Patents by Inventor Roger K. Cheng

Roger K. Cheng 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: 11023244
    Abstract: In one embodiment, a link training controller is to train a link. The link training controller may be configured to: update a first link parameter of a link setting for the link to a first value; write data to the memory; read the data from the memory using the first value of the first link parameter; and in response to a determination that the data read from the memory does not match the data written to the memory, send an in-band link recovery command to the memory via the link to cause the memory to participate in a link recovery protocol with the apparatus. Other embodiments are described and claimed.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: June 1, 2021
    Assignee: Intel Corporation
    Inventors: Ee Loon Teoh, Eng Hun Ooi, Roger K. Cheng
  • Patent number: 10923164
    Abstract: An apparatus is provided which comprises: a first power supply rail to provide a first power supply; second and third power supply rails to provide second and third power supplies, respectively, wherein a voltage level of the first power supply is higher than a voltage level of each of the second and third power supplies; a first driver circuitry coupled to the first power supply rail and the second power supply rail; a second driver circuitry coupled to the third power supply rail, and coupled to the first driver circuitry; and a stack of transistors of N conductivity type coupled to the first power supply rail, and to the second driver circuitry.
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: February 16, 2021
    Assignee: Intel Corporation
    Inventors: Hariprasath Venkatram, Mohammed G. Mostofa, Rajesh Inti, Roger K. Cheng, Aaron Martin, Christopher Mozak, Pavan Kumar Kappagantula, Hsien-Pao Yang, Mozhgan Mansuri, James Jaussi, Harishankar Sridharan
  • Patent number: 10672438
    Abstract: An apparatus is provided which comprises: a first circuitry to sample a first input signal to generate a first sampled signal, and to sample a second input signal to generate a second sampled signal, wherein the first input signal comprises data; a second circuitry to receive the first sampled signal and the second sampled signal, and to generate a first pair of differential signals; an offset cancellation circuitry to cancel or reduce an offset in the first pair of differential signals; and a latch to receive the first pair of differential signals subsequent to the cancellation or reduction of the offset, and to output a second pair of differential signals, wherein the second pair of differential signals is indicative of the data.
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: June 2, 2020
    Assignee: Intel Corporation
    Inventors: Mohammed G. Mostofa, Roger K. Cheng, Aaron Martin, Christopher Mozak, Pavan Kumar Kappagantula, Hsien-Pao Yang
  • Publication number: 20200105319
    Abstract: An apparatus is provided which comprises: a first circuitry to sample a first input signal to generate a first sampled signal, and to sample a second input signal to generate a second sampled signal, wherein the first input signal comprises data; a second circuitry to receive the first sampled signal and the second sampled signal, and to generate a first pair of differential signals; an offset cancellation circuitry to cancel or reduce an offset in the first pair of differential signals; and a latch to receive the first pair of differential signals subsequent to the cancellation or reduction of the offset, and to output a second pair of differential signals, wherein the second pair of differential signals is indicative of the data.
    Type: Application
    Filed: September 29, 2018
    Publication date: April 2, 2020
    Applicant: Intel Corporation
    Inventors: Mohammed G. Mostofa, Roger K. Cheng, Aaron Martin, Christopher Mozak, Pavan Kumar Kappagantula, Hsien-Pao Yang
  • Publication number: 20200105317
    Abstract: An apparatus is provided which comprises: a first power supply rail to provide a first power supply; second and third power supply rails to provide second and third power supplies, respectively, wherein a voltage level of the first power supply is higher than a voltage level of each of the second and third power supplies; a first driver circuitry coupled to the first power supply rail and the second power supply rail; a second driver circuitry coupled to the third power supply rail, and coupled to the first driver circuitry; and a stack of transistors of N conductivity type coupled to the first power supply rail, and to the second driver circuitry.
    Type: Application
    Filed: September 29, 2018
    Publication date: April 2, 2020
    Applicant: Intel Corporation
    Inventors: Hariprasath VENKATRAM, Mohammed G. MOSTOFA, Rajesh INTI, Roger K. CHENG, Aaron MARTIN, Christopher MOZAK, Pavan Kumar KAPPAGANTULA, Hsien-Pao YANG, Mozhgan MANSURI, James JAUSSI, Harishankar SRIDHARAN
  • Publication number: 20190095215
    Abstract: In one embodiment, a link training controller is to train a link. The link training controller may be configured to: update a first link parameter of a link setting for the link to a first value; write data to the memory; read the data from the memory using the first value of the first link parameter; and in response to a determination that the data read from the memory does not match the data written to the memory, send an in-band link recovery command to the memory via the link to cause the memory to participate in a link recovery protocol with the apparatus. Other embodiments are described and claimed.
    Type: Application
    Filed: September 25, 2017
    Publication date: March 28, 2019
    Inventors: Ee Loon Teoh, Eng Hun Ooi, Roger K. Cheng
  • Patent number: 10007749
    Abstract: Described is an apparatus which comprises: logic to convert output of at least one sensor to a digital sensing signal; a router coupled to the sensor, the router to receive the digital sensing signal and to map into circuit data; and one or more communication interfaces, coupled to the router, to forward circuit data to a circuit endpoint. Described is a method which comprises: providing one or more digital sensing signals from a plurality of sensors; receiving the one or more digital sensing signals; generating packets of data using the one or more digital sensing signals; and providing the packets of data to one or more destinations.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: June 26, 2018
    Assignee: Intel Corporation
    Inventors: Roger K. Cheng, Stefan Rusu, Aaron Martin
  • Publication number: 20160087918
    Abstract: Described is an apparatus which comprises: logic to convert output of at least one sensor to a digital sensing signal; a router coupled to the sensor, the router to receive the digital sensing signal and to map into circuit data; and one or more communication interfaces, coupled to the router, to forward circuit data to a circuit endpoint. Described is a method which comprises: providing one or more digital sensing signals from a plurality of sensors; receiving the one or more digital sensing signals; generating packets of data using the one or more digital sensing signals; and providing the packets of data to one or more destinations.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 24, 2016
    Inventors: Roger K. Cheng, Stefan Rusu, Aaron Martin
  • Patent number: 7692457
    Abstract: A method and device are disclosed. In one embodiment the method includes driving a first clock domain reference signal on a first clock tree and driving a second clock domain reference signal on a second clock tree. The first tree routes the first signal from a PLL to a first clock domain drop off circuit and the second tree routes the second signal from the PLL to a second clock domain drop off circuit. A jitter produced from the second tree is less than a jitter produced from the first tree. The method continues by detecting any phase misalignment between the first signal and the second signal. The method also causes the first signal to be delayed so that it aligns with the second signal.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: April 6, 2010
    Assignee: Intel Corporation
    Inventors: Hing Y. To, Roger K. Cheng
  • Publication number: 20090322398
    Abstract: A method and device are disclosed. In one embodiment the method includes driving a first clock domain reference signal on a first clock tree and driving a second clock domain reference signal on a second clock tree. The first tree routes the first signal from a PLL to a first clock domain drop off circuit and the second tree routes the second signal from the PLL to a second clock domain drop off circuit. A jitter produced from the second tree is less than a jitter produced from the first tree. The method continues by detecting any phase misalignment between the first signal and the second signal. The method also causes the first signal to be delayed so that it aligns with the second signal.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: Hing Y. To, Roger K. Cheng
  • Patent number: 7602859
    Abstract: An embodiment of the present invention is a technique to calibrate an integrating receiver. A delay calibration circuit calibrates an adjusting code of a chain of delay elements and positioning of at least an integrating strobe used to define an integration window for the integrating receiver. An integrating receiver pulse generator generates an IR pulse from the at least integrating strobe. A calibration controller controls calibrating the adjusting code and the positioning of the at least integrating strobe.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: October 13, 2009
    Assignee: Intel Corporation
    Inventors: Roger K. Cheng, Harishankar Sridharan, Navneet Dour, Hing Y. To
  • Patent number: 7403034
    Abstract: Embodiments include an on die termination circuit. The on die termination circuit may be programmable. The on die termination circuit may be programmed to compensate for environmental conditions and the physical characteristics of the device. The programmed on die termination circuit allows for faster transfer rates over communication lines by reducing the time needed to recover from signal reflection and similar issues.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: July 22, 2008
    Assignee: Intel Corporation
    Inventors: Navneet Dour, Roger K. Cheng
  • Patent number: 7020818
    Abstract: Embodiments include an on die termination circuit. The on die termination circuit may be programmable. The on die termination circuit may be programmed to compensate for environmental conditions and the physical characteristics of the device. The programmed on die termination circuit allows for faster transfer rates over communication lines by reducing the time needed to recover from signal reflection and similar issues.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: March 28, 2006
    Assignee: Intel Corporation
    Inventors: Navneet Dour, Roger K. Cheng