Patents by Inventor Wen Zhao

Wen Zhao 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: 20160073286
    Abstract: In order to improve the quality of a telephone call communicated over a wireless local area network (WLAN), an electronic device (such as a cellular telephone) may obtain one or more performance metrics based on communication with another electronic device (such as an access point) via a connection in the WLAN. For example, the electronic device may receive the one or more performance metrics from the other electronic device and/or may determine the one or more performance metrics based on the performance of the communication. Then, the electronic device may compare the one or more performance metrics with an interference criterion. If the interference criterion is met, the electronic device may perform a remedial action, such as selectively discontinuing use of the WLAN to communicate the telephone call for a time interval. Otherwise, the electronic device may continue using the WLAN to communicate the telephone call.
    Type: Application
    Filed: September 30, 2014
    Publication date: March 10, 2016
    Inventors: Xiaowen Wang, Ajoy K. Singh, Wen Zhao, Shu Du, Kapil Chhabra, Rudy E. Rawlins
  • Patent number: 9277176
    Abstract: A method for offloading a video portion of a video call form a cellular network to a WLAN is provided. The method can include a wireless communication device participating in a video call with a remote device over a connection between the wireless communication device and a cellular network. The video call can include a first video stream carried over a first bearer on the cellular network and an audio stream carried over a second bearer on the cellular network. The method can further include the wireless communication device establishing a connection between the wireless communication device and a WLAN; performing a call setup procedure with the remote device to establish a second video stream over the WLAN; terminating the first video stream; and using the second video stream and the audio stream to continue the video call.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: March 1, 2016
    Assignee: Apple Inc.
    Inventors: Samy Khay-Ibbat, Sarma V. Vangala, Paul V. Flynn, Wen Zhao, Sreevalsan Vallath, Navid Damji
  • Patent number: 9271179
    Abstract: A method for customized coexistence management based on user behavior is disclosed. The method can include a wireless communication device determining a behavior pattern of a user of the wireless communication device; assigning a priority level to each of a first application and a second application based on the behavior pattern; using a first wireless communication interface to support data communication for the first application; using a second wireless communication interface to support data communication for the second application concurrent with data communication for the first application over the first wireless communication interface; and managing in-device coexistence of the first wireless communication interface and the second wireless communication interface during concurrent data communication for the first application and the second application based on the priority level assigned to the first application and the priority level assigned to the second application.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 23, 2016
    Assignee: Apple Inc.
    Inventors: Ajoy K. Singh, Wen Zhao
  • Patent number: 9265003
    Abstract: Various embodiments for reducing power consumption and radio frequency (RF) interference in a mobile computing device are described. In one or more embodiments, the mobile computing device may support cellular voice communication, wireless wide area network (WWAN) data communication, and wireless local area network (WLAN) data communication. The mobile computing device may be arranged to disable WWAN data communication whenever an available WLAN is detected to reduce RF interference and/or power consumption. Other embodiments are described and claimed.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: February 16, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Wen Zhao, Isabel Mahe
  • Patent number: 9253714
    Abstract: A multi-mode communication device having a scan optimizer capable of prioritizing scan frequencies for different radio access technologies (RATs) during a network search. The scan frequency prioritization may be based on various network coverage considerations associated with RAT availability, RAT density within a region, geographic location, historic attachment for the multi-mode device, an operation mode of the multi-mode device, etc. The multimode device can utilize its scan optimizer to generate an optimized scan schedule to be employed for a limited duration during a network search to improve its likelihood of success in detecting and/or attaching to a network associated with a prioritized RAT. A default scan schedule having equal scan frequency prioritization can be employed by the multi-mode device at a time when the limited duration of the optimized scan schedule expires and no networks associated with a prioritized RAT have been acquired.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: February 2, 2016
    Assignee: Apple Inc.
    Inventors: Wenping Lou, Wen Zhao
  • Publication number: 20160028425
    Abstract: A method for facilitating in-device coexistence between wireless communication technologies on a wireless communication device is provided. The method can include transmitting data traffic from the wireless communication device via an aggressor wireless communication technology; determining occurrence of an in-device interference condition resulting from transmission of the data traffic via the aggressor wireless communication technology interfering with concurrent data reception by the wireless communication device via a victim wireless communication technology; and reducing a bit rate of the data traffic transmitted via the aggressor wireless communication technology in response to the in-device interference condition.
    Type: Application
    Filed: June 1, 2015
    Publication date: January 28, 2016
    Inventors: Wen Zhao, Paul V. Flynn, William S. Burchill, Vinay R. Majjigi, Xiaowen Wang, Syed A. Mujtaba, Kee-Bong Song
  • Patent number: 9247473
    Abstract: Motion-based handoff control techniques are disclosed. For example, an apparatus may include a signal strength determination module, a motion determination module, and a handoff controller. The signal strength determination module generates signal strength information corresponding to the strength of a wireless signal received from a first wireless link. From this information, the motion determination module determines a motion characteristic of the apparatus. Based on the motion characteristic, the handoff controller performs handoff operations for a second wireless link. In this manner, handoff operations may be tailored to the operational characteristics of the apparatus. For instance, certain handoff operations may be halted when the motion characteristic indicates the apparatus having a substantially stationary position. Other embodiments are described and claimed.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: January 26, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Wen Zhao, Jerome Tu, Isabel Mahe, Jianxiong Shi, Olivier Boireau, Alexander Fertelmeister, Yury Fomin
  • Patent number: 9241245
    Abstract: Management of unwanted phone calls and/or text messages can be performed by allowing a user to create a personalized list of unwanted calls and/or text messages at the user's device and synchronizing that personalized list between a storage system in the user's device and a remote storage in a network to which the device can be coupled. In one embodiment, the remote storage can be a cloud based backup system for the user's contacts and content and the user can access a full list of the unwanted phone numbers through a web server but the full list is not accessible on the device except through a web browser that retrieves the full list from the web server.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: January 19, 2016
    Assignee: Apple Inc.
    Inventors: Wenping Lou, Wen Zhao
  • Publication number: 20160004632
    Abstract: A computing system is adapted to be coupled with a storage device or a remote device and includes a logic module with a first firmware, a control module coupled with the storage device, a management module coupled with the control module and the logic module, and a central process unit (CPU). The storage device includes a second firmware and an operating system. The remote device includes the second firmware. The CPU is coupled with the control module and operates the operating system. When the CPU receives a burning instruction, the CPU burns the second firmware into the logic module through the control module and the management module.
    Type: Application
    Filed: August 11, 2014
    Publication date: January 7, 2016
    Inventors: TIAN-WEN ZHAO, KUN LIU
  • Publication number: 20150376136
    Abstract: The present invention includes compounds useful as modulators of TRPM8, such as compounds of Formulae (Ia), (Ib) and (Ic), and the subgenus and species thereof; personal products containing those compounds; and the use of those compounds and the personal products, particularly the use of increasing or inducing chemesthetic sensations, such as cooling or cold sensations.
    Type: Application
    Filed: February 19, 2014
    Publication date: December 31, 2015
    Inventors: Lyudmyla Chumakova, Andrew Patron, Chad Priest, Donald Karanewsky, Rachel Kimmich, Brant Clayton Boren, Jeffrey Robert Hammaker, Volodymyr Chumakov, Wen Zhao, Alain Noncovich, Jane Ung
  • Patent number: 9226120
    Abstract: In one illustrative example, a technique in a mobile communication device which is operative in a wireless communication network for Push-To-Talk (PTT) communications involves receiving, at the mobile communication device, presence information associated with at least one other mobile communication device, the presence information including at least one of a current availability indication or capability indication; and buffering a PTT communication prior to its transmission from the mobile communication device based on the presence information. The current availability or capability indication may be an automatic answering indication or a media capability indication, as examples.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: December 29, 2015
    Assignee: BlackBerry Limited
    Inventors: Andrew Allen, Xin Jin, Wen Zhao
  • Patent number: 9215639
    Abstract: A method for transitioning a video call is provided. The method can include a wireless communication device participating in a video call with a remote communication device via a first video call session established over a connection between the wireless communication device and a first cellular network. The video call can include a packet switched video stream carried over a first bearer and an audio stream carried over a second bearer. The method can further include the wireless communication device determining a degradation in a connection quality for the first cellular network; transitioning to a legacy cellular network having a circuit switched domain in response to the degradation in connection quality for the first cellular network; establishing a second video call session on the legacy cellular network; and using the second video call session to continue the video call on the legacy cellular network.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: December 15, 2015
    Assignee: Apple Inc.
    Inventors: Samy Khay-Ibbat, Sarma V. Vangala, Paul V. Flynn, Wen Zhao, Sreevalsan Vallath, Navid Damji
  • Patent number: 9215655
    Abstract: In video conferencing over a radio network, the radio equipment is a major power consumer especially in cellular networks such as LTE. In order to reduce the radio power consumption in video conferencing, it is important to introduce an enough radio inactive time. Several types of data buffering and bundling can be employed within a reasonable range of latency that doesn't significantly disrupt the real-time nature of video conferencing. In addition, the data transmission can be synchronized to the data reception in a controlled manner, which can result in an even longer radio inactive time and thus take advantage of radio power saving modes such as LTE C-DRX.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: December 15, 2015
    Assignee: APPLE INC.
    Inventors: Chris Y. Chung, Wen Zhao, Luciano M. Verger, Hyeonkuk Jeong, Gang Lu, Srinivasan Vasudevan, Xiaosong Zhou, Hsi-Jung Wu, James O. Normile
  • Publication number: 20150341869
    Abstract: A method for controlling transmission power in accordance with a total transmission power limit in a multi-radio wireless communication device including a master radio and a slave radio is provided. The method can include the wireless communication device determining, at the master radio, a transmission power of the master radio. The method can further include the wireless communication device providing information indicative of the transmission power of the master radio from the master radio to the slave radio. The method can additionally include determining, at the slave radio, an allowable transmission power for the slave radio. A sum of the allowable transmission power and the transmission power of the master radio may not exceed the total transmission power limit.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 26, 2015
    Applicant: Apple Inc.
    Inventors: Indranil Sen, Mohit Narang, Digvijay Arjunrao Jadhav, William S. Burchill, Vinay R. Majjigi, Paul V. Flynn, Wen Zhao, Matthew L. Semersky
  • Patent number: 9189988
    Abstract: Techniques involving the management of display parameters are disclosed. For example, an apparatus may include a display, a radio module, and a control module. The display employs various operational parameters, which can take on different values. Exemplary parameters include refresh rate and/or pixel clock rate. The radio module may receive a wireless signal at one or more reception frequencies. The control module may select values for these operational parameters of the display. This selection may be made according to characteristics of interference that would be emitted from the display at the one or more reception frequencies. Upon making this selection, the control module may direct the display to employ the selected parameter values.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: November 17, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jerome C. Tu, Olivier Boireau, Isabel Mahe, Wen Zhao, Yury Fomin, Jianxiong Shi, Alexander Fertelmeister
  • Publication number: 20150296396
    Abstract: Electronic devices may be provided that contain wireless communication circuitry. The wireless communication circuitry may include radio-frequency transceiver circuitry coupled to antennas by switching circuitry. Multiple radio access technologies may be supported. A device may include first and second antennas. Control circuitry can configure the transceiver circuitry and switching circuitry to support operation of the device in active and idle modes for each radio access technology. In some configurations, both antennas may be used to support operations associated with one of the radio access technologies. In other configurations, the first antenna may be used to support operations with a first of the radio access technologies while the second antenna is used to support operations with a second of the radio access technologies.
    Type: Application
    Filed: June 25, 2015
    Publication date: October 15, 2015
    Inventors: Syed Aon Mujtaba, Wen Zhao, Xiaowen Wang, Vinay Majjigi, Isabel G. Mahe
  • Patent number: 9143902
    Abstract: A method and apparatus for creating a communication group for a given type of communication using a mobile station for initiating communication sessions of the given type among mobile stations are disclosed. A group definition for determining members of the new communication group is composed from one or more contacts from the electronic address book such as by selecting from the address book using the mobile station. The group definition may include logical operators to define the combination of contacts. A name may be specified for the new group. The assembly of the list of members may be performed by the mobile station, a communication network server for maintaining groups (e.g. a Group and List Management Server (GLMS)) or an email server.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: September 22, 2015
    Assignee: BlackBerry Limited
    Inventors: Runbo Fu, Wen Zhao, Xin Jin
  • Patent number: 9137629
    Abstract: Various embodiments of systems and techniques for providing location-based services (LBS) to a mobile computing device having a dual processor architecture are described. In one or more embodiments, the mobile computing device may comprise or implement hardware and/or software configured to enable LBS and data communications sessions using a single active data stack at any particular point in time. Other embodiments are described and claimed.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: September 15, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Wen Zhao, Isabel Ge, Dan Myers, Arun Mathias, Igor Braslavsky, Perry Zabaldo, Darren Lee Ang, Craig Hamilton, Eric Liu, Janell Paulson
  • Patent number: 9084128
    Abstract: Electronic devices may be provided that contain wireless communication circuitry. The wireless communication circuitry may include radio-frequency transceiver circuitry coupled to antennas by switching circuitry. Multiple radio access technologies may be supported. A device may include first and second antennas. Control circuitry can configure the transceiver circuitry and switching circuitry to support operation of the device in active and idle modes for each radio access technology. In some configurations, both antennas may be used to support operations associated with one of the radio access technologies. In other configurations, the first antenna may be used to support operations with a first of the radio access technologies while the second antenna is used to support operations with a second of the radio access technologies.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: July 14, 2015
    Assignee: Apple Inc.
    Inventors: Syed Aon Mujtaba, Wen Zhao, Xiaowen Wang, Vinay Majjigi, Isabel G. Mahe
  • Patent number: 9071703
    Abstract: An apparatus and method for telephony tone signal and character code generation for QWERTY keyboards includes a QWERTY style keyboard, a processor and a keyboard mode control software module. The QWERTY style keyboard has a plurality of letter keys, wherein each letter key is configured to generate a unique input signal. The processor is coupled to the keyboard and is configured to convert each unique input signal generated by the letter keys into a character code and/or a telephony tone signal. The keyboard mode control software module operates on the processor, and controls whether the processor converts the unique input signals from the letter keys into character codes or telephony tone signals.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: June 30, 2015
    Assignee: BlackBerry Limited
    Inventors: Wen Zhao, Runbo Fu, Xin Jin, Pokin Yeung, Karen A. Rudnitski