Patents by Inventor Wayne Dettloff

Wayne Dettloff 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: 9711239
    Abstract: A single-ended receiver includes an internal voltage generation circuit to set a first internal reference voltage (Vref). A model voltage generation circuit is configurable to receive an external reference voltage to be calibrated during an initial calibration. The model voltage generation circuit is configurable to track an offset value for voltage-temperature (VT) drift and the offset value is applied to the internal voltage generation circuit to calibrate the internal Vref during a periodic calibration of the single-ended receiver.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: July 18, 2017
    Assignee: Rambus Inc.
    Inventors: Pravin Kumar Venkatesan, Kashinath Prabhu, Makarand Shirasgaonkar, Wayne Dettloff
  • Publication number: 20160372210
    Abstract: A single-ended receiver includes an internal voltage generation circuit to set a first internal reference voltage (Vref). A model voltage generation circuit is configurable to receive an external reference voltage to be calibrated during an initial calibration. The model voltage generation circuit is configurable to track an offset value for voltage-temperature (VT) drift and the offset value is applied to the internal voltage generation circuit to calibrate the internal Vref during a periodic calibration of the single-ended receiver.
    Type: Application
    Filed: May 31, 2016
    Publication date: December 22, 2016
    Inventors: Pravin Kumar Venkatesan, Kashinath Prabhu, Makarand Shirasgaonkar, Wayne Dettloff
  • Patent number: 9368164
    Abstract: A single-ended receiver includes an internal voltage generation circuit to set a first internal reference voltage (Vref). A model voltage generation circuit is configurable to receive an external reference voltage to be calibrated during an initial calibration. The model voltage generation circuit is configurable to track an offset value for voltage-temperature (VT) drift and the offset value is applied to the internal voltage generation circuit to calibrate the internal Vref during a periodic calibration of the single-ended receiver.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: June 14, 2016
    Assignee: Rambus Inc.
    Inventors: Pravin Kumar Venkatesan, Kashinath Prabhu, Makarand Shirasgaonkar, Wayne Dettloff
  • Publication number: 20140149654
    Abstract: A single-ended receiver includes an internal voltage generation circuit to set a first internal reference voltage (Vref). A model voltage generation circuit is configurable to receive an external reference voltage to be calibrated during an initial calibration. The model voltage generation circuit is configurable to track an offset value for voltage-temperature (VT) drift and the offset value is applied to the internal voltage generation circuit to calibrate the internal Vref during a periodic calibration of the single-ended receiver.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 29, 2014
    Applicant: Rambus Inc.
    Inventors: Pravin Kumar Venkatesan, Kashinath Prabhu, Makarand Shirasgaonkar, Wayne Dettloff
  • Patent number: 8618869
    Abstract: Conventional bias circuits exhibit a number of limitations, including the time required to power-up a bias circuit following a low-power state. Large current surges in the supply network induce ringing, further complicating a power-up process. Example embodiments reduce power-up time and minimize current surges in the supply by selectively charging and discharging capacitance to the circuit during power-up and power-down of the bias circuit.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: December 31, 2013
    Assignee: Rambus Inc.
    Inventors: Wayne Dettloff, John Wilson, Lei Luo, Brian Leibowitz, Jared Zerbe, Pravin Kumar Venkatesan
  • Patent number: 8498344
    Abstract: A data system 102 permits bus encoding based on frequency of the bus; an encoding scheme may be implemented to avoid undesirable frequency conditions such as a resonant condition that may lead to degradation in system performance. The device or integrated circuit will typically include an encoder; in one embodiment, the encoder is a data bus inversion (DBI) circuit that selectively inverts all lines of a data bus. A detector that may include a band-pass or stop-band filter that, for example, evaluates data for transmission on the bus to detect frequency, for example, a predetermined frequency or a frequency range. The detector provides a control signal for the encoder to selectively apply an encoding scheme as a function of frequency.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: July 30, 2013
    Assignee: Rambus Inc.
    Inventors: John M. Wilson, Aliazam Abbasfar, John Eble, III, Lei Luo, Jade M. Kizer, Carl William Werner, Wayne Dettloff
  • Publication number: 20120169412
    Abstract: Conventional bias circuits exhibit a number of limitations, including the time required to power-up a bias circuit following a low-power state. Large current surges in the supply network induce ringing, further complicating a power-up process. Example embodiments reduce power-up time and minimize current surges in the supply by selectively charging and discharging capacitance to the circuit during power-up and power-down of the bias circuit.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 5, 2012
    Applicant: Rambus Inc.
    Inventors: Wayne Dettloff, John Wilson, Lei Luo, Brian Leibowitz, Jared Zerbe, Pravin Kumar Venkatesan
  • Publication number: 20110127990
    Abstract: A data system 102 permits bus encoding based on frequency of the bus; an encoding scheme may be implemented to avoid undesirable frequency conditions such as a resonant condition that may lead to degradation in system performance. The device or integrated circuit will typically include an encoder; in one embodiment, the encoder is a data bus inversion (DBI) circuit that selectively inverts all lines of a data bus. A detector that may include a band-pass or stop-band filter that, for example, evaluates data for transmission on the bus to detect frequency, for example, a predetermined frequency or a frequency range. The detector provides a control signal for the encoder to selectively apply an encoding scheme as a function of frequency.
    Type: Application
    Filed: June 18, 2009
    Publication date: June 2, 2011
    Applicant: RAMBUS INC.
    Inventors: John M. Wilson, Aliazam Abbasfar, John Eble, III, Lei Luo, Jade M. Kizer, Carl William Werner, Wayne Dettloff
  • Publication number: 20090080885
    Abstract: An optical network scheduling device (10) including a plurality of schedulers (16) each corresponding to a respective channel in the optical burst switch network and configured to maintain a transmission schedule for the respective channel; and a controller (12) configured to receive a burst transmission request and to select at least one of the schedulers as a selected scheduler schedule a burst transmission.
    Type: Application
    Filed: May 27, 2005
    Publication date: March 26, 2009
    Applicant: Research Triangel Institute
    Inventors: Pronita Mehrotra, Dan Stevenson, Mark Cassada, Wayne Dettloff
  • Publication number: 20060016481
    Abstract: A valve assembly may include a main housing and first and second electro-statically actuated valves. The main housing may define at least three chambers, with a first chamber configured to be coupled to a high pressure supply port, a second chamber configured to be coupled to an output port, and a third chamber configured to be coupled to a low pressure exhaust port. The first electro-statically actuated valve may be provided between the first and second chambers, and the first electro-statically actuated valve may allow or substantially block fluid communication between the first chamber and the second chamber responsive to a first electrical signal. The second electro-statically actuated valve may be provided between the second and third chambers, and the second electro-statically actuated valve may allow or substantially block fluid communication between the second chamber and the third chamber responsive to a second electrical signal. Related methods are also discussed.
    Type: Application
    Filed: July 22, 2005
    Publication date: January 26, 2006
    Inventors: Kevin Douglas, William Teach, Paul Gibson, Donald Harris, Scott Goodwin, David Dausch, Wayne Dettloff