Patents by Inventor Don Li
Don Li 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: 11993904Abstract: An automatic moving snow removal device including a moving module, driving a snow blower to move; a working module, including a working motor and a snow throwing mechanism driven by the working motor, the snow throwing mechanism is driven by the working motor to collect accumulated snow and inclusions on the ground and throw out of the snow throwing mechanism; and a control module, configured to control a rotary speed of the working motor to cause a speed when the inclusions depart from the snow throwing mechanism is not higher than 41 m/s.Type: GrantFiled: May 27, 2022Date of Patent: May 28, 2024Assignee: Positec Power Tools (Suzhou) Co., Ltd.Inventors: Don Zhendong Gao, Ka Tat Kelvin Wong, Shiping Jiao, Xiahong Zha, Fengli Zhao, Xianfeng Li
-
Patent number: 8728309Abstract: In a system and method for feature alignment in chromatographic systems, the system runs a first sample through a first separation column. The system determines a first set of features for the first sample run. The system runs a second sample through a second separation column and detects a second set of features for the second sample run. The system estimates a systematic shift in features between the first sample run through the first separation column and the second sample run through the second separation column. The system adjusts the second set of features detected for the second sample run through the second separation column based on the estimated systematic shift to obtain a third set of adjusted features.Type: GrantFiled: November 6, 2009Date of Patent: May 20, 2014Assignee: Agilent Technologies, Inc.Inventor: Xiangdong Don Li
-
Patent number: 8310939Abstract: A method for configuring operation, administration and maintenance (OAM) properties, a system for configuring OAM properties, and a node device are provided. The method includes: delivering a message carrying OAM property configuration indicating information; and flowing through a plurality of nodes to be configured in the process of delivering the message, and configuring, by each of the nodes to be configured, an OAM property of the present node according to the OAM property configuration indicating information in the message flowing through the present node.Type: GrantFiled: January 20, 2010Date of Patent: November 13, 2012Assignee: Huawei Technologies Co., Ltd.Inventors: Hao Long, Jianhua Gao, Don Li, Jixiong Dong
-
Patent number: 8237108Abstract: The present invention provides, inter alia, methods of analyzing mass spectral data based on charge states of analyte ions. In some embodiments, the methods can be used for differential profiling of samples, such as comparing a sample comprising a given compound and a sample comprising metabolites of the same compound. The methods can also be used to identify and isolate biomarkers. Systems for performing the methods, as well as computer-readable media for performing the methods, are also described.Type: GrantFiled: February 4, 2011Date of Patent: August 7, 2012Assignee: Agilent Technologies, Inc.Inventors: David M. Horn, Xiangdong Don Li
-
Publication number: 20120108448Abstract: Systems and method for curation of mass spectral libraries. In general, the systems and methods provided herein (a) obtain an experimentally derived mass spectrum of a compound of interest; (b) identify a peak in the mass spectrum that represent an experimental m/z value for an ion fragment of the compound of interest; (c) remove from the mass spectrum any peak that does not correspond to the compound of interest; and (d) replace the experimental m/z value for the peak identified in step (b) with a calculated theoretical m/z value for the ion fragment.Type: ApplicationFiled: November 3, 2010Publication date: May 3, 2012Inventors: Frank E. Kuhlmann, Heloise Logan, Steven M. Fischer, Xiangdong Don Li
-
Publication number: 20110198491Abstract: The present invention provides, inter alia, methods of analyzing mass spectral data based on charge states of analyte ions. In some embodiments, the methods can be used for differential profiling of samples, such as comparing a sample comprising a given compound and a sample comprising metabolites of the same compound. The methods can also be used to identify and isolate biomarkers. Systems for performing the methods, as well as computer-readable media for performing the methods, are also described.Type: ApplicationFiled: February 4, 2011Publication date: August 18, 2011Inventors: David M. Horn, Xiangdong Don Li
-
Patent number: 7983230Abstract: A method for controlling transmit power of a node in wireless network, such as, e.g., an ad-hoc wireless network operating in accordance with a carrier sense multiple access (CSMA) protocol and where asymmetrical radio links may exist. During a request to send (RTS) and clear to send (CTS) exchange between a first node and a second node, both a request to send (RTS) packet and a probing request to send (PrRTS) packet are transmitted from the first node to the second node. The transmit power and data rate of the PrRTS packet may be different from the transmit power and data rate of the RTS packet. In response, the second node returns a CTS packet that includes a signal to noise ratio (SNR) for both the RTS packet and the PrRTS packet. A correction factor for data transmit power is then computed based in part on both the SNR for the RTS and the SNR for the PrRTS, and a data packet is thereafter transmitted at a power level that has been modified in accordance with the correction factor.Type: GrantFiled: July 11, 2007Date of Patent: July 19, 2011Assignee: ITT Manufacturing Enterprises, Inc.Inventors: Don Li, Kristina Carlin
-
Patent number: 7910877Abstract: The present invention provides, inter alia, methods of analyzing mass spectral data based on charge states of analyte ions. In some embodiments, the methods can be used for differential profiling of samples, such as comparing a sample comprising a given compound and a sample comprising metabolites of the same compound. The methods can also be used to identify and isolate biomarkers. Systems for performing the methods, as well as computer-readable media for performing the methods, are also described.Type: GrantFiled: October 31, 2008Date of Patent: March 22, 2011Assignee: Agilent Technologies, Inc.Inventors: David M Horn, Xiangdong Don Li
-
Publication number: 20100118708Abstract: A method for configuring operation, administration and maintenance (OAM) properties, a system for configuring OAM properties, and a node device are provided. The method includes: delivering a message carrying OAM property configuration indicating information; and flowing through a plurality of nodes to be configured in the process of delivering the message, and configuring, by each of the nodes to be configured, an OAM property of the present node according to the OAM property configuration indicating information in the message flowing through the present node.Type: ApplicationFiled: January 20, 2010Publication date: May 13, 2010Inventors: Hao LONG, Jianhua Gao, Don Li, Jixiong Dong
-
Publication number: 20100108876Abstract: The present invention provides, inter alia, methods of analyzing mass spectral data based on charge states of analyte ions. In some embodiments, the methods can be used for differential profiling of samples, such as comparing a sample comprising a given compound and a sample comprising metabolites of the same compound. The methods can also be used to identify and isolate biomarkers. Systems for performing the methods, as well as computer-readable media for performing the methods, are also described.Type: ApplicationFiled: October 31, 2008Publication date: May 6, 2010Inventors: David M. Horn, Xiangdong Don Li
-
Publication number: 20100057377Abstract: In a system and method for feature alignment in chromatographic systems, the system runs a first sample through a first separation column. The system determines a first set of features for the first sample run. The system runs a second sample through a second separation column and detects a second set of features for the second sample run. The system estimates a systematic shift in features between the first sample run through the first separation column and the second sample run through the second separation column. The system adjusts the second set of features detected for the second sample run through the second separation column based on the estimated systematic shift to obtain a third set of adjusted features.Type: ApplicationFiled: November 6, 2009Publication date: March 4, 2010Inventor: Xiangdong Don Li
-
Patent number: 7653496Abstract: The present invention provides, inter alia, methods of analyzing mass spectral data. In some embodiments, the methods can be used for differential profiling of samples, such as comparing a sample comprising a compound and a sample comprising metabolites of the same compound. The methods can also be used to identify and isolate biomarkers. Systems for performing the methods, as well as computer-readable media for performing the methods, are also described.Type: GrantFiled: February 2, 2007Date of Patent: January 26, 2010Assignee: Agilent Technologies, Inc.Inventor: Xiangdong Don Li
-
Patent number: 7635433Abstract: In a system and method for feature alignment in chromatographic systems, the system runs a first sample through a first separation column. The system determines a first set of features for the first sample run. The system runs a second sample through a second separation column and detects a second set of features for the second sample run. The system estimates a systematic shift in features between the first sample run through the first separation column and the second sample run through the second separation column. The system adjusts the second set of features detected for the second sample run through the second separation column based on the estimated systematic shift to obtain a third set of adjusted features.Type: GrantFiled: August 26, 2005Date of Patent: December 22, 2009Assignee: Agilent Technologies, Inc.Inventor: Xiangdong Don Li
-
Patent number: 7453961Abstract: A technique is described for determining the timing of a received signal that includes one or more time-delayed versions of a reference signal traveling over respective different signal paths. The technique includes correlating the received signal with the reference signal to produce a correlated signal; determining whether the correlated signal includes a signal peak that corresponds to the direct path of the received signal; and iterative repeating these operations until a signal peak is determined to correspond to the direct path of the received signal. In each successive iteration, the reference signal corresponding to at least the greatest signal peak in the correlated signal is regenerated, and contributions from each regenerated reference signal are removed from the received signal prior to correlating the received signal in the next iteration.Type: GrantFiled: January 11, 2005Date of Patent: November 18, 2008Assignee: ITT Manufacturing Enterprises, Inc.Inventors: Don Li, Dennis D McCrady
-
Publication number: 20070176088Abstract: The present invention provides, inter alia, methods of analyzing mass spectral data. In some embodiments, the methods can be used for differential profiling of samples, such as comparing a sample comprising a compound and a sample comprising metabolites of the same compound. The methods can also be used to identify and isolate biomarkers. Systems for performing the methods, as well as computer-readable media for performing the methods, are also described.Type: ApplicationFiled: February 2, 2007Publication date: August 2, 2007Inventor: Xiangdong Don Li
-
Publication number: 20070045190Abstract: In a system and method for feature alignment in chromatographic systems, the system runs a first sample through a first separation column. The system determines a first set of features for the first sample run. The system runs a second sample through a second separation column and detects a second set of features for the second sample run. The system estimates a systematic shift in features between the first sample run through the first separation column and the second sample run through the second separation column. The system adjusts the second set of features detected for the second sample run through the second separation column based on the estimated systematic shift to obtain a third set of adjusted features.Type: ApplicationFiled: August 26, 2005Publication date: March 1, 2007Inventor: Xiangdong Don Li
-
Patent number: 6993065Abstract: A multi-channel spread-spectrum system separates a data stream, for example from a convolutional encoder and an interleaver, into sub-channel data-sequence signals. For each sub-channel data-sequence signal, m bits are translated to one code of a unique set of orthogonal chip-sequence signals. The other k bits of the same sub-channel data-sequence signal are translated to a distinct phasor. Each phasor is used to modulate the respective chip-sequence signal. A complex-signal combiner combines the real and imaginary components of all the phase-modulated chip-sequence signals into in-phase (I) and quadrature (Q) spread-spectrum multi-channel signals, which are spread by a cell-site specific signature-sequence. The receiver decorrelates the received spread-spectrum signal, preferably with a bank of matched filter (MF) joint-detectors, to recover the bits from all the spread-spectrum sub-channel signals for remultiplexing into the transmitted data stream.Type: GrantFiled: October 5, 2001Date of Patent: January 31, 2006Assignee: Golden Bridge Technology Inc.Inventors: Don Li, Gang Yang
-
Publication number: 20050254467Abstract: A novel power-controlled random-access method allows a mobile station to gain fast access to the base station. At the mobile station, a composite power control command is devised after an initial access attempt. The determination of the composite command uses an open-loop power-control symbol and a closed-loop power-control symbol, to decide the action of the mobile station upon transmission of its next random-access signal. In the preferred embodiment, the composite power control command can specify different levels of increase or decrease in transmission power, and the composite power control command can specify a back-off by the mobile station. This composite power-control mechanism can help resolve collision between mobile stations accessing the same random access sub-channel and therefore maintain a low-delay in the random-access process and a high-utilization on the access-channel resource.Type: ApplicationFiled: July 22, 2005Publication date: November 17, 2005Applicant: GOLDEN BRIDGE TECHNOLOGY, INC.Inventors: Don Li, Gang Yang
-
Patent number: 6937641Abstract: A novel power-controlled random-access method allows a mobile station to gain fast access to the base station. At the mobile station, a composite power control command is devised after an initial access attempt. The determination of the composite command uses an open-loop power-control symbol and a closed-loop power-control symbol, to decide the action of the mobile station upon transmission of its next random-access signal. In the preferred embodiment, the composite power control command can specify different levels of increase or decrease in transmission power, and the composite power control command can specify a back-off by the mobile station. This composite power-control mechanism can help resolve collision between mobile stations accessing the same random access sub-channel and therefore maintain a low-delay in the random-access process and a high-utilization on the access-channel resource.Type: GrantFiled: February 27, 2002Date of Patent: August 30, 2005Assignee: Golden Bridge Technology, Inc.Inventors: Don Li, Gang Yang
-
Patent number: 6843597Abstract: In a burst-mode, high-speed spread-spectrum communications system, faster convergence of a receiver's automatic gain control (AGC) circuit reduces the time required to bring a received signal within the operating range of an operation amplifier and other radio-frequency and digital sections of the receiving system. A gain control circuit includes a coarse-gain feedback loop and a fine-gain feedback loop to improve convergence speed and at the same time maintain the stability of the AGC circuit. The coarse-gain feedback loop quickly brings the received signal, using a large gain signal, to the desired operating range. The fine-gain feedback loop uses a smaller gain signal to gradually smooth the received signal to avoid saturation on the A/D converters.Type: GrantFiled: May 15, 2001Date of Patent: January 18, 2005Assignee: Golden Bridge Technology Inc.Inventors: Don Li, Gang Yang