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).
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Patent number: 11023244Abstract: 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: GrantFiled: September 25, 2017Date of Patent: June 1, 2021Assignee: Intel CorporationInventors: Ee Loon Teoh, Eng Hun Ooi, Roger K. Cheng
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Patent number: 10923164Abstract: 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: GrantFiled: September 29, 2018Date of Patent: February 16, 2021Assignee: Intel CorporationInventors: 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
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Patent number: 10672438Abstract: 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: GrantFiled: September 29, 2018Date of Patent: June 2, 2020Assignee: Intel CorporationInventors: Mohammed G. Mostofa, Roger K. Cheng, Aaron Martin, Christopher Mozak, Pavan Kumar Kappagantula, Hsien-Pao Yang
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Publication number: 20200105319Abstract: 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: ApplicationFiled: September 29, 2018Publication date: April 2, 2020Applicant: Intel CorporationInventors: Mohammed G. Mostofa, Roger K. Cheng, Aaron Martin, Christopher Mozak, Pavan Kumar Kappagantula, Hsien-Pao Yang
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Publication number: 20200105317Abstract: 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: ApplicationFiled: September 29, 2018Publication date: April 2, 2020Applicant: Intel CorporationInventors: 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
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Publication number: 20190095215Abstract: 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: ApplicationFiled: September 25, 2017Publication date: March 28, 2019Inventors: Ee Loon Teoh, Eng Hun Ooi, Roger K. Cheng
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Patent number: 10007749Abstract: 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: GrantFiled: September 23, 2014Date of Patent: June 26, 2018Assignee: Intel CorporationInventors: Roger K. Cheng, Stefan Rusu, Aaron Martin
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Publication number: 20160087918Abstract: 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: ApplicationFiled: September 23, 2014Publication date: March 24, 2016Inventors: Roger K. Cheng, Stefan Rusu, Aaron Martin
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Patent number: 7692457Abstract: 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: GrantFiled: June 30, 2008Date of Patent: April 6, 2010Assignee: Intel CorporationInventors: Hing Y. To, Roger K. Cheng
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Publication number: 20090322398Abstract: 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: ApplicationFiled: June 30, 2008Publication date: December 31, 2009Inventors: Hing Y. To, Roger K. Cheng
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Patent number: 7602859Abstract: 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: GrantFiled: April 28, 2005Date of Patent: October 13, 2009Assignee: Intel CorporationInventors: Roger K. Cheng, Harishankar Sridharan, Navneet Dour, Hing Y. To
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Patent number: 7403034Abstract: 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: GrantFiled: January 19, 2006Date of Patent: July 22, 2008Assignee: Intel CorporationInventors: Navneet Dour, Roger K. Cheng
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Patent number: 7020818Abstract: 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: GrantFiled: March 8, 2004Date of Patent: March 28, 2006Assignee: Intel CorporationInventors: Navneet Dour, Roger K. Cheng