Patents by Inventor Wei Zha
Wei Zha 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: 11913691Abstract: An electronic expansion valve and a thermal management assembly. The electronic expansion valve has a valve port and a valve core. A valve body includes a first flow portion, a second flow portion, a first cavity and a second cavity. The first flow portion comprises a first connection section and a first subsection, and the first subsection is directly in communication with the first cavity. The second flow portion comprises a second connection section and a second subsection, and the second subsection is directly in communication with the second cavity. In a clockwise direction, an angle formed between at least one of the center line of the first subsection and the center line of the second subsection and the center line of the valve core is an acute angle.Type: GrantFiled: January 13, 2020Date of Patent: February 27, 2024Assignee: Zhejiang Sanhua Intelligent Controls Co., Ltd.Inventors: Quanfeng Huang, Yingchong Lu, Rongrong Zhang, Dazhao Zha, Wei Zhang
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Publication number: 20230377253Abstract: The present invention relates to a multi-specialty VR scene verification system oriented to a smart subway. The system includes a cloud server, an intelligent dispatching subsystem TIDAS, and a VR subsystem. The VR subsystem includes a VR workstation and a VR device. The VR workstation is respectively connected to the cloud server, the intelligent dispatching subsystem TIDAS and the VR device, and the VR workstation is provided with an on-board controller simulation subsystem, a 3D animation simulation subsystem, and an integrated supervisory control subsystem ISCS. The VR workstation is configured to restore signals and an integrated supervisory control device of a real line according to an actual line and to perform VR virtual scene demonstration. The VR device is configured to operate a device in the VR virtual scene so as to achieve the manual system intervention, fault injection and verification of an output of the system.Type: ApplicationFiled: September 22, 2021Publication date: November 23, 2023Inventors: Wei Zha, Dong Gao, Xiaoyong Wang, Xiaoque Ling, Haigang Cui, Yuesheng Du
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Publication number: 20230345398Abstract: Systems and methods for quickly acquiring a PSS of a broadcast signal are provided. Such systems and methods include performing a time domain differential correlation on sections of the broadcast signal and identifying peak values in a summation of results of the time domain differential correlation. The systems and method also include performing frequency domain differential correlations between the frequency domain versions of the first section and the second section and identifying ones of maximum values of a ratio of output of the frequency domain differential correlations. Finally, the provided systems and methods include searching for the PSS in localized regions of the broadcast signal that are defined in the time domain by the preconfigured number of peak values and in the frequency domain by the ones of the maximum values of the ratio.Type: ApplicationFiled: July 5, 2022Publication date: October 26, 2023Inventors: Wei Zha, Kamran Ghavami, Amir Soltanian
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Publication number: 20230004304Abstract: A storage system includes a switch and a plurality of storage nodes. The switch is configured to receive a first request from a client. The first request includes an identifier of a storage partition. The switch queries an entry in a forwarding table based on the identifier to determine a target storage node in the plurality of storage nodes. The entry includes a mapping relationship between the identifier and the target storage node. The switch sends the first request to the target storage node. The target storage node is configured to receive the first request from the switch.Type: ApplicationFiled: September 8, 2022Publication date: January 5, 2023Inventors: Wei Zha, Changjun He
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Publication number: 20220319333Abstract: The present invention relates to a cloud simulation apparatus and method for verifying a rail transit-oriented full-automatic unmanned driving scene, where the apparatus includes a cloud access terminal and a cloud server terminal. The cloud server terminal includes a central dispatching module, a station control module, a rail-mounted module, an interface logic management layer, and a device base layer, the cloud access terminal is connected to the central dispatching module, the central dispatching module is connected to the station control module and the rail-mounted module respectively, every two of the station control module, the rail-mounted module, and the interface logic management layer are connected, and the interface logic management layer is connected to the device base layer.Type: ApplicationFiled: October 19, 2020Publication date: October 6, 2022Inventors: Wei ZHA, Tonghai SUN, Yuesheng DU, Jianzhong ZHOU, Hanzhe DENG, Zhengbo CHENG
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Patent number: 11265743Abstract: Embodiments disclosed herein include systems and methods for locating all synchronization signal blocks on a 5G new radio channel. Such systems and methods can include measuring downlink signal energy over a bandwidth of the 5G new radio channel to identify a center frequency of a signal broadcast on the 5G new radio channel, processing the signal at the center frequency of the signal to identify a first of a plurality of synchronization signal blocks and global OFDM symbol boundaries for the wireless radio channel, and using the global OFDM symbol boundaries for all raster frequencies of the 5G new radio channel to identify remaining ones of the plurality of synchronization signal blocks.Type: GrantFiled: July 16, 2019Date of Patent: March 1, 2022Assignee: PCTEL, Inc.Inventors: Wei Zha, Amir Soltanian, Antony Thanesh Soosai Retnam
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Patent number: 11171747Abstract: Systems and methods for measuring wireless uplink signal quality of a P25 H-CPM uplink waveform are provided. In particular, such systems and methods can include calculating an SINR measurement and/or an FBER measurement for the P25 H-CPM uplink waveform to determine whether P25 user equipment has been successfully deployed.Type: GrantFiled: October 22, 2020Date of Patent: November 9, 2021Assignee: PCTEL, Inc.Inventors: Gang Wang, Wei Zha
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Patent number: 10972202Abstract: Systems and methods for classifying a P25 Phase 1 downlink transmission as using either C4FM modulation or CQPSK modulation are provided. Some methods can include calculating a first signal-to-noise ratio (SNR) at or near a middle of a first symbol of a received wireless signal, calculating a second SNR at or near an edge of the first symbol, calculating a difference between the second SNR and the first SNR, determining whether the difference is greater than a threshold, and classifying a modulation technique of the received wireless signal as either C4FM modulation or CQPSK modulation based on whether the difference is greater than the threshold.Type: GrantFiled: January 2, 2019Date of Patent: April 6, 2021Assignee: PC-TEL, INC.Inventors: Wei Zha, Gang Wang
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Publication number: 20210022019Abstract: Embodiments disclosed herein include systems and methods for locating all synchronization signal blocks on a 5G new radio channel. Such systems and methods can include measuring downlink signal energy over a bandwidth of the 5G new radio channel to identify a center frequency of a signal broadcast on the 5G new radio channel, processing the signal at the center frequency of the signal to identify a first of a plurality of synchronization signal blocks and global OFDM symbol boundaries for the wireless radio channel, and using the global OFDM symbol boundaries for all raster frequencies of the 5G new radio channel to identify remaining ones of the plurality of synchronization signal blocks.Type: ApplicationFiled: July 16, 2019Publication date: January 21, 2021Inventors: Wei Zha, Amir Soltanian, Antony Thanesh Soosai Retnam
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Patent number: 10805023Abstract: Systems and methods are provided for calculating a SINR measurement for an oversampled P25 C4FM wireless signal received by P25 user equipment or a P25 receiver to determine whether a P25 network and the P25 user equipment or the P25 receiver have been successfully deployed. Some methods can include calculating a first order envelop mean value for the oversampled wireless signal, calculating a second order envelop mean value for the oversampled wireless signal, calculating a fourth order envelop mean value for the oversampled wireless signal, using the fourth order envelop mean value and the second order envelop mean value to estimate the SINR measurement, and using the first order envelop mean value and the second order envelop mean value to refine the SINR measurement.Type: GrantFiled: March 6, 2019Date of Patent: October 13, 2020Assignee: PC-TEL, INC.Inventors: Gang Wang, Wei Zha
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Publication number: 20200287640Abstract: Systems and methods are provided for calculating a SINR measurement for an oversampled P25 C4FM wireless signal received by P25 user equipment or a P25 receiver to determine whether a P25 network and the P25 user equipment or the P25 receiver have been successfully deployed. Some methods can include calculating a first order envelop mean value for the oversampled wireless signal, calculating a second order envelop mean value for the oversampled wireless signal, calculating a fourth order envelop mean value for the oversampled wireless signal, using the fourth order envelop mean value and the second order envelop mean value to estimate the SINR measurement, and using the first order envelop mean value and the second order envelop mean value to refine the SINR measurement.Type: ApplicationFiled: March 6, 2019Publication date: September 10, 2020Inventors: Gang Wang, Wei Zha
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Publication number: 20200213020Abstract: Systems and methods for classifying a P25 Phase 1 downlink transmission as using either C4FM modulation or CQPSK modulation are provided. Some methods can include calculating a first signal-to-noise ratio (SNR) at or near a middle of a first symbol of a received wireless signal, calculating a second SNR at or near an edge of the first symbol, calculating a difference between the second SNR and the first SNR, determining whether the difference is greater than a threshold, and classifying a modulation technique of the received wireless signal as either C4FM modulation or CQPSK modulation based on whether the difference is greater than the threshold.Type: ApplicationFiled: January 2, 2019Publication date: July 2, 2020Inventors: Wei Zha, Gang Wang
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Publication number: 20190324643Abstract: Embodiments of the present disclosure provide a storage system, including a distribution apparatus and a storage device; the storage device includes at least two storage controllers and multiple storage units, where each storage unit is configured with any one of the at least two storage controllers as a home storage controller; and the distribution apparatus includes a front-end interface and at least two back-end interfaces, where the front-end interface is configured to connect to a host device, and each back-end interface is connected to each storage controller in a one-to-one correspondence manner.Type: ApplicationFiled: July 3, 2019Publication date: October 24, 2019Inventors: Huifeng XU, Wei ZHA, Yadong WU, Baifeng YU, Yu ZHANG, Changkun MA
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Patent number: 10372340Abstract: Embodiments of the present disclosure provide a storage system, including a distribution apparatus and a storage device; the storage device includes at least two storage controllers and multiple storage units, where each storage unit is configured with any one of the at least two storage controllers as a home storage controller; and the distribution apparatus includes a front-end interface and at least two back-end interfaces, where the front-end interface is configured to connect to a host device, and each back-end interface is connected to each storage controller in a one-to-one correspondence manner. According to the technical solutions provided in the present disclosure, the distribution apparatus parses an IO read/write instruction, so that the IO read/write instruction can be accurately sent to the home storage controller, which avoids forwarding the IO read/write instruction between the storage controllers, thereby improving IO processing efficiency of the storage system.Type: GrantFiled: June 23, 2017Date of Patent: August 6, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Huifeng Xu, Wei Zha, Yadong Wu, Baifeng Yu, Yu Zhang, Changkun Ma
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Publication number: 20170286283Abstract: Embodiments of the present disclosure provide a storage system, including a distribution apparatus and a storage device; the storage device includes at least two storage controllers and multiple storage units, where each storage unit is configured with any one of the at least two storage controllers as a home storage controller; and the distribution apparatus includes a front-end interface and at least two back-end interfaces, where the front-end interface is configured to connect to a host device, and each back-end interface is connected to each storage controller in a one-to-one correspondence manner. According to the technical solutions provided in the present disclosure, the distribution apparatus parses an IO read/write instruction, so that the IO read/write instruction can be accurately sent to the home storage controller, which avoids forwarding the IO read/write instruction between the storage controllers, thereby improving IO processing efficiency of the storage system.Type: ApplicationFiled: June 23, 2017Publication date: October 5, 2017Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Huifeng Xu, Wei Zha, Yadong Wu, Baifeng Yu, Yu Zhang, Changkun Ma
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Patent number: 8655348Abstract: Systems and methods for acquiring wireless network performance data comprising a user equipment accessible via a wireless network, the user equipment comprising; a receiver, a transmitter, a first processor configured with software executable instructions to cause the user equipment to perform operations comprising; receiving a data acquisition signal via the receiver, sampling a wireless network signal received at the user equipment in response to receiving the data acquisition signal, generating acquired network data, and transmitting the acquired network data via the transmitter, a server accessible via the wireless network, the server comprising, a second processor configured with software executable instructions to cause the server to perform operations comprising; transmitting the data acquisition signal, receiving the acquired network data; and generating network performance data using the acquired network data.Type: GrantFiled: February 18, 2011Date of Patent: February 18, 2014Assignee: PCTEL, Inc.Inventors: Wei Zha, Amir Soltanian, Tony Kobrinetz
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Patent number: 8588136Abstract: A system and method for SSS detection under carrier frequency offset in an orthogonal frequency-division multiple access (OFDMA) downlink channel. A processor receives a signal sample that includes a transmission on a primary synchronization signal (PSS) and a transmission on a one secondary synchronization signal (SSS). The processor determines a correlation “P” of a first symbol transmitted in the PSS of the signal sample to a first known symbol at each time “t” of time increments k of the signal sample and a correlation “S” of a second symbol transmitted in the a SSS to a second known symbol at each time t-.5/7 msecs. The processor receives a candidate phase rotation of ?i from a set of “i” candidates and determines a correlation “Cmax” over the time increments k representing a maximum amplitude of a combined correlation of S and P, with P rotated by ?i.Type: GrantFiled: April 20, 2010Date of Patent: November 19, 2013Assignee: PCTEL, Inc.Inventors: Wei Zha, Amir Soltanian, Yuelun Guo, Wei Lu
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Patent number: 8532027Abstract: A system and method for SSS detection under carrier frequency offset in an orthogonal frequency-division multiple access (OFDMA) downlink channel. A processor receives a signal sample that includes a transmission on a primary synchronization signal (PSS) and a transmission on a one secondary synchronization signal (SSS). The processor determines a correlation “P” of a first symbol transmitted in the PSS of the signal sample to a first known symbol at each time “t” of time increments k of the signal sample and a correlation “S” of a second symbol transmitted in the a SSS to a second known symbol at each time t-.5/7 msecs. The processor receives a candidate phase rotation of ?i from a set of “i” candidates and determines a correlation “Cmax” over the time increments k representing a maximum amplitude of a combined correlation of S and P, with P rotated by ?i.Type: GrantFiled: April 20, 2010Date of Patent: September 10, 2013Assignee: PCTEL, Inc.Inventors: Wei Zha, Amir Soltanian, Yuelun Guo, Wei Lu
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Publication number: 20120214504Abstract: Systems and methods for acquiring wireless network performance data comprising a user equipment accessible via a wireless network, the user equipment comprising; a receiver, a transmitter, a first processor configured with software executable instructions to cause the user equipment to perform operations comprising; receiving a data acquisition signal via the receiver, sampling a wireless network signal received at the user equipment in response to receiving the data acquisition signal, generating acquired network data, and transmitting the acquired network data via the transmitter, a server accessible via the wireless network, the server comprising, a second processor configured with software executable instructions to cause the server to perform operations comprising; transmitting the data acquisition signal, receiving the acquired network data; and generating network performance data using the acquired network data.Type: ApplicationFiled: February 18, 2011Publication date: August 23, 2012Applicant: PCTEL, Inc.Inventors: Wei Zha, Amir Soltanian, Tony Kobrinetz
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Publication number: 20110255394Abstract: A system and method for SSS detection under carrier frequency offset in an orthogonal frequency-division multiple access (OFDMA) downlink channel. A processor receives a signal sample that includes a transmission on a primary synchronization signal (PSS) and a transmission on a one secondary synchronization signal (SSS). The processor determines a correlation “P” of a first symbol transmitted in the PSS of the signal sample to a first known symbol at each time “t” of time increments k of the signal sample and a correlation “S” of a second symbol transmitted in the a SSS to a second known symbol at each time t-.5/7msecs. The processor receives a candidate phase rotation of ?i from a set of “i” candidates and determines a correlation “Cmax” over the time increments k representing a maximum amplitude of a combined correlation of S and P, with P rotated by ?i.Type: ApplicationFiled: April 20, 2010Publication date: October 20, 2011Inventors: Wei Zha, Amir Soltanian, Yuelun Guo, Wei Lu