Patents by Inventor Yiping Feng
Yiping Feng 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: 11962273Abstract: An electronic circuit including: a differential multiplier circuit with a first differential input and a second differential input and a differential output; and a phase locked loop (PLL) circuit including: (1) a balanced differential mixer circuit with a first differential input electrically connected to the differential output of the differential multiplier circuit, a second differential input, and an output; (2) a loop filter having an output and an input electrically connected to the output of the balanced differential mixer circuit; and (3) a voltage controlled oscillator (VCO) circuit having an input electrically connected to the output of the loop filter and with an output electrically feeding back to the second differential input of the balanced differential mixer circuit.Type: GrantFiled: December 14, 2021Date of Patent: April 16, 2024Assignee: NEC Advanced Networks, Inc.Inventors: Mihai Banu, Yiping Feng
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Patent number: 11819047Abstract: A cam roller type horizontal extrusion cracking system for walnuts, including feeding, cracking and falling devices fixed accordingly on a stand. The feeding device includes a feeding box; an intermittent feeding roller is arranged therein; one side of the roller includes a feeding baffle plate, the other side includes an adjustable feeding scraper blade mechanism; and opposing feeding slots are formed in the roller. The cracking device includes an extrusion box body; movable and fixed tooth-shaped extrusion plates are oppositely mounted therein; one side of the movable plate opposite the fixed includes an extrusion cam; the plates have a plurality of tooth gaps; a walnut passes through the feeding device, falls into a gap between the plates; the cam drives the movable plate to do a periodic reciprocating motion, to synchronously cooperate with the fixed plate to perform extrusion cracking on the walnut.Type: GrantFiled: February 6, 2020Date of Patent: November 21, 2023Assignees: QINGDAO UNIVERSITY OF TECHNOLOGY, XINJIANG JIANG NING LIGHT INDUSTRIAL MACHINERY ENGINEERING TECHNOLOGY CO., LTD.Inventors: Changhe Li, Mingzheng Liu, Yucheng Wang, Yanbin Zhang, Ji Che, Yali Hou, Xiaoming Wang, Yitian Feng, Rong Wang, Yiping Feng, Huaiyu Wang, Zhenming Jia, Lei Zhao, Guangzhen Miao, Runze Li, Teng Gao
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Patent number: 11771126Abstract: The present invention discloses a multi-station adaptive walnut shell pre-breaking system, comprising a feeding device and a shell pre-breaking device.Type: GrantFiled: October 29, 2019Date of Patent: October 3, 2023Assignees: QINGDAO UNIVERSITY OF TECHNOLOGY, XINJIANG JIANG NING LIGHT INDUSTRIAL MACHINERY ENGINEERING TECHNOLOGY CO., LTD.Inventors: Changhe Li, Mingcun Shi, Yiping Feng, Yitian Feng, Zhenming Jia, Leilei Zhao, Rong Wang, Yucheng Wang, Yanbin Zhang, Ji Che, Runze Li, Cai Wang, Min Yang, Yali Hou
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Publication number: 20230106538Abstract: A method of calibrating a transmitter chain in a phased array system in which a lower guard band is assigned to a lower side of an operating carrier of a communication channel and an upper guard band is assigned an upper side of the operating carrier includes injecting a first calibration tone into the transmitter chain and detecting its arrival at the end of the transmitter chain, at which point a first detected calibration signal is generated. The first detected calibration signal and the injected first calibration tone are then compared to produce a first comparison signal. The transmitter chain's phase and/or gain is then adjusted based on this first comparison signal. The first calibration tone located within one of the lower and upper guard bands of the communication channel of the transmitter chain.Type: ApplicationFiled: October 4, 2022Publication date: April 6, 2023Inventors: Gregg S. Nardozza, Giovanni Marzin, Yiping Feng, Robert C. Frye, Mihai Banu
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Publication number: 20220103127Abstract: An electronic circuit including: a differential multiplier circuit with a first differential input and a second differential input and a differential output; and a phase locked loop (PLL) circuit including: (1) a balanced differential mixer circuit with a first differential input electrically connected to the differential output of the differential multiplier circuit, a second differential input, and an output; (2) a loop filter having an output and an input electrically connected to the output of the balanced differential mixer circuit; and (3) a voltage controlled oscillator (VCO) circuit having an input electrically connected to the output of the loop filter and with an output electrically feeding back to the second differential input of the balanced differential mixer circuit.Type: ApplicationFiled: December 14, 2021Publication date: March 31, 2022Inventors: Mihai Banu, Yiping Feng
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Publication number: 20220030924Abstract: A cam roller type horizontal extrusion cracking system for walnuts, including feeding, cracking and falling devices fixed accordingly on a stand. The feeding device includes a feeding box; an intermittent feeding roller is arranged therein; one side of the roller includes a feeding baffle plate, the other side includes an adjustable feeding scraper blade mechanism; and opposing feeding slots are formed in the roller. The cracking device includes an extrusion box body; movable and fixed tooth-shaped extrusion plates are oppositely mounted therein; one side of the movable plate opposite the fixed includes an extrusion cam; the plates have a plurality of tooth gaps; a walnut passes through the feeding device, falls into a gap between the plates; the cam drives the movable plate to do a periodic reciprocating motion, to synchronously cooperate with the fixed plate to perform extrusion cracking on the walnut.Type: ApplicationFiled: February 6, 2020Publication date: February 3, 2022Applicants: QINGDAO UNIVERSITY OF TECHNOLOGY, XINJIANG JIANG NING LIGHT INDUSTRIAL MACHINERY ENGINEERING TECHNOLOGY CO., LTD.Inventors: Changhe LI, Mingzheng LIU, Yucheng WANG, Yanbin ZHANG, Ji CHE, Yali HOU, Xiaoming WANG, Yitian FENG, Rong WANG, Yiping FENG, Huaiyu WANG, Zhenming JIA, Lei ZHAO, Guangzhen MIAO, Runze LI, Teng GAO
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Publication number: 20210401025Abstract: A multi-station adaptive walnut shell pre-breaking system, including a feeding device and a shell pre-breaking device. The feeding device includes a feeding box, a single-helix twister and a double-helix twister are disposed in the feeding box, the single-helix twister and the double-helix twister rotate in opposite directions, and an adjustable spring partition is disposed below the single-helix twister and the double-helix twister; the shell pre-breaking device includes a shell pre-breaking box, a plurality of squeezing stations are provided in the shell pre-breaking box, each of the squeezing stations is provided with a shell pre-breaking assembly, the shell pre-breaking assembly includes a falling U-shaped plate and a squeezing U-shaped plate.Type: ApplicationFiled: October 29, 2019Publication date: December 30, 2021Applicants: QINGDAO UNIVERSITY OF TECHNOLOGY, XINJIANG JIANG NING LIGHT INDUSTRIAL MACHINERY ENGINEERING TECHNOLOGY CO., LTD.Inventors: Changhe LI, Mingcun SHI, Yiping FENG, Yitian FENG, Zhenming JIA, Leilei ZHAO, Rong WANG, Yucheng WANG, Yanbin ZHANG, Ji CHE, Runze LI, Cai WANG, Min YANG, Yali HOU
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Patent number: 10992305Abstract: A method for initializing a phase adder circuit including a multiplier circuit with its two inputs receiving signals of frequency fo, a mixer circuit, an amplifier circuit, a low pass loop filter, and a voltage controlled oscillator (VCO), the method including: during a first phase, determining a reference voltage which when applied to the VCO causes it to produce a signal having a frequency of nf0; during a second phase, supplying a signal of frequency nfo to a first input of the mixer and a signal of frequency (nfo+?f) to a second input of the mixer; and determining an adjustment signal which when applied to the amplifier circuit causes the amplifier circuit to output a signal having a DC component equal to the reference voltage; and during a third phase, forming a primary phase locked loop (PLL) circuit including the mixer, the amplifier circuit, the low pass loop filter and the VCO; and applying the adjustment signal to the amplifier circuit.Type: GrantFiled: January 21, 2020Date of Patent: April 27, 2021Assignee: Blue Danube Systems, Inc.Inventors: Giovanni Marzin, Yiping Feng
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Patent number: 10917048Abstract: An electronic circuit including: a differential multiplier circuit with a first differential input and a second differential input and a differential output; and a phase locked loop (PLL) circuit including: (1) a balanced differential mixer circuit with a first differential input electrically connected to the differential output of the differential multiplier circuit, a second differential input, and an output; (2) a loop filter having an output and an input electrically connected to the output of the balanced differential mixer circuit; and (3) a voltage controlled oscillator (VCO) circuit having an input electrically connected to the output of the loop filter and with an output electrically feeding back to the second differential input of the balanced differential mixer circuit.Type: GrantFiled: August 8, 2019Date of Patent: February 9, 2021Assignee: Blue Danube Systems, Inc.Inventors: Mihai Banu, Yiping Feng
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Publication number: 20200366243Abstract: An electronic circuit including: a differential multiplier circuit with a first differential input and a second differential input and a differential output; and a phase locked loop (PLL) circuit including: (1) a balanced differential mixer circuit with a first differential input electrically connected to the differential output of the differential multiplier circuit, a second differential input, and an output; (2) a loop filter having an output and an input electrically connected to the output of the balanced differential mixer circuit; and (3) a voltage controlled oscillator (VCO) circuit having an input electrically connected to the output of the loop filter and with an output electrically feeding back to the second differential input of the balanced differential mixer circuit.Type: ApplicationFiled: July 27, 2020Publication date: November 19, 2020Inventors: Mihai Banu, Yiping Feng
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Publication number: 20200244275Abstract: A method for initializing a phase adder circuit including a multiplier circuit with its two inputs receiving signals of frequency fo, a mixer circuit, an amplifier circuit, a low pass loop filter, and a voltage controlled oscillator (VCO), the method including: during a first phase, determining a reference voltage which when applied to the VCO causes it to produce a signal having a frequency of nf0; during a second phase, supplying a signal of frequency nfo to a first input of the mixer and a signal of frequency (nfo+?f) to a second input of the mixer; and determining an adjustment signal which when applied to the amplifier circuit causes the amplifier circuit to output a signal having a DC component equal to the reference voltage; and during a third phase, forming a primary phase locked loop (PLL) circuit including the mixer, the amplifier circuit, the low pass loop filter and the VCO; and applying the adjustment signal to the amplifier circuit.Type: ApplicationFiled: January 21, 2020Publication date: July 30, 2020Inventors: Giovanni Marzin, Yiping Feng
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Patent number: 10693417Abstract: An electronic circuit including: a differential multiplier circuit with a first differential input and a second differential input and a differential output; and a phase locked loop (PLL) circuit including: (1) a balanced differential mixer circuit with a first differential input electrically connected to the differential output of the differential multiplier circuit, a second differential input, and an output; (2) a loop filter having an output and an input electrically connected to the output of the balanced differential mixer circuit; and (3) a voltage controlled oscillator (VCO) circuit having an input electrically connected to the output of the loop filter and with an output electrically feeding back to the second differential input of the balanced differential mixer circuit.Type: GrantFiled: March 15, 2018Date of Patent: June 23, 2020Assignee: Blue Danube Systems, Inc.Inventors: Mihai Banu, Yiping Feng
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Patent number: 10574432Abstract: A method of calibrating a phased array including an array of antenna elements, RF communication circuits each of which is electrically coupled to a different corresponding antenna element within the array of antenna elements, and a signal feed network that electrically couples a first signal line to second signal lines, wherein each second signal line is electrically coupled to a different corresponding RF communication circuit among the RF communication circuits, the method involving: performing a first phase of a calibration operation, the first phase of the calibration operation involving calibrating the signal feed network independent of the RF communication circuits; and performing a second phase of the calibration operation, the second phase of the calibration operation involving calibrating, independent of the signal feed network, each of the RF communication circuits until all RF communication circuits among the RF communication circuits are calibrated.Type: GrantFiled: February 15, 2019Date of Patent: February 25, 2020Assignee: Blue Danube Systems, Inc.Inventors: Mihai Banu, Yiping Feng
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Publication number: 20200004298Abstract: An electronic device transforming method and an electronic device are provided. The electronic device transforming method comprises transforming a main body of an electronic device under an external force, wherein in response to transforming the main body of the electronic device, an auxiliary body of the electronic device is transformed along with the main body of the electronic device. A transformation direction of the main body is opposite to a transformation direction of the auxiliary body.Type: ApplicationFiled: July 1, 2019Publication date: January 2, 2020Inventors: Youze LI, Jia ZHANG, Yiping FENG, Yong TAN
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Publication number: 20190363675Abstract: An electronic circuit including: a differential multiplier circuit with a first differential input and a second differential input and a differential output; and a phase locked loop (PLL) circuit including: (1) a balanced differential mixer circuit with a first differential input electrically connected to the differential output of the differential multiplier circuit, a second differential input, and an output; (2) a loop filter having an output and an input electrically connected to the output of the balanced differential mixer circuit; and (3) a voltage controlled oscillator (VCO) circuit having an input electrically connected to the output of the loop filter and with an output electrically feeding back to the second differential input of the balanced differential mixer circuit.Type: ApplicationFiled: August 8, 2019Publication date: November 28, 2019Inventors: Mihai Banu, Yiping Feng
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Publication number: 20190305004Abstract: A display screen includes a plurality of display pixels. Each display pixel includes at least one color film unit. The plurality of display pixels include a plurality of first-type display pixels and one or more second-type display pixels. A color film area of the color film unit of a second-type display pixel is different from a color film area of the color film unit of a first-type display pixel.Type: ApplicationFiled: March 28, 2019Publication date: October 3, 2019Inventors: Youze LI, Jun SHI, Xiangyang LI, Yong TAN, Yiping FENG
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Publication number: 20190182023Abstract: A method of calibrating a phased array including an array of antenna elements, RF communication circuits each of which is electrically coupled to a different corresponding antenna element within the array of antenna elements, and a signal feed network that electrically couples a first signal line to second signal lines, wherein each second signal line is electrically coupled to a different corresponding RF communication circuit among the RF communication circuits, the method involving: performing a first phase of a calibration operation, the first phase of the calibration operation involving calibrating the signal feed network independent of the RF communication circuits; and performing a second phase of the calibration operation, the second phase of the calibration operation involving calibrating, independent of the signal feed network, each of the RF communication circuits until all RF communication circuits among the RF communication circuits are calibrated.Type: ApplicationFiled: February 15, 2019Publication date: June 13, 2019Inventors: Mihai Banu, Yiping Feng
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Patent number: 10225067Abstract: A method of calibrating a phased array including an array of antenna elements, RF communication circuits each of which is electrically coupled to a different corresponding antenna element within the array of antenna elements, and a signal feed network that electrically couples a first signal line to second signal lines, wherein each second signal line is electrically coupled to a different corresponding RF communication circuit among the RF communication circuits, the method involving: performing a first phase of a calibration operation, the first phase of the calibration operation involving calibrating the signal feed network independent of the RF communication circuits; and performing a second phase of the calibration operation, the second phase of the calibration operation involving calibrating, independent of the signal feed network, each of the RF communication circuits until all RF communication circuits among the RF communication circuits are calibrated.Type: GrantFiled: September 8, 2016Date of Patent: March 5, 2019Assignee: Blue Danube Systems, Inc.Inventors: Mihai Banu, Yiping Feng
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Publication number: 20180269836Abstract: An electronic circuit including: a differential multiplier circuit with a first differential input and a second differential input and a differential output; and a phase locked loop (PLL) circuit including: (1) a balanced differential mixer circuit with a first differential input electrically connected to the differential output of the differential multiplier circuit, a second differential input, and an output; (2) a loop filter having an output and an input electrically connected to the output of the balanced differential mixer circuit; and (3) a voltage controlled oscillator (VCO) circuit having an input electrically connected to the output of the loop filter and with an output electrically feeding back to the second differential input of the balanced differential mixer circuit.Type: ApplicationFiled: March 15, 2018Publication date: September 20, 2018Inventors: Mihai Banu, Yiping Feng
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Patent number: 9728836Abstract: An electronic device includes a main body, a movable portion, and a connector. A positional relationship between the main body and the movable portion is changeable via the connector. The main body includes a first surface having a display unit, the movable portion includes a second surface having a long side adaptive to a short side of the first surface, the movable portion has a first communication antenna unit.Type: GrantFiled: June 29, 2015Date of Patent: August 8, 2017Assignees: Beijing Lenovo Software Ltd., Lenovo (Beijing) LimitedInventors: Yiping Feng, Jun Ma, Shuangqi Cen