Patents by Inventor Zhi Quan

Zhi Quan 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).

  • Publication number: 20180103450
    Abstract: A method for reduced overhead paging by an access point is described. The method includes assigning at least one paging identifier to at least one station. The method also includes partitioning a paging identifier space into paging identifier sets. The method further includes generating a paging message based on at least one of the paging identifier sets and the at least one paging identifier. The method additionally includes sending the paging message.
    Type: Application
    Filed: October 6, 2016
    Publication date: April 12, 2018
    Inventors: Simone Merlin, Hemanth Sampath, Santosh Paul Abraham, Maarten Menzo Wentink, Zhi Quan, Alfred Asterjadhi
  • Publication number: 20180097670
    Abstract: A method is provided for digital Simultaneous Information and Energy Transfer (SIET), comprising the steps of receiving a serial SIET analog signal, and converting the serial SIET analog signal received into a parallel SIET analog signal, extracting an analog information signal and an analog energy signal from the parallel SIET analog signal, performing analog-to-digital conversion on the analog information signal to obtain a digital information signal, and performing information demodulation, parallel-to-serial conversion and decoding on the digital information signal in digital domain, and pre-processing the analog energy signal in analog domain and storing the preprocessed analog energy signal. As the information signal is processed in the digital domain and the energy signal is processed in the analog domain, the energy in the SIET signal can be full collected in receiving side.
    Type: Application
    Filed: December 5, 2017
    Publication date: April 5, 2018
    Inventors: Yi GONG, Zhi Quan, Zidong Han
  • Patent number: 9894722
    Abstract: Driver with open output protection Starting current for a load driver (200; 300) for driving a load (L) is provided via the load. In a load driver (200; 300) for driving a load (L), an operating current or an operating voltage at a reference point is derived from a power voltage bus (105; 305) by coupling said reference point to said power voltage bus via the load. A load driver (200; 300) for driving a load (L) comprises an output capacitor (125; 325) and two output terminals (128, 129; 328, 329) coupled to the output capacitor. A coupling diode (202; 325) is coupled in forward connection from one output terminal to a terminal of the output buffer capacitor. A startup terminal (111) of a converter circuit (110) is coupled to said one output terminal (129; 329) to receive a startup current (Is) via the driven load if the load is present to conduct this current.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: February 13, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Zhi Quan Chen, Kang Li
  • Publication number: 20170347288
    Abstract: Systems, methods, and devices for communicating short control frames are described herein. In some aspects, a method of wireless communication includes generating a control frame comprising a contention free end (CF-end) frame, the CF-end frame comprising a physical layer preamble having a type field, the type field including an indicator indicating the CF-end frame is a null data packet (NDP). The method further includes transmitting the control frame.
    Type: Application
    Filed: August 21, 2017
    Publication date: November 30, 2017
    Inventors: Simone Merlin, Santosh Abraham, Maarten Menzo Wentink, Zhi Quan, Alfred Asterjadhi
  • Publication number: 20170289043
    Abstract: A method is disclosed for performing traffic engineering for a flow traversing a communications network having a plurality of nodes communicatively coupled by a plurality of links, with at least one of the plurality of links being a wireless link. The method includes setting an activation factor for the at least one wireless link in accordance with buffer statuses associated with nodes traversed by the flow; and transmitting the activation factor to a scheduling entity for scheduling activation of the at least one wireless link in accordance with the activation factor.
    Type: Application
    Filed: April 26, 2016
    Publication date: October 5, 2017
    Inventors: Nan Zhang, Wei-Cheng Liao, Mingyi Hong, Hamidreza Farmanbar, Zhi-Quan Luo
  • Patent number: 9781627
    Abstract: Systems, methods, and devices for communicating short control frames are described herein. In some aspects, a method of wireless communication includes generating a control frame comprising a contention free end (CF-end) frame, the CF-end frame comprising a physical layer preamble having a type field, the type field including an indicator indicating the CF-end frame is a null data packet (NDP). The method further includes transmitting the control frame.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: October 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Santosh Paul Abraham, Maarten Menzo Wentink, Zhi Quan, Alfred Asterjadhi
  • Publication number: 20170196053
    Abstract: Driver with open output protection Starting current for a load driver (200; 300) for driving a load (L) is provided via the load. In a load driver (200; 300) for driving a load (L), an operating current or an operating voltage at a reference point is derived from a power voltage bus (105; 305) by coupling said reference point to said power voltage bus via the load. A load driver (200; 300) for driving a load (L) comprises an output capacitor (125; 325) and two output terminals (128, 129; 328, 329) coupled to the output capacitor. A coupling diode (202; 325) is coupled in forward connection from one output terminal to a terminal of the output buffer capacitor. A startup terminal (111) of a converter circuit (110) is coupled to said one output terminal (129; 329) to receive a startup current (Is)via the driven load if the load is present to conduct this current.
    Type: Application
    Filed: October 24, 2014
    Publication date: July 6, 2017
    Inventors: Zhi Quan CHEN, Kang LI
  • Publication number: 20170150438
    Abstract: Systems and methods for low overhead paging in a wireless communications network are described herein. In some aspects, an apparatus for wireless communication includes a receiver and a processor. The receiver receives a request from a first device. The request indicates a first period of a plurality of periods corresponding to a periodicity for transmitting paging messages. The processor assigns the first device to a group scheduled to receive paging messages at most every first period based on the request and determines a start time for transmitting paging messages to the first device based on schedules for transmitting paging messages to a plurality of other devices. In other aspects, an apparatus for wireless communication includes a processor and memory. The processor derives an information sub-unit from an information unit associated with a paging message, compresses the information sub-unit, and generates a second information unit associated with the method of compression.
    Type: Application
    Filed: February 3, 2017
    Publication date: May 25, 2017
    Inventors: Simone MERLIN, Maarten Menzo WENTINK, Zhi QUAN, Alfred ASTERJADHI
  • Patent number: 9651730
    Abstract: Disclosed is a lighting device comprising an exit window (30); a plurality of solid state lighting elements (20) arranged in an annular pattern; an optical element (10, 50) for redirecting the luminous output of the solid state lighting elements towards said exit window, the shape of said optical element defining a cavity (15) on a central axis of the lighting device, said cavity being shielded from said luminous output; and a driver circuit (40) for driving at least some of said solid state lighting elements located in said cavity. A luminaire including such a lighting device is also disclosed.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 16, 2017
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Lei Sui, Zhi Quan Chen, Huaizhou Liao, Feng He
  • Publication number: 20170134251
    Abstract: A method is provided for rapidly detecting sensitivity of a wireless radio-frequency receiver and a device thereof. With improved algorithms, received signal powers under a target packet error rate are rapidly detected and thus the sensitivity of the receiver is obtained, and further with a probability computation method, the quantity of data packets to be inspected during each packet error rate measurement under a certain confidence level condition is obtained, so that the time of a single measurement is greatly shortened. The method and device of the invention has the advantages that the computation is greatly simplified compared with the existing receiver sensitivity measurement methods so that the detection efficiency of detectors is improved, and the detection method is optimized so that the precision is ensured, the working efficiency in the industrial detection field is improved, and the production costs are reduced.
    Type: Application
    Filed: January 20, 2017
    Publication date: May 11, 2017
    Inventors: Zhi QUAN, Jie ZHANG
  • Patent number: 9641020
    Abstract: A receiver is provided, wherein the receiver includes an antenna, a band pass filter and a frequency mixer electrically connected in sequence, and a local oscillator electrically connected with the frequency mixer, and further includes: a diplexer for separating and outputting high and low frequency components in a signal outputted by the frequency mixer; and a rectifying unit for converting the high frequency component outputted by the diplexer into direct current energy and storing the direct current energy in a storage battery. The diplexer introduced in the receiver separates a baseband signal and a carrier signal in the same path losslessly, respectively conducts information decoding and energy capture, implements simultaneous information and energy transfer, and does not need to change the present modulation technology, therefor having strong compatibility, being reasonable and simple in structure, and being easy to implement.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: May 2, 2017
    Assignee: South University of Science and Technology of China
    Inventors: Yi Gong, Zhi Quan, Chong Qin, Zidong Han
  • Publication number: 20170070973
    Abstract: A method for reduced overhead paging by an access point is described. The method includes assigning at least one paging identifier to at least one station. The method also includes partitioning a paging identifier space into paging identifier sets. The method further includes generating a paging message based on at least one of the paging identifier sets and the at least one paging identifier. The method additionally includes sending the paging message.
    Type: Application
    Filed: November 18, 2016
    Publication date: March 9, 2017
    Inventors: Simone Merlin, Hemanth Sampath, Santosh Paul Abraham, Menzo Wentink, Zhi Quan, Alfred Asterjadhi
  • Patent number: 9591612
    Abstract: Systems and methods for low overhead paging in a wireless communications network are described herein. In some aspects, an apparatus for wireless communication includes a receiver and a processor. The receiver receives a request from a first device. The request indicates a first period of a plurality of periods corresponding to a periodicity for transmitting paging messages. The processor assigns the first device to a group scheduled to receive paging messages at most every first period based on the request and determines a start time for transmitting paging messages to the first device based on schedules for transmitting paging messages to a plurality of other devices. In other aspects, an apparatus for wireless communication includes a processor and memory. The processor derives an information sub-unit from an information unit associated with a paging message, compresses the information sub-unit, and generates a second information unit associated with the method of compression.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: March 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Maarten Menzo Wentink, Zhi Quan, Alfred Asterjadhi
  • Patent number: 9560630
    Abstract: A method for reduced overhead paging by an access point is described. The method includes assigning at least one paging identifier to at least one station. The method also includes partitioning a paging identifier space into paging identifier sets. The method further includes generating a paging message based on at least one of the paging identifier sets and the at least one paging identifier. The method additionally includes sending the paging message.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: January 31, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Hemanth Sampath, Santosh Paul Abraham, Maarten Menzo Wentink, Zhi Quan, Alfred Asterjadhi
  • Patent number: 9560632
    Abstract: Methods and systems for reducing overhead paging are described. One example of such a method includes generating a compressed traffic indication map (TIM) element, the compressed TIM element comprising a partial virtual bitmap field constructed from at least one encoded block field that includes an encoded block information field identifying at least one encoding mode for encoded block information, and sending the compressed TIM element to an at least one station (STA) associated with the access point that supports at least one multiple basic service set identifier (BSSID). The method may also include, in response to the at least one encoding mode comprising an offset, length, bitmap (OLB) mode, encoding the encoded block information field to include a length subfield followed by contiguous subblock subfields, each subblock subfield including a corresponding subblock of a partial virtual map.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: January 31, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Hemanth Sampath, Santosh Paul Abraham, Maarten Menzo Wentink, Zhi Quan, Alfred Asterjadhi
  • Patent number: 9552161
    Abstract: An analysis device obtains hash lists from databases of a server cluster. The analysis device determines repetitive hash values and repetitive data blocks. The analysis device deletes the repetitive data blocks from servers of the server cluster.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: January 24, 2017
    Assignee: Shenzhen Airdrawing Technology Service Co., Ltd
    Inventors: Zhi-Quan Chai, Da-Peng Li, Hai-Hong Lin, Chung-I Lee
  • Patent number: 9515925
    Abstract: Systems, methods, and devices for communicating packets having a plurality of types are described herein. In some aspects, the packets include a compressed MAC header. In some aspects the packets include an acknowledgment (ACK) frame. The fields included in a particular packet type may be based on the type of information to be communicated to the receiving device.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: December 6, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Maarten Menzo Wentink, Santosh Paul Abraham, Simone Merlin, Geert Awater, Mohammad H. Taghavi Nasrabadi, Zhi Quan, Hemanth Sampath, Alfred Asterjadhi
  • Patent number: 9484690
    Abstract: The present invention relates to a modular electrical connector, and the modular electrical connector can be divided into three modules including: housing, connecting modules, and RJ45 receiving modules, wherein the housing is used for disposed on a circuit board of an external host case, and the connecting modules and the RJ45 receiving modules are assembled and disposed in the housing so as to electrically connected with the circuit board; according to the modular design of the present invention, the RJ45 receiving modules are able to be individually disassembled from the connecting modules and the connector, thus, user does not have to disassembles whole connector during the RJ45 connector's repairing or replacing process.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 1, 2016
    Assignees: DONGGUAN JIAN GUAN PLASTIC ELECTRONIC CO., LTD., U. D. ELECTRONICS CORP., U. D. (ZHONG JIANG) ELECTRONIC CORP.
    Inventors: Chih-Kai Chang, Zhi-Quan Shang
  • Publication number: 20160285489
    Abstract: A receiver is provided, wherein the receiver includes an antenna, a band pass filter and a frequency mixer electrically connected in sequence, and a local oscillator electrically connected with the frequency mixer, and further includes: a diplexer for separating and outputting high and low frequency components in a signal outputted by the frequency mixer; and a rectifying unit for converting the high frequency component outputted by the diplexer into direct current energy and storing the direct current energy in a storage battery. The diplexer introduced in the receiver separates a baseband signal and a carrier signal in the same path losslessly, respectively conducts information decoding and energy capture, implements simultaneous information and energy transfer, and does not need to change the present modulation technology, therefor having strong compatibility, being reasonable and simple in structure, and being easy to implement.
    Type: Application
    Filed: May 31, 2016
    Publication date: September 29, 2016
    Inventors: Yi GONG, Zhi QUAN, Chong QIN, Zidong HAN
  • Patent number: 9432879
    Abstract: Systems, methods, and devices for compressing block acknowledgment (ACK) frames/packets are described herein. In some aspects, a method of communicating in a wireless network includes generating a compressed block acknowledgment frame comprising one or more local addresses. The method further includes transmitting the compressed block acknowledgment frame.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: August 30, 2016
    Assignee: Qualcomm Incorporated
    Inventors: Alfred Asterjadhi, Simone Merlin, Maarten Menzo Wentink, Santosh Paul Abraham, Zhi Quan