Patents by Inventor Venkatraman Iyer

Venkatraman Iyer 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).

  • Publication number: 20160182154
    Abstract: An optical element is to be coupled to a second device by the second electrical link. The particular optical element is further to receive a first signal from the second device over a first inbound lane of the second electrical link, receive a second signal from the second device over a second inbound lane of the second electrical link, and multiplex the first and second signals on a particular optical link to send the first and second signals to the first device.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Jing Fang, Zuoguo Wu, Venkatraman Iyer
  • Publication number: 20160179710
    Abstract: An apparatus that includes a physical interface for a serial interconnect is provided. The physical interface includes a buffer that is selectable to function as a drift buffer or an elastic buffer by a voltage level on a buffer control line. The physical interface also includes encoding logic that can be enabled or disabled by a voltage level on a logic control line. Further, the physical interface also includes and an ordered set generator that can be enabled or disabled by a voltage level on a communications control line.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 23, 2016
    Applicant: Intel Corporation
    Inventors: Debendra Das Sharma, Daniel S. Froelich, Venkatraman Iyer, Michelle C. Jen, Rahul R. Shah, Eric M. Lee
  • Publication number: 20160179740
    Abstract: A signal is received, a boundary of which is to be sent in alignment with a sync counter value. A nominal latency of a link is determined based on the sync counter value. Additional latency is applied to the signal to increase the nominal latency to a target latency for the link.
    Type: Application
    Filed: December 20, 2014
    Publication date: June 23, 2016
    Inventors: William R. Halleck, Rahul Shah, Venkatraman Iyer
  • Publication number: 20160179427
    Abstract: Data is sent to correspond to a load/store-type operation associated with shared memory over a link according to a memory access link protocol and the memory access link protocol is to be overlaid on another, different link protocol. A request is sent to enter a low power state, where the request is to include a data value encoded in a field of a token, the token is to indicate a start of packet data and is to further indicate whether subsequent data to be sent after the token is to include data according to one of the other link protocol and the memory access link protocol.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 23, 2016
    Inventors: Michelle C. Jen, Debendra Das Sharma, Mahesh Wagh, Venkatraman Iyer
  • Publication number: 20160179730
    Abstract: A supersequence is sent to another device to indicate a transition from a partial width link state to another active link state. The supersequence is to be sent over one or more lanes of a link and is to include at least a portion of a start of data sequence (SDS) to include a predefined sequence and a byte number value. The byte number value is to indicate a number of bytes measured from a preceding control interval.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: William R. Halleck, Rahul Shah, Venkatraman Iyer
  • Patent number: 9355058
    Abstract: A periodic control window is embedded in a link layer data stream to be sent over a serial data link, where the control window is configured to provide physical layer information including information for use in initiating state transitions on the data link. The link layer data can be sent during a link transmitting state of the data link and the control window can interrupt the sending of flits. In one aspect, the information includes link width transition data indicating an attempt to change the number of active lanes on the link.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: May 31, 2016
    Assignee: Intel Corporation
    Inventors: Venkatraman Iyer, Darren S. Jue, Robert G. Blankenship, Fulvio Spagna, Debendra Das Sharma, Jeffrey C. Swanson
  • Patent number: 9299738
    Abstract: The present invention includes an interposer disposed on a surface of a substrate, a light sensing array sensor disposed on the interposer, the light sensing array sensor being back-thinned and configured for back illumination, the light sensing array sensor including columns of pixels, one or more amplification circuitry elements configured to amplify an output of the light sensing array sensor, the amplification circuits being operatively connected to the interposer, one or more analog-to-digital conversion circuitry elements configured to convert an output of the light sensing array sensor to a digital signal, the ADC circuitry elements being operatively connected to the interposer, one or more driver circuitry elements configured to drive a clock or control signal of the array sensor, the interposer configured to electrically couple at least two of the light sensing array sensor, the amplification circuits, the conversion circuits, the driver circuits, or one or more additional circuits.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: March 29, 2016
    Assignee: KLA-Tencor Corporation
    Inventors: David L. Brown, Guowu Zheng, Yung-Ho Alex Chuang, Venkatraman Iyer
  • Publication number: 20160085619
    Abstract: A bit error in a flit transmitted over a link is determined to affect one or more particular bits of the flit based on a syndrome value associated with a cyclic redundancy check (CRC) value of the flit. The link includes a plurality of lanes. It is determined that the one or more particular bits were sent over one or more particular lanes of the link. The bit error is associated with the one or more particular lanes based on determining that the affected bits were transmitted over the particular lanes.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: Venkatraman Iyer, Robert G. Blankenship, Debendra Das Sharma
  • Patent number: 9280507
    Abstract: A reset of a synchronization counter is synchronized to an external deterministic signal. Entry into the link transmitting state is further synchronized with the deterministic signal. A target latency is identified for a serial data link. A data sequence is received synchronized with a synchronization counter associated with the data link. Target latency can be maintained using the data sequence.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: March 8, 2016
    Assignee: INTEL CORPORATION
    Inventors: Venkatraman Iyer, Darren S. Jue, Jeff Willey, Robert G. Blankenship
  • Publication number: 20160064184
    Abstract: A scanning electron microscope incorporates a multi-pixel solid-state electron detector. The multi-pixel solid-state detector may detect back-scattered and/or secondary electrons. The multi-pixel solid-state detector may incorporate analog-to-digital converters and other circuits. The multi-pixel solid state detector may be capable of approximately determining the energy of incident electrons and/or may contain circuits for processing or analyzing the electron signals. The multi-pixel solid state detector is suitable for high-speed operation such as at a speed of about 100 MHz or higher. The scanning electron microscope may be used for reviewing, inspecting or measuring a sample such an unpatterned semiconductor wafer, a patterned semiconductor wafer, a reticle or a photomask. A method of reviewing or inspecting a sample is also described.
    Type: Application
    Filed: August 25, 2015
    Publication date: March 3, 2016
    Inventors: David L. Brown, Yung-Ho Alex Chuang, John Fielden, Marcel Trimpl, Jingjing Zhang, Devis Contarato, Venkatraman Iyer
  • Patent number: 9263962
    Abstract: An exemplary power conversion system includes a first power conversion module, a second power conversion module, and a controller. The first power conversion module includes a first source side converter, a first load side converter, and a first DC link coupled between the first source side converter and the second load side converter. The second power conversion module includes a second source side converter, a second load side converter, and a second DC link coupled between the second source side converter and the second load side converter. The controller is configured to generate a number of switching signals according to a circuit structure of the power source module or a circuit structure of the load module. The switching signals are provided to the first power conversion module and the second power conversion module to balance a first DC link voltage and a second DC link voltage.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: February 16, 2016
    Assignee: General Electric Company
    Inventors: Wenqiang Yang, Hongwu She, Rajendra Naik, Shivkumar Venkatraman Iyer
  • Patent number: 9229897
    Abstract: Methods and apparatus for embedding a control channel in a high speed serial interconnect having multiple data lanes. Operational aspects of the interconnect are controlled via use of control channel data that is sent over one or more of the data lanes on a periodic basis. A link state cycle is employed that includes a link control period during which control information is transferred over the interconnect and a link control interval between link control periods during which other links states are implemented, such as for transferring data or operating the link in a low power state. The link state cycles at transmitter and receiver ports are synchronized to account for link transmit latencies, and the timing of link state cycles corresponding to a bidirectional exchange of link control information may be configured to support an overlapping implementation or to facilitate a request/response link control protocol.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: January 5, 2016
    Assignee: Intel Corporation
    Inventors: Venkatraman Iyer, Debendra Das Sharma, Robert G. Blankenship, Darren S. Jue
  • Patent number: 9208121
    Abstract: A periodic control window is embedded in a link layer data stream to be sent over a serial data link, where the control window is configured to provide physical layer information including information for use in initiating state transitions on the data link. The link layer data can be sent during a link transmitting state of the data link and the control window can interrupt the sending of flits. In one aspect, the information includes link width transition data indicating an attempt to change the number of active lanes on the link.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: December 8, 2015
    Assignee: Intel Corporation
    Inventors: Venkatraman Iyer, Darren S. Jue, Robert G. Blankenship, Fulvio Spagna, Debendra Das Sharma, Jeffrey C. Swanson
  • Patent number: 9183171
    Abstract: Methods and apparatus relating to fast deskew when exiting a low-power partial-width high speed link state are described. In one embodiment, an exit flit on active lanes and/or a wake signal/sequence on idle lanes may be transmitted at a first point in time to cause one or more idle lanes of a link to enter an active state. At a second point in time (following or otherwise subsequent to the first point in time), training sequences are transmitted over the one or more idle lanes of the link. And, the one or more idle lanes are deskewed in response to the training sequences and prior to a third point in time (following or otherwise subsequent to the second point in time). Other embodiments are also disclosed and claimed.
    Type: Grant
    Filed: September 29, 2012
    Date of Patent: November 10, 2015
    Assignee: Intel Corporation
    Inventors: Venkatraman Iyer, Debendra Das Sharma, Robert G. Blankenship, Darren S. Jue
  • Patent number: 9104793
    Abstract: A method and system to adapt communication links statically and/or dynamically to their individual link conditions on a platform. The communicatively coupled devices have logic to adapt one or more settings of a respective one or more communication links with another device based at least in part on a respective metric of received data patterns from the respective one or more communication links. The communicatively coupled devices in the platform have a back channel to allow feedback or information to be sent from one receiving device to a transmitting device in one embodiment of the invention.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: August 11, 2015
    Assignee: Intel Corporation
    Inventors: Venkatraman Iyer, Arvind Kumar, Santanu Chaudhuri, Darren S. Jue, Dennis R. Halicki
  • Publication number: 20150205741
    Abstract: A set of training sequences is generated, each training sequence to include a respective training sequence header, and the training sequence header is to be DC-balanced over the set of training sequences. The set of training sequences can be combined with electric ordered sets to form supersequences for use in such tasks as link adaptation, link state transitions, byte lock, deskew, and other tasks.
    Type: Application
    Filed: March 28, 2015
    Publication date: July 23, 2015
    Inventors: Venkatraman Iyer, Darren S. Jue, Sitaraman V. Iyer
  • Publication number: 20150200216
    Abstract: An image sensor for short-wavelength light includes a semiconductor membrane, circuit elements formed on one surface of the semiconductor membrane, and a pure boron layer on the other surface of the semiconductor membrane. An anti-reflection or protective layer is formed on top of the pure boron layer. This image sensor has high efficiency and good stability even under continuous use at high flux for multiple years. The image sensor may be fabricated using CCD (charge coupled device) or CMOS (complementary metal oxide semiconductor) technology. The image sensor may be a two-dimensional area sensor, or a one-dimensional array sensor.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 16, 2015
    Inventors: Masaharu Muramatsu, Hisanori Suzuki, Yasuhito Yoneta, Shinya Otsuka, Jehn-Huar Chem, David L. Brown, Yung-Ho Alex Chuang, John Fielden, Venkatraman Iyer
  • Publication number: 20150169486
    Abstract: A reset of a synchronization counter is synchronized to an external deterministic signal. Entry into the link transmitting state is further synchronized with the deterministic signal. A target latency is identified for a serial data link. A data sequence is received synchronized with a synchronization counter associated with the data link. Target latency can be maintained using the data sequence.
    Type: Application
    Filed: November 12, 2014
    Publication date: June 18, 2015
    Inventors: Venkatraman Iyer, Darren S. Jue, Jeff Willey, Robert G. Blankenship
  • Publication number: 20150074440
    Abstract: Methods and apparatus relating to link power savings with state retention are described. In one embodiment, one or more components of two agents coupled via a serial link are turned off during idle periods while retaining link state in each agent. Other embodiments are also disclosed.
    Type: Application
    Filed: July 1, 2014
    Publication date: March 12, 2015
    Inventors: NAVEEN CHERUKURI, JEFFREY WILCOX, VENKATRAMAN IYER, SELIM BILGIN, DAVID S. DUNNING, TIM FRODSHAM, THEODORE Z. SCHOENBORN, SANJAY DABRAL
  • Publication number: 20150067207
    Abstract: A serial data link is to be adapted during initialization of the link. Adaptation of the link is to include receiving a pseudorandom binary sequence (PRBS) from a remote agent, analyzing the PRBS to identify characteristics of the data link, and generating metric data describing the characteristics.
    Type: Application
    Filed: November 12, 2014
    Publication date: March 5, 2015
    Inventors: Venkatraman Iyer, Darren S. Jue, Rahul Shah, Arvind Kumar