Patents by Inventor Libo ZHU
Libo ZHU 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: 10623540Abstract: An electronic device may include a housing, processing circuitry carried by the housing, and at least one wireless transceiver carried by the housing and a NFC device carried by the housing. The electronic device may also include a display carried by the housing and having an internal surface within the housing and a display surface opposite the internal surface, and an NFC antenna mounted on and extending across at least a portion of the internal surface of the display, wherein the NFC antenna comprises a substrate and electrically conductive traces thereon defining a plurality of loops.Type: GrantFiled: February 15, 2017Date of Patent: April 14, 2020Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Libo Zhu, Scott Leonard Dill, Raymond Michael Dikun, Pha Cong Nguyen, Soo Liam Ooi, Randy Alan Wiessner
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Publication number: 20170163314Abstract: An electronic device may include a housing, processing circuitry carried by the housing, and at least one wireless transceiver carried by the housing and a NFC device carried by the housing. The electronic device may also include a display carried by the housing and having an internal surface within the housing and a display surface opposite the internal surface, and an NFC antenna mounted on and extending across at least a portion of the internal surface of the display, wherein the NFC antenna comprises a substrate and electrically conductive traces thereon defining a plurality of loops.Type: ApplicationFiled: February 15, 2017Publication date: June 8, 2017Inventors: Lizhong Zhu, Libo Zhu, Scott Leonard Dill, Raymond Michael Dikun, Pha Cong Nguyen, Soo Liam Ooi, Randy Alan Wiessner
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Patent number: 9622057Abstract: A mobile communication device and method for forwarding a new voice call, received at the device during a current voice call, to a paired computing device is provided. The method includes, at the device comprising a processor, a display device, a memory and a communication interface, receive a new voice call while a current voice call is active at the device and display, on the display device, a selectable option for forwarding the new voice call. Upon detecting selection of the selectable option: retrieve, from the memory one or more stored device identifiers, each stored device identifier associated with a paired computing device, display, on the display device, the one or more stored device identifiers and upon detecting selection of a device identifier of the one or more stored device identifiers, forward the new voice call, using the communication interface, to the paired computing device associated with the device identifier.Type: GrantFiled: January 15, 2016Date of Patent: April 11, 2017Assignee: BLACKBERRY LIMITEDInventors: Kai Qu, Jun Xu, Lizhong Zhu, Libo Zhu
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Patent number: 9609096Abstract: An electronic device may include a housing having a display opening therein, processing circuitry within the housing, and wireless transceiver circuitry within the housing and coupled to the processing circuitry. The electronic device may also include NFC transceiver circuitry within the housing and coupled to the processing circuitry, a display within the housing and coupled to the processing circuitry, the display having an external surface exposed through the display opening and having an internal surface within the housing, and an NFC antenna positioned within the housing behind and aligned with the internal surface of the display and coupled to the NFC transceiver circuitry.Type: GrantFiled: January 27, 2014Date of Patent: March 28, 2017Assignee: BLACKBERRY LIMITEDInventors: Lizhong Zhu, Libo Zhu, Scott Leonard Dill, Raymond Michael Dikun, Pha Cong Nguyen, Soo Liam Ooi, Randy Alan Wiessner
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Patent number: 9538436Abstract: An electronic device monitors a quality of a wireless connection between the electronic device and a first access point. Based on the monitoring and a collection of parameters relating to controlling handover between access points, a determination is made regarding whether the electronic device should be handed over to a second access point from the first access point, where the parameters differ for different combinations of the first access point and candidate destination access points for handover of the electronic device from the first access point.Type: GrantFiled: August 29, 2014Date of Patent: January 3, 2017Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Khaled Lakhdhar, Michael Peter Montemurro, Fei He, Qingmai Zhou, Jun Xu, Dong Wang, Zongyou Zhang, Mohammed Mahdi Hasan, Libo Zhu, Cristian Lambiri, Goran Hageltorn, Yan Wu, Daniel Fischer
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Publication number: 20160066225Abstract: An electronic device monitors a quality of a wireless connection between the electronic device and a first access point. Based on the monitoring and a collection of parameters relating to controlling handover between access points, a determination is made regarding whether the electronic device should be handed over to a second access point from the first access point, where the parameters differ for different combinations of the first access point and candidate destination access points for handover of the electronic device from the first access point.Type: ApplicationFiled: August 29, 2014Publication date: March 3, 2016Inventors: LIZHONG ZHU, KHALED LAKHDHAR, MICHAEL PETER MONTEMURRO, FEI HE, QINGMAI ZHOU, JUN XU, DONG WANG, ZONGYOU ZHANG, MOHAMMED MAHDI HASAN, LIBO ZHU, CRISTIAN LAMBIRI, GORAN HAGELTORN, YAN WU, DANIEL FISCHER
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Patent number: 9270337Abstract: A mobile wireless communications device includes a near-field communications (NFC) transceiver, NFC antennas and an NFC control circuit. The NFC transceiver generates a received signal strength based on a received signal from an adjacent NFC device. The NFC control circuit includes an antenna switch circuit coupled between the NFC transceiver and the NFC antennas. A capacitance sensing circuit is coupled to the NFC antennas to determine capacitance values thereof. A processor operates the antenna switch circuit based upon the received signal strength and the capacitance values.Type: GrantFiled: January 12, 2015Date of Patent: February 23, 2016Assignee: BLACKBERRY LIMITEDInventors: Lizhong Zhu, Libo Zhu, Robert Michael Philip Gondosch, Craig Stuart Mackenzie
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Publication number: 20150126116Abstract: A mobile wireless communications device includes a near-field communications (NFC) transceiver, NEC antennas and an NFC control circuit. The NFC transceiver generates a received signal strength based on a received signal from an adjacent NFC device. The NFC control circuit includes an antenna switch circuit coupled between the NFC transceiver and the NFC antennas. A capacitance sensing circuit is coupled to the NFC antennas to determine capacitance values thereof. A processor operates the antenna switch circuit based upon the received signal strength and the capacitance values.Type: ApplicationFiled: January 12, 2015Publication date: May 7, 2015Inventors: Lizhong ZHU, Libo ZHU, Robert Michael Philip GONDOSCH, Craig Stuart MACKENZIE
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Patent number: 9014734Abstract: A mobile wireless communications device may include a housing, a wireless transceiver carried by the housing, a processor carried by the housing and coupled to the wireless transceiver, and an NFC IC carried by the housing and coupled to the processor. The mobile wireless communications device may also include an NFC antenna carried by the housing, and a coupling circuit between the NFC IC and the NFC antenna. The coupling circuit may include a capacitive network including capacitors coupled in series with each other and in parallel with the NFC antenna, a transmit branch coupled between the NFC IC and a first node between a first pair of capacitors, and a receive branch coupled between the NFC IC and the first node between the first pair of capacitors.Type: GrantFiled: April 8, 2014Date of Patent: April 21, 2015Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Libo Zhu
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Patent number: 8934837Abstract: A mobile wireless communications device includes a near-field communications (NFC) transceiver, NFC antennas and an NFC control circuit. The NFC transceiver generates a received signal strength based on a received signal from an adjacent NFC device. The NFC control circuit includes an antenna switch circuit coupled between the NFC transceiver and the NFC antennas. A capacitance sensing circuit is coupled to the NFC antennas to determine capacitance values thereof. A processor operates the antenna switch circuit based upon the received signal strength and the capacitance values.Type: GrantFiled: January 3, 2013Date of Patent: January 13, 2015Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Libo Zhu, Robert Michael Philip Gondosch, Craig Stuart MacKenzie
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Publication number: 20140220889Abstract: A mobile wireless communications device may include a housing, a wireless transceiver carried by the housing, a processor carried by the housing and coupled to the wireless transceiver, and an NFC IC carried by the housing and coupled to the processor. The mobile wireless communications device may also include an NFC antenna carried by the housing, and a coupling circuit between the NFC IC and the NFC antenna. The coupling circuit may include a capacitive network including capacitors coupled in series with each other and in parallel with the NFC antenna, a transmit branch coupled between the NFC IC and a first node between a first pair of capacitors, and a receive branch coupled between the NFC IC and the first node between the first pair of capacitors.Type: ApplicationFiled: April 8, 2014Publication date: August 7, 2014Applicant: BLACKBERRY LIMITEDInventors: LIZHONG ZHU, LIBO ZHU
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Publication number: 20140187153Abstract: A mobile wireless communications device includes a near-field communications (NFC) transceiver, NFC antennas and an NFC control circuit. The NFC transceiver generates a received signal strength based on a received signal from an adjacent NFC device. The NFC control circuit includes an antenna switch circuit coupled between the NFC transceiver and the NFC antennas. A capacitance sensing circuit is coupled to the NFC antennas to determine capacitance values thereof. A processor operates the antenna switch circuit based upon the received signal strength and the capacitance values.Type: ApplicationFiled: January 3, 2013Publication date: July 3, 2014Applicant: RESEARCH IN MOTION LIMITEDInventors: LIZHONG ZHU, Libo ZHU, Robert Michael Philip GONDOSCH, Craig Stuart MACKENZIE
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Patent number: 8744357Abstract: A mobile wireless communications device includes a near field communications (NFC) device, and a magnetic sensor. A processor is coupled to the NFC device and the magnetic sensor, and is switchable between an active mode and an idle mode based upon the magnetic sensor. The processor is configured to remain in the active mode based upon communication via the NFC device irrespective of the magnetic sensor.Type: GrantFiled: December 1, 2011Date of Patent: June 3, 2014Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Libo Zhu
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Publication number: 20140145435Abstract: The present application provides a tube connector sealing structure configured to seal connecting portions among a tube, a connector main body and a nut, including a sealing ring, a supporting ring, and a retaining ring which are all arranged at an outer side of the tube, wherein an outer side end of the retaining ring and an outer side end of the sealing ring respectively abut against a threaded end opening of the connector main body and a clamping end of the nut, and one end of the supporting ring presses against an inner side end of the retaining ring, and a right angled cooperative connection is formed between the other end of the supporting ring and an inner side end of the sealing ring. The present application further discloses a tube connector having the above tube connector sealing structure.Type: ApplicationFiled: August 23, 2013Publication date: May 29, 2014Applicant: NINGBO SANLING ELECTRONICS CO., LTD.Inventors: Libo Zhu, Jianjiang Lin
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Publication number: 20140141835Abstract: An electronic device may include a housing having a display opening therein, processing circuitry within the housing, and wireless transceiver circuitry within the housing and coupled to the processing circuitry. The electronic device may also include NFC transceiver circuitry within the housing and coupled to the processing circuitry, a display within the housing and coupled to the processing circuitry, the display having an external surface exposed through the display opening and having an internal surface within the housing, and an NFC antenna positioned within the housing behind and aligned with the internal surface of the display and coupled to the NFC transceiver circuitry.Type: ApplicationFiled: January 27, 2014Publication date: May 22, 2014Applicant: BLACKBERRY LIMITEDInventors: LIZHONG ZHU, LIBO ZHU, SCOTT LEONARD DILL, RAYMOND MICHAEL DIKUN, PHA CONG NGUYEN, SOO LIAM OOI, RANDY ALAN WIESSNER
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Patent number: 8676116Abstract: An electronic device may include a housing having a display opening therein, processing circuitry within the housing, and wireless transceiver circuitry within the housing and coupled to the processing circuitry. The electronic device may also include NFC transceiver circuitry within the housing and coupled to the processing circuitry, a display within the housing and coupled to the processing circuitry, the display having an external surface exposed through the display opening and having an internal surface within the housing, and an NFC antenna positioned within the housing behind and aligned with the internal surface of the display and coupled to the NFC transceiver circuitry.Type: GrantFiled: October 7, 2011Date of Patent: March 18, 2014Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Libo Zhu, Scott Leonard Dill, Raymond Michael Dikun, Pha Cong Nguyen, Soo Liam Ooi, Randy Alan Wiessner
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Patent number: 8660612Abstract: An electronic device may include a housing including a speaker compartment, processing circuitry within the housing, and wireless transceiver circuitry within the housing and coupled to the processing circuitry. The electronic device may also include NFC transceiver circuitry within the housing and coupled to the processing circuitry, a speaker in the speaker compartment and coupled to the processing circuitry, and an NFC antenna positioned within the speaker compartment and coupled to the NFC transceiver circuitry.Type: GrantFiled: October 7, 2011Date of Patent: February 25, 2014Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Libo Zhu, Michael Stephen Corrigan
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Patent number: 8594566Abstract: A mobile wireless communications device may include a housing, a wireless transceiver carried by the housing, a processor carried by the housing and coupled to the wireless transceiver, and an NFC IC carried by the housing and coupled to the processor. The mobile wireless communications device may also include an NFC antenna carried by the housing, and a coupling circuit between the NFC IC and the NFC antenna. The coupling circuit may include a capacitive network including capacitors coupled in series with each other and in parallel with the NFC antenna, a transmit branch coupled between the NFC IC and a first node between a first pair of capacitors, and a receive branch coupled between the NFC IC and the first node between the first pair of capacitors.Type: GrantFiled: January 6, 2012Date of Patent: November 26, 2013Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Libo Zhu
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Patent number: 8576826Abstract: A mobile wireless communications device includes a wireless local area network (WLAN) radio configured to generate a WLAN transmit signal, and a Bluetooth radio configured to generate a Bluetooth transmit signal. A circulator is coupled downstream of an antenna. A transmit path couples the WLAN radio and the Bluetooth radio to the circulator such that the WLAN radio and the Bluetooth radio are capable of transmitting simultaneously. In addition, a receive path also couples the WLAN radio and the Bluetooth radio to the circulator such that the WLAN radio and the Bluetooth radio are capable of receiving simultaneously.Type: GrantFiled: May 26, 2011Date of Patent: November 5, 2013Assignee: BlackBerry LimitedInventors: Lizhong Zhu, Koon Hung Lee, Jun Xu, Libo Zhu, Fei He, Craig Stuart Mackenzie, Michael Stephen Corrigan, George Soliman Mankaruse, Perry Jarmuszewski
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Publication number: 20130178154Abstract: A mobile wireless communications device may include a housing, a wireless transceiver carried by the housing, a processor carried by the housing and coupled to the wireless transceiver, and an NFC IC carried by the housing and coupled to the processor. The mobile wireless communications device may also include an NFC antenna carried by the housing, and a coupling circuit between the NFC IC and the NFC antenna. The coupling circuit may include a capacitive network including capacitors coupled in series with each other and in parallel with the NFC antenna, a transmit branch coupled between the NFC IC and a first node between a first pair of capacitors, and a receive branch coupled between the NFC IC and the first node between the first pair of capacitors.Type: ApplicationFiled: January 6, 2012Publication date: July 11, 2013Applicant: Research In Motion LimitedInventors: Lizhong ZHU, Libo ZHU