Patents by Inventor Qiuzhen Zou
Qiuzhen Zou 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: 20150280775Abstract: Aspects of the present invention include methods, systems, and computer-readable medium for canceling interference in wireless communication. The method includes receiving wireless CDMA communication signals using one or more antennas at least from a first entity via a first communication channel and a second entity via a second communication channel, determining a set of known characteristics associated with the first entity, the first set of characteristics comprising a first signal strength, a first synchronization information, and an first channel identification information, and determining an aggregate signal matrix based on signals received from at least the first entity and the second entity.Type: ApplicationFiled: November 13, 2012Publication date: October 1, 2015Inventors: Weiping Xu, Feng Wan, Liang Xu, Yuan Li, Qiuzhen Zou
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Patent number: 9148319Abstract: Dynamically scheduling multi-receive-path signal equalizer tasks. An estimated maximum Doppler frequency and an estimated delay spread of a particular wireless communications channel may be determined at a particular time. A particular task queue format and a particular predictor model order update period may be identified based on the estimated maximum Doppler frequency and delay spread. A particular predictor model order update rate may be selected based on the identified particular equalizer task queue format. A plurality of task control signals may be generated based on the particular task queue format, the particular predictor model order-update period, and the particular predictor model order-search range, to control equalizer coefficient generation within a particular time period.Type: GrantFiled: February 20, 2013Date of Patent: September 29, 2015Assignee: SHANGHAI MOBILEPEAK SEMICONDUCTOR CO., LTD.Inventors: Feng Wan, Weiping Xu, Yuan Li, Qiuzhen Zou
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Publication number: 20150215139Abstract: Dynamically scheduling multi-receive-path signal equalizer tasks. An estimated maximum Doppler frequency and an estimated delay spread of a particular wireless communications channel may be determined at a particular time. A particular task queue format and a particular predictor model order update period may be identified based on the estimated maximum Doppler frequency and delay spread. A particular predictor model order update rate may be selected based on the identified particular equalizer task queue format. A plurality of task control signals may be generated based on the particular task queue format, the particular predictor model order-update period, and the particular predictor model order-search range, to control equalizer coefficient generation within a particular time period.Type: ApplicationFiled: February 20, 2013Publication date: July 30, 2015Inventors: Feng Wan, Weiping Xu, Yuan Li, Qiuzhen Zou
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Patent number: 9008154Abstract: Aspects of the present invention include methods, systems, and computer-readable medium for canceling interference in wireless communication. The method includes receiving wireless CDMA communication signals using one or more antennas at least from a first entity via a first communication channel and a second entity via a second communication channel, determining a set of known characteristics associated with the first entity, the first set of characteristics comprising a first signal strength, a first synchronization information, and an first channel identification information, and determining an aggregate signal matrix based on signals received from at least the first entity and the second entity.Type: GrantFiled: November 12, 2013Date of Patent: April 14, 2015Assignee: Shanghai Mobilepeak Semiconductor Co., Ltd.Inventors: Weiping Xu, Feng Wan, Liang Xu, Yuan Li, Qiuzhen Zou
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Patent number: 8812706Abstract: A method, apparatus, and computer program product embodied on a hardware computer readable storage medium for compensating mismatched delays in at least two signals of a mobile display digital interface (MDDI) system. The method, apparatus, and computer program product embodied on a hardware computer readable storage medium sends a skew calibration packet from a host to a client. The host begins a calibration pattern; then toggling a data signal and a strobe signal at a substantially similar time which strobe signal is used by the client as a clock source. The method, apparatus, and computer program product embodied on a hardware computer readable storage medium also aligns a timing of the strobe signal and the data signal by providing varying delays and resetting the client to an original clock source before a next packet reception.Type: GrantFiled: September 6, 2002Date of Patent: August 19, 2014Assignee: QUALCOMM IncorporatedInventors: Qiuzhen Zou, George A. Wiley, Brian Steele
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Patent number: 8745251Abstract: A data Interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range “serial” type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.Type: GrantFiled: April 16, 2004Date of Patent: June 3, 2014Assignee: QUALCOMM IncorporatedInventors: Qiuzhen Zou, George Alan Wiley, Brian Steele
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Publication number: 20140133523Abstract: Aspects of the present invention include methods, systems, and computer-readable medium for canceling interference in wireless communication. The method includes receiving wireless CDMA communication signals using one or more antennas at least from a first entity via a first communication channel and a second entity via a second communication channel, determining a set of known characteristics associated with the first entity, the first set of characteristics comprising a first signal strength, a first synchronization information, and an first channel identification information, and determining an aggregate signal matrix based on signals received from at least the first entity and the second entity.Type: ApplicationFiled: November 12, 2013Publication date: May 15, 2014Applicant: Shanghai Mobilepeak Semiconductor Co., Ltd.Inventors: Weiping XU, Feng Wan, Liang Xu, Yuan Li, Qiuzhen Zou
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Patent number: 8694663Abstract: A data Interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range “serial” type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.Type: GrantFiled: July 15, 2010Date of Patent: April 8, 2014Assignee: QUALCOMM IncorporatedInventors: Qiuzhen Zou, George Alan Wiley, Brian Steele
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Patent number: 8582623Abstract: Searcher hardware is multiplexed to perform simultaneous searches in either an IS-95 CDMA mode or a GPS mode. In the IS-95 mode, the search hardware is time-multiplexed into a number of searcher time slices, each of which can generate a PN sequence to despread a data sequence. In the GPS mode, the search hardware is configured as a number of distinct GPS channels, each of which can generate a Gold code sequence for tracking a GPS signal from a particular GPS satellite. This configuration allows the searcher to perform multiple GPS signal searches simultaneously. Signal searching in both IS-95 and GPS modes is performed at significantly higher speeds compared to conventional searcher hardware. Moreover, the search hardware can be dynamically configured to operate in either the IS-95 or the GPS mode, eliminating the need for dedicated circuitry for each mode of operation.Type: GrantFiled: May 7, 2010Date of Patent: November 12, 2013Assignee: QUALCOMM IncorporatedInventors: Wang Paul Poon, Qiuzhen Zou
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Patent number: 8332840Abstract: The present invention relates to a method of computer based data card software downloading and updating, in which, the data card connects with computer via data communication interface and acts the power on initial process at same time, the data card downloads software kit from computer to RAM memory, and the data card operates the software kit downloaded to the RAM memory.Type: GrantFiled: September 26, 2008Date of Patent: December 11, 2012Assignee: Shanghai Mobilepeak Semiconductor Co., Ltd.Inventors: Qiuzhen Zou, Chunlai Yi, Fengchun Xu
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Patent number: 8005475Abstract: A wireless communications device is configurable to communicate with either one of two networks over a wireless medium, each of the two networks having a different air interface protocol. Additionally, the wireless device includes stored provisioning information for a set of networks of a first type and can map this first provisioning information into a second format for use with networks of a second type. The device also includes a non-volatile memory for storing default provisioning information so that some information remains available regardless of what is erased from the memory. The default provisioning information is enough to establish a connection over one of the available networks and allow reconstruction of a provisioning list.Type: GrantFiled: December 7, 2009Date of Patent: August 23, 2011Assignee: QUALCOMM IncorporatedInventors: Thadi M. Nagaraj, Dhinakar Radhakrishnan, Michael Green, Nikhil Jain, Nileshkumar J. Parekh, Qiuzhen Zou
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Patent number: 7949351Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method for performing position location on a subscriber unit in a terrestrial wireless telephone system using a set of satellites each transmitting a signal, the terrestrial wireless telephone system having base stations, including the steps of transmitting an aiding message from the base station to the subscriber unit, said aiding message containing information regarding a data boundary for each signal from the set of satellites, applying correlation codes to each signal yielding corresponding correlation data and accumulating said correlation data over an first interval preceding a corresponding data boundary yielding a first accumulation result, and a second interval following said corresponding data boundary yielding a second accumulation result.Type: GrantFiled: November 24, 2008Date of Patent: May 24, 2011Assignee: QUALCOMM IncorporatedInventors: Qiuzhen Zou, Gilbert C. Sih, Inyup Kang
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Publication number: 20110013681Abstract: A data Interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range “serial” type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.Type: ApplicationFiled: July 15, 2010Publication date: January 20, 2011Applicant: QUALCOMM IncorporatedInventors: Qiuzhen Zou, George A. Wiley, Brian Steele
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Publication number: 20100222076Abstract: Searcher hardware is multiplexed to perform simultaneous searches in either an IS-95 CDMA mode or a GPS mode. In the IS-95 mode, the search hardware is time-multiplexed into a number of searcher time slices, each of which can generate a PN sequence to despread a data sequence. In the GPS mode, the search hardware is configured as a number of distinct GPS channels, each of which can generate a Gold code sequence for tracking a GPS signal from a particular GPS satellite. This configuration allows the searcher to perform multiple GPS signal searches simultaneously. Signal searching in both IS-95 and GPS modes is performed at significantly higher speeds compared to conventional searcher hardware. Moreover, the search hardware can be dynamically configured to operate in either the IS-95 or the GPS mode, eliminating the need for dedicated circuitry for each mode of operation.Type: ApplicationFiled: May 7, 2010Publication date: September 2, 2010Applicant: QUALCOMM IncorporatedInventors: Wang Paul Poon, Qiuzhen Zou
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Publication number: 20100202316Abstract: Techniques for efficient searching in asynchronous systems, such as W-CDMA, as well as multi-mode searching, are disclosed. In one aspect, step one and step three search are performed in a single search engine. In another aspect, a search engine is configurable to search the offsets of a slot in step one search, producing sequential hypothesis energies, and peak detecting and sorting those energies. In yet another aspect, the peak detector and sorter are configurable to perform step one searching or step three/multimode searching. Various other aspects of the invention are also presented. These aspects have the benefit of circuit area and search-time efficiency which translate into reduced costs, increased standby time, increased acquisition speed, higher quality signal transmission, increased data throughput, decreased power, and improved overall system capacity.Type: ApplicationFiled: April 20, 2010Publication date: August 12, 2010Applicant: QUALCOMM IncorporatedInventors: Daisuke Terasawa, Deepu John, Hao Liu, Qiuzhen Zou, Sivarama Krishnan Venkatesan
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Patent number: 7738533Abstract: Searcher hardware is multiplexed to perform simultaneous searches in either an IS-95 CDMA mode or a GPS mode. In the IS-95 mode, the search hardware is time-multiplexed into a number of searcher time slices, each of which can generate a PN sequence to despread a data sequence. In the GPS mode, the search hardware is configured as a number of distinct GPS channels, each of which can generate a Gold code sequence for tracking a GPS signal from a particular GPS satellite. This configuration allows the searcher to perform multiple GPS signal searches simultaneously. Signal searching in both IS-95 and GPS modes is performed at significantly higher speeds compared to conventional searcher hardware. Moreover, the search hardware can be dynamically configured to operate in either the IS-95 or the GPS mode, eliminating the need for dedicated circuitry for each mode of operation.Type: GrantFiled: January 7, 2002Date of Patent: June 15, 2010Assignee: QUALCOMM IncorporatedInventors: Wang Paul Poon, Qiuzhen Zou
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Patent number: 7733821Abstract: In a wireless communication system, a method and apparatus of communicating between at least one base station and a core network is claimed. Signaling messages and voice streams are transported using packet-switched protocols (IP). A CIC field (Circuit Identity Code) is used to identify at least one VoIP streams. The CIC field may be interpreted as a UDP port number for the voice over IP stream. Also, a synchronization source or contributing source filed of a RTP header may be used as the CIC field.Type: GrantFiled: August 14, 2003Date of Patent: June 8, 2010Assignee: Qualcomm IncorporatedInventors: Sergio Kolor, Andrew Hunter, Michael Green, Nikhil Jain, Qiuzhen Zou
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Publication number: 20100087225Abstract: A wireless communications device is configurable to communicate with either one of two networks over a wireless medium, each of the two networks having a different air interface protocol. Additionally, the wireless device includes stored provisioning information for a set of networks of a first type and can map this first provisioning information into a second format for use with networks of a second type. The device also includes a non-volatile memory for storing default provisioning information so that some information remains available regardless of what is erased from the memory. The default provisioning information is enough to establish a connection over one of the available networks and allow reconstruction of a provisioning list.Type: ApplicationFiled: December 7, 2009Publication date: April 8, 2010Applicant: QUALCOMM IncorporatedInventors: Thadi M. Nagaraj, Dhinakar Radhakrishnan, Michael Green, Nikhil Jain, Nileshkumar J. Parekh, Qiuzhen Zou
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Patent number: 7630711Abstract: A wireless communications device is configurable to communicate with either one of two networks over a wireless medium, each of the two networks having a different air interface protocol. Additionally, the wireless device includes stored provisioning information for a set of networks of a first type and can map this first provisioning information into a second format for use with networks of a second type. The device also includes a non-volatile memory for storing default provisioning information so that some information remains available regardless of what is erased from the memory. The default provisioning information is enough to establish a connection over one of the available networks and allow reconstruction of a provisioning list.Type: GrantFiled: January 5, 2006Date of Patent: December 8, 2009Assignee: QUALCOMM IncorporatedInventors: Thadi M. Nagaraj, Dhinakar Radhakrishnan, Michael Green, Nikhil Jain, Nileshkumar J. Parekh, Qiuzhen Zou
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Publication number: 20090119659Abstract: The present invention relates to a method of computer based data card software downloading and updating, in which, the data card connects with computer via data communication interface and acts the power on initial process at same time, the data card downloads software kit from computer to RAM memory, and the data card operates the software kit downloaded to the RAM memory.Type: ApplicationFiled: September 26, 2008Publication date: May 7, 2009Applicant: SHANGHAI MOBILEPEAK SEMICONDUCTOR CO., LTD.Inventors: Qiuzhen Zou, Chunlai Yi, Fengchun Xu