Patents by Inventor Hiok-Tiaq Ng
Hiok-Tiaq Ng 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: 7786816Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: GrantFiled: July 28, 2008Date of Patent: August 31, 2010Assignee: Rambus Inc.Inventors: William J. Dally, Ramin Farjad-Rad, John W. Poulton, Thomas H. Greer, III, Hiok-Tiaq Ng, Teva J. Stone
-
Patent number: 7688925Abstract: An IO method and system for bit-deskewing are described. Embodiment includes a computer system with multiple components that transfer data among them. In one embodiment, a system component receives a forward strobe signal and multiple data bit signals from a transmitting component. The receiving component includes a forward strobe clock recovery circuit configurable to align a forward strobe sampling clock so as to improve sampling accuracy. The receiving component further includes at least one data bit clock recovery circuit configurable to align a data bit sampling clock so as to improve sampling accuracy, and to receive a signal from the forward strobe clock recovery circuit that causes the data bit sampling clock to track the forward strobe sampling clock during system operation.Type: GrantFiled: August 1, 2005Date of Patent: March 30, 2010Assignee: ATI Technologies, Inc.Inventors: Edward Lee, Arvind Bomdica, Lin Chen, Claude Gauthier, Sam Huynh, Hiok-Tiaq Ng, John Ling, Jennifer Ho, Siji Menokki Kandiyil, Gin Yee, Joseph Macri
-
Publication number: 20090015340Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: ApplicationFiled: July 28, 2008Publication date: January 15, 2009Applicant: Rambus Inc.Inventors: William J. Dally, Ramin Farjad-Rad, John W. Poulton, Thomas H. Greer, III, Hiok-Tiaq Ng, Teva J. Stone
-
Patent number: 7414489Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: GrantFiled: May 25, 2006Date of Patent: August 19, 2008Assignee: Rambus Inc.Inventors: William J. Dally, Ramin Farjad-Rad, John W. Poulton, Thomas H. Greer, III, Hiok-Tiaq Ng, Teva J. Stone
-
Publication number: 20070036020Abstract: An IO method and system for bit-deskewing are described. Embodiment includes a computer system with multiple components that transfer data among them. In one embodiment, a system component receives a forward strobe signal and multiple data bit signals from a transmitting component. The receiving component includes a forward strobe clock recovery circuit configurable to align a forward strobe sampling clock so as to improve sampling accuracy. The receiving component further includes at least one data bit clock recovery circuit configurable to align a data bit sampling clock so as to improve sampling accuracy, and to receive a signal from the forward strobe clock recovery circuit that causes the data bit sampling clock to track the forward strobe sampling clock during system operation.Type: ApplicationFiled: August 1, 2005Publication date: February 15, 2007Inventors: Edward Lee, Arvind Bomdica, Lin Chen, Claude Gauthier, Sam Huynh, Hiok-Tiaq Ng, John Ling, Jennifer Ho, Siji M.K., Gin Yee, Joseph Macri
-
Publication number: 20060214742Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: ApplicationFiled: May 25, 2006Publication date: September 28, 2006Inventors: William Dally, Ramin Farjad-Rad, John Poulton, Thomas Greer, Hiok-Tiaq Ng, Teva Stone
-
Patent number: 7078979Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: GrantFiled: February 11, 2005Date of Patent: July 18, 2006Assignee: Rambus Inc.Inventors: William J. Dally, Ramin Farjad-Rad, John W. Poulton, Thomas H. Greer, III, Hiok-Tiaq Ng, Teva J. Stone
-
Publication number: 20050231291Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: ApplicationFiled: February 11, 2005Publication date: October 20, 2005Applicant: Rambus Inc.Inventors: William Dally, Ramin Farjad-Rad, John Poulton, Thomas Greer, Hiok-Tiaq Ng, Teva Stone
-
Patent number: 6861916Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: GrantFiled: July 9, 2003Date of Patent: March 1, 2005Assignee: Rambus Inc.Inventors: William J. Dally, Ramin Farjad-Rad, John W. Poulton, Thomas H. Greer, III, Hiok-Tiaq Ng, Teva J. Stone
-
Publication number: 20040012453Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: ApplicationFiled: July 9, 2003Publication date: January 22, 2004Applicant: Velio Communications, Inc.Inventors: William J. Dally, Ramin Farjad-Rad, John W. Poulton, Thomas H. Greer, Hiok-Tiaq Ng, Teva J. Stone
-
Patent number: 6617936Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: GrantFiled: June 22, 2001Date of Patent: September 9, 2003Assignee: Velio Communications, Inc.Inventors: William J. Dally, Ramin Farjad-Rad, John W. Poulton, Thomas H. Greer, III, Hiok-Tiaq Ng, Teva J. Stone
-
Publication number: 20020113660Abstract: An oscillating signal in an oscillator is caused to phase shift toward the phase of an input signal coupled to the oscillating signal. The resonant frequency of the oscillator is about equal to an integer multiple of the frequency of the input signal. The input signal may be generated in a pulse generator to have an input pulse duration less than or equal to that of the oscillating signal. The oscillator circuit may be used as a filter to filter pulse width variations or to filter jitter from a reference clock. The oscillator circuit may also serve as a buffer by amplifying the input signal. Phase interpolation can be obtained by coupling at least one input signal with at least one oscillating signal.Type: ApplicationFiled: June 22, 2001Publication date: August 22, 2002Applicant: Velio Communications, IncInventors: William J. Dally, Ramin Farjad-Rad, John W. Poulton, Thomas H. Greer, Hiok-Tiaq Ng, Teva J. Stone