Patents by Inventor Zhang Jin
Zhang 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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Patent number: 10116259Abstract: Certain aspects of the present disclosure provide an inductor-enclosed switchable voltage-controlled oscillator (VCO), for use in a frequency synthesizer of a radio frequency integrated circuit (RFIC), for example. One example apparatus is a frequency synthesizer that generally includes a first VCO circuit comprising a first inductor and a second VCO circuit comprising a second inductor, wherein at least a portion of the first VCO circuit is disposed inside a loop of the second inductor. According to certain aspects, at least a portion of the second VCO circuit is disposed inside a loop of the first inductor.Type: GrantFiled: November 20, 2014Date of Patent: October 30, 2018Assignee: QUALCOMM IncorporatedInventors: Yiping Han, Yung-Chung Lo, Zhang Jin
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Publication number: 20180301791Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, an antenna module may include a substrate; a first dipole antenna positioned such that conductive components of the first dipole antenna are oriented on a first plane that is approximately parallel to a mounting surface of the substrate; and a second dipole antenna positioned such that conductive components of the second dipole antenna are oriented on a second plane that is approximately perpendicular to the mounting surface of the substrate, wherein the second dipole antenna is positioned to cover a broadside radiation pattern approximately perpendicular to the mounting surface. Numerous other aspects are provided.Type: ApplicationFiled: April 13, 2018Publication date: October 18, 2018Inventors: Zhang JIN, Jeong II Kim
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Publication number: 20180294540Abstract: Certain aspects of the present disclosure provide a directional coupler. In certain aspects, the directional coupler generally includes a first inductor and a second inductor wirelessly coupled to the first inductor. In certain aspects, the directional coupler generally includes an input port at a first terminal of the first inductor and a transmitted port at a second terminal of the first inductor. In certain aspects, the directional coupler generally includes a coupled port at a first terminal of the second inductor and an isolated port at a second terminal of the second inductor. In certain aspects, the directional coupler generally includes a first complex impedance component directly coupled to the isolated port and a second complex impedance component directly coupled to the coupled port.Type: ApplicationFiled: April 6, 2018Publication date: October 11, 2018Inventors: Haitao CHENG, Zhang JIN, Abbas ABBASPOUR-TAMIJANI
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Publication number: 20180269585Abstract: In an aspect, an apparatus may be an apparatus for wireless communication. The apparatus for wireless communication may include a transceiver, a memory, and at least one processor coupled to the memory and configured to execute instructions stored in the memory to control the transceiver. In another aspect, an apparatus may be an apparatus for wireless communication. The apparatus for wireless communication may include a patch antenna coupled to the transceiver. The patch antenna includes a patch, a ground plane substantially located with respect to the patch, a probe feed coupled to the patch, and a slot-coupled feed configured to couple to the patch.Type: ApplicationFiled: March 15, 2018Publication date: September 20, 2018Inventors: Jeong Il KIM, Jorge FABREGA SANCHEZ, Mohammad Ali TASSOUDJI, Abbas ABBASPOUR-TAMIJANI, Yu-Chin OU, Zhang JIN, Thomas MYERS
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Publication number: 20180205413Abstract: Various aspects described herein relate to low-loss multi-band multiplexing schemes for a wireless communications system, for example, a 5th Generation (5G) New Radio (NR) system. In an aspect, a multiplexer for multi-band wireless communications comprises at least one tuning component configured to transmit or receive at least one signal within a frequency band that is selected from a plurality of frequency bands. The multiplexer further comprises at least one combining component, communicatively coupled with the at least one tuning component, configured to transmit or receive the at least one signal within the selected frequency band. In an aspect, the at least one tuning component is integrated on a chip and the at least one combining component is not integrated on the chip.Type: ApplicationFiled: January 16, 2018Publication date: July 19, 2018Inventors: Chirag Dipak PATEL, Lai Kan LEUNG, Zhang JIN, Chinmaya MISHRA, Ravi SRIDHARA, Youngchang YOON
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Patent number: 10026685Abstract: Metal-oxide-metal (MOM) type capacitors include a first terminal configured to receive a first voltage, the first terminal being formed on a first dielectric layer; a first set of fingers formed on the first dielectric layer, the first set of fingers being coupled to the first terminal via a conductive trace formed on a second dielectric layer; a second terminal configured to receive second voltage, the second terminal being formed on the first dielectric layer; and a second set of fingers formed on the first dielectric layer, the second set of fingers being coupled to the second terminal, wherein the fingers of the second set are interspersed with the fingers of the first set.Type: GrantFiled: September 25, 2015Date of Patent: July 17, 2018Assignee: QUALCOMM IncorporatedInventors: Zhang Jin, Tao Yang, Tsai-Pi Hung, Mohammad Farazian
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Publication number: 20170093362Abstract: Metal-oxide-metal (MOM) type capacitors include a first terminal configured to receive a first voltage, the first terminal being formed on a first dielectric layer; a first set of fingers formed on the first dielectric layer, the first set of fingers being coupled to the first terminal via a conductive trace formed on a second dielectric layer; a second terminal configured to receive second voltage, the second terminal being formed on the first dielectric layer; and a second set of fingers formed on the first dielectric layer, the second set of fingers being coupled to the second terminal, wherein the fingers of the second set are interspersed with the fingers of the first set.Type: ApplicationFiled: September 25, 2015Publication date: March 30, 2017Inventors: Zhang Jin, Tao Yang, Tsai-Pi Hung, Mohammad Farazian
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Publication number: 20160365189Abstract: Certain aspects of the present disclosure provide techniques and apparatus employing an isolation ring having a center strip of conductive material used to isolate magnetic fields generated by common-mode and differential-mode current flow through one or more inductors disposed in the ring. The apparatus generally includes an electrical component having an inductive element and a ring of electrically conductive material encircling the inductive element, wherein the ring has a strip of electrically conductive material disposed in the ring and connecting a first point on the ring to a second point on the ring.Type: ApplicationFiled: June 12, 2015Publication date: December 15, 2016Inventors: Zhang JIN, Yung-Chung LO, Youngchang YOON, Ning YUAN, Apsara RAVISH SUVARNA
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Publication number: 20160132866Abstract: The present disclosure directs to method, device, system for creating virtual credit card. The method may include: acquiring a subset of real-name information from a user interface of a terminal device; searching the real-name information stored in the first server with the subset of the real-name information; upon the real-name information is found in the first server, sending the real-name user information to a second server; finding whether the real-name information associates with a credit card account stored in the second server; after finding the credit card account is stored in the second server, creating, by the second server, a virtual credit card account; and storing the virtual credit card associated with the virtual credit card account in the data storage of the first server.Type: ApplicationFiled: December 29, 2015Publication date: May 12, 2016Inventors: Liu Gui, Wu Li, Gong Chen, Zhang Wen Jing, Zhang Jin Ming, Tan Jin Wen, Guo Yi Xin, Ye Wa, Hou Liang, Xu Zhen Yu, Zhang Bin, Chen Wei, Zheng Hao Jian, Jiang Ying Yi, Song Ling Yun, Jiang Nan
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Patent number: 9316227Abstract: A compressor may include a shell, a compression mechanism, a crankshaft, a bearing support, and a lubricant sump. The compression mechanism may be disposed in the shell and may compress a working fluid. The crankshaft may be disposed at least partially in the shell and may drivingly engage the compression mechanism. The bearing support may rotatably support the crankshaft. The lubricant sump may retain a volume of lubricant and may be disposed between the bearing support and the compression mechanism.Type: GrantFiled: November 18, 2013Date of Patent: April 19, 2016Assignee: Emerson Climate Technologies, Inc.Inventors: Guibin Wang, Zhang Jin, Weihua Guo, Honghong Zhan, Shi Wang
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Patent number: 9312927Abstract: A tunable guard ring for improved circuit isolation is disclosed. In an exemplary embodiment, an apparatus includes a closed loop guard ring formed on an integrated circuit and magnetically coupled by a selected coupling factor to a first inductor formed on the integrated circuit. The apparatus also includes a tunable capacitor forming a portion of the closed loop guard ring and configured to reduce magnetic field coupling from the first inductor to a second inductor.Type: GrantFiled: November 11, 2013Date of Patent: April 12, 2016Assignee: Qualcomm IncorporatedInventors: Maulin Pareshbhai Bhagat, Thomas Andrew Myers, Lan Nan, Zhang Jin
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Publication number: 20150349711Abstract: Certain aspects of the present disclosure provide an inductor-enclosed switchable voltage-controlled oscillator (VCO), for use in a frequency synthesizer of a radio frequency integrated circuit (RFIC), for example. One example apparatus is a frequency synthesizer that generally includes a first VCO circuit comprising a first inductor and a second VCO circuit comprising a second inductor, wherein at least a portion of the first VCO circuit is disposed inside a loop of the second inductor. According to certain aspects, at least a portion of the second VCO circuit is disposed inside a loop of the first inductor.Type: ApplicationFiled: November 20, 2014Publication date: December 3, 2015Inventors: Yiping HAN, Yung-Chung LO, Zhang JIN
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Patent number: 9154087Abstract: Amplifiers with configurable mutually-coupled source degeneration inductors are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a plurality of inductors, which may implement an amplifier. The gain transistor receives an input signal and provides an amplified signal. The plurality of inductors are mutually coupled, are coupled to the gain transistor, and provide a programmable source degeneration inductance for the gain transistor. The inductors may have a positive coupling coefficient and may provide a larger source degeneration inductance. Alternatively, the inductors may have a negative coupling coefficient and may provide a smaller source degeneration inductance.Type: GrantFiled: August 1, 2013Date of Patent: October 6, 2015Assignee: Qualcomm IncorporatedInventors: Zhang Jin, Ahmed A. Youssef, Li-Chung Chang
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Patent number: 9130529Abstract: A device includes a first and a second low noise amplifier (LNA), a first degenerative inductance coupled between the first LNA and ground by a first ground connection, and a second degenerative inductance coupled between the second LNA and ground by a second ground connection, the first and second degenerative inductances configured to establish negative inductive coupling between the first and second degenerative inductances.Type: GrantFiled: January 17, 2014Date of Patent: September 8, 2015Assignee: Qualcomm IncorporatedInventors: Ehab Ahmed Sobhy Abdel Ghany, Sang Hyun Woo, Wingching Vincent Leung, Zhang Jin, Li-Chung Chang
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Publication number: 20150207482Abstract: A device includes a first and a second low noise amplifier (LNA), a first degenerative inductance coupled between the first LNA and ground by a first ground connection, and a second degenerative inductance coupled between the second LNA and ground by a second ground connection, the first and second degenerative inductances configured to establish negative inductive coupling between the first and second degenerative inductances.Type: ApplicationFiled: January 17, 2014Publication date: July 23, 2015Applicant: QUALCOMM IncorporatedInventors: Ehab Ahmed Sobhy Abdel Ghany, Sang Hyun Woo, Wingching Vincent Leung, Zhang Jin, Li-Chung Chang
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Publication number: 20150130552Abstract: A tunable guard ring for improved circuit isolation is disclosed. In an exemplary embodiment, an apparatus includes a closed loop guard ring formed on an integrated circuit and magnetically coupled by a selected coupling factor to a first inductor formed on the integrated circuit. The apparatus also includes a tunable capacitor forming a portion of the closed loop guard ring and configured to reduce magnetic field coupling from the first inductor to a second inductor.Type: ApplicationFiled: November 11, 2013Publication date: May 14, 2015Applicant: QUALCOMM IncorporatedInventors: Maulin Pareshbhai Bhagat, Thomas Andrew Myers, Lan Nan, Zhang Jin
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Publication number: 20150035600Abstract: Amplifiers with configurable mutually-coupled source degeneration inductors are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a gain transistor and a plurality of inductors, which may implement an amplifier. The gain transistor receives an input signal and provides an amplified signal. The plurality of inductors are mutually coupled, are coupled to the gain transistor, and provide a programmable source degeneration inductance for the gain transistor. The inductors may have a positive coupling coefficient and may provide a larger source degeneration inductance. Alternatively, the inductors may have a negative coupling coefficient and may provide a smaller source degeneration inductance.Type: ApplicationFiled: August 1, 2013Publication date: February 5, 2015Applicant: QUALCOMM IncorporatedInventors: Zhang Jin, Ahmed A. Youssef, Li-Chung Chang
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Patent number: 8810322Abstract: A wideband frequency generator has two or more oscillators for different frequency bands, disposed on the same die within a flip chip package. Coupling between inductors of the two oscillators is reduced by placing one inductor on the die and the other inductor on the package, separating the inductors by a solder bump diameter. The loosely coupled inductors allow manipulation of the LC tank circuit of one of the oscillators to increase the bandwidth of the other oscillator, and vice versa. Preventing undesirable mode of oscillation in one of the oscillators may be achieved by loading the LC tank circuit of the other oscillator with a large capacitance, such as the entire capacitance of the coarse tuning bank of the other oscillator. Preventing the undesirable mode may also be achieved by decreasing the quality factor of the other oscillator's LC tank and thereby increasing the losses in the tank circuit.Type: GrantFiled: November 14, 2011Date of Patent: August 19, 2014Assignee: Qualcomm IncorporatedInventors: Rajagopalan Rangarajan, Chinmaya Mishra, Maulin Bhagat, Zhang Jin
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Patent number: 8742859Abstract: A tunable inductor circuit is disclosed. The tunable inductor circuit includes a first inductor. The tunable inductor circuit also includes a second inductor in parallel with the first inductor. The tunable inductor circuit also includes a switch coupled to the second inductor. A resistance of the switch is added in parallel to the first inductor based on operation of the switch.Type: GrantFiled: December 6, 2011Date of Patent: June 3, 2014Assignee: QUALCOMM IncorporatedInventors: Zhang Jin, Li Liu, Chiewcham Narathong
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Publication number: 20140072467Abstract: A compressor may include a shell, a compression mechanism, a crankshaft, a bearing support, and a lubricant sump. The compression mechanism may be disposed in the shell and may compress a working fluid. The crankshaft may be disposed at least partially in the shell and may drivingly engage the compression mechanism. The bearing support may rotatably support the crankshaft. The lubricant sump may retain a volume of lubricant and may be disposed between the bearing support and the compression mechanism.Type: ApplicationFiled: November 18, 2013Publication date: March 13, 2014Applicant: Emerson Climate Technologies, Inc.Inventors: Guibin WANG, Zhang JIN, Weihua GUO, Honghong ZHAN, Shi WANG