Patents by Inventor Narasimha Acharya

Narasimha Acharya 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: 11152953
    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a first device may transmit a signal to a second device including a number of error detection bits interleaved with a number of information bits. The second device may use the error detection bits to determine if the signal was received correctly, where each error detection bit may be associated with a set of information bits. The second device may progressively decode the signal and continuously perform an error detection calculation based on a first set of information bits associated with a first error detection bit. Based on the error detection calculation, the second device may calculate an expected error detection bit corresponding to the first error detection bit. The second device may compare the first error detection bit to the expected error detection bit. Other aspects and features are also claimed and described.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: October 19, 2021
    Assignee: QUALCOMM INCORPORATED
    Inventors: Afshin Haftbaradaran, Ming Ta Lin, Shravan Kumar Reddy Garlapati, Alessandro Risso, Alexandre Pierrot, Harsha Narasimha Acharya, Subramanya Rao, Li Zhang
  • Publication number: 20210273651
    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a first device may transmit a signal to a second device including a number of error detection bits interleaved with a number of information bits. The second device may use the error detection bits to determine if the signal was received correctly, where each error detection bit may be associated with a set of information bits. The second device may progressively decode the signal and continuously perform an error detection calculation based on a first set of information bits associated with a first error detection bit. Based on the error detection calculation, the second device may calculate an expected error detection bit corresponding to the first error detection bit. The second device may compare the first error detection bit to the expected error detection bit. Other aspects and features are also claimed and described.
    Type: Application
    Filed: February 28, 2020
    Publication date: September 2, 2021
    Inventors: Afshin Haftbaradaran, Ming Ta Lin, Shravan Kumar Reddy Garlapati, Alessandro Risso, Alexandre Pierrot, Harsha Narasimha Acharya, Subramanya Rao, Li Zhang
  • Patent number: 8837923
    Abstract: Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: September 16, 2014
    Assignee: Mattson Technology, Inc.
    Inventors: Paul J. Timans, Narasimha Acharya
  • Publication number: 20110236844
    Abstract: Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
    Type: Application
    Filed: June 13, 2011
    Publication date: September 29, 2011
    Inventors: Paul J. Timans, Narasimha Acharya
  • Patent number: 8000587
    Abstract: Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: August 16, 2011
    Assignee: Mattson Technology, Inc.
    Inventors: Paul J. Timans, Narasimha Acharya
  • Publication number: 20080069550
    Abstract: Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
    Type: Application
    Filed: November 20, 2007
    Publication date: March 20, 2008
    Inventors: Paul Timans, Narasimha Acharya
  • Patent number: 7317870
    Abstract: Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: January 8, 2008
    Assignee: Mattson Technology, Inc.
    Inventors: Paul J. Timans, Narasimha Acharya
  • Publication number: 20080001316
    Abstract: Disclosed herein are embossing lines and methods for their use. In one embodiment an embossing line comprises: an embossing belt disposed about a heating roll and a chill roll, a joining roll disposed between the heating roll and the chill roll, and a pre-embossing heater disposed between the joining roll and the heating roll such that the substrate film can be heated by the pre-embossing heater prior to the embossing belt contacting the heating roll. In another embodiment, a film making process is disclosed.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventors: Sanjog Shyam Jain, Narasimha Acharya, Shailendra Pramod Joshi, Ashwit Dias, Nitin Vaish
  • Publication number: 20070001333
    Abstract: An apparatus and method for forming a textured polymeric film are disclosed. The apparatus includes a first roller and a second roller, wherein the first roller and the second roller may be configured to cooperatively form the textured polymeric film. In one embodiment, a limited portion of at least the first roller is heated, passively, actively, or by a combination of active and passive techniques.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Inventors: Ashwit Dias, Hari Harikumar, Narasimha Acharya, Sanjog Jain, Mahendra Patil, Shailendra Joshi, Robert Tatterson
  • Patent number: 7037797
    Abstract: The present invention is directed to an apparatus and process for locally heating and/or cooling of semiconductor wafers in thermal processing chambers. In particular, the apparatus of the present invention includes a device for heating or cooling localized regions of a wafer to control the temperature of such regions during one or more stages of a heat cycle. In one embodiment, gas nozzles eject gas towards the bottom of the wafer to provide localized temperature control. In another embodiment, a transparent gas pipe containing a variety of gas outlets distributes gas onto the top surface of the wafer to provide localized temperature control.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: May 2, 2006
    Assignee: Mattson Technology, Inc.
    Inventors: Sohaila Shooshtarian, Narasimha Acharya, Mike Elbert, Andreas Tillmann, Dieter Zernickel
  • Patent number: 6951996
    Abstract: Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: October 4, 2005
    Assignee: Mattson Technology, Inc.
    Inventors: Paul J. Timans, Narasimha Acharya
  • Patent number: 6849831
    Abstract: Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: February 1, 2005
    Assignee: Mattson Technology, Inc.
    Inventors: Paul J. Timans, Narasimha Acharya
  • Publication number: 20040149715
    Abstract: Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
    Type: Application
    Filed: December 29, 2003
    Publication date: August 5, 2004
    Inventors: Paul J. Timans, Narasimha Acharya
  • Publication number: 20030183612
    Abstract: Pulsed processing methods and systems for heating objects such as semiconductor substrates feature process control for multi-pulse processing of a single substrate, or single or multi-pulse processing of different substrates having different physical properties. Heat is applied a controllable way to the object during a background heating mode, thereby selectively heating the object to at least generally produce a temperature rise throughout the object during background heating. A first surface of the object is heated in a pulsed heating mode by subjecting it to at least a first pulse of energy. Background heating is controlled in timed relation to the first pulse. A first temperature response of the object to the first energy pulse may be sensed and used to establish at least a second set of pulse parameters for at least a second energy pulse to at least partially produce a target condition.
    Type: Application
    Filed: July 30, 2002
    Publication date: October 2, 2003
    Inventors: Paul J. Timans, Narasimha Acharya