Patents by Inventor Qu Jin
Qu Jin 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: 20230393184Abstract: A device for measuring phase noise, including a sampler to sample an input signal, an input filter to receive an input from the sampler, a noise generator to generate a noise signal, a combiner to receive input from, respectively, the input filter and the noise generator, the combiner to output an integrated noise output measurement. The input filter may operate in either the time domain or the frequency domain. The noise generate may generate a noise signal based on the sampler output, or may generate a noise estimate value based on the sampler output.Type: ApplicationFiled: September 26, 2022Publication date: December 7, 2023Applicant: Microchip Technology IncorporatedInventors: Gary Qu Jin, Chris du Quesnay, Ehsan Rahimi
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Publication number: 20220301856Abstract: In some embodiments, a method for semiconductor processing preclean includes removing an oxide layer from a substrate using anhydrous hydrogen fluoride in combination with water vapor. A system for the preclean may be configured to separate the anhydrous hydrogen fluoride and the water vapor until they are delivered to a common volume near the substrate. Corrosion within components of the system may be limited by purification of anhydrous hydrogen fluoride, passivation of components, changing component materials, and heating components. Passivation may be achieved by filling a gas delivery component with anhydrous hydrogen fluoride and allowing the anhydrous hydrogen fluoride to remain in the gas delivery component to form a passivation layer. Consistent water vapor delivery may be achieved in part by heating components using heaters.Type: ApplicationFiled: March 17, 2022Publication date: September 22, 2022Inventors: Chuang Wei, Aditya Chaudhury, Prahlad Kulkarni, Xing Lin, Xiaoda Sun, Woo Jung Shin, Bubesh Babu Jotheeswaran, Fei Wang, Qu Jin, Aditya Walimbe, Rajeev Reddy Kosireddy, Yen Chun Fu, Amin Azimi
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Publication number: 20220020599Abstract: Exemplary processing methods may include depositing a boron-containing material or a silicon-and-boron-containing material on a substrate disposed within a processing region of a semiconductor processing chamber. The methods may include etching portions of the boron-containing material or the silicon-and-boron-containing material with a chlorine-containing precursor to form one or more features in the substrate. The methods may also include removing remaining portions of the boron-containing material or the silicon-and-boron-containing material from the substrate with a fluorine-containing precursor.Type: ApplicationFiled: July 18, 2021Publication date: January 20, 2022Applicant: Applied Materials, Inc.Inventors: Takehito Koshizawa, Karthik Janakiraman, Rui Cheng, Krishna Nittala, Menghui Li, Ming-Yuan Chuang, Susumu Shinohara, Juan Guo, Xiawan Yang, Russell Chin Yee Teo, Zihui Li, Chia-Ling Kao, Qu Jin, Anchuan Wang
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Patent number: 8135148Abstract: An automatic gain control unit controls the gain applied to an input signal produced by a microphone subject to ambient noise. The automatic gain control circuit continually monitors the signal level of said input signal. A first gain control circuit decreases the gain applied to the input signal in increments of a first size when the input signal exceeds a first predetermined level. A second gain control circuit increases the gain applied to said input signal in increments of a smaller size when the input signal falls below a second predetermined level and in response to the presence of a speech present signal. The second predetermined level is less than said first predetermined level. In one embodiment, the first gain control circuit controls the analog gain of a codec and the second gain control circuit controls the digital gain of the codec.Type: GrantFiled: April 26, 2007Date of Patent: March 13, 2012Assignee: Microsemi Semiconductor Corp.Inventors: Gary Qu Jin, Yonghong Huang
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Patent number: 7908138Abstract: To reduce noise in an input signal that may contain speech, first an estimate of the noise level in the signal is obtained. The level of the input signal is then compared with the noise level estimate signal to determine whether speech is dominant. Less aggressive noise reduction is applied to the input signal when speech is dominant than when only noise is present.Type: GrantFiled: August 9, 2006Date of Patent: March 15, 2011Assignee: Zarlink Semiconductor Inc.Inventors: Gary Qu Jin, Dean Morgan
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Patent number: 7327793Abstract: In a method of effecting peak reduction in a DMT signal, a predetermined signature waveform is first produced. This is then subtracted from the DMT signal in the region of a signal peak whenever the DMT signal is above a predetermined maximum level.Type: GrantFiled: March 1, 2002Date of Patent: February 5, 2008Assignee: RIM SemiconductorInventor: Gary Qu Jin
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Publication number: 20070262819Abstract: An automatic gain control unit controls the gain applied to an input signal produced by a microphone subject to ambient noise. The automatic gain control circuit continually monitors the signal level of said input signal. A first gain control circuit decreases the gain applied to the input signal in increments of a first size when the input signal exceeds a first predetermined level. A second gain control circuit increases the gain applied to said input signal in increments of a smaller size when the input signal falls below a second predetermined level and in response to the presence of a speech present signal. The second predetermined level is less than said first predetermined level. In one embodiment, the first gain control circuit controls the analog gain of a codec and the second gain control circuit controls the digital gain of the codec.Type: ApplicationFiled: April 26, 2007Publication date: November 15, 2007Applicant: ZARLINK SEMICONDUCTOR INC.Inventors: Gary Qu Jin, Yonghong Huang
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Patent number: 6999507Abstract: A method of determining cross channel interference in an Discrete Multitone (DMT) implementation of a Digital Subscriber Line (DSL) system. The cross channel interference is determined utilizing a residual impulse spectrum after implementation of a Time Equalization (TEQ) algorithm. In one application the cross channel interference value is used in a bit allocation algorithm to improve such that more bits are allocated to the channels with low interference and fewer bits are allocated to those channels having high interference. In this application the bit allocation algorithm is run twice, once before the interference measurement and once after.Type: GrantFiled: December 20, 2000Date of Patent: February 14, 2006Assignee: 1021 Technologies KKInventor: Gary Qu Jin
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Patent number: 6661895Abstract: A zero-delay structure to be used in sub-band echo cancellation systems. In telecommunications, a delay is usually introduced in sub-band decomposition and/or sub-band reconstruction. This invention will help remove this. This structure not only removes the delay but does not sacrifice the performance of the echo canceller. It is to be used in combination with any sub-band-based echo canceller or wavelet echo canceller.Type: GrantFiled: October 7, 1999Date of Patent: December 9, 2003Assignee: Zarlink Semiconductor Inc.Inventors: Qu Jin, Kon Max Wong, Qiang Wu, Philippe Wu, Gordon J. Reesor
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Publication number: 20020159550Abstract: In a method of effecting peak reduction in a DMT signal, a predetermined signature waveform is first produced. This is then subtracted from the DMT signal in the region of a signal peak whenever the DMT signal is above a predetermined maximum level.Type: ApplicationFiled: March 1, 2002Publication date: October 31, 2002Inventor: Gary Qu Jin
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Patent number: 6282286Abstract: A nonlinear processor (NLP) for selectively removing or reducing residual echo signals from an acoustic echo canceller associated with a telephony terminal is provided. Low level background noise and near end speech signals pass through the NLP structure substantially unaltered. Distortion, background noise above a preset threshold and echo signals including long duration echoes are replaced with a linear combination of previous noise data.Type: GrantFiled: August 31, 1998Date of Patent: August 28, 2001Assignee: Mitel CorporationInventors: Gordon J. Reesor, Gary Qu Jin, Thomas Qian
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Publication number: 20010005395Abstract: A method of determining cross channel interference in an Discrete Multitone (DMT) implementation of a Digital Subscriber Line (DSL) system. The cross channel interference is determined utilizing a residual impulse spectrum after implementation of a Time Equalization (TEQ) algorithm. In one application the cross channel interference value is used in a bit allocation algorithm to improve such that more bits are allocated to the channels with low interference and fewer bits are allocated to those channels having high interference. In this application the bit allocation algorithm is run twice, once before the interference measurement and once after.Type: ApplicationFiled: December 20, 2000Publication date: June 28, 2001Inventor: Gary Qu Jin
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Patent number: 5937009Abstract: An echo canceller comprising a first wavelet decomposition block for decomposing a reference signal into a plurality of reference wavelet packets; a second wavelet decomposition block for decomposing an echo signal into a plurality of echo signal packets; an adaptive filter bank for receiving and filtering the reference wavelet packets and in response generating a plurality of filtered output packets replicating the echo signal packets; a plurality of subtracters for receiving and subtracting respective ones of the filtered output packets from the echo signal packets and in response generating and applying a plurality of error signals to the adaptive filter bank for modifying the transfer function of the adaptive filter bank; and a wavelet reconstruction block for receiving and reconstructing the error signals to form a residual signal from which the echo signal has been cancelled. Optimum wavelet filters for the best echo cancellation are provided, as are two wavelet echo cancellation structures.Type: GrantFiled: January 15, 1997Date of Patent: August 10, 1999Inventors: Kon Max Wong, Qu Jin, Qiang Wu, Phillippe Wu, Gordon J. Reesor
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Patent number: 5217302Abstract: Method and apparatus for the electromagnetic dynamic plasticating of polymer materials includes a magnetic moving body which is supported both axially and radially by a magnetic levitation gap. The magnetic body is rotated in non-steady state vibration within an electromagnetic winding and cooperates with a stationary body to form a processing space for the polymer material.Type: GrantFiled: January 25, 1991Date of Patent: June 8, 1993Assignee: South China University of TechnologyInventor: Qu Jin-ping
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Patent number: D1018997Type: GrantFiled: September 27, 2021Date of Patent: March 19, 2024Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Zheng Gu, Peng Zhou, Wenbo Wang, Xiaojuan Zhu, Ling Lin, Zhao Xia Jin, Tiecheng Qu, Weiming Zhou, Yolanda Wang, Anncy Zhou