Patents by Inventor Anil K. Sabbavarapu

Anil K. Sabbavarapu 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: 9652259
    Abstract: The setting in a configuration register is controlled based on a value stored in a management register and/or based on generation of a reset signal during a debugging operation or detection of a malfunction or power state transition in an electronic system. The management register may allocate a single bit to each configuration register, and the setting to be loaded into the configuration register is to be controlled based on the value of the bit. Additionally, or alternatively, the setting in the configuration register may be controlled when the reset signal assumes a value indicating that a default setting is to be stored.
    Type: Grant
    Filed: October 1, 2011
    Date of Patent: May 16, 2017
    Assignee: Intel Corporation
    Inventors: Blaise Fanning, Anil K. Sabbavarapu
  • Patent number: 9620088
    Abstract: Technologies for low-power display refresh standby include a computing device with a display such as an LCD panel. The computing device may include a system-on-a-chip (SoC) with a processor, I/O subsystem, display controller, and memory. When the computing device determines that a display image is static, the computing device enters a low-power display refresh standby mode, powering down unneeded components of the SoC such as processor cores, peripheral devices, and memory other than a dedicated display buffer. The display controller may access the dedicated display buffer via the I/O subsystem and output the image to the display. The computing device may power down the I/O subsystem and the dedicated display buffer when a display controller FIFO is full of image data, and periodically power on the I/O subsystem and display buffer to fill the display controller FIFO. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: April 11, 2017
    Assignee: Intel Corporation
    Inventors: Vasudev Bibikar, Rajesh Poornachandran, Ajaya V. Durg, Arpit Shah, Anil K. Sabbavarapu, Nabil F. Kerkiz, Quang T. Le, Ryan R. Pinto, Moorthy Rajesh, James A. Bish, Ranjani Sridharan
  • Publication number: 20160267883
    Abstract: Technologies for low-power display refresh standby include a computing device with a display such as an LCD panel. The computing device may include a system-on-a-chip (SoC) with a processor, I/O subsystem, display controller, and memory. When the computing device determines that a display image is static, the computing device enters a low-power display refresh standby mode, powering down unneeded components of the SoC such as processor cores, peripheral devices, and memory other than a dedicated display buffer. The display controller may access the dedicated display buffer via the I/O subsystem and output the image to the display. The computing device may power down the I/O subsystem and the dedicated display buffer when a display controller FIFO is full of image data, and periodically power on the I/O subsystem and display buffer to fill the display controller FIFO. Other embodiments are described and claimed.
    Type: Application
    Filed: March 11, 2015
    Publication date: September 15, 2016
    Inventors: Vasudev Bibikar, Rajesh Poornachandran, Ajaya V. Durg, Arpit Shah, Anil K. Sabbavarapu, Nabil F. Kerkiz, Quang T. Le, Ryan R. Pinto, Moorthy Rajesh, James A. Bish, Ranjani Sridharan
  • Patent number: 7877619
    Abstract: In some embodiments, a power up (or power mode) interface is provided whereby a chip's power up signals are encoded into multiple states to provide more functions than the number of signals used to define the states.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: January 25, 2011
    Inventors: Ramana Rachakonda, Blaise Fanning, Anil K Sabbavarapu, Belliappa M. Kuttanna, Rajesh Patel, Kenneth D. Shoemaker, Lance E. Hacking, Bruce L. Fleming, Ashish V. Choubal
  • Publication number: 20090172429
    Abstract: In some embodiments, a power up (or power mode) interface is provided whereby a chip's power up signals are encoded into multiple states to provide more functions than the number of signals used to define the states.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Inventors: Ramana Rachakonda, Blaise Fanning, Anil K. Sabbavarapu, Belliappa M. Kuttanna, Rajesh Patel, Kenneth D. Shoemaker, Lance E. Hacking, Bruce L. Fleming, Ashish V. Choubal
  • Patent number: 7437634
    Abstract: A sequential scan cell includes an input port for functional data and an input for scan test data. The input for scan test data is an input to a master scan flip-flop coupled to a slave scan flip-flop defining a scan test circuit. Such a scan test circuit is coupled to the functional circuit of the sequential scan cell such that the path for a functional signal is not through the scan test circuit, imparting no performance penalty to the functional signal. Scan test data is scanned in and out of the sequential cell by two non-overlapping scan clocks that are active only when system functional clocks are in an off state.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: October 14, 2008
    Assignee: Intel Corporation
    Inventors: Talal K. Jaber, Anil K. Sabbavarapu
  • Patent number: 7216274
    Abstract: A testing architecture for testing a complex integrated circuit in which each functional unit may be tested independently of the others. Embodiments of the invention allow testing of functional units to take place at slower or faster clock speeds than other portions of the processor without incurring delay or other adverse timing effects.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: May 8, 2007
    Assignee: Intel Corporation
    Inventors: Talal K. Jaber, Srinivas Patil, Larry E. Thatcher, Chih-Jen M. Lin, Anil K. Sabbavarapu, David M. Wu, Madhukar K. Reddy
  • Publication number: 20040267504
    Abstract: A testing architecture for testing a complex integrated circuit in which each functional unit may be tested independently of the others. Embodiments of the invention allow testing of functional units to take place at slower or faster clock speeds than other portions of the processor without incurring delay or other adverse timing effects.
    Type: Application
    Filed: June 26, 2003
    Publication date: December 30, 2004
    Inventors: Talal K. Jaber, Srinivas Patil, Larry E. Thatcher, Chih-Jen M. Lin, Anil K. Sabbavarapu, David M. Wu, Madhukar K. Reddy
  • Publication number: 20040243896
    Abstract: A sequential scan cell includes an input port for functional data and an input for scan test data. The input for scan test data is an input to a master scan flip-flop coupled to a slave scan flip-flop defining a scan test circuit. Such a scan test circuit is coupled to the functional circuit of the sequential scan cell such that the path for a functional signal is not through the scan test circuit, imparting no performance penalty to the functional signal. Scan test data is scanned in and out of the sequential cell by two non-overlapping scan clocks that are active only when system functional clocks are in an off state.
    Type: Application
    Filed: May 13, 2003
    Publication date: December 2, 2004
    Applicant: Intel Corporation
    Inventors: Talal K. Jaber, Anil K. Sabbavarapu
  • Patent number: 6815977
    Abstract: According to some embodiments, a circuit includes a Domino state element, a master latch to receive a first clock signal and to store a value in the Domino state element in response to the first clock signal, and a slave latch to receive a second clock signal and to output the value in response to the second clock signal. Some embodiments provide a first state element coupled to a first node, a master latch coupled to the first state element, the master latch to receive a first storage signal, a first load signal, a first clock signal and a first scan value signal, a second state element coupled to a second node, the second node sequential to the first node, and a slave latch coupled to the second state element, the slave latch to receive a second storage signal, a second load signal, a second clock signal and a second scan value signal.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: November 9, 2004
    Assignee: Intel Corporation
    Inventors: Anil K. Sabbavarapu, Talal K. Jaber, Grant W. McFarland, Paven R. Sunkerneni, David M. Wu
  • Publication number: 20040119501
    Abstract: According to some embodiments, a circuit includes a Domino state element, a master latch to receive a first clock signal and to store a value in the Domino state element in response to the first clock signal, and a slave latch to receive a second clock signal and to output the value in response to the second clock signal. Some embodiments provide a first state element coupled to a first node, a master latch coupled to the first state element, the master latch to receive a first storage signal, a first load signal, a first clock signal and a first scan value signal, a second state element coupled to a second node, the second node sequential to the first node, and a slave latch coupled to the second state element, the slave latch to receive a second storage signal, a second load signal, a second clock signal and a second scan value signal.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Inventors: Anil K. Sabbavarapu, Talal K. Jaber, Grant W. McFarland, Pavan R. Sunkerneni, David M. Wu