Patents by Inventor Namrta Sharma

Namrta Sharma 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: 10033552
    Abstract: Embodiments of the invention are generally directed driving data of multiple protocols through a single set of pins. An embodiment of an apparatus includes a transmitter connected to two pads on an IC the transmitter including a differential driver to transmit a differential signal, wherein the differential driver has a first branch and a second branch, each branch of the differential driver including a protection device connected to one of the pads; and a common mode driver to transmit a common mode signal, the common mode driver having a first branch and a second branch, each of the branches of the common mode driver including a protection device connected to one of the pads. The first and second switch devices are not turned on simultaneously, based on data to be transmitted, one of the switch devices being turned on and the other being turned off.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: July 24, 2018
    Assignee: Lattice Semiconductor Corporation
    Inventors: Vinayak Agrawal, Namrta Sharma, Nagaraj Chekka, Srikanth Gondi
  • Publication number: 20170005836
    Abstract: Embodiments of the invention are generally directed driving data of multiple protocols through a single set of pins. An embodiment of an apparatus includes a transmitter connected to two pads on an IC the transmitter including a differential driver to transmit a differential signal, wherein the differential driver has a first branch and a second branch, each branch of the differential driver including a protection device connected to one of the pads; and a common mode driver to transmit a common mode signal, the common mode driver having a first branch and a second branch, each of the branches of the common mode driver including a protection device connected to one of the pads. The first and second switch devices are not turned on simultaneously, based on data to be transmitted, one of the switch devices being turned on and the other being turned off.
    Type: Application
    Filed: July 29, 2016
    Publication date: January 5, 2017
    Inventors: Vinayak Agrawal, Namrta Sharma, Nagaraj Chekka, Srikanth Gondi
  • Patent number: 9407469
    Abstract: Embodiments of the invention are generally directed driving data of multiple protocols through a single set of pins. An embodiment of an apparatus includes a transmitter connected to two pads on an IC the transmitter including a differential driver to transmit a differential signal, wherein the differential driver has a first branch and a second branch, each branch of the differential driver including a protection device connected to one of the pads; and a common mode driver to transmit a common mode signal, the common mode driver having a first branch and a second branch, each of the branches of the common mode driver including a protection device connected to one of the pads. The first and second switch devices are not turned on simultaneously, based on data to be transmitted, one of the switch devices being turned on and the other being turned off.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 2, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Vinayak Agrawal, Namrta Sharma, Nagaraj Chekka, Srikanth Gondi
  • Patent number: 9407470
    Abstract: Embodiments of the invention are generally directed to elements to counter transmitter circuit performance limitations. An embodiment of an apparatus for driving data on a differential channel including a first output terminal and a second output terminal includes a differential driver circuit; and a first pre-driver and a second pre-driver, where each pre-driver has an output, wherein the first output terminal of the apparatus is coupled to the output of the first pre-driver, and the second output terminal of the apparatus is coupled to the output of the second pre-driver, where each pre-driver includes one or more capacitors, a first end of each capacitor being connected to the output of the pre-driver and a second end of each of the capacitors being connected to a sub-pre-driver circuit.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: August 2, 2016
    Assignee: LATTICE SEMICONDUCTOR CORPORATION
    Inventors: Vinayak Agrawal, Namrta Sharma, Deepak Ramapuram
  • Patent number: 9401706
    Abstract: Techniques and mechanisms for switching between a plurality of inputs each to receive a respective analog signal to be transmitted. In an embodiment, switch circuitry comprises a first input to receive a first signal, a second input to receive a second signal, and one or more T-coil circuits including a first T-coil circuit. A first configuration of the switch circuitry includes a first signal path via a first switch coupled between the first input and a primary input node of the first T-coil circuit. A second configuration of the switch circuitry includes a second signal path via a second switch coupled between the second input and a secondary input node of the first T-coil circuit. In an embodiment, control logic transitions the switch circuitry among a plurality of configurations including the first configuration and the second configuration.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: July 26, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Prashanth Tirunagari, Vinayak Agrawal, Namrta Sharma, Manjusha Manchikalapudi, Rahul Velitheri
  • Patent number: 9240878
    Abstract: Techniques and methods for performing asymmetric, full-duplex communication via a signal line. In an embodiment, a transceiver includes transmit circuitry to transmit a first signal via a node coupled to a signal line, where the first signal is transmitted concurrently with the transceiver receiving a second signal via the node at a substantially different data rate than that of the first signal. In another embodiment, signal processing circuitry of the transceiver detects a composite signal at the node, the composite signal including a combination of the first signal and the second signal. Based on the combination of the first signal and the second signal, the signal processing circuitry generates a processed signal, including the signal processing circuitry reducing a contribution by the first signal. The processed signal is provided to receiver circuitry of the transceiver.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: January 19, 2016
    Assignee: Lattice Semiconductor Corporation
    Inventors: Rahul Velitheri, Vinayak Agrawal, Namrta Sharma, Prashanth Tirunagari, Manjusha Manchikalapudi
  • Publication number: 20160006584
    Abstract: Embodiments of the invention are generally directed driving data of multiple protocols through a single set of pins. An embodiment of an apparatus includes a transmitter connected to two pads on an IC the transmitter including a differential driver to transmit a differential signal, wherein the differential driver has a first branch and a second branch, each branch of the differential driver including a protection device connected to one of the pads; and a common mode driver to transmit a common mode signal, the common mode driver having a first branch and a second branch, each of the branches of the common mode driver including a protection device connected to one of the pads. The first and second switch devices are not turned on simultaneously, based on data to be transmitted, one of the switch devices being turned on and the other being turned off.
    Type: Application
    Filed: March 14, 2013
    Publication date: January 7, 2016
    Inventors: Vinayak Agrawal, Namrta Sharma, Nagaraj Chekka, Srikanth Gondi
  • Publication number: 20150333932
    Abstract: Embodiments of the invention are generally directed to elements to counter transmitter circuit performance limitations. An embodiment of an apparatus for driving data on a differential channel including a first output terminal and a second output terminal includes a differential driver circuit; and a first pre-driver and a second pre-driver, where each pre-driver has an output, wherein the first output terminal of the apparatus is coupled to the output of the first pre-driver, and the second output terminal of the apparatus is coupled to the output of the second pre-driver, where each pre-driver includes one or more capacitors, a first end of each capacitor being connected to the output of the pre-driver and a second end of each of the capacitors being connected to a sub-pre-driver circuit.
    Type: Application
    Filed: July 29, 2015
    Publication date: November 19, 2015
    Inventors: Vinayak AGRAWAL, Namrta SHARMA, Deepak Ramapuram
  • Patent number: 9130794
    Abstract: Embodiments of the invention are generally directed to elements to counter transmitter circuit performance limitations. An embodiment of an apparatus for driving data on a differential channel including a first output terminal and a second output terminal includes a differential driver circuit; and a first pre-driver and a second pre-driver, where each pre-driver has an output, wherein the first output terminal of the apparatus is coupled to the output of the first pre-driver, and the second output terminal of the apparatus is coupled to the output of the second pre-driver, where each pre-driver includes one or more capacitors, a first end of each capacitor being connected to the output of the pre-driver and a second end of each of the capacitors being connected to a sub-pre-driver circuit.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 8, 2015
    Assignee: Silicon Image, Inc.
    Inventors: Vinayak Agrawal, Namrta Sharma, Deepak Ramapuram
  • Publication number: 20150214943
    Abstract: Techniques and mechanisms for switching between a plurality of inputs each to receive a respective analog signal to be transmitted. In an embodiment, switch circuitry comprises a first input to receive a first signal, a second input to receive a second signal, and one or more T-coil circuits including a first T-coil circuit. A first configuration of the switch circuitry includes a first signal path via a first switch coupled between the first input and a primary input node of the first T-coil circuit. A second configuration of the switch circuitry includes a second signal path via a second switch coupled between the second input and a secondary input node of the first T-coil circuit. In an embodiment, control logic transitions the switch circuitry among a plurality of configurations including the first configuration and the second configuration.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 30, 2015
    Applicant: Silicon Image, Inc.
    Inventors: Prashanth Tirunagari, Vinayak Agrawal, Namrta Sharma, Manjusha Manchikalapudi, Rahul Velitheri
  • Publication number: 20150215105
    Abstract: Techniques and methods for performing asymmetric, full-duplex communication via a signal line. In an embodiment, a transceiver includes transmit circuitry to transmit a first signal via a node coupled to a signal line, where the first signal is transmitted concurrently with the transceiver receiving a second signal via the node at a substantially different data rate than that of the first signal. In another embodiment, signal processing circuitry of the transceiver detects a composite signal at the node, the composite signal including a combination of the first signal and the second signal. Based on the combination of the first signal and the second signal, the signal processing circuitry generates a processed signal, including the signal processing circuitry reducing a contribution by the first signal. The processed signal is provided to receiver circuitry of the transceiver.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 30, 2015
    Applicant: Silicon Image, Inc.
    Inventors: Rahul Velitheri, Vinayak Agrawal, Namrta Sharma, Prashanth Tirunagari, Manjusha Manchikalapudi
  • Publication number: 20140266302
    Abstract: Embodiments of the invention are generally directed to elements to counter transmitter circuit performance limitations. An embodiment of an apparatus for driving data on a differential channel including a first output terminal and a second output terminal includes a differential driver circuit; and a first pre-driver and a second pre-driver, where each pre-driver has an output, wherein the first output terminal of the apparatus is coupled to the output of the first pre-driver, and the second output terminal of the apparatus is coupled to the output of the second pre-driver, where each pre-driver includes one or more capacitors, a first end of each capacitor being connected to the output of the pre-driver and a second end of each of the capacitors being connected to a sub-pre-driver circuit.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Vinayak Agrawal, Namrta Sharma, Deepak Ramapuram