Patents by Inventor Ravichandran Ramachandran

Ravichandran Ramachandran 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: 8739000
    Abstract: A system for signal processing includes: a plurality of signal processing units associated with corresponding channels; a feedback channel for receiving a selected feedback signal through a selector of an output associated with each of the signal processing units; and a correlator connected to the feedback channel and having a receiving unit to receive the selected feedback signal, an error calculating unit to calculate an error based at least in part on the selected feedback signal, and a correction calculation unit to generate a correcting information based at least in part on the error. In some cases, the association between the signal processing units and the signal channels is configured based on a mode.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 27, 2014
    Assignee: Broadcom Corporation
    Inventors: Timothy Ryan, Ravichandran Ramachandran
  • Patent number: 8600317
    Abstract: A system for linearization signal processing with context switching comprises a plurality of signal processing units, a storage unit, a feedback channel, and a correlator. The plurality of signal processing units is associated with corresponding input data signals. The storage unit is to store context states associated with input data signals and corresponding feedback signals. The feedback channel is to convey feedback signals from outputs associated with the plurality of signal processing units. The correlator is coupled to the feedback channel and generates respective correcting information to be used by respective signal processing units, wherein a respective correcting information is based upon a context state and a feedback state associated with an input data signal.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: December 3, 2013
    Assignee: Broadcom Corporation
    Inventors: Timothy Ryan, Ravichandran Ramachandran
  • Publication number: 20130246875
    Abstract: A system for signal processing includes: a plurality of signal processing units associated with corresponding channels; a feedback channel for receiving a selected feedback signal through a selector of an output associated with each of the signal processing units; and a correlator connected to the feedback channel and having a receiving unit to receive the selected feedback signal, an error calculating unit to calculate an error based at least in part on the selected feedback signal, and a correction calculation unit to generate a correcting information based at least in part on the error. In some cases, the association between the signal processing units and the signal channels is configured based on a mode.
    Type: Application
    Filed: March 15, 2012
    Publication date: September 19, 2013
    Applicant: Broadcom Corporation
    Inventors: Timothy RYAN, Ravichandran Ramachandran
  • Publication number: 20130244728
    Abstract: A system for linearization signal processing with context switching comprises a plurality of signal processing units, a storage unit, a feedback channel, and a correlator. The plurality of signal processing units is associated with corresponding input data signals. The storage unit is to store context states associated with input data signals and corresponding feedback signals. The feedback channel is to convey feedback signals from outputs associated with the plurality of signal processing units. The correlator is coupled to the feedback channel and generates respective correcting information to be used by respective signal processing units, wherein a respective correcting information is based upon a context state and a feedback state associated with an input data signal.
    Type: Application
    Filed: March 15, 2012
    Publication date: September 19, 2013
    Applicant: Broadcom Corporation
    Inventors: Timothy RYAN, Ravichandran RAMACHANDRAN
  • Patent number: 6345378
    Abstract: A practical approach for synthesis for million gate ASICs is based on the use of synthesis shells. The synthesis shell is generated by beginning with a gate level description of a fully characterized and optimized block. This gate level description is reduced by removing internal gates to produce a synthesis shell of the synthesized block. The synthesis shell preserves input load and fanout for the block, output delay relative to clock for the block, setup/hold constraints on input signals relative to the clock for the block, and delay from input to output for pass through signals for the block. Such a synthesis shell can be used as a substitute for original design netlists and can be used for hierarchical synthesis in a customer's design environment, or as a deliverable from a provider of ASIC services in order to protect the intellectual property of such a provider.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: February 5, 2002
    Assignee: LSI Logic Corporation
    Inventors: Christian Joly, Zarir Sarkari, Ravichandran Ramachandran, Sarika Agrawal, Sanjay Adkar