Patents by Inventor Samuel Sheng
Samuel Sheng 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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Publication number: 20240106701Abstract: Systems and methods are provided for automatically provisioning customer-specific credentials on a gateway device, Customer Premises Equipment (CPE), or the like. A method, according to one implementation, includes the step of determining when a remote gateway device is connected to a Point-to-Point Protocol over Ethernet (PPPoE) server via a network. The remote gateway device is intended to enable one or more user devices in a Local Area Network (LAN) to access the Internet via the network and PPPoE server. The method also includes the step of automatically configuring customer-specific PPPoE credentials on the remote gateway device to thereby enable the PPPoE server to authenticate the remote gateway device and grant Internet access.Type: ApplicationFiled: March 3, 2023Publication date: March 28, 2024Inventors: Yoseph Malkin, Paul White, Samuel Crockett, Seth Kaplan, Qizheng Sheng, Robert J. Miller
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Patent number: 8888684Abstract: A medical device, for example, an endoscope or catheter, includes local drug delivery capabilities for selectively delivering at least one drug in vivo. The local drug delivery may occur as the medical device is advanced through tortuous passageways of the patient's body or may occur after the medical device has reached its targeted destination. The medical device includes a drug agent, for example, carried in or on a hydrophilic or hydrogel coating disposed on the outside thereof. When the hydrogel or drug agent receives an appropriate signal, e.g., solution containing a triggering agent or triggering condition, e.g., heat or light, the hydrogel contracts or expands to squeeze out the drug from hydrogel. If electric current is provided as the signal, and the drug agent is charged, the drug agent is released by electrophoretic forces.Type: GrantFiled: March 27, 2006Date of Patent: November 18, 2014Assignee: Boston Scientific Scimed, Inc.Inventors: Lucien A. Couvillon, Jr., Michael S. Banik, Samuel Sheng-Ping Zhong
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Patent number: 8587721Abstract: A method and circuitry for processing a video signal corresponding to a source synchronous video broadcast which corresponds to a selected channel which is one of a plurality of channels of a broadcast spectrum. In one aspect, the method includes generating digitized data of the video signal, which corresponds to the source synchronous video broadcast, using a local clock signal having a frequency which is different from the frequency of the source clock of the video broadcast; generating video data using the digitized data of the video signal; generating formatted video data blocks by arranging the video data into one or more lines or frames of video data; generating temporal reference signals wherein each temporal reference signal is associated with at least one formatted video data block.Type: GrantFiled: August 4, 2010Date of Patent: November 19, 2013Assignee: Telegent Systems, Inc.Inventor: Samuel Sheng
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Patent number: 8203653Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes an amplifier to amplify an analog video signal having a desired carrier frequency, and a mixing circuit to mix the amplified analog video signal with a complex sinusoid having a frequency substantially equal to the carrier frequency.Type: GrantFiled: August 14, 2008Date of Patent: June 19, 2012Assignee: Telegent Systems, Inc.Inventors: Weijie Yun, Samuel Sheng, Dennis G. Yee
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Patent number: 8077262Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes a mixing circuit to mix an analog video signal with a sinusoid to generate a frequency-shifted analog video signal, and an offset cancellation circuit to obtain a sample of the frequency-shifted analog video signal during a first time interval and, based on the sample, generate an offset cancellation signal that, when summed with the frequency-shifted analog video signal, reduces a substantially time-invariant offset in the frequency-shifted analog video signal.Type: GrantFiled: March 6, 2008Date of Patent: December 13, 2011Assignee: Telegent Systems, Inc.Inventors: Weijie Yun, Samuel Sheng
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Patent number: 7932958Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes an amplifier to amplify an analog video signal having a desired carrier frequency, and a mixing circuit to mix the amplified analog video signal with a complex sinusoid having a frequency substantially equal to the carrier frequency.Type: GrantFiled: March 12, 2009Date of Patent: April 26, 2011Assignee: Telegent Systems, Inc.Inventors: Weijie Yun, Samuel Sheng, Dennis G. Yee
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Patent number: 7932845Abstract: A self-calibrating analog-to-digital converter (ADC). The ADC includes multiple component ADCs to generate respective digital representations of an input signal in response to respective timing signals that are offset in phase from one another, each component ADC having a gain setting that controls a magnitude of the digital representations. The ADC further includes correction circuitry to generate a plurality of fast-Fourier transforms (FFTs) that correspond to the digital representations of the input signal and to adjust the gain settings of the component ADCs and/or phase angles of the timing signals based on gain and phase errors indicated by the FFTs.Type: GrantFiled: January 21, 2010Date of Patent: April 26, 2011Assignee: Telegent Systems, Inc.Inventors: Samuel Sheng, Weijie Yun
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Patent number: 7929060Abstract: An integrated circuit device having a television signal tuner, video decoder and power control circuit. The television signal tuner selects one of a plurality of television channels, and the video decoder converts a television signal conveyed in the selected television channel into a video display signal. The power control circuit alternately enables and disables the television tuner to enable reception of a first portion of video information conveyed in the television signal and to disable reception of a second portion of the video information.Type: GrantFiled: May 2, 2005Date of Patent: April 19, 2011Assignee: Telegent Systems, Inc.Inventors: Weijie Yun, Samuel Sheng
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Publication number: 20110032364Abstract: A method and circuitry for processing a video signal corresponding to a source synchronous video broadcast which corresponds to a selected channel which is one of a plurality of channels of a broadcast spectrum. In one aspect, the method includes generating digitized data of the video signal, which corresponds to the source synchronous video broadcast, using a local clock signal having a frequency which is different from the frequency of the source clock of the video broadcast; generating video data using the digitized data of the video signal; generating formatted video data blocks by arranging the video data into one or more lines or frames of video data; generating temporal reference signals wherein each temporal reference signal is associated with at least one formatted video data block.Type: ApplicationFiled: August 4, 2010Publication date: February 10, 2011Inventor: Samuel Sheng
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Publication number: 20100275224Abstract: An interactive device/system of and method for delivery, receipt and/or decoding of and/or response to keyed or tagged video content provided in connection with one or more video broadcasts (for example, television or streaming video). Responsive thereto, the system and method may deliver and/or receive video and/or audio information. Such delivery and/or receipt of video and/or audio information may be responsive to content embedded in the broadcast but not visually observed, responsive to broadcast content that is visually observed and then parsed and correlated with a predetermined response, and responsive to a user/operator instruction, input and/or request. The interactive video receiving device may determine a video-based broadcast is an interactive video-based broadcast, wherein, the device automatically provides interaction options and or based on a response by the user/viewer to the video-based broadcast, the video receiving device transmits “interest-level” data (i.e.Type: ApplicationFiled: April 23, 2010Publication date: October 28, 2010Inventors: Samuel Sheng, David Bydeley, Gary Levy, Qing Wang
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Publication number: 20100225820Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes an amplifier to amplify an analog video signal having a desired carrier frequency, and a mixing circuit to mix the amplified analog video signal with a complex sinusoid having a frequency substantially equal to the carrier frequency.Type: ApplicationFiled: May 20, 2010Publication date: September 9, 2010Inventors: Weijie Yun, Samuel Sheng, Dennis G. Yee
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Publication number: 20100117878Abstract: A self-calibrating analog-to-digital converter (ADC). The ADC includes multiple component ADCs to generate respective digital representations of an input signal in response to respective timing signals that are offset in phase from one another, each component ADC having a gain setting that controls a magnitude of the digital representations. The ADC further includes correction circuitry to generate a plurality of fast-Fourier transforms (FFTs) that correspond to the digital representations of the input signal and to adjust the gain settings of the component ADCs and/or phase angles of the timing signals based on gain and phase errors indicated by the FFTs.Type: ApplicationFiled: January 21, 2010Publication date: May 13, 2010Inventors: Samuel Sheng, Weijie Yu
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Patent number: 7675441Abstract: A self-calibrating analog-to-digital converter (ADC). The ADC includes multiple component ADCs to generate respective digital representations of an input signal in response to respective timing signals that are offset in phase from one another, each component ADC having a gain setting that controls a magnitude of the digital representations. The ADC further includes correction circuitry to generate a plurality of fast-Fourier transforms (FFTs) that correspond to the digital representations of the input signal and to adjust the gain settings of the component ADCs and/or phase angles of the timing signals based on gain and phase errors indicated by the FFTs.Type: GrantFiled: October 12, 2007Date of Patent: March 9, 2010Assignee: Telegent Systems, Inc.Inventors: Samuel Sheng, Weijie Yun
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Publication number: 20090185079Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes an amplifier to amplify an analog video signal having a desired carrier frequency, and a mixing circuit to mix the amplified analog video signal with a complex sinusoid having a frequency substantially equal to the carrier frequency.Type: ApplicationFiled: March 12, 2009Publication date: July 23, 2009Inventors: Weijie Yun, Samuel Sheng, Dennis G. Yee
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Patent number: 7542100Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes first and second mixing circuits to generate a complex baseband signal by mixing a carrier-frequency analog video signal with respective sinusoids of a quadrature sinusoid pair; and a filtering circuit to subtract a scaled complex conjugate of the complex baseband signal from the complex baseband signal.Type: GrantFiled: May 2, 2005Date of Patent: June 2, 2009Assignee: Telegent Systems, Inc.Inventors: Dennis G. Yee, Samuel Sheng
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Patent number: 7508451Abstract: Phase noise mitigation in an analog video receiver implemented in an integrated circuit device. A phase correction value that indicates a phase offset between a synthesized sinusoid and a reference sinusoid conveyed in a horizontal retrace region of a composite video signal is periodically generated. A phase error that will accumulate during an interval between horizontal retrace regions of the composite video signal is estimated based, at least in part, on the phase correction value, and the phase of a chroma signal component of the composite video signal is adjusted based on the estimated phase error.Type: GrantFiled: September 21, 2005Date of Patent: March 24, 2009Assignee: Telegent Systems, Inc.Inventors: Samuel Sheng, Weijie Yun
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Patent number: 7505086Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes a mixing circuit to mix an analog video signal with a sinusoid to generate a frequency-shifted analog video signal, and an offset cancellation circuit to obtain a sample of the frequency-shifted analog video signal during a first time interval and, based on the sample, generate an offset cancellation signal that, when summed with the frequency-shifted analog video signal, reduces a substantially time-invariant offset in the frequency-shifted analog video signal.Type: GrantFiled: May 2, 2005Date of Patent: March 17, 2009Assignee: Telegent Systems, Inc.Inventors: Weijie Yun, Samuel Sheng
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Publication number: 20080297664Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes an amplifier to amplify an analog video signal having a desired carrier frequency, and a mixing circuit to mix the amplified analog video signal with a complex sinusoid having a frequency substantially equal to the carrier frequency.Type: ApplicationFiled: August 14, 2008Publication date: December 4, 2008Inventors: Weijie Yun, Samuel Sheng, Dennis G. Yee
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Patent number: 7453526Abstract: An analog video receiver implemented in an integrated circuit device. The analog video receiver includes an amplifier to amplify an analog video signal having a desired carrier frequency, and a mixing circuit to mix the amplified analog video signal with a complex sinusoid having a frequency substantially equal to the carrier frequency.Type: GrantFiled: May 2, 2005Date of Patent: November 18, 2008Assignee: Telegent Systems, Inc.Inventors: Weijie Yun, Samuel Sheng, Dennis G. Yee
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Publication number: 20080260044Abstract: A multichannel video receiver having an analog-to-digital converter, fast-Fourier transform circuit and inverse-Fourier transform circuit. The analog-to-digital converter circuit generates a digitized representation of a frequency band used to convey a plurality of video signals, and the fast-Fourier transform circuit generates a frequency-domain representation of the digitized representation of the frequency band. The inverse-Fourier transform circuit recovers, from the frequency-domain representation, a plurality of digitized time-domain signals that correspond to the plurality of video signals.Type: ApplicationFiled: May 20, 2008Publication date: October 23, 2008Inventors: Weijie Yun, Samuel Sheng