Patents by Inventor Yunfei Feng
Yunfei 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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Publication number: 20240143566Abstract: In accordance with an embodiment, a data processing method includes: obtaining a first operation command, where the first operation command is used to perform data processing in a relational database; determining an acceleration policy of the first operation command, wherein the acceleration policy is used to accelerate a processing process of the first operation command; and performing an operation of the first operation command based on the acceleration policy.Type: ApplicationFiled: January 5, 2024Publication date: May 2, 2024Inventors: Mingjian Que, Ben Feng, Zhongbin Xue, Yunfei Lu, Yuanyue Zheng
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Patent number: 11953732Abstract: An optical cross-connect disclosed herein includes an input-end unit, an optical beam-splitting and switching unit, and an output-end unit. The input-end unit is configured to transmit a set of first light beams to the optical beam-splitting and switching unit. The optical beam-splitting and switching unit is configured to split each light beam in the set of first light beams into second light beams, to obtain a set of second light beams. The optical beam-splitting and switching unit is further configured to: perform optical path deflection on each light beam in the set of second light beams based on a preset optical-path offset parameter set, and transmit, to the output-end unit, the deflected second light beams. The output-end unit is configured to output the set of second light beams.Type: GrantFiled: August 11, 2020Date of Patent: April 9, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yunfei Yan, Zhiyong Feng, Liangjia Zong
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Publication number: 20240106463Abstract: Aspects of the disclosure relate to wireless communication apparatuses, methods, and other aspects of sliding intermediate frequency filters for carrier aggregation communications. One aspect a high band mixer including a radio frequency (RF) receive signal input, a local oscillator (LO) input, and an IF signal output, a tunable high pass filter including an input and an output, an intermediate frequency (IF) received signal multiplexer including a merged IF CA signal output, a first input, and a second input, an LO input, and an IF signal output, where the RF receive signal input is coupled to the low band mmW CA receive port, and a tunable low pass filter including an input and an output, where the input is coupled to the IF signal output of the low band mixer, and where the output is coupled to the second input of the IF received signal multiplexer.Type: ApplicationFiled: September 23, 2022Publication date: March 28, 2024Inventors: Wu-Hsin CHEN, Yunfei FENG, Vinod PANIKKATH, Li LIU, Sher Jiun FANG
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Patent number: 11942971Abstract: Aspects described herein include devices and methods with chain routing of signals for massive antenna arrays. In some aspects, an apparatus is provided that includes a first millimeter wave (mmW) transceiver having a first port, a second port, one or more antenna elements, a plurality of chain mmW transceiver ports, and switching circuitry. The switching circuitry is controllable by control data to route portions of a merged clock and data signal and a merged control and data signal between a first route between the one or more antenna elements and the first port and a second route between the one or more antenna elements and the second port and a third route between the first port and the plurality of chain mmW transceiver ports and a fourth route between the second port and the plurality of chain mmW transceiver ports.Type: GrantFiled: March 4, 2022Date of Patent: March 26, 2024Assignee: QUALCOMM IncorporatedInventors: Chuan Wang, Li Liu, Wu-Hsin Chen, Vinod Panikkath, Yunfei Feng, Muhammad Hassan
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Patent number: 11915192Abstract: Systems, apparatuses, and methods for scanning a shopping space. The system pace comprises a locomotion system of a motorized unit, a camera system, and a central computer system. The central computer system is configured to receive motorized unit location information from the locomotion system, the motorized unit location information comprises a plurality of sets of coordinates each associated with a timestamp, receive item identifier instances from the camera system, wherein each item identifier instance is associated with a timestamp, and determine a location for each item identifier instance based on the timestamps associated of the item identifier instances and the timestamps associated with the plurality of sets of coordinates of the motorized unit location information.Type: GrantFiled: August 12, 2020Date of Patent: February 27, 2024Assignee: Walmart Apollo, LLCInventors: Bowen Gong, George K. Hunter, Huozhou Xu, Ravi Kumar Dalal, Monisha Elumalai, Yunfei Feng, Yilun Chen, Yusong Yan, Lingyu Lyu
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Patent number: 11862861Abstract: An apparatus is disclosed for a hybrid wireless transceiver architecture that supports multiple antenna arrays. In an example aspect, the apparatus includes a first antenna array, a second antenna array, and a wireless transceiver. The wireless transceiver includes first dedicated circuitry dedicated to the first antenna array and second dedicated circuitry dedicated to the second antenna array. The wireless transceiver also includes shared circuitry that is shared with both the first antenna array and the second antenna array.Type: GrantFiled: March 3, 2022Date of Patent: January 2, 2024Assignee: QUALCOMM IncorporatedInventors: Li Liu, Kevin Hsi Huai Wang, Yunfei Feng, Chuan Wang, Gurkanwal Sahota
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Publication number: 20230344390Abstract: This disclosure provides systems, methods, and devices for wireless communication that support low noise amplification of mmWave radio frequency (RF) signals. In a first aspect, a low noise amplifier includes a first stage amplifier; a second stage amplifier; a configurable first stage bypass coupled between a first input and a first output of the first stage amplifier; and a configurable second stage bypass coupled between a second input and a second output of the second stage amplifier. Other aspects and features are also claimed and described.Type: ApplicationFiled: April 21, 2022Publication date: October 26, 2023Inventors: Alaaeldien Mohamed Abdelrazek Medra, Xinmin Yu, Yunfei Feng
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Publication number: 20230283303Abstract: Aspects described herein include devices and methods with chain routing of signals for massive antenna arrays. In some aspects, an apparatus is provided that includes a first millimeter wave (mmW) transceiver having a first port, a second port, one or more antenna elements, a plurality of chain mmW transceiver ports, and switching circuitry. The switching circuitry is controllable by control data to route portions of a merged clock and data signal and a merged control and data signal between a first route between the one or more antenna elements and the first port and a second route between the one or more antenna elements and the second port and a third route between the first port and the plurality of chain mmW transceiver ports and a fourth route between the second port and the plurality of chain mmW transceiver ports.Type: ApplicationFiled: March 4, 2022Publication date: September 7, 2023Inventors: Chuan WANG, Li LIU, Wu-Hsin CHEN, Vinod PANIKKATH, Yunfei FENG, Muhammad HASSAN
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Patent number: 11533075Abstract: An apparatus includes a transformer including a first inductor, a second inductor, and a third inductor. The apparatus also includes a power amplifier having an output coupled to the first inductor, a low-noise amplifier having an input coupled to a first terminal of the third inductor, and a fourth inductor having a first terminal and a second terminal, wherein the second terminal of the fourth inductor is coupled to a second terminal of the third inductor. The apparatus also includes a switch coupled between the first terminal of the third inductor and the first terminal of the fourth inductor.Type: GrantFiled: September 17, 2021Date of Patent: December 20, 2022Assignee: QUALCOMM IncorporatedInventors: Xinmin Yu, Bon-Hyun Ku, Yunfei Feng, Chuan Wang
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Publication number: 20220224022Abstract: An apparatus is disclosed for a hybrid wireless transceiver architecture that supports multiple antenna arrays. In an example aspect, the apparatus includes a first antenna array, a second antenna array, and a wireless transceiver. The wireless transceiver includes first dedicated circuitry dedicated to the first antenna array and second dedicated circuitry dedicated to the second antenna array. The wireless transceiver also includes shared circuitry that is shared with both the first antenna array and the second antenna array.Type: ApplicationFiled: March 3, 2022Publication date: July 14, 2022Inventors: Li Liu, Kevin Hsi Huai Wang, Yunfei Feng, Chuan Wang, Gurkanwal Sahota
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Patent number: 11271328Abstract: An apparatus is disclosed for a hybrid wireless transceiver architecture that supports multiple antenna arrays. In an example aspect, the apparatus includes a first antenna array, a second antenna array, and a wireless transceiver. The wireless transceiver includes first dedicated circuitry dedicated to the first antenna array and second dedicated circuitry dedicated to the second antenna array. The wireless transceiver also includes shared circuitry that is shared with both the first antenna array and the second antenna array.Type: GrantFiled: September 24, 2018Date of Patent: March 8, 2022Assignee: QUALCOMM IncorporatedInventors: Li Liu, Kevin Hsi Huai Wang, Yunfei Feng, Chuan Wang, Gurkanwal Sahota
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Publication number: 20210049541Abstract: Systems, apparatuses, and methods for scanning a shopping space. The system pace comprises a locomotion system of a motorized unit, a camera system, and a central computer system. The central computer system is configured to receive motorized unit location information from the locomotion system, the motorized unit location information comprises a plurality of sets of coordinates each associated with a timestamp, receive item identifier instances from the camera system, wherein each item identifier instance is associated with a timestamp, and determine a location for each item identifier instance based on the timestamps associated of the item identifier instances and the timestamps associated with the plurality of sets of coordinates of the motorized unit location information.Type: ApplicationFiled: August 12, 2020Publication date: February 18, 2021Inventors: Bowen Gong, George K. Hunter, Huozhou Xu, Ravi Kumar Dalal, Monisha Elumalai, Yunfei Feng, Yilun Chen, Yusong Yan, Lingyu Lyu
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Patent number: 10756772Abstract: An apparatus is disclosed for mixing signals with a multi-mode mixer for frequency translation. In example implementations, a multi-mode mixer includes a supply voltage node, a ground node, a first data signal coupler, and a second data signal coupler. The multi-mode mixer also includes a mixer core and a current control switch. The mixer core is coupled between the first data signal coupler and the second data signal coupler. The current control switch is configured to selectively enable or disable flow of a current through the mixer core. The first data signal coupler, the second data signal coupler, the mixer core, and the current control switch are coupled together in series between the supply voltage node and the ground node.Type: GrantFiled: May 21, 2019Date of Patent: August 25, 2020Assignee: QUALCOMM IncorporatedInventors: Chirag Dipak Patel, Jeremy Goldblatt, Yunfei Feng, Li Liu, Xinmin Yu, Aliakbar Homayoun
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Patent number: 10673411Abstract: The present disclosure provides an apparatus that includes a first mixer circuit configured to convert between an RF signal and an IF signal based at least in part on an local oscillator (LO) signal. The first mixer circuit is electrically coupled to a first node that is configured to receive the LO signal and a first bias voltage, a second node that is configured to receive the RF signal or the IF signal, and a third node that is configured to provide the IF signal or the RF signal. The apparatus further includes a second mixer circuit electrically coupled to a fourth node configured to receive the LO signal and a second bias voltage, the second node, and the third node. The second bias voltage has a voltage level that is offset from the first bias voltage.Type: GrantFiled: January 24, 2019Date of Patent: June 2, 2020Assignee: QUALCOMM IncorporatedInventors: Xinmin Yu, Lai Kan Leung, Yunfei Feng, Chirag Dipak Patel
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Publication number: 20200099144Abstract: An apparatus is disclosed for a hybrid wireless transceiver architecture that supports multiple antenna arrays. In an example aspect, the apparatus includes a first antenna array, a second antenna array, and a wireless transceiver. The wireless transceiver includes first dedicated circuitry dedicated to the first antenna array and second dedicated circuitry dedicated to the second antenna array. The wireless transceiver also includes shared circuitry that is shared with both the first antenna array and the second antenna array.Type: ApplicationFiled: September 24, 2018Publication date: March 26, 2020Inventors: Li Liu, Kevin Hsi Huai Wang, Yunfei Feng, Chuan Wang, Gurkanwal Sahota
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Patent number: 10498298Abstract: An apparatus is disclosed for time-division duplex dynamic transceiver isolation. In an example aspect, the apparatus includes an antenna, a power amplifier circuit including at least one power-amplifying path, a low-noise amplifier, and a time-division duplex interface circuit. The interface includes at least one transmit node coupled to the at least one power-amplifying path, a receive node coupled to the low-noise amplifier, and an antenna node. The antenna node is coupled to the at least one transmit node, the receive node, and the antenna. The interface circuit is configured to connect the at least one transmit node, the receive node, and the antenna node together at both a first time and a second time. The interface circuit is configured to isolate the receive node from the antenna node at the first time and isolate the at least one transmit node from the antenna node at the second time.Type: GrantFiled: August 10, 2018Date of Patent: December 3, 2019Assignee: QUALCOMM IncorporatedInventors: Chuan Wang, Li Liu, Bhushan Shanti Asuri, Kevin Hsi Huai Wang, Yunfei Feng
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Publication number: 20190238117Abstract: The present disclosure provides an apparatus that includes a first mixer circuit configured to convert between an RF signal and an IF signal based at least in part on an local oscillator (LO) signal. The first mixer circuit is electrically coupled to a first node that is configured to receive the LO signal and a first bias voltage, a second node that is configured to receive the RF signal or the IF signal, and a third node that is configured to provide the IF signal or the RF signal. The apparatus further includes a second mixer circuit electrically coupled to a fourth node configured to receive the LO signal and a second bias voltage, the second node, and the third node. The second bias voltage has a voltage level that is offset from the first bias voltage.Type: ApplicationFiled: January 24, 2019Publication date: August 1, 2019Inventors: Xinmin YU, Lai Kan LEUNG, Yunfei FENG, Chirag Dipak PATEL
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Publication number: 20170201408Abstract: Wireless receivers are configured to support carrier aggregation. A device may include at least one low-noise amplifier (LNA). The device may also include a first input path configured to convey a first signal to a first input of the at least one LNA(s), and a second input path configured to convey a second signal to a second input of the LNA(s). Further, the device may include a transformer configured to inductively couple the first input path to the second input path.Type: ApplicationFiled: June 7, 2016Publication date: July 13, 2017Inventors: Yunfei FENG, Chuan WANG, Dongling PAN, Chiewcharn NARATHONG
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Patent number: 9130666Abstract: Receiver circuits that can be reconfigured to generate test signals in a wireless device are disclosed. In an exemplary design, an apparatus includes a mixer and an amplifier. The mixer downconverts an input radio frequency (RF) signal based on a local oscillator (LO) signal in a first mode. The amplifier, which is formed by at least a portion of the mixer, amplifies the LO signal and provides an amplified LO signal in a second mode. In another exemplary design, an apparatus includes an amplifier and an attenuator. The amplifier receives and amplifies an input RF signal in a first mode. The attenuator, which is formed by at least a portion of the amplifier, receives and passes an LO signal in a second mode.Type: GrantFiled: June 12, 2014Date of Patent: September 8, 2015Assignee: QUALCOMM IncorporatedInventors: Lai Kan Leung, Chiewcharn Narathong, Jianyun Hu, Yunfei Feng
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Publication number: 20140295783Abstract: Receiver circuits that can be reconfigured to generate test signals in a wireless device are disclosed. In an exemplary design, an apparatus includes a mixer and an amplifier. The mixer downconverts an input radio frequency (RF) signal based on a local oscillator (LO) signal in a first mode. The amplifier, which is formed by at least a portion of the mixer, amplifies the LO signal and provides an amplified LO signal in a second mode. In another exemplary design, an apparatus includes an amplifier and an attenuator. The amplifier receives and amplifies an input RF signal in a first mode. The attenuator, which is formed by at least a portion of the amplifier, receives and passes an LO signal in a second mode.Type: ApplicationFiled: June 12, 2014Publication date: October 2, 2014Inventors: Kan Lai Leung, Chiewcharn Narathong, Jianyun Hu, Yunfei Feng