TMI), to give a saturated polymer with pendant vinyl groups that are crosslinked by UV radiation.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: July 16, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Roopram Ramharack, Rama Chandran
  • Patent number: 5416127
    Abstract: This invention is a hot melt pressure sensitive adhesive formed by copolymerizing acrylic, or a combination of acrylic and vinyl, monomers with the functional monomer, 1-(1-isocyanato-1-methyl ethyl)-3-(1-methyl ethenyl)benzene m-TMI, to give a saturated polymer with pendant vinyl groups that are crosslinked by UV or EB radiation.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: May 16, 1995
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Rama Chandran, Roopram Ramharack, Irwin J. Davis, John C. Leighton