Patents by Inventor Tao Zeng
Tao Zeng 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: 9882298Abstract: The present invention discloses a plug-in connector, including housing, fixing terminals that are connected to the first terminal part and the second terminal part detachably inserting into the clamping grooves provided inside the first terminal part and the second terminal part; at least two power supply terminals; a signal terminal mounting part, provided with two separated rows of terminal grooves therein, wherein the terminal groove includes a plurality of terminal inserting grooves and a plurality of spacing walls that are positioned between the terminal inserting grooves to separate the terminal inserting grooves from each other, and wherein a bottom of the signal terminal mounting part between two terminal groups is provided with a strip-type groove in which conductive plastic is mounted; a pair of terminal groups, having a plurality of signal terminals and ground terminals, and wherein all of the ground terminals are electrically connected through the conductive plastic.Type: GrantFiled: October 18, 2016Date of Patent: January 30, 2018Assignee: Amphenol Commercial Products (ChengDu) Co., LTD.Inventor: Tao Zeng
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Publication number: 20170358880Abstract: The present invention discloses a plug-in connector, including housing, fixing terminals that are connected to the first terminal part and the second terminal part detachably inserting into the clamping grooves provided inside the first terminal part and the second terminal part; at least two power supply terminals; a signal terminal mounting part, provided with two separated rows of terminal grooves therein, wherein the terminal groove includes a plurality of terminal inserting grooves and a plurality of spacing walls that are positioned between the terminal inserting grooves to separate the terminal inserting grooves from each other, and wherein a bottom of the signal terminal mounting part between two terminal groups is provided with a strip-type groove in which conductive plastic is mounted; a pair of terminal groups, having a plurality of signal terminals and ground terminals, and wherein all of the ground terminals are electrically connected through the conductive plastic.Type: ApplicationFiled: October 18, 2016Publication date: December 14, 2017Applicant: Amphenol Commercial Products (ChengDu) Co., LTD.Inventor: Tao ZENG
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Publication number: 20170359080Abstract: Systems and methods are provided for digital-to-analog conversions with adaptive digital offsets. A digital offset may be determined and applied to a digital input to a digital-to-analog converter (DAC), and digital-to-analog conversions are then applied via the DAC to the digital input with the digital offset. The digital offset may be set to account for one or more conditions relating to inputs to the DAC, with the one or more conditions affecting switching characteristics of one or more of a plurality of conversion elements in the DAC. The digital offset may be determined dynamically and adaptively, such as based on the input and/or conditions relating to the input. The adjustments may be selectively applied to the digital offset for particular input conditions.Type: ApplicationFiled: June 26, 2017Publication date: December 14, 2017Inventors: Gaurav Chandra, Tao Zeng, Shantha Murthy Prem Swaroop, Jianyu Zhu
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Patent number: 9800254Abstract: Systems and methods are provided for digital-to-analog converter (DAC) with partial constant switching. A digital-to-analog converter (DAC) comprising a plurality of conversion elements may be configured to apply constant switching in only some of the conversion elements. Only conversion elements applying constant switching may incorporate circuitry for providing such the constant switching. Alternatively, each conversion element may incorporate constant switching circuitry and functionality, and the constant switching may then be turned on or off for each conversion element adaptively, such as based on input conditions.Type: GrantFiled: April 15, 2016Date of Patent: October 24, 2017Assignee: MAXLINEAR, INC.Inventors: Gaurav Chandra, Tao Zeng, Shantha Murthy Prem Swaroop, Jianyu Zhu
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Patent number: 9762256Abstract: Systems and methods are provided for digital-to-analog converters (DACs) with enhanced dynamic element matching (DEM) and calibration. DEM may be adapted based on assessment of one or more conditions that may affect the DACs or DEM functions thereof. The one or more condition may comprise amount of signal backoff. The adaption may comprise switching the DEM function (as a whole, or partially—e.g., individual DEM elements) on or off based on the assess conditions. The DACs may incorporate use of calibration. The DEM and/or the calibration may be applied to only a portion of the DAC, such as a particular segment (e.g., a middle segment comprising bits between the MSBs and the LSBs).Type: GrantFiled: April 15, 2016Date of Patent: September 12, 2017Assignee: MAXLINEAR, INC.Inventors: Gaurav Chandra, Tao Zeng, Shantha Murthy Prem Swaroop
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Patent number: 9692435Abstract: Systems and methods are provided for digital-to-analog converter (DAC) with digital offsets. A digital offset may be applied to an input of a digital-to-analog converter (DAC), and digital-to-analog conversions are then applied via the DAC to the input with the digital offset. The digital offset is set to account for one or more conditions relating to inputs to the DAC, with the one or more conditions affect switching characteristics of one or more of a plurality of conversion elements in the DAC, and where each conversion element handles a particular bit in inputs to the DAC. The digital offset may be determined dynamically and adaptively, such as based on the input and/or conditions relating to the input. Alternatively, the digital offset may be pre-determined and fixed. One or more adjustments may be selectively applied to the digital offset for particular input conditions.Type: GrantFiled: April 15, 2016Date of Patent: June 27, 2017Assignee: MAXLINEAR, INC.Inventors: Gaurav Chandra, Tao Zeng, Shantha Murthy Prem Swaroop, Jianyu Zhu
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Publication number: 20160308545Abstract: Systems and methods are provided for digital-to-analog converters (DACs) with enhanced dynamic element matching (DEM) and calibration. DEM may be adapted based on assessment of one or more conditions that may affect the DACs or DEM functions thereof. The one or more condition may comprise amount of signal backoff. The adaption may comprise switching the DEM function (as a whole, or partially—e.g., individual DEM elements) on or off based on the assess conditions. The DACs may incorporate use of calibration. The DEM and/or the calibration may be applied to only a portion of the DAC, such as a particular segment (e.g., a middle segment comprising bits between the MSBs and the LSBs).Type: ApplicationFiled: April 15, 2016Publication date: October 20, 2016Inventors: Gaurav Chandra, Tao Zeng, Shantha Murthy Prem Swaroop
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Publication number: 20160308546Abstract: Systems and methods are provided for digital-to-analog converter (DAC) with partial constant switching. A digital-to-analog converter (DAC) comprising a plurality of conversion elements may be configured to apply constant switching in only some of the conversion elements. Only conversion elements applying constant switching may incorporate circuitry for providing such the constant switching. Alternatively, each conversion element may incorporate constant switching circuitry and functionality, and the constant switching may then be turned on or off for each conversion element adaptively, such as based on input conditions.Type: ApplicationFiled: April 15, 2016Publication date: October 20, 2016Inventors: Gaurav Chandra, Tao Zeng, Shantha Murthy Prem Swaroop, Jianyu Zhu
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Publication number: 20160308547Abstract: Systems and methods are provided for digital-to-analog converter (DAC) with digital offsets. A digital offset may be applied to an input of a digital-to-analog converter (DAC), and digital-to-analog conversions are then applied via the DAC to the input with the digital offset. The digital offset is set to account for one or more conditions relating to inputs to the DAC, with the one or more conditions affect switching characteristics of one or more of a plurality of conversion elements in the DAC, and where each conversion element handles a particular bit in inputs to the DAC. The digital offset may be determined dynamically and adaptively, such as based on the input and/or conditions relating to the input. Alternatively, the digital offset may be pre-determined and fixed. One or more adjustments may be selectively applied to the digital offset for particular input conditions.Type: ApplicationFiled: April 15, 2016Publication date: October 20, 2016Inventors: Gaurav Chandra, Tao Zeng, Shantha Murthy Prem Swaroop, Jianyu Zhu
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Patent number: 8768174Abstract: A modulation device and method, and a demodulation device and method are provided. The modulation device modulates plural baseband signals to generate an optical signal, and comprises: plural modulation units for modulating plural electrical carriers with different frequencies by using the baseband signals respectively, to generate corresponding electrical modulated signals; a synthesizer for synthesizing the electrical modulated signals to generate a single electrical synthesized signal; an optical modulation unit for modulating a single optical carrier by using the electrical synthesized signal to generate the optical signal, wherein signal components corresponding to the baseband signals in the optical signal are distributed on both sides of a carrier frequency of the optical carrier at a predetermined frequency interval.Type: GrantFiled: December 21, 2011Date of Patent: July 1, 2014Assignee: Wuhan Research Institute of Posts and TelecommunicationsInventors: Tao Zeng, Qi Yang, Zhu Yang, Shaohua Yu
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Patent number: 8693895Abstract: A signal transmission and reception device and method are provided. The transmission method comprises generating multiple optical carriers from a basic optical carrier; modulating optical carriers, except for a predetermined optical carrier, in the optical carriers by using multiple data signals respectively, to generate multiple optical modulated signals; and synthesizing the multiple optical modulated signals and the predetermined optical carrier into a single optical signal, and transmitting the signal.Type: GrantFiled: November 24, 2011Date of Patent: April 8, 2014Assignee: Wuhan Research Institute of Posts and TelecommunicationsInventors: Qi Yang, Tao Zeng, Xiaoyin Zhang, Zhu Yang, Shaohua Yu
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Patent number: 8686850Abstract: The disclosure relates to detecting seismic movements and providing at least one alarm notification based on the detected seismic movement. Particularly, a sensor device, which may be positioned in a subterranean part of a structure, may detect a seismic movement. The sensor device may make a determination as to whether the received seismic movement is greater than a predetermined threshold. If the seismic movement is greater than a predetermined threshold, the sensor device may transmit an alarm notification to one or more alarm devices, which may be located within the structure, indicating the seismic movement. The alarm device(s) may provide an alarm, notifying people in the structure of the seismic movement. This may provide an opportunity for the people to leave the structure before the seismic movement reaches the structure.Type: GrantFiled: February 17, 2010Date of Patent: April 1, 2014Assignee: Empire Technology Development LLCInventors: Tao Zeng, Bing Zhang, Huayin Zheng, Jianzhong Deng
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Patent number: 8509115Abstract: A multicast control method in an Ethernet passive optical network, the method includes steps: (A) configuring different id for user-end devices and their user ports; labeling users on office-end devices by using id for user-end devices and their user ports; setting up user's multicast authorization table; (B) based on the multicast authorization table, office-end devices control user's multicast authority; based on the controlled result, setting up multicast filtration tables and user filtration tables for user-end devices; based on the multicast filtration tables and user filtration tables, user-end devices filter multicast data, and forward them to users having multicast authority. The method controls multicast for different user ports on the same user-end device so as to raise security of multicast.Type: GrantFiled: December 24, 2007Date of Patent: August 13, 2013Assignee: ZTE CorporationInventors: Tao Zeng, Yunpeng Xie, Deqiang Wang
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Publication number: 20130121706Abstract: A signal transmission and reception device and method are provided. The transmission method comprises generating multiple optical carriers from a basic optical carrier; modulating optical carriers, except for a predetermined optical carrier, in the optical carriers by using multiple data signals respectively, to generate multiple optical modulated signals; and synthesizing the multiple optical modulated signals and the predetermined optical carrier into a single optical signal, and transmitting the signal.Type: ApplicationFiled: November 24, 2011Publication date: May 16, 2013Applicant: Wuhan Research Institute of Posts and TelecommunicationsInventors: Qi YANG, Tao ZENG, Xiaoyin ZHANG, Zhu YANG, Shaohua YU
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Publication number: 20130107341Abstract: A modulation device and method, and a demodulation device and method are provided. The modulation device modulates plural baseband signals to generate an optical signal, and comprises: plural modulation units for modulating plural electrical carriers with different frequencies by using the baseband signals respectively, to generate corresponding electrical modulated signals; a synthesizer for synthesizing the electrical modulated signals to generate a single electrical synthesized signal; an optical modulation unit for modulating a single optical carrier by using the electrical synthesized signal to generate the optical signal, wherein signal components corresponding to the baseband signals in the optical signal are distributed on both sides of a carrier frequency of the optical carrier at a predetermined frequency interval.Type: ApplicationFiled: December 21, 2011Publication date: May 2, 2013Inventors: Tao Zeng, Qi Yang, Zhu Yang, Shaohua Yu
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Patent number: 8306283Abstract: A focus enhancing method for a portrait in a digital image is applied to an electronic device capable of receiving or reading a digital image and executing a focus enhancing process with respect to a portrait in the digital image, wherein the focus enhancing process includes a foreground definition procedure for defining a head region and a body region of the portrait as a foreground of the digital image, a foreground and background segmentation procedure for cutting away an image other than the foreground from the digital image and defining the result as a background of the digital image, and a foreground and background blending procedure for blurring the background, feathering a transition region coupled to the foreground and the background, and blending the foreground, the transition region and the background to form a new digital image with a prominent portrait.Type: GrantFiled: April 21, 2009Date of Patent: November 6, 2012Assignee: Arcsoft (Hangzhou) Multimedia Technology Co., Ltd.Inventors: Hua-Qi Zhang, Min Cheng, Guang-Yan Liu, Fan-Tao Zeng, Jin Wang
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Publication number: 20110037588Abstract: The disclosure relates to detecting seismic movements and providing at least one alarm notification based on the detected seismic movement. Particularly, a sensor device, which may be positioned in a subterranean part of a structure, may detect a seismic movement. The sensor device may make a determination as to whether the received seismic movement is greater than a predetermined threshold. If the seismic movement is greater than a predetermined threshold, the sensor device may transmit an alarm notification to one or more alarm devices, which may be located within the structure, indicating the seismic movement. The alarm device(s) may provide an alarm, notifying people in the structure of the seismic movement. This may provide an opportunity for the people to leave the structure before the seismic movement reaches the structure.Type: ApplicationFiled: February 17, 2010Publication date: February 17, 2011Inventors: Tao ZENG, Bing Zhang, Huayin Zheng, Jiauzhang Deng
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Publication number: 20100266207Abstract: A focus enhancing method for a portrait in a digital image is applied to an electronic device capable of receiving or reading a digital image and executing a focus enhancing process with respect to a portrait in the digital image, wherein the focus enhancing process includes a foreground definition procedure for defining a head region and a body region of the portrait as a foreground of the digital image, a foreground and background segmentation procedure for cutting away an image other than the foreground from the digital image and defining the result as a background of the digital image, and a foreground and background blending procedure for blurring the background, feathering a transition region coupled to the foreground and the background, and blending the foreground, the transition region and the background to form a new digital image with a prominent portrait.Type: ApplicationFiled: April 21, 2009Publication date: October 21, 2010Applicant: ArcSoft ( Hangzhou) Multimedia Technology Co., LtdInventors: Hua-Qi Zhang, Min Cheng, Guang-Yan Liu, Fan-Tao Zeng, Jin Wang
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Publication number: 20100111529Abstract: A multicast control method in an Ethernet passive optical network, the method includes steps: (A) configuring different id for user-end devices and their user ports; labeling users on office-end devices by using id for user-end devices and their user ports; setting up user's multicast authorization table; (B) based on the multicast authorization table, office-end devices control user's multicast authority; based on the controlled result, setting up multicast filtration tables and user filtration tables for user-end devices; based on the multicast filtration tables and user filtration tables, user-end devices filter multicast data, and forward them to users having multicast authority. The method controls multicast for different user ports on the same user-end device so as to raise security of multicast.Type: ApplicationFiled: December 24, 2007Publication date: May 6, 2010Applicant: ZTE CORPORATIONInventors: Tao Zeng, Yunpeng Xie, Deqiang Wang
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Publication number: 20090027359Abstract: A stylus includes a suction cup configured for being attached to a user' finger and a touch body mounted on the suction cup. In using this kind of stylus, a user can accomplish an input operation in a portable electronic device by using one hand to hold the portable electronic device and using a finger of the same hand to manipulate the stylus.Type: ApplicationFiled: July 7, 2008Publication date: January 29, 2009Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Shih-Fang Wong, Jun-Wei Zhang, Li-Ping Li, Tao Zeng