Patents by Inventor Saravanan MARIMUTHU

Saravanan MARIMUTHU 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: 11823962
    Abstract: Aspects of the disclosure are directed to sensing integrated circuit (IC) Back End Of Line (BEOL) process corners. In one aspect, an apparatus for sensing IC BEOL process corners includes a ring oscillator including a plurality of ring oscillator stages configured to generate an output waveform with a frequency state; and a shield net circuit including a plurality of shield net stages corresponding to the plurality of ring oscillator stages, the shield net circuit having a toggle input. And, a method includes generating an output waveform with a frequency state using a ring oscillator that includes a plurality of ring oscillator stages; modifying a plurality of ring oscillator stage time delays through a coupling between a plurality of shield net stages and the plurality of ring oscillator stages; and selecting the frequency state using a toggle input of a shield net circuit which includes the plurality of shield net stages.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: November 21, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Saravanan Marimuthu, De Lu, Baldeo Sharan Sharma, Peeyush Kumar Parkar, Venkat Narayanan, Rui Li, Samy Shafik Tawfik Zaynoun, Min Chen, David Kidd, Amit Patil
  • Publication number: 20220270938
    Abstract: Aspects of the disclosure are directed to sensing integrated circuit (IC) Back End Of Line (BEOL) process corners. In one aspect, an apparatus for sensing IC BEOL process corners includes a ring oscillator including a plurality of ring oscillator stages configured to generate an output waveform with a frequency state; and a shield net circuit including a plurality of shield net stages corresponding to the plurality of ring oscillator stages, the shield net circuit having a toggle input. And, a method includes generating an output waveform with a frequency state using a ring oscillator that includes a plurality of ring oscillator stages; modifying a plurality of ring oscillator stage time delays through a coupling between a plurality of shield net stages and the plurality of ring oscillator stages; and selecting the frequency state using a toggle input of a shield net circuit which includes the plurality of shield net stages.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 25, 2022
    Inventors: Saravanan MARIMUTHU, De LU, Baldeo Sharan SHARMA, Peeyush Kumar PARKAR, Venkat NARAYANAN, Rui LI, Samy Shafik Tawfik ZAYNOUN, Min CHEN, David KIDD, Amit PATIL
  • Patent number: 10533283
    Abstract: Described herein are devices and methods for the drying of permeable and semi-permeable webs such as paper products in a physical environment with limited space while providing for higher flow rates. The devices and methods of the present invention are for use with rotating, foraminous shelled roll dryers and are implemented by redesigning the aspects of the devices and methods associated with exhausting spent drying gas.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: January 14, 2020
    Assignee: Valmet, Inc.
    Inventors: Richard Alan Parker, Laurent R. Parent, Saravanan Marimuthu
  • Publication number: 20190024313
    Abstract: Described herein are devices and methods for the drying of permeable and semi-permeable webs such as paper products in a physical environment with limited space while providing for higher flow rates. The devices and methods of the present invention are for use with rotating, foraminous shelled roll dryers and are implemented by redesigning the aspects of the devices and methods associated with exhausting spent drying gas.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 24, 2019
    Inventors: Richard Alan Parker, Laurent R. Parent, Saravanan Marimuthu
  • Patent number: 9053773
    Abstract: An integrated circuit element is disclosed having a memory device; a P-type semiconductor region including a first semiconductor device from a first memory port circuit coupled to the memory device and configured to enable access to the memory device when the first semiconductor device is activated; an N-type semiconductor region including a second semiconductor device from a second memory port circuit coupled to the memory device and configured to enable access to the memory device when the second semiconductor device is activated; and a plurality of signal lines distributed over the P-type and N-type semiconductor regions including a first memory port selection line coupled to allow the first semiconductor device to be activated; a second memory port selection line coupled to allow the second semiconductor device to be activated; and a clock signal line placed between the first memory port selection line and the second memory port selection line.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: June 9, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Saravanan Marimuthu, Sachin Bapat, Sakthivel Packirisamy
  • Patent number: 9020084
    Abstract: Techniques for resolving a metastable state in a synchronizer are described herein. In one embodiment, a circuit for resolving a metastable state in a synchronizer comprises a signal delay circuit coupled to a node of the synchronizer, wherein the signal delay circuit is configured to delay a data signal at the node to produce a delayed data signal, and a transmission circuit coupled to the signal delay circuit, wherein the transmission circuit is configured to couple the delayed data signal to the node after a delay from a first edge of a clock signal.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: April 28, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Seid Hadi Rasouli, Animesh Datta, Saravanan Marimuthu, Ohsang Kwon
  • Publication number: 20150109025
    Abstract: A CMOS device includes a PMOS transistor and an NMOS transistor. The CMOS device further includes a poly interconnect connecting together a drain of the PMOS transistor and a drain of the NMOS transistor. The poly interconnect may be located on an edge of a standard cell including the device. The CMOS device may further include a first interconnect on an MD layer connecting the drain of the PMOS transistor to the poly interconnect, and a second interconnect on the MD layer connecting the drain of the NMOS transistor to the poly interconnect. The PMOS transistor and the NMOS transistor may operate as a CMOS inverter. The CMOS device may be a tristate inverter, and specifically, a tristate inverter within a latch array.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 23, 2015
    Applicant: Qualcomm Incorporated
    Inventors: Saravanan MARIMUTHU, Sakthivel PACKIRISAMY, Vijayalakshmi RANGANNA
  • Publication number: 20140211893
    Abstract: Techniques for resolving a metastable state in a synchronizer are described herein. In one embodiment, a circuit for resolving a metastable state in a synchronizer comprises a signal delay circuit coupled to a node of the synchronizer, wherein the signal delay circuit is configured to delay a data signal at the node to produce a delayed data signal, and a transmission circuit coupled to the signal delay circuit, wherein the transmission circuit is configured to couple the delayed data signal to the node after a delay from a first edge of a clock signal.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Seid Hadi Rasouli, Animesh Datta, Saravanan Marimuthu, Ohsang Kwon
  • Publication number: 20140177344
    Abstract: An integrated circuit element is disclosed having a memory device; a P-type semiconductor region including a first semiconductor device from a first memory port circuit coupled to the memory device and configured to enable access to the memory device when the first semiconductor device is activated; an N-type semiconductor region including a second semiconductor device from a second memory port circuit coupled to the memory device and configured to enable access to the memory device when the second semiconductor device is activated; and a plurality of signal lines distributed over the P-type and N-type semiconductor regions including a first memory port selection line coupled to allow the first semiconductor device to be activated; a second memory port selection line coupled to allow the second semiconductor device to be activated; and a clock signal line placed between the first memory port selection line and the second memory port selection line.
    Type: Application
    Filed: September 12, 2013
    Publication date: June 26, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Saravanan MARIMUTHU, Sachin BAPAT, Sakthivel PACKIRISAMY